Responses of Soil Micro-Food Web to Land Use Change from Upland to Paddy Fields with Different Years of Rice Cultivation

IMR OpenIR

	Responses of Soil Micro-Food Web to Land Use Change from Upland to Paddy Fields with Different Years of Rice Cultivation
其他题名	Responses of Soil Micro-Food Web to Land Use Change from Upland to Paddy Fields with Different Years of Rice Cultivation
	Lu Ying 1; Bai Wei 3; Wang Xuefeng 1; Cai Qian 3; Liang Wenju 1
	2017
发表期刊	PEDOSPHERE
ISSN	1002-0160
卷号	27 期号:1 页码:155-164
摘要	Land use changes affect belowground ecosystems. During the past few decades, land use in Northeast China has changed considerably, and the area of paddy fields has increased rapidly from upland. In this study, soil characteristics and soil biotic community in paddy fields with different years of rice cultivation were measured to examine the effects of land use change from upland to paddy fields on soil micro-food web. The upland maize fields were selected as control and the microbial community composition was characterized using phospholipid fatty acids (PLFAs) analysis. The microbial biomass (total PLFA), bacteria biomass, and fungi biomass were higher in the 20-40-year (late-stage) than 1-10-year (early-stage) paddy fields. The abundances of total nematodes and bacterivores were lower in the early-stage than late-stage paddy fields. The abundance of herbivores was the highest in the early-stage paddy fields but that of omnivore-predators was the highest in the late-stage paddy fields. Structural equation model indicated that soil food web was developed and structured after 20 years of paddy cultivation. Our results suggested that soil micro-food web may be a good indicator for soil development and stabilization of paddy fields following land use change.
其他摘要	Land use changes affect belowground ecosystems. During the past few decades, land use in Northeast China has changed considerably, and the area of paddy fields has increased rapidly from upland. In this study, soil characteristics and soil biotic community in paddy fields with different years of rice cultivation were measured to examine the effects of land use change from upland to paddy fields on soil micro-food web. The upland maize fields were selected as control and the microbial community composition was characterized using phospholipid fatty acids (PLFAs) analysis. The microbial biomass (total PLFA), bacteria biomass, and fungi biomass were higher in the 20-40-year (late-stage) than 1-10-year (early-stage) paddy fields. The abundances of total nematodes and bacterivores were lower in the early-stage than late-stage paddy fields. The abundance of herbivores was the highest in the early-stage paddy fields but that of omnivore-predators was the highest in the late-stage paddy fields. Structural equation model indicated that soil food web was developed and structured after 20 years of paddy cultivation. Our results suggested that soil micro-food web may be a good indicator for soil development and stabilization of paddy fields following land use change.
关键词	COMMUNITY STRUCTURE FEEDING-BEHAVIOR CARBON BIOMASS DIVERSITY NEMATODES DYNAMICS belowground ecosystem microbial community composition phospholipid fatty acids soil nematodes structural equation model
收录类别	CSCD
语种	英语
资助项目	[National Key Research & Development (R&D) Plan of China] ; [National Basic Research Program (973 Program) of China]
CSCD记录号	CSCD:5909567
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/153535
专题	中国科学院金属研究所
作者单位	1.中国科学院 2.中国科学院大学 3.中国科学院金属研究所
推荐引用方式 GB/T 7714	Lu Ying,Bai Wei,Wang Xuefeng,et al. Responses of Soil Micro-Food Web to Land Use Change from Upland to Paddy Fields with Different Years of Rice Cultivation[J]. PEDOSPHERE,2017,27(1):155-164.
APA	Lu Ying,Bai Wei,Wang Xuefeng,Cai Qian,&Liang Wenju.(2017).Responses of Soil Micro-Food Web to Land Use Change from Upland to Paddy Fields with Different Years of Rice Cultivation.PEDOSPHERE,27(1),155-164.
MLA	Lu Ying,et al."Responses of Soil Micro-Food Web to Land Use Change from Upland to Paddy Fields with Different Years of Rice Cultivation".PEDOSPHERE 27.1(2017):155-164.