干旱区生态环境知识资源中心(Arid): 黑河中游不同土地利用方式地面节肢动物对土壤盐渍化的响应

Arid

	黑河中游不同土地利用方式地面节肢动物对土壤盐渍化的响应
其他题名	RESPONSES OF GROUND ARTHROPODS TO SOIL SALINIZATION IN LANDS DIFFERENT IN LAND-USE/COVER TYPE IN THE MIDDLE REACHES OF HEIHE RIVER
	刘继亮; 李锋瑞; 牛瑞雪; 刘七军; 秦彧; 刘长安
来源期刊	土壤学报
ISSN	0564-3929
出版年	2011
卷号	48 期号:6 页码:1242-1252
中文摘要	在甘肃河西走廊黑河中游荒漠绿洲过渡区，天然沙质草地被相继转变为农田和防风固沙人工林，但目前尚缺乏不同土地利用/管理方式下地面节肢动物群落对土壤盐渍化响应的系统研究。以天然沙质草地转变的人工梭梭灌木林、人工杨树林、人工樟子松林和农田为研究对象，以天然草地为对照，基于5种研究样地表层土壤盐分及其组成和地面节肢动物群落的观测数据，采用RDA(Redundancyanalysis)排序分析等方法，研究了不同土地利用/管理方式下地面节肢动物个体数量和类群丰富度对土壤盐分环境变化的响应机制。主要结果为：（1）土地利用变化与管理措施相互作用驱动了地面节肢动物群落的演变过程，天然草地植被转变为人工林和农田20多年后，显著降低了地面节肢动物群落的数量而对类群丰富度无显著影响。（2）地面节肢动物群落的变化受土壤pH、Na~+、Mg~(2+)、Cl~-离子的共同影响，其中土壤pH、Na~+和Mg~(2+)离子对动物群落变化的贡献率最大，是关键生态因子。（3）动物个体数量随土壤pH的增加而增加，随Mg~(2+)、Cl~-离子浓度的增加而下降。研究表明，土地利用变化引起的土壤盐分环境改变是驱动地面节肢动物群落演变的重要因素之一。
英文摘要	For decades，a large area of natural desert grasslands in the middle reaches of the Heihe River in Hexi Corridor of Northwest China has been converted tract by tract into farmland and plantation.However，few researchers have addressed responses of ground arthropod communities to soil salinization in lands different in land-use and management.In this study，five major types of land use 21-year-old planted shrubland without irrigation and fertilization，28-year-old irrigated Poplar plantation and 33- year-old irrigated Pinus plantation，27-year-old farmland with irrigation and fertilization，and natural desert grassland were selected for comparison with the last one as control.All the sampling plots，except the last used to be natural desert grassland.Soil salinity and its composition in the surface layer and ground arthropod communities in the plots were observed.Based on the observations，redundancy analysis (RDA) and multiple regression analysis were performed to determine relationships between the distribution of the arthropod community and soil salinization variables.The one-way analysis of variance demonstrated that the conversion of natural grassland to planted shrubland， Polar plantation， Pinus plantation and farmland significantly reduced abundance of the ground arthropod community，but little affected species richness of the arthropod community.Results of RDA show that soil salinization properties had significant and differential effects on abundance and species richness of the arthropod community.The key factors affecting composition of the ground arthropod community were soil pH，Na~+,Mg~(2+), Cl~- and SO~2- _4 concentrations in the topsoil layer.Abundance of the ground arthropods increased with increasing soil pH and decreased with increasing Mg~(2+) and Cl~- concentrations.The findings suggest that change in soil salinity environment caused by changes in land-use and management is one of the key variables driving evolution of the ground arthropod community.
中文关键词	黑河流域 ; 土地利用变化 ; 管理扰动 ; 土壤盐渍化 ; 地面节肢动物 ; 多变量分析
英文关键词	Heihe River Basin Land-use change Management disturbance Soil salinization Ground arthropods Multivariate analysis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4403248
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227190
作者单位	中国科学院寒区旱区环境与工程研究所生态与农业研究室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	刘继亮,李锋瑞,牛瑞雪,等. 黑河中游不同土地利用方式地面节肢动物对土壤盐渍化的响应[J]. 中国科学院西北生态环境资源研究院,2011,48(6):1242-1252.
APA	刘继亮,李锋瑞,牛瑞雪,刘七军,秦彧,&刘长安.(2011).黑河中游不同土地利用方式地面节肢动物对土壤盐渍化的响应.土壤学报,48(6),1242-1252.
MLA	刘继亮,et al."黑河中游不同土地利用方式地面节肢动物对土壤盐渍化的响应".土壤学报 48.6(2011):1242-1252.