Effect of land use on soil nematode community composition and co-occurrence network relationship

扫码查看

原文链接

国家科技期刊平台
NETL
NSTL
万方数据

外文摘要：Land use influences soil biota community composition and diversity,and then belowground ecosystem processes and functions.To characterize the effect of land use on soil biota,soil nematode communities in crop land,forest land and fallow land were investigated in six regions of northern China.Generic richness,diversity,abundance and biomass of soil nematodes was the lowest in crop land.The richness and diversity of soil nematodes were 28.8 and 15.1％higher in fallow land than in crop land,respectively.No significant differences in soil nematode indices were found between forest land and fallow land,but their network keystone genera composition was different.Among the keystone genera,50％of forest land genera were omnivores-predators and 36％of fallow land genera were bacterivores.The proportion of fungivores in forest land was 20.8％lower than in fallow land.The network complexity and the stability were lower in crop land than forest land and fallow land.Soil pH,NH4+-N and NO3--N were the major factors influencing the soil nematode community in crop land while soil organic carbon and moisture were the major factors in forest land.Soil nematode communities in crop land influenced by artificial management practices were more dependent on the soil environment than communities in forest land and fallow land.Land use induced soil environment variation and altered network relationships by influencing trophic group proportions among keystone nematode genera.

外文关键词：

soil nematodetrophic groupscommunity compositionco-occurrence networkland use

作者：

Xiaotong Liu、Siwei Liang、Yijia Tian、Xiao Wang、Wenju Liang、Xiaoke Zhang

展开 >

作者单位：

Institute of Applied Ecology.Chinese Academy of Sciences,Shenyang 110016,China

University of Chinese Academy of Sciences,Beijing 100049,China

Tillage and Cultivation Research Institute,Liaoning Academy of Agricultural Sciences,Shenyang 110161,China

Key Lab of Conservation Tillage and Ecological Agriculture in Liaoning Province,Shenyang 110016,China

展开 >

基金：

National Natural Science Foundation of ChinaNational Key Research and Development Plan of ChinaNational Science and Technology Fundamental Resources Investigation Program of ChinaStrategic Priority Research Program of the Chinese Academy of SciencesLiaoning Province Applied Basic Research Plan Program,ChinaShenyang Science and Technology Plan Program,ChinaLiaoning Outstanding Innovation Team,China

项目编号：

U22A205012022YFD15006012018FY100304XDA280902002022JH2/10130018421-109-3-05XLYC2008015

出版年：

2024

DOI：

10.1016/j.jia.2023.11.019

农业科学学报(英文)

中国农业科学院农业信息研究所

农业科学学报(英文)

CSTPCD

影响因子：0.576

ISSN：2095-3119

年,卷(期)：2024.43(8)