干旱区生态环境知识资源中心(Arid): 放牧干扰后自然恢复沙质草地大型土壤动物功能群变化特征

Arid

	放牧干扰后自然恢复沙质草地大型土壤动物功能群变化特征
其他题名	Changes in functional groups of soil macro-faunal community in degraded sandy grassland under post-grazing natural restoration in Hoqin Sand Land
	刘任涛 1; 赵哈林2 ; 赵学勇2
来源期刊	生态环境学报
ISSN	1674-5906
出版年	2011
卷号	20 期号:12 页码:1794-1798
中文摘要	通过调查科尔沁沙质退化草地不同强度放牧干扰(重度放牧，HGR；适度放牧，MGR)后自然恢复草地中大型土壤动物群落特征，分析了放牧干扰对大型土壤动物功能群的长期影响。结果共获得大型土壤动物1门2纲8目32个类群，优势类群为象甲科（鞘翅目）和蚁科（膜翅目）2类，共占捕获量的41.54%。大型土壤动物功能群包括植食性、肉食性和杂食性3类，分别具有16/15和1个类群，其个体数分别占总捕获数的64.08%/32.39%和3.52%.HGR有23个动物类群，分属于3个功能群；MGR有19个类群，但只有2个功能群（无杂食性）.HGR大型土壤动物个体数、类群数和多样性指数均略高于MGR，但HGR和MGR间无显著差异性（P>0.05）。植食性和肉食性土壤动物个体数占总个体数比例HGR均略低于MGR，但植食性动物和肉食性动物个体数间的比例较稳定。与中度放牧干扰产生的影响相比，重度放牧干扰对大型土壤动物群落（包括功能群特征）产生的长期影响更为明显。重度放牧后沙质草地自然恢复过程中大型土壤动物群落的营养结构变得更为复杂，但12年恢复时间对大型土壤动物群落结构恢复的影响有限。
英文摘要	With the support of Naiman desertification research station, CAS, the community characteristics of soil macro-fauna were investigated in degraded sandy grassland under post-heavy (HGR) and -moderate grazing (MGR) natural restoration in Horqin Sand Land. The diversity and functional groups of soil faunal community were also discussed in this paper. The specimens obtained belonged to 2 classes, 8 orders and 32 families (group). The dominant groups were Curculionidae and Formicidae, which totally accounted for 41.54% in individual. A total of 23 and 19 families were found respectively in HGR and MGR, where respectively accounting for 57.75% and 42.25% of total individuals. The density, group richness, and diversity index were a litter higher in HGR than in MGR, but no significant differences were found (P>0.05). Furthermore, there were three functional groups: phytophages, zoophages and pantophages, including 16, 15 and 1 group respectively. The percent of individuals accounted for 64.08%, 32.39% and 3.52% respectively for phytophages, zoophages and pantophages. The ratios of phytophages to zoophages in number were almost stable and near to 2:1, whether in HGR or in MGR. Overall, soil macro-faunal community was more sensitive to the heavy grazing than to moderate grazing, and the soil food web was more complicated in HGR than in MGR. But there was a limit effect of twenty-year restoration process of degraded sandy grassland on soil macro-faunal community structure.
中文关键词	放牧干扰 ; 恢复草地 ; 大型土壤动物 ; 功能群 ; 群落结构
英文关键词	Grazing disturbance restoration grassland soil macro-fauna functional group community structure
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ECOLOGY
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:4419128
来源机构	中国科学院西北生态环境资源研究院 ; 宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/226866
作者单位	1.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; 2.中国科学院寒区旱区环境与工程研究所, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	刘任涛,赵哈林,赵学勇. 放牧干扰后自然恢复沙质草地大型土壤动物功能群变化特征[J]. 中国科学院西北生态环境资源研究院, 宁夏大学,2011,20(12):1794-1798.
APA	刘任涛,赵哈林,&赵学勇.(2011).放牧干扰后自然恢复沙质草地大型土壤动物功能群变化特征.生态环境学报,20(12),1794-1798.
MLA	刘任涛,et al."放牧干扰后自然恢复沙质草地大型土壤动物功能群变化特征".生态环境学报 20.12(2011):1794-1798.