干旱区生态环境知识资源中心(Arid): 干旱区不同年龄灌丛斑块地面节肢动物的聚集效应

Arid

	干旱区不同年龄灌丛斑块地面节肢动物的聚集效应
其他题名	Assemblage effect of ground arthropod community in desert steppe shrubs with different ages
	刘任涛; 朱凡; 柴永青
来源期刊	应用生态学报
ISSN	1001-9332
出版年	2014
卷号	25 期号:1 页码:228-236
中文摘要	以荒漠草原区6、15、24、36年生柠条灌丛为研究对象,调查了不同林龄灌丛内外土壤性质和地面节肢动物群落特征,分析了干旱区灌丛斑块生境中地面节肢动物群落随灌木林发育的变化特征. 结果表明: 1) 6年生林地只对土壤物理性质(土壤质地、含水量、pH 和电导率)产生显著影响,从15年开始林地土壤有机质和养分(N、P)显著增加. 2)在研究样地共捕获27个节肢动物类群,步甲科、拟步甲科和蚁科是优势类群. 从6到15年生林地,地面节肢动物优势类群数减少,常见类群数增加. 从15年生经24年生到36年生林地,灌丛内外类群组成差异先缩小后变大. 36年生林地某些特殊的动物类群开始大量出现,如蜣螂在36年生林地灌丛中成为优势类群. 3) 6和24年生林地灌丛内外地面节肢动物群落结构差别较小,15和6年生林地灌丛内外地面节肢动物群落结构差异显著. 4)林龄对灌丛内地面节肢动物的分布影响较大,而对灌丛外地面节肢动物的分布影响较小. 灌丛发育过程通过对灌丛下微生境的改变如土壤质地、电导率、pH 等来显著影响地面节肢动物的分布,并对灌丛外样地产生一定的辐射作用. 干旱区灌丛发育过程对地面节肢动物聚集效应产生显著影响,在不同林龄阶段这种聚集效应表现不一,直接影响沙化草地生态系统的恢复过程.
英文摘要	Taking the 6-,15-,24-and 36-year-old Caragana intermedia shrubs in desert steppe as a subject,an investigation on soil properties and ground arthropod community was carried out under the shrub and in the open to probe into the assemblage effect of ground arthropod community in desert steppe shrubs with different ages. The results were as follows: 1) In the 6-year-old shrubland, significant differences were only found in soil physical properties (soil texture,soil moisture and electrical conductivity) between the microhabitats under shrub and in the open. Beginning from the 15-year-old shrubland,however,soil organic matter and nutrition (N,P) increased significantly. 2) A total of 27 groups were captured in the studied sites which dominated by Carabidae,Tenebrionidae and Formicidae. From 6- to 15-year-old shrubland,the number of dominant groups decreased while that of common groups increased for the ground arthropod community under the shrub. From 15-to 24-and 36-year-old shrubland,the difference between the microhabitats under the shrub and in the open decreased firstly,and then increased. Some special groups appeared under the shrub in the 36-year-old shrubland,and dung beetles became dominant. 3) In the 6-and 24-year-old shrublands,there were no significant differences in group richness,abundance,and diversity index between the microhabitats under the shrub and in the open. As for the 15- and 36-year-old shrublands,however,significant differences were observed. 4) The shrub age had a stronger effect on the distribution of ground arthropods living under the shrubs compared to that in the open. The changes in soil texture,pH and electrical conductivity could significantly influence on the distribution of ground arthropods under the shrub,also in the open to some degree. It was suggested that the development of shrubland had strong impact on assemblage effect of ground arthropods, which was closely correlated with the stand age and would affect the recovery of sandy grassland ecosystems.
中文关键词	荒漠草原 ; 灌丛 ; 地面节肢动物 ; 聚集效应 ; 林龄
英文关键词	desert steppe shrubland ground arthropod assemblage effect stand age
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:5042519
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231978
作者单位	宁夏大学, 西北退化生态系统恢复与重建教育部重点实验室, 银川, 宁夏 750021, 中国
推荐引用方式 GB/T 7714	刘任涛,朱凡,柴永青. 干旱区不同年龄灌丛斑块地面节肢动物的聚集效应[J]. 宁夏大学,2014,25(1):228-236.
APA	刘任涛,朱凡,&柴永青.(2014).干旱区不同年龄灌丛斑块地面节肢动物的聚集效应.应用生态学报,25(1),228-236.
MLA	刘任涛,et al."干旱区不同年龄灌丛斑块地面节肢动物的聚集效应".应用生态学报 25.1(2014):228-236.