A rice variety with a high straw biomass retained nitrogen and phosphorus without affecting soil bacterial species
作者机构：College of Environmental and Resource SciencesZhejiang UniversityHangzhou 310058China College of Life Information Science and Instrument EngineeringHangzhou Dianzi UniversityHangzhou 310018China Department of Life and Environmental ScienceHangzhou Normal UniversityHangzhou 310036China Plant Pathology DepartmentInstitute for Sustainable Food Systemsand Emerging Pathogens InstituteUniversity of FloridaGainesvilleFL 32611USA
出 版 物：《Soil Ecology Letters》 (土壤生态学快报（英文）)
年 卷 期：2020年第2卷第2期
页 面：131-144页
学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0818[工学-地质资源与地质工程] 09[农学] 0903[农学-农业资源与环境] 0901[农学-作物学] 0713[理学-生态学]
基 金：the National Key Research and Development Program of China(2017YFD0800103) Natural Science Foundation of Zhejiang Province(LR16B070001) the National Natural Science Foundation of China(41522108)
主 题：Agricultural wetland Network analysis Nutrient Rice variety Soil bacterial communities
摘 要：It is well documented that rice paddy fields act as agricultural wetlands that remove or retain nutrients;however,their associated effects on soil microbial communities are rarely *** present study evaluates the impact of rice variety on nutrient removal via plant uptake,nutrient retention in the soil,and bacterial associations in rice paddy fields,using a network analysis that compares the soil bacterial communities of two rice *** found that the high-straw rice variety(YD-1)allows uptake of a high amount of nitrogen(N)and phosphorus(P)from paddy rice fields via harvesting,but causes less residual total N and P to remain in the ***,both rice varieties(YD-1 and XS-134(Xiushui-134))had non-significant effects on the dominant bacterial *** short-term response of bacterial community diversity to rice variety is found to be mainly due to less frequently recovered species.A network analysis that incorporates soil nutrients as nodes,along with bacterial taxa,found that only one node representing the total P related to the non-dominant species had an indirect association with the rice straw *** observed short-term impact of the two rice varieties(XS-134 and YD-1)on soil bacterial diversity and nutrient surplus in these agricultural wetlands is limited under a high level of fertilization.
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