Kota Hamada, Toshiyuki Ohtsuka, N. Fujitake, T. Miyajima, Yusuke Yokoyama, Y. Miyairi, Morimaru Kida
{"title":"Functional organic matter components in mangrove soils revealed by density fractionation","authors":"Kota Hamada, Toshiyuki Ohtsuka, N. Fujitake, T. Miyajima, Yusuke Yokoyama, Y. Miyairi, Morimaru Kida","doi":"10.1080/00380768.2024.2304761","DOIUrl":"https://doi.org/10.1080/00380768.2024.2304761","url":null,"abstract":"25 The mechanisms underlying stabilization of soil organic matter (SOM) in coastal 26 ecosystems, including mangrove forests, are poorly understood, limiting our ability to predict the 27 consequences of disturbances. Here, we introduce density fractionation to mangrove soils to 28 identify the distribution and properties of the functional components of SOM with regard to 29 degradation state, stability, and origin, namely, the high-density fraction (HF), free low-density 30 fraction (f-LF), and mineral-associated LF (m-LF). Three soil cores (1 m) were collected in a 31 mangrove forest on Ishigaki Island, Japan and cut into 10 cm intervals and analyzed. The massive 32 production of mangrove fine roots resulted in a high abundance of LFs throughout the cores, 33 which markedly differed from terrestrial soils. Relative abundance of LFs together accounted for 34 38%–66% of total soil C. The m-LF was as abundant as f-LF and 1.6 times higher in relative 35 abundance than the global average of terrestrial soils. The C/N ratios and δ 13 C values clearly 36 increased with depth in all fractions, which was attributed to the increased contribution from roots. 37 We found a consistent pattern in Δ 14 C values of density fractions. HF was the oldest with Δ 14 C 38 between -149‰ and -97‰ followed by m-LF (between -130‰ and -87‰) and then f-LF 39 (between -89‰ and 78‰), suggesting that mineral association may be pivotal in long-term carbon 40 storage in the mangrove mineral soil. Our analysis successfully identified meaningful functional 41 components of mangrove SOM, yet several questions remained unanswered, including large","PeriodicalId":21852,"journal":{"name":"Soil Science and Plant Nutrition","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139602533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Methane and nitrous oxide emissions from agricultural fields in Japan and mitigation options: a review","authors":"H. Akiyama","doi":"10.1080/00380768.2023.2298782","DOIUrl":"https://doi.org/10.1080/00380768.2023.2298782","url":null,"abstract":"","PeriodicalId":21852,"journal":{"name":"Soil Science and Plant Nutrition","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139386708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Pramono, T. A. Adriany, N. Al Viandari, H. L. Susilawati, A. Wihardjaka, Mas Teddy Sutriadi, Wahida Annisa Yusuf, Miranti Ariani, Rota Wagai, T. Tokida, Kazunori Minamikawa
{"title":"Higher rice yield and lower greenhouse gas emissions with cattle manure amendment is achieved by alternate wetting and drying","authors":"A. Pramono, T. A. Adriany, N. Al Viandari, H. L. Susilawati, A. Wihardjaka, Mas Teddy Sutriadi, Wahida Annisa Yusuf, Miranti Ariani, Rota Wagai, T. Tokida, Kazunori Minamikawa","doi":"10.1080/00380768.2023.2298775","DOIUrl":"https://doi.org/10.1080/00380768.2023.2298775","url":null,"abstract":"","PeriodicalId":21852,"journal":{"name":"Soil Science and Plant Nutrition","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139129037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Interactive influence of particle size and carbonization temperature on Silicon availability in Rice husk biochar","authors":"John Seye Olanrewaju, Kuniaki Sato, T. Masunaga","doi":"10.1080/00380768.2023.2288034","DOIUrl":"https://doi.org/10.1080/00380768.2023.2288034","url":null,"abstract":"ABSTRACT This study examined the influence of rice husk (RH) particle size, carbonization temperature, and their interaction on the availability of Silicon (Si) in RH biochar obtained from the carbonization of different particle sizes of RH (≤1 mm, >1 mm, and the original size, i.e., the unmodified RH biomass (O_RH)) at varying carbonization temperatures from 300 to 700°C. Silicon content in the biochar was extracted with 0.01 M CaCl2. Results showed that the influence of RH particle size on available Si is modified by temperature. The maximum available Si from the RH biochar were 2145 mg kg−1 at 700°C for O_RH, 2428 mg kg−1 at 600°C for > 1 mm RH and 2562 mg kg−1 at 500°C for ≤ 1 mm RH. These were an increase of 171%, 207% and 224% respectively, compared to the uncarbonized original rice husk (790 mg kg −1). Smaller particle sizes attained the maximum values of available silicon at lower temperatures compared with the original RH probably due to the efficient heat transfer to the smaller RH particle surface because of the smaller packing/void volume between the particles. Thus, the carbonization of smaller particles of RH will produce higher available Si content at a lower carbonization temperature than that required to achieve the same effect in the original RH biomass, thereby saving energy and time.","PeriodicalId":21852,"journal":{"name":"Soil Science and Plant Nutrition","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139232332","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Hiradate, Masahiko Katoh, Shuji Sano, Shigeto Sudo, S. Sugihara, Yo Toma
{"title":"Preface to the special section on “past, present, and future biochar utilization for soil sustainability from Asian agronomical and ecological perspectives”","authors":"S. Hiradate, Masahiko Katoh, Shuji Sano, Shigeto Sudo, S. Sugihara, Yo Toma","doi":"10.1080/00380768.2023.2288473","DOIUrl":"https://doi.org/10.1080/00380768.2023.2288473","url":null,"abstract":"","PeriodicalId":21852,"journal":{"name":"Soil Science and Plant Nutrition","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139235520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Shoot and root responses to low phosphorus and their genotypic variability in selected cultivars of Japanese core collections of maize and soybean","authors":"Chathuri Lankani Samarasekara Muhandiram Karunarathne, Mayumi Kikuta, Toshinori Nagaoka","doi":"10.1080/00380768.2023.2283487","DOIUrl":"https://doi.org/10.1080/00380768.2023.2283487","url":null,"abstract":"","PeriodicalId":21852,"journal":{"name":"Soil Science and Plant Nutrition","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139240902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Understanding yield-limiting factors for sorghum in semi-arid sub-Saharan Africa: beyond soil nutrient deficiency","authors":"K. Ikazaki, F. Nagumo, S. Simporé, A. Barro","doi":"10.1080/00380768.2023.2279582","DOIUrl":"https://doi.org/10.1080/00380768.2023.2279582","url":null,"abstract":"","PeriodicalId":21852,"journal":{"name":"Soil Science and Plant Nutrition","volume":null,"pages":null},"PeriodicalIF":2.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139277093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}