干旱区生态环境知识资源中心(Arid): 土壤动物群落对沙化高寒草地生态恢复的响应

Arid

	土壤动物群落对沙化高寒草地生态恢复的响应
其他题名	Responses of soil fauna to ecological restoration of desertified alpine grasslands
	马金豪; 吴鹏飞
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2018
卷号	37 期号:12 页码:3566-3575
中文摘要	为了查明沙化高寒草地生态恢复过程中土壤动物群落的变化趋势,2015年9月在若尔盖选取重度沙化草地和中度沙化草地各2块,对重度沙化草地采取施加牛粪+补播草种+翻耕,中度沙化草地施加牛粪处理。2016年9月对两种生态恢复样地及其各自对照样地土壤节肢动物、线虫以及植物群落和土壤物理性质进行调查。结果表明:生态恢复1年后两种沙化草地的植物群落和土壤物理性质得到显著改善。两种生态恢复措施下沙化草地土壤节肢动物和线虫群落结构与对照样地间存在明显差异,群落密度均显著高于对照样地(P<0.05)。土壤节肢动物类群数和Shannon指数均增加,Simpson指数降低,但仅重度沙化草地与对照地间有显著差异(P<0.05)。土壤线虫类群数和Shannon指数显著高于对照样地(P<0.05),Simpson指数显著低于对照样地(P<0.05)。多元回归分析结果表明,植物群落高度、盖度与土壤动物群落密度和多样性指数有显著相关(P<0.05)。研究表明,施加牛粪等生态恢复措施能够有效提高沙化高寒草地的土壤动物群落多样性,土壤线虫对生态恢复措施的响应比土壤节肢动物更敏感。
英文摘要	In September 2015, two different ecological restoration measurements were conducted by adding yak manure on soil surface of moderately desertified grasslands (MDG) and integrating the application of yak manure + seeds + plowing with 0-20 cm soil depth for severely desertified grasslands (SDG) in Zoige. Soil arthropods, nematodes, plant communities and soil physical properties were investigated in ecological restoration plots of SDG, MDG, and corresponding control (CK) plots in September 2016. The results showed that plant community structure in SDG and MDG plots recovered and soil physical properties improved significantly after one year restoration compared to the CK. The community structure of soil arthropods and nematodes in the SDG and MDG plots differed from that of the CK, and the abundances were significantly higher than those of the CK (P < 0.05). The taxonomic richness of soil arthropods and Shannon index increased and Simpson index decreased due to restoration treatments in SDG and MDG, but significant differences were only observed for SDG (P<0.05). The taxonomic richness and Shannon index of soil nematodes in restored SDG and MDG increased (P<0.05), and Simpson index significantly decreased (P<0.05). Results from regression analysis showed that the height and coverage of plant community were significantly related to the abundance and diversity of soil fauna communities. These results suggested that the community structure and diversity of soil fauna in desertified alpine grasslands were sensitive to ecological restoration treatments, with the soil nematode communities being more sensitive than soil arthropods. The responses of nematodes and arthropods were influenced by desertification degree of alpine grasslands.
中文关键词	沙化草地 ; 生态恢复 ; 土壤节肢动物 ; 土壤线虫
英文关键词	desertified grassland ecological restoration soil arthropod soil nematode
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:6386246
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238210
作者单位	西南民族大学青藏高原研究院, 成都, 四川 610041, 中国
推荐引用方式 GB/T 7714	马金豪,吴鹏飞. 土壤动物群落对沙化高寒草地生态恢复的响应[J],2018,37(12):3566-3575.
APA	马金豪,&吴鹏飞.(2018).土壤动物群落对沙化高寒草地生态恢复的响应.生态学杂志,37(12),3566-3575.
MLA	马金豪,et al."土壤动物群落对沙化高寒草地生态恢复的响应".生态学杂志 37.12(2018):3566-3575.