干旱区生态环境知识资源中心(Arid): 黑河中游荒漠地面节肢动物分布特征

Arid

	黑河中游荒漠地面节肢动物分布特征
其他题名	Distribution of Ground Arthropod Community in Arid Desert in the Middle Reaches of Heihe River
	刘继亮; 赵文智; 李锋瑞
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2015
卷号	32 期号:6 页码:1192-1200
中文摘要	采用陷阱法,对黑河中游绿洲边缘和外围3种荒漠生境地面节肢动物群落进行了系统调查,并利用per- MANOVA、NMDS和RDA等排序方法,定量分析了3种荒漠类型地面节肢动物群落分布特征及其与环境因子的关系。主要结果如下: ① 砾质荒漠与沙质荒漠地面节肢动物群落明显不同(P < 0.001),沙质荒漠地面节肢动物群落活动密度、类群丰富度和优势度指数显著高于砾质荒漠,而多样性和均匀度指数变化相反; ② 地面节肢动物群落中,捕食性类群与腐食性+杂食性类群的比值变化,反映了荒漠地面节肢动物群落中捕食者的捕食强度随着干旱程度的增加而增加; ③ 确定了影响荒漠地面节肢动物群落分布的关键环境因子是草本盖度(相对贡献率62%) 、土壤黏粉粒(相对贡献率18%)和容重(相对贡献率11%),3个环境因子解释了91%的动物群落变异。
英文摘要	Ground arthropod is one of the important components of arid desert ecosystems and plays a key role in maintaining ecosystem structure and functioning. Up to now,relatively fewer studies have explored the distribution of ground arthropod community composition and diversity of arid desert ecosystems,especially on oasis peripheral area in the Heihe River basin,NW China. We used sandy desert located the edge and outside of oasis and Gobi desert located in the outside of oasis of the Heihe basin as a study system,and investigated the composition and diversity of ground arthropod communities using pitfall trapping method in the early May,mid-July and mid-September. Main findings of our study are as follows. ① There was a significant difference (P < 0.001) on ground arthropod community by analysis of perMANOVA (Permutation based MANOVA) and NMDS (Non-metric multidimensional scaling) between the sandy and Gobi desert. The activity density,group richness and domain index of ground arthropod community in the Sandy desert ecosystem were higher significantly than that in the Gobi desert ecosystems,and an inverse pattern was observed on diversity index and evenness index of ground arthropod community. ② The ratio of predator with detritivore + ominivore of ground arthropod community from the sandy desert to Gobi desert reflect predator prey in the arthropod community strength increases along with the drought degree of desert. ③ RDA (redundancy analysis) and partial RDA demonstrated that key environmental factors affecting ground arthropod distribution were grass cover (relative contribution rate of 62%),silt and clay content (relative contribution rate of 18%) and soil bulk density (relative contribution rate of 11%),and the above three factors explained 91% of variation on the ground arthropod community.
中文关键词	砾质荒漠 ; 沙质荒漠 ; 地面节肢动物 ; 群落 ; 分布 ; 环境因子 ; 黑河中游
英文关键词	gravelly desert sandy desert ground arthropods community distribution environmental factors middle reaches of Heihe River
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ZOOLOGY
WOS研究方向	Zoology
CSCD记录号	CSCD:5573051
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/2XILL650/232759
作者单位	中国科学院寒区旱区环境与工程研究所,临泽内陆河流域研究站, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	刘继亮,赵文智,李锋瑞. 黑河中游荒漠地面节肢动物分布特征[J]. 中国科学院西北生态环境资源研究院,2015,32(6):1192-1200.
APA	刘继亮,赵文智,&李锋瑞.(2015).黑河中游荒漠地面节肢动物分布特征.干旱区研究,32(6),1192-1200.
MLA	刘继亮,et al."黑河中游荒漠地面节肢动物分布特征".干旱区研究 32.6(2015):1192-1200.