ABE Susumu

    Experimental Farm Lecturer
Last Updated :2024/03/24

Researcher Information

URL

J-Global ID

Research Areas

  • Life sciences / Plant nutrition, soil science

Academic & Professional Experience

  • 2014  Kindai UniversityFaculty of Agriculture講師

Published Papers

  • Geostatistical estimation of surface soil carbon stock in Mt. Wakakusa grassland of Japan
    KAMARUDIN Khairun; TOMITA Mayu; KONDO Keiko; ABE Shin
    Landscape and Ecological Engineering 15 (2) 215 - 221 2019 [Refereed]
  • Does soil fertility decline under a smallholder rubber farming? The case of a West Sumatran lowland in Indonesia
    UMAMI Irwin; KAMARUDIN Khairun; HERMANSAH; ABE Shin
    Japan Agricultural Research Quarterly 53 (4) 279 - 287 2019 [Refereed]
  • Geostatistical mapping and spatial variability of selected soil properties in Mt. Wakakusa grassland of Japan
    KAMARUDIN Khairun; TOMITA Mayu; KONDO Keiko; ABE Shin
    Japan Agricultural Research Quarterly 53 (4) 265 - 277 2019 [Refereed]
  • Comparing rates of rock weathering and soil formation between two temperate forest watersheds differing in parent rock and vegetation type
    ABE Shin; HARADA Takahiro; OKUMURA Hiroshi; WAKATSUKI Toshiyuki
    Japan Agricultural Research Quarterly 53 (3) 169 - 179 2019 [Refereed]
  • 山科千里; 阿部 進
    日本土壌肥料学雑誌 89 (2) 161 - 167 2018/04 [Refereed]
  • Spatial variability of selected chemical properties of lateritic soil under mango cultivation
    Nurhaliza M; SHAHIDIN; Roslan ISMAIL; Khairun N; KAMARUDIN; Susumu S. ABE
    Tropical Agriculture and Development 62 (2) 104 - 108 2018 [Refereed]
  • Soil micronutrient availability as affected by land use and management in a tropical volcanic mountain area of West Sumatra, Indonesia
    Susumu S. ABE; Kenta ASHIDA; Khairun N; KAMARUDIN; Maulana I. KAMIL; Irwin M. UMAMI; HERMANSAH
    Tropical Agriculture and Development 62 (3) 136 - 140 2018 [Refereed]
  • 阿部 進
    日本土壌肥料学雑誌 = Japanese journal of soil science and plant nutrition 日本土壌肥料学会 ; 1927- 88 (2) 153 - 157 0029-0610 2017/04
  • 田端 敬三; 白井 佑季; 奥村 博司; 阿部 進
    日本緑化工学会誌 日本緑化工学会 42 (3) 437 - 443 0916-7439 2017/02
  • Keizo TABATA; Yuuya SUZUKI; Hiroshi OKUMURA; Shin ABE
    日本緑化工学会誌 43 (1) 68 - 73 0916-7439 2017 [Refereed]
  • Susumu S. Abe; Seiko Hashimoto; Takayuki Umezane; Takeshi Yamaguchi; Sadahiro Yamamoto; Satoshi Yamada; Tsuneyoshi Endo; Noboru Nakata
    ARCHIVES OF AGRONOMY AND SOIL SCIENCE TAYLOR & FRANCIS LTD 62 (9) 1208 - 1221 0365-0340 2016/09 
    The present study examined the effect of excessive application of farmyard manure (FM) on rice production and environmental pollution in paddy fields of Japan. A long-term field experiment was conducted during the period 1976-2006 to examine the trends of rice yield and yield components as affected by the excessive FM application (20Mgha(-1)year(-1) containing 110kg N, 180kg P2O5, and 320kg K2O). Rice growth, soil fertility, and surface water quality were also assessed in the final year (2006). The results obtained were compared with those of a conventional practice with recommended doses of inorganic fertilizer (IF), i.e. 85kg N, 68kg P2O5, and 53kg K2O ha(-1) year(-1), and an unfertilized control (CR). The excessive FM application resulted in a gradual decrease in grain yield, which was mostly explained by the reduction of grain fertility under the luxuriant rice growth. This reduction may have been due to the higher accumulation of soil nutrients such as N, P, and K. Moreover, the excessive FM application increased chemical oxygen demand, total P, and soluble K concentrations in the paddy surface water and their effluent loads compared to the conventional practice with the recommended IF application.
  • 中嶋真希; 田端敬三; 奥村博司; 阿部進
    日本緑化工学会誌 42 (1) 86‐91  0916-7439 2016/08
  • S. S. Abe; Y. Yamasaki; T. Wakatsuki
    RICE SCIENCE ELSEVIER SCIENCE BV 23 (4) 196 - 202 1672-6308 2016/07 
    Silicon (Si) is known as a beneficial nutrient in the cultivation of rice, playing a key role in photosynthesis enhancement, lodging resistance and tolerance to various environmental stress. The present study aimed to examine available Si content in both lowland soils (n = 29) and neighboring upland soils (n = 21) collected from Benin and Nigeria and to evaluate the validity of the assessment results through a pot experiment. Our results revealed that the acetate-buffer method predicted Si concentration in rice straw at the harvest stage (R-2 = 0.68, P < 0.01) better than the anaerobic-incubation method (R-2 = 0.31, P > 0.05), and 76% of the uplands and 38% of the lowlands were deficient (< 50 mg/kg) in acetate-buffer soluble Si. These findings suggest that the Si-deficiency soils prevail across the study area, making rice plants starved for Si and prone to environmental stress.
  • 田端敬三; 小宅由似; 奥村博司; 若月利之; 阿部進
    日本緑化工学会誌 日本緑化工学会 41 (4) 448‐458 - 458 0916-7439 2016/05
  • Susumu S. Abe
    SOIL SCIENCE AND PLANT NUTRITION TAYLOR & FRANCIS LTD 62 (2) 127 - 132 0038-0768 2016/04 
    The present study aimed to assess the dynamics of oxyhydroxides via termite mounds in a tropical savannah of Central Nigeria, where the soils often contain oxyhydroxides as a major component of soil minerals. To this end, the quantities of oxyhydroxides stored in mounds built by Macrotermes bellicosus (Smeathman) were compared to those stored in surface (Ap1) soils, and their turnover rates were estimated. Both the mound wall and nest of M. bellicosus were enriched two- to 10-fold with acidified ammonium oxalate soluble iron (Fe-o) and aluminum (Al-o) and dithionite-citrate-bicarbonate (DCB) soluble iron (Fe-d) and aluminum (Al-d) relative to the adjacent surface soil horizon. These oxyhydroxide contents were positively correlated with the clay content (P<0.05), suggesting that M. bellicosus preferentially used silicate clay-associated oxyhydroxides for mound construction. The Fe-d, Al-d and DCB-soluble manganese (Mn-d) preserved in the M. bellicosus mounds ran up to 112 +/- 25.6, 5.72 +/- 1.41 and 2.17 +/- 0.68kgha(-1), accounting for 1.91 +/- 0.23%, 1.00 +/- 0.60% and 0.35 +/- 0.09% of the total amount stored in the surface soil horizon, respectively. Furthermore, the estimated turnover rates of Fe-d, Al-d and Mn-d were 6.6, 0.33 and 0.14kgha(-1) year(-1), respectively. These findings suggest that the mound-building termites significantly impacted the dynamics of free oxyhydroxides in an African savannah soil.
  • 阿部 進; 濱崎 翔悟; 若月 利之
    日本土壌肥料学会講演要旨集 一般社団法人 日本土壌肥料学会 62 285 - 285 2016
  • NAKAJIMA Maki; TABATA Keizo; OKUMURA Hiroshi; ABE Shin
    Journal of the Japanese Society of Revegetation Technology 日本緑化工学会 42 (1) 86 - 91 0916-7439 2016 
    We investigated flowering of <I>Rhododendron reticulatum</I> in a sub-urban secondary forest of Nara City and examined factors affecting it. In the best predicting model of the flowering, i) the height of <I>R. reticulatum</I>, ii) soil exchangeable potassium content and iii) the ratio of basal area of <I>R. reticulatum</I> to its competitors standing within 3 m radius from <I>R. reticulatum</I> were selected as explanatory variables. The variable iii) was selected in each top two model. This suggests that managing the competitors standing within 3 m radius from <I>R. reticulatum</I> is important to promote the <I>R. reticulatum</I> flowering.
  • 阿部進; 藤本直也; 若月利之
    農業農村工学会誌 農業土木学会 83 (10) 853 - 858 1882-2770 2015/10
  • ABE Susumu S; TAKAHASHI Ryo; YAMAJI Eiji; WAKATSUKI Toshiyuki
    Tropical Agriculture and Development Japanese Society for Tropical Agriculture 59 (2) 83 - 87 1882-8450 2015
  • 阿部進
    Edaphologia The Japanese Society of Soil Zoology 93 (93) 29 - 37 0389-1445 2014/03 
    Soil macro-invertebrates such as earthworms (Oligochaeta) and termites (Isoptera) are regarded as soil ecosystem engineers which affect the availability of resources to other organisms through their modifications and turbations of the physical environments. In spite of great awareness of their bio-physico-chemical influences on soil forming processes, it has been hardly recognized that these ecosystem engineers directly or indirectly have a significant impact on weathering of soil minerals. The direct effects include physical breakdown of mineral particles or chemical alternation by secretions derived from the engineers, while the indirect influences originate from symbiotic microbes which produce organic acids and enzymes that dissolve soil minerals. This paper reviews available literature on the influence of soil ecosystem engineers with a focus on earthworms and termites on weathering of soil minerals and discusses further challenges and future prospects on this topic.
  • ABE Shin
    Japanese Journal of Soil Science and Plant Nutrition Japanese Society of Soil Science and Plant Nutrition 85 (1) 61 - 61 2014
  • S. Abe Susumu; Wakatsuki Toshiyuki
    Tropics JAPAN SOCIETY OF TROPICAL ECOLOGY 22 (4) 169 - 177 0917-415X 2014 
    The present study aimed to examine the influence of termites (Isoptera) on soil clay mineralogy. To this end, we analyzed the clay mineralogy in the mound structures of <I>Macrotermes bellicosus</I> (Macrotermitinae) and in the adjacent natural (termite-free) soil horizons along an inland valley toposequence in central Nigeria, and compared them using differential X-ray diffraction approach. The results indicated that: (i) <I>M. bellicosus</I> modified soil clay mineralogy to minor extent regardless of the substantial enrichment of clay particles in the mound structures; (ii) the mound structures generally had a decreased abundance of quartz balanced with an increased abundance of phyllosilicate minerals such as smectite and/or kaolinite when compared with the adjacent near-surface (Ap2) horizons; and (iii) there was a subtle difference in clay mineralogy between the mound wall and the hive in spite of a large disparity in particle-size distribution. These findings suggest that soil clay mineralogy is not linked to the ecological requirements of <I>M. bellicosus</I> and the apparent change in the clay mineralogy in mound structures is caused by the preferential selection of fine soil particles during the mound construction rather than by a preference among clay mineral species.
  • 阿部進
    日本土壌肥料学雑誌 Japanese Society of Soil Science and Plant Nutrition 83 (2) 183 - 196 0029-0610 2012/04
  • Susumu S. Abe; Takashi Kotegawa; Taisuke Onishi; Yoshinori Watanabe; Toshiyuki Wakatsuki
    ECOLOGICAL RESEARCH SPRINGER TOKYO 27 (1) 219 - 227 0912-3814 2012/01 
    This study investigated the influence of mound-building termites on soil particle dynamics on the land surface and in soil-forming processes by examining the amount of soil particles in mound structures of Macrotermes bellicosus in a highly weathered Ultisol of tropical savanna. Soil particle turnover via the mounds was estimated using particle stock data and soil turnover data from previous studies. A 4-ha study plot with six mounds of relatively uniform shape and size was investigated. Soil mass constituting the mounds was 6,166 +/- 1,581 kg mound(-1) within which the mound wall and nest body accounted for 5,002 +/- 1,289 and 1,164 +/- 293 kg, respectively. The mound wall contained a significantly larger amount of clay (252 +/- 9.97 g kg(-1)) balanced with a lower sand content (676 +/- 26.5 g kg(-1)) than in the adjacent surface (Ap1) horizon, (46.4 +/- 12.8 g clay kg(-1); 866 +/- 83.2 g sand kg(-1)); the nest body had much higher clay content (559 +/- 51.0 g kg(-1)) but less sand (285 +/- 79.2 g kg(-1)) than the mound wall. As a result, the mounds of M. bellicosus accumulated clay of 2,874 +/- 781 kg ha(-1) (corresponding to 2.52% of clay stock in the Ap1 horizon) along with an estimated clay turnover rate of 169 kg ha(-1) year(-1). These findings suggest a positive feedback effect from termite mound-building activity on soil particle dynamics in tropical savanna ecosystems: M. bellicosus preferentially use subsoilmaterial formound construction, resulting in relocation of illuvial clay in the subsoil to the land surface where clay eluviation from the surface soil and its illuviation in the subsoil are major soil-forming processes.
  • Susumu S. Abe; Yoshinori Watanabe; Taisuke Onishi; Takashi Kotegawa; Toshiyuki Wakatsuki
    SOIL SCIENCE AND PLANT NUTRITION WILEY-BLACKWELL 57 (6) 786 - 795 0038-0768 2011/12 
    The role of mounds of the fungus-growing termite Macrotermes bellicosus (Smeathman) in nutrient recycling in a highly weathered and nutrient-depleted tropical red earth (Ultisol) of the Nigerian savanna was examined by measuring stored amounts of selected nutrients and estimating their rates of turnover via the mounds. A study plot (4 ha) with a representative termite population density (1.5 mounds ha(-1)) and size (3.7 +/- 0.4 m in height, 2.4 +/- 0.2 m in basal diameter) of M. bellicosus mounds was selected. The mounds were found to contain soil mass of 9249 +/- 2371 kg ha(-1), composed of 7502 +/- 1934 kg ha(-1) of mound wall and 1747 +/- 440 kg ha(-1) of nest body. Significant nutrient enrichment, compared to the neighboring topmost soil (Ap1 horizon: 0-16 cm), was observed in the nest body for total nitrogen (N) and exchangeable calcium (Ca), magnesium (Mg) and potassium (K), and in the mound wall for exchangeable K only. in contrast, available (Bray-1) phosphorus (P) content was found to be lower in both the mound wall and the nest body than in the adjacent topmost soil horizon. Consequently, the mounds formed by M. bellicosus contained 1.71 +/- 0.62 kg ha(-1) of total N, 0.004 +/- 0.003 kg ha(-1) of available P, 3.23 +/- 0.81 kg ha(-1) of exchangeable Ca, 1.11 +/- 0.22 kg ha(-1) of exchangeable Mg and 0.79 +/- 0.21 kg ha(-1) of exchangeable K. However, with the exception of exchangeable K (1.2%), these nutrients amounted to less than 0.5% of those found in the topmost soil horizon. The soil nutrient turnover rate via M. bellicosus mounds was indeed limited, being estimated at 1.72 kg ha(-1) for organic carbon (C), 0.15 kg ha(-1) for total N, 0.0004 kg ha(-1) for available P, 0.15 kg ha(-1) for exchangeable Ca, 0.05 kg ha(-1) for exchangeable Mg, and 0.06 kg ha(-1) for exchangeable K per annum. These findings suggest that the mounds of M. bellicosus, while being enriched with some nutrients to create hot spots of soil nutrients in the vicinity of the mounds, are not a significant reservoir of soil nutrients and are therefore of minor importance for nutrient cycling at the ecosystem scale in the tropical savanna.
  • S. S. Abe; T. Wakatsuki
    OUTLOOK ON AGRICULTURE I P PUBLISHING LTD 40 (3) 221 - 227 0030-7270 2011/09 
    The green revolution has yet to be realized in Sub-Saharan Africa (SSA) even 40 years after its success in tropical Asia, suggesting that there was a missing element in the basic principles underlying the Asian green revolution when they were transferred to SSA. The authors argue that this missing element is 'ecotechnology'. Ecotechnology improves the crop growing environment in farmers' fields and enables them to accommodate basic green revolution technologies such as modern varieties, chemical fertilizers and irrigation facilities. The authors focus on sawah ecotechnology, a sustainable rice production technology. The term 'sawah' refers to a levelled, bunded and puddled rice field under controlled submergence, and 'sawah ecotechnology' indicates the technology for designing, developing and managing the sawah system. The sawah system development potential is at least 20 million ha in the West Africa (WA) subregion only. Realizing this potential, WA can sustainably produce food for more than 300 million people, as well as enabling the conservation and restoration of hundreds of millions of hectares of upland forests, contributing to carbon sequestration and global warming mitigation in the future.
  • Susumu S. Abe; M. Moro Buri; Roland N. Issaka; Paul Kiepe; Toshiyuki Wakatsuki
    JARQ-JAPAN AGRICULTURAL RESEARCH QUARTERLY JAPAN INT RESEARCH CENTER AGRICULTURAL SCIENCES 44 (4) 343 - 355 0021-3551 2010/10 
    In this paper, we review the soil fertility characteristics and the nature of material in the West African lowlands in comparison with paddy soils in tropical Asia to examine their potential for rice cultivation. Soil samples collected from major lowland ecosystems, i.e., inland valleys (185 locations) and flood plains (62 locations), in 13 countries (Benin, Burkina Faso, Cameroon, Cote d'Ivoire, Ghana, Guinea, Niger, Nigeria, Liberia, Mali, Senegal, Sierra Leone, and Togo) generally show low values of pH, total C and N, available (Bary-2) P, exchangeable Ca and Mg, effective cation exchange capacity (ECEC), and clay content. These properties of the 87 topsoil samples selected from 247 collected samples are well associated with mineralogical composition. The clay and primary minerals predominantly consist of kaolinite and quartz, respectively, which suggests that the lowland soils in the region have low nutrient-holding capacity and a limited potential for inherent nutrient supply. In general, soil pH, available P, exchangeable bases (Ca, Mg, K, and Na), and ECEC decrease while total C, total N and exchange acidity (Al and FI) increase with increasing rainfall. This tendency is mostly explained by the enhanced biomass production and soil weathering sequence governed by the climate. In terms of rice production, the lowland soils in West Africa have lower values of general fertility parameters and poorer mineralogical characteristics compared to paddy soils in tropical Asia, which includes Bangladesh, Cambodia, India, Indonesia, Malaysia, Myanmar, Philippines, Sri Lanka, and Thailand. In addition, deficit levels of S and Zn for rice production are widely observed in the lowland soils in West Africa. These findings suggest that soil fertility characteristics show substantially less potential for rice production in West Africa than in tropical Asia.
  • Susumu S. Abe; Toshiyuki Wakatsuki
    PEDOBIOLOGIA ELSEVIER GMBH, URBAN & FISCHER VERLAG 53 (5) 301 - 306 0031-4056 2010 
    There has been less concern about soil mineralogical alteration than about soil physical, chemical and biological changes induced by termite nest-building activity. Furthermore, much less attention has been paid to free sesquioxides than to phyllosilicate minerals. In the present study, we conducted field morphological observations and selective dissolution analysis to characterize free sesquioxides in termite (Macrotermes bellicosus) mounds as compared with surrounding pedons in different toposequence positions, i.e., seasonally flooded valley bottom, hydromorphic fringe and well-drained upland sites. Distinctive redoximorphic features, such as surface yellowish layers on mound structures from the fringe site, indicate possible alteration of iron sesquioxide forms in the mounds due to the transportation of soil from reductive (aquic subsoil) to oxidative (epigeal mound) environments by the nest-building activity of M. bellicosus. On the other hand, the iron-soluble content in the dithionite-citrate-bicarbonate (DCB) system (Fed) was generally higher in the mound structures than at the adjacent sub-surface (Ap2) horizon at each toposequence position, while there was less difference in the content of acid ammonium oxalate (AAO) extractable iron (Fe(o)) as compared to Fed. As a consequence, the iron activity index (Fe(d)/Fe(o) ratio) was found for the most part to be lower in the mound structures than in the neighboring Ap2 horizon. In addition, the content of Fe(d), AAO-soluble Al (Al(o)) and DCB-extractable Al (Al(d)) was significantly correlated with clay content in these soils. These findings suggest that M. bellicosus preferentially collects clay particles, probably from the clay-rich subsoils, such as the argillic horizon, which has been formed by the co-migration of phyllosilicate minerals and relatively crystalline sesquioxides. The species then likely incorporates them into the mounds, which induces an increase in the Fed content relative to that of Fe(o), resulting in a decreased iron activity index in the mound structures. (C) 2010 Elsevier GmbH. All rights reserved.
  • Regina H. Y. Fu; Susumu S. Abe; Toshiyuki Wakatsuki; Makoto Maruyama
    JARQ-JAPAN AGRICULTURAL RESEARCH QUARTERLY JAPAN INT RESEARCH CENTER AGRICULTURAL SCIENCES 44 (1) 53 - 60 0021-3551 2010/01 
    This paper examines the characteristics of a traditional farmer-managed irrigation system in Nigeria, through the presentation of a detailed case study. It documents the development of a traditional irrigation system in the inland valley of the Bida region in central Nigeria and the features of its operation and management. The physical structure and the composition of system Users were surveyed in detail. In addition, the characteristics of community management of several irrigation systems ill the region were investigated. Farmers were able to mobilize necessary local resources tor irrigation development and maintenance although they did this without any external support. The irrigation management institution in file area was highly linked to the local land tenure system. The involvement of landlords in the irrigation community greatly affected the performance of irrigation management. There was no clear definition of water rights. In times of water shortage, water was rotated and shared but water scrambling, had become a severe problem in recent years with the higher demand for off-season crops. Irrigation communities were organized informally without tiers of nested organizations. Unfairness in water distribution and contribution to system maintenance existed between top-enders and tail-enders of irrigation canals. Nevertheless, the multi-layered and fragmented land ownership of the region made coordination among different irrigation communities difficult and the unfairness problem could not be solved without institutional changes.
  • S. S. Abe; S. Hashimoto; T. Umezane; T. Yamaguchi; S. Yamamoto; S. Yamada; T. Endo; N. Nakata
    COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS TAYLOR & FRANCIS INC 41 (16) 1944 - 1958 0010-3624 2010 
    The use of organic manures as an alternative to chemical fertilizers is an option for the development of sustainable farming systems in Japan. The present study examined the effect of rapeseed oilcake (RO) not only on yield and yield components of rice (Oryza sativa L.) but also on soil fertility parameters and surface water quality in a paddy field by comparing them with the effects of conventional inorganic fertilizer (IF) and a control (CR), that is, natural (unfertilized) system. The long-term field experiment from 1990 to 2006 demonstrated the indigenous sustainability of paddy systems, because husked grain yield and shoot biomass in the CR plot remained at moderate levels (ave. 323 +/- 56 g m-2 and 843 +/- 166 g m-2, respectively) over 17 successive years. Meanwhile, the application of RO comparatively improved grain yield (ave. 538 +/- 83 g m-2) and shoot biomass (ave. 1478 +/- 187 g m-2) to almost the same level as with IF (ave. 538 +/- 68 g m-2 and 1511 +/- 173 g m-2, respectively) during the study period. Soil fertility assessment in the last experimental year (2006) indicated that RO could improve the soil quality to the same extent as IF because major fertility parameters showed similar values between the RO and IF plots. On the other hand, the application of IF induced a substantial increase in estimated load outflows of nitrogen (N) and phosphorus (P) from the paddy surface water (2.46 g N m-2; 0.38 g P m-2) as compared to the CR plot (0.92 g N m-2; 0.06 g P m-2). Outflows from the RO plot showed relatively lesser effluent loads (2.00 g N m-2; 0.14 g P m-2) than the IF plot. From the findings of this study, we concluded that RO is agronomically similar to but an environmentally better resource material than conventional IF in the lowland rice farming system in Japan.
  • Susumu S. Abe; Susumu S. Abe; Carsten W. Mueller; Markus Steffens; Angelika Koelbl; Heike Knicker; Ingrid Koegel-Knabner
    Grassland Science 55 174  1744-6961 2009/08
  • Susumu S. Abe; Sadahiro Yamamoto; Toshiyuki Wakatsuki
    SOIL SCIENCE AND PLANT NUTRITION WILEY-BLACKWELL PUBLISHING, INC 55 (4) 514 - 522 0038-0768 2009/08 
    Termites play a significant role in soil-forming processes of the tropics. The influence of termites on pedogenesis as affected by the toposequence, however, has rarely been explored. We investigated the soil physicochemical and morphological characteristics of epigeal mounds constructed by Macrotermes bellicosus (Smethman) compared with those of surrounding pedons along a toposequence (bottom, fringe and upland sites) of an inland valley in central Nigeria. The physicochemical and morphological properties of the mound soils varied according to structural units but were generally different from those of the adjacent pedons. The differences included finer texture, higher electrical conductivity, total N, exchangeable bases (Ca, Mg and K) and effective cation exchange capacity and lower C/N ratio and exchange acidity in the mound than the pedon at each toposequence position. This tendency to modify the soil properties was more prominent in the nest body where the termites actually live, that is, in the hives, royal cell and base-plate, than in the soils below the nest and the other mound parts, that is, the external wall, internal wall and pillars. We found this trend to a greater or lesser degree at all toposequence positions. Our findings suggest that: (1) M. bellicosus can manipulate the mound soils according to functional applications of structure units or environmental requirements for its livelihood, regardless of local soils; (2) M. bellicosus makes ecological patches (hot spots) at all toposequence positions in the same measure; (3) the influence of M. bellicosus on the pedogenesis is reduced in the lowlands compared with the uplands because the number and volume of the mounds were substantially lower in the bottom and fringe sites compared with the upland site.
  • S. S. Abe; G. O. Oyediran; T. Masunaga; S. Yamamoto; T. Honna; T. Wakatsuki
    PEDOSPHERE SCIENCE PRESS 19 (4) 505 - 514 1002-0160 2009/08 
    The particle-size distribution and mineralogical composition of the clay (< 2 mu m) and fine-sand (0.25-0.10 mm) fractions in soils of two inland valleys in Abakaliki and Bende, Southeast Nigeria, were investigated to provide basic information on soil-forming processes and agricultural potentials. These soils were silty or clayey, deriving from Cretaceous or Tertiary shale materials. The particle-size distribution and its computation on a clay-free basis revealed relatively remarkable lithologic breaks in a couple of pedons. The effect of lithologic discontinuities on soil mineralogical composition was not, however, conspicuous. Petrographic investigation revealed that quartz predominantly comprised the fine-sand fraction in the soils at both study sites. Nevertheless, the clay mineralogical composition of the soils was a mixture of kaolinite, irregularly interstratified smectite-illite intergrades (S/I), hydroxyl-Al interlayered 2:1 type clays (HICs), vermiculite, smectite, halloysite and illite along with fine-sized quartz in Abakaliki. The soils of Bende predominantly contained smectite, which was partially interlayered with hydroxyl-Al and kaolinite. It is suggested that seasonal floodwater has slowed the disintegration of weatherable clay minerals inherited from the shale, while quartz originating from the sandstone is predominant in the fine-sand fraction. Additionally, a possible soil-forming process observed at the both study sites was ferrolysis, which was indicated by a clear decreasing pattern of HICs downward in the soil profiles. The entry of S/I and vertical distribution patterns for a couple of clay minerals in the pedon suggested that the soils in Abakaliki have developed under the significant influence of aeolian dust delivered by the Harmattan. The findings might describe a site-specific deposition pattern of Harmattan dusts as well as hydromorphic soil-forming processes in the wetlands of the inland valleys.
  • Susumu S. Abe; Sadahiro Yamamoto; Toshiyuki Wakatsuki
    JOURNAL OF TROPICAL ECOLOGY CAMBRIDGE UNIV PRESS 25 449 - 452 0266-4674 2009/07
  • ABE Susumu S; MUELLER Carsten W; STEFFENS Markus; KOELBL Angelika; KNICKER Heike; KOEGEL-KNABNER Ingrid
    Grassland science Japanese Society of Grassland Science 55 (2) 104 - 109 1744-6961 2009/06
  • ABE Susumu Shin; YAMAMOTO Sadahiro; MASUNAGA Tsugiyuki; ENDO Tsuneyoshi; WAKATSUKI Toshiyuki; HONNA Toshimasa
    Grassland science Japanese Society of Grassland Science 53 (1) 33 - 38 1744-6961 2007/05
  • Susumu S. Abe; Gbade O. Oyediran; Sadahiro Yamamoto; Tsugiyuki Masunaga; Toshimasa Honna; Toshiyuki Wakatsuki
    SOIL SCIENCE AND PLANT NUTRITION BLACKWELL PUBLISHING 53 (2) 141 - 149 0038-0768 2007/04 
    Inland valleys are a widespread topography in West Africa and have significant potential for agricultural development, especially wet rice cultivation. This study investigated the physicochemical and morphological properties of the soils of two inland valleys in Abakaliki and Bende, Southeast Nigeria, where the soils are derived from shale materials, and discusses their agricultural potential as well as the soil-forming process. Particle size analysis suggested that the soils at both sites were fine-silty, fine-loamy or clayey and, thus, would be able to retain a high amount of water. In contrast, the higher content of clay and silt in the Abakaliki soils would enhance much more water retention than the Bende soils. The soils in Abakaliki, except for some subsoil horizons, generally had acidic reactions, low contents of exchangeable bases (Ca, Mg, K and Na) and high amounts of exchangeable acidity (Al and H) for which leaching effects under high precipitation in the area would be implicated. Bray-1 P values in these soils were generally low under such acidic conditions, while organic C and total N were recorded at relatively high levels, in particular at the surface horizons, reflecting large biomass production under a humid climate. The Bende soils showed similar chemical properties to Abakaliki except for relative accumulation of exchangeable bases throughout the profile on the downslope possibly because of the rolling topography. This result suggested that geological fertilization (i.e. afflux of nutrients released during the soil formation in the upland into the lowland) was more beneficial in Bende than Abakaliki. From the findings of the present study, we concluded that soils in both Abakaliki and Bende had good texture for sawah development (leveled and bounded rice field with an inlet and an outlet for irrigation and drainage), but their poor chemical properties would be constraints for agricultural production.
  • S. ABE Susumu; OYEDIRAN Gbade O; MASUNAGA Tsugiyuki; YAMAMOTO Sadahiro; HONNA Toshimasa; WAKATSUKI Toshiyuki
    Tropical Agriculture and Development Japanese Society for Tropical Agriculture 51 (1) 35 - 39 0021-5260 2007
  • Susumu Shin Abe; Tsugiyuki Masunaga; Sadahiro Yamamoto; Toshimasa Honna; Toshiyuki Wakatsuki
    SOIL SCIENCE AND PLANT NUTRITION BLACKWELL PUBLISHING 52 (4) 479 - 488 0038-0768 2006/08 
    The clay mineralogical composition of 87 topsoil (0-15 cm) samples from inland valleys (IVs) and flood plains (FPs) in seven West African countries, namely Cote d'Ivoire, Ghana, Guinea, Mali, Niger, Nigeria and Sierra Leone, was examined using X-ray diffraction analysis to gain basic information for the development of sustainable lowland agriculture in the region. The results of the present study revealed that the clay fraction (< 2 m) of these samples consisted of 68.4% of 7 angstrom minerals (low-activity clays such as kaolin minerals), 26.6% of 14 angstrom minerals (relatively high-activity clays such as smectite and vermiculite) and 5.1% of 10 angstrom minerals (illite or clay micas) and showed a high variability in the composition. With respect to the soil material classification based on the relative abundance of these three types of minerals, Type 7 (rich in 7 angstrom minerals) accounted for 42.5% of the total samples, while 39.7% of all the samples were Type 7-10 and 7-14 with a predominance of 7 angstrom minerals and with negligible amounts of 10 and/or 14 angstrom minerals, respectively. Type 14-7 accounted for 17.2% of the total samples and was only recorded in Nigeria. The other clay mineral types (i.e. Types 7-10-14, 14, 10, 10-7, 10-14 and 14-10) that were composed mainly of 10 and/or 14 angstrom minerals were hardly found in the West African lowland soils, whereas Types 14 and 7-10-14 were observed in a vertic soil of Southeast Ghana and in northern Ghana, respectively. In contrast, no significant differences in the clay mineralogical composition were found between the IV and FP soils. Geographical distribution of the soil types showed that the soils in the eastern part of West Africa contained more 14 angstrom and 10 angstrom minerals than those in the western part. Although the effect of agro-climatological differences was not conspicuous, soils in the Sahel and Sudan savanna zones showed a higher percentage of 14 angstrom clay minerals than those in the Guinea savanna and equatorial forest zones. The findings were as follows: (1) the low fertility status of the lowland soils in the region was closely associated with their poor mineralogical characteristics (i.e. predominance of 1:1 type clay minerals and a lower amount of 2:1 type clay minerals), (2) no significant differences in the mean clay mineralogical composition were observed between the IV and FP soils, indicating that the lower fertility of the IV soils mainly resulted from the lower clay content, (3) the clay mineralogy of the West African lowland soils was more strongly influenced by the nature of the parent materials than by the climatic conditions and relief.
  • Susumu Shin Abe; Ikuya Hashi; Tsugiyuki Masunaga; Sadahiro Yamamoto; Toshimasa Honna; Toshiyuki Wakatsuki
    Plant Production Science CROP SCIENCE SOCIETY OF JAPAN 9 (4) 457 - 461 1343-943X 2006

MISC

Awards & Honors

  • 2017/09 Japanese Society of Soil Science and Plant Nutrition Distinguished Young Scientist Award
     Pedological Study and On-farm Appraisal of Sawah-based Rice Farming Potential 
    受賞者: ABE Shin

Research Grants & Projects

  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
    Date (from‐to) : 2022/04 -2026/03 
    Author : 傅 凱儀; 甲斐田 きよみ; 玉井 隆; 若狭 幸; 阿部 進
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
    Date (from‐to) : 2018/04 -2022/03 
    Author : Abe Susumu
     
    We examined soil production rates (SPR) in sites with different environmental conditions, to establish the measurement methods of SPR with a focus on the in situ cosmogenic radionuclide (TCN) method and the geochemical mass balance (GMB) method. As a result, we successfully computed SPR in USA, Indonesia, Kyoto and Nara using GMB method. On the other hand, regarding TCN method, although we have developed an effective method of processing samples for the measurement of TCN, we were not able to complete TCN measurement during the project period, due mainly to COVID-19 pandemic. Therefore, we will keep our efforts in this regard in the coming years.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
    Date (from‐to) : 2016/04 -2018/03 
    Author : ABE Susumu; WAKATSUKI Toshiyuki; KAMARUDIN Khairun; UMAMI Irwin
     
    Soil formation rate was estimated in forest watersheds at Mt. Kasuga, Yata Hill and Mt. Ohe which have different parent rocks using the watershed-based mass-balance method. In addition, we could examine the accuracy of this methodology to estimate SFR through the reanalysis of the available data base, although we did not have a plan to do that at the beginning of the project. This allowed us to realize the importance of the analysis of the long-term mass balance data recorded at a long-term ecological monitoring site in Hubbard Brook (USA). So, we could obtain the relevant data but its analysis is still on-going. As a result, although we could only partially confirmed the reliability and applicability of the watershed-based mass balance method to estimate the soil formation rate. We are expecting that these findings will give new insights to the future study.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
    Date (from‐to) : 2015/04 -2018/03 
    Author : Yanai Junta
     
    To investigate long-term trend of fertility status of paddy soils in tropical Asia after the “Green Revolution”, soil samples were collected from almost same locations of the previous research about 50 years ago in Thailand, Philippines, Malaysia and Bangladesh, and their fertility-related properties were analyzed. Considerable increase in available phosphorus was observed in all the countries and the changes in pH and organic matter content was not conspicuous. Significant decrease in total potassium was observed in Thailand. As a consequence, it was concluded that fertility status of paddy soils in tropical Asia has increased in general during the past 50 years but soil nutrients whose removal is accelerated due to higher yield of rice should be replenished appropriately to keep rice production in tropical Asia sustainable.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
    Date (from‐to) : 2013/04 -2017/03 
    Author : Wakatsuki Toshiyuki; Mohammed Moro BURI; Joseph OFORI; Segun Y. ADEMILUYI; Sunday E. OBALUM; CI ALARIMA; J Nwite; IWASHIMA Noriko
     
    Although the core technologies of Asian Green Revolution (GR) were modern agricultural technologies, like fertilizer/pesticides, irrigation/drainage, and especially high yielding variety (HYV), GR of Sub-Saharan African (SSA) cannot be realized by such technologies only. The success of the Asian GR was based on the irrigated sawah systems developed by farmers using 100-1000 years before modern science and technology. Although Norfolk four-course rotation technology was core for the British Agricultural revolution in 18th century, long continued enclosure movement during 15th to 18th centuries had prepared farmers’ institutional land condition to accept the technology and made possible technology evolution. In order to realize GR, SSA farmers need irrigated sawah system (Sawah Hypothesis 1), which can be realized by Sawah technology in diverse lowland agro-ecologies, such as inland valleys, flood plains and inland deltas.
  • Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
    Date (from‐to) : 2014/04 -2016/03 
    Author : ABE Susumu
     
    First of all, the present study reviewed the literature on mineral weathering by soil fauna to highlight the current status and future challenges in this study topic. Then, the study compared clay mineral composition between termite mound soils with reference soils and found that it was too little change in mineral composition to detect the effect of termite on soil minerals. On the other hand, it is revealed that the mound-building activity of termite play a significant role in dynamics of soil oxyhydroxides of iron, aluminum and manganese in highly weathered tropical soils. In addition, the present study found that the land use and management affected soil faunal community and amorphous mineral content in volcanic soils of Indonesia.

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