生态学报2018，Vol.38Issue(4)：1357-1365,9.DOI:10.5846/stxb201701030006
人工固沙植被恢复对地表节肢动物群落组成及多样性的影响
Effects of introduced sand-fixing vegetation on community structure and diversity in ground-dwelling arthropods
摘要
Abstract
Sand-fixing vegetation introduced at the edges of oases strongly affects eco-hydrological processes in arid areas,structuring both above-and belowground biodiversity.However,most of research in this area focuses on the response of vegetation to afforestation in arid ecosystems,and little research has been conducted on soil fauna communities.We studied desert habitat in which Haloxylon ammodendron (HAP) and Tamarix ramosissima (TRP) had been planted in the desertoasis ecotone and nearby natural desert (ND) at a location near the Zhangye Oasis,and we assessed the composition and diversity of ground-dwelling arthropod communities using pitfall trapping in early May and mid-August.The primary findings of our study are as follows.We found that when sand-fixing vegetation was introduced to the natural desert area,ground-dwelling arthropod abundance decreased,whereas taxa richness and Shannon diversity index increased,particularly in May.Furthermore,the abundance,taxa richness,and Shannon diversity index were significantly higher in communities to which HAP was introduced than in communities to which TRP was introduced.Introduced sand-fixing vegetation caused the activity density of tenebrionid beetles to decrease substantially,whereas the activity density of ants,carabid beetles,and some spiders increased significantly,all of which determine ground-dwelling arthropod assemblages in this ecosystem.We also identified indicator taxa among ground-dwelling arthropods for each type of desert habitat.Tenebrionid beetles function as indicator taxa in ND habitats;members of Trachelipidae function as indicator taxa in HAP habitats;and members of Labiduridae and Lycosidae function as indicator taxa in TRP habitats.In summary,sand-fixing vegetation introduced to sandy desert ecosystems promoted the diversity of ground-dwelling arthropods by providing food sources and habitats,but caused the abundance of certain native taxa to decrease,sometimes to zero.关键词
固沙植被群落/地表节肢动物/群落结构/多样性/指示种Key words
sand-fixing vegetation/ground-dwelling arthropods/community structure/diversity/indicator species引用本文复制引用
刘继亮,赵文智,李锋瑞,潘成臣..人工固沙植被恢复对地表节肢动物群落组成及多样性的影响[J].生态学报,2018,38(4):1357-1365,9.基金项目
国家重点基础研究发展计划项目(2013CB429903) （2013CB429903）
国家自然科学基金项目(41771290,41201248,41471210,31400392) （41771290,41201248,41471210,31400392）
中科院西部之光博士项目 （）
