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Subsurface organic ameliorant plus polyethylene mulching strengthened soil organic carbon by altering saline soil aggregate structure and regulating the fungal community

文献类型：期刊论文

作者Zhang, Hongyuan2; Pang, Huancheng2; Song, Jiashen2; Chang, Fangdi2; Wang, Jing2; Wang, Xiquan2; Zhang, Yitao1; Peixoto, Leanne3; Li, Yuyi2
刊名LAND DEGRADATION & DEVELOPMENT
出版日期2022-05-23
页码11
关键词microbial community polyethylene mulching saline soil organic carbon soil structure subsurface organic ameliorant
ISSN号1085-3278
DOI10.1002/ldr.4330
通讯作者Li, Yuyi(liyuyi@caas.cn)
英文摘要Subsurface organic ameliorant plus polyethylene mulching is a novel strategy for saline soil improvement and utilization in China. However, little is known about how this strategy impacts soil organic carbon (SOC) both directly (carbon input) and indirectly (soil aggregates protection and microbial regulation). Therefore, a field experiment was arranged and sampled after 3 years, including four treatments, i.e., no ameliorant with and without polyethylene mulching, and subsurface (10-30 cm soil depth) organic ameliorant with and without polyethylene mulching. Subsurface organic ameliorant raised the SOC content in the 0-40 cm by 70% and 90% with and without mulching, respectively. Subsurface organic ameliorant converted the major aggregation size from <0.053 to 0.25-2 mm, indicating that both direct carbon (C) input and indirect soil aggregates protection contributed to the increase in SOC content. In contrast, polyethylene mulching reduced the SOC content by 16% and 6% with and without organic ameliorant respectively. This was due to lower fungal diversity by 9%-14% and supported by the positive effect from fungal diversity to SOC. Further, the subsurface organic ameliorant plus polyethylene mulching increased SOC by 61% through direct C input, indirect soil aggregates protection and microbial regulation. Meanwhile, the contribution of physical protection standardized total effect (STE) = 0.223-0.294] was higher than microbial regulation (STE = 0.040-0.162) according to a structural equation model. Consequently, subsurface organic ameliorant plus polyethylene mulching represents a feasible agricultural practice to increase the SOC content for saline soil amelioration.
WOS关键词MICROBIAL COMMUNITIES ; FRACTIONS ; ROTATION ; BACTERIA ; TILLAGE ; YIELD
资助项目National Natural Science Foundation of China[31871584] ; National Natural Science Foundation of China[32101852] ; National Key Research and Development Program of China[2016YFC0501302] ; Agricultural Science and Technology Innovation Program[CAAS-ZDRW202201] ; Fundamental Research Funds for Central Non-profit Scientific Institution[1610132020011]
WOS研究方向Environmental Sciences & Ecology ; Agriculture
语种英语
WOS记录号WOS:000798938400001
出版者WILEY
资助机构National Natural Science Foundation of China ; National Key Research and Development Program of China ; Agricultural Science and Technology Innovation Program ; Fundamental Research Funds for Central Non-profit Scientific Institution
源URL[http://ir.igsnrr.ac.cn/handle/311030/177624]  
专题中国科学院地理科学与资源研究所
通讯作者Li, Yuyi
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China
2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China
3.Aarhus Univ, Dept Agroecol, Tjele, Denmark
推荐引用方式
GB/T 7714		 Zhang, Hongyuan,Pang, Huancheng,Song, Jiashen,et al. Subsurface organic ameliorant plus polyethylene mulching strengthened soil organic carbon by altering saline soil aggregate structure and regulating the fungal community[J]. LAND DEGRADATION & DEVELOPMENT,2022:11.
APA Zhang, Hongyuan.,Pang, Huancheng.,Song, Jiashen.,Chang, Fangdi.,Wang, Jing.,...&Li, Yuyi.(2022).Subsurface organic ameliorant plus polyethylene mulching strengthened soil organic carbon by altering saline soil aggregate structure and regulating the fungal community.LAND DEGRADATION & DEVELOPMENT,11.
MLA Zhang, Hongyuan,et al."Subsurface organic ameliorant plus polyethylene mulching strengthened soil organic carbon by altering saline soil aggregate structure and regulating the fungal community".LAND DEGRADATION & DEVELOPMENT (2022):11.

入库方式： OAI收割

来源：地理科学与资源研究所

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