干旱区生态环境知识资源中心(Arid): 长期放牧对短花针茅荒漠草原植物功能群特征的影响

Arid

	长期放牧对短花针茅荒漠草原植物功能群特征的影响
其他题名	Effects of Long-term Grazing on Characteristics of Plant Functional Groups in Stipa Breviflora Desert Steppe
	朱爱民; 韩国栋; 康静; 赵坤; 朱毅; 王忠武
来源期刊	草地学报
ISSN	1007-0435
出版年	2019
卷号	27 期号:6 页码:1459-1466
中文摘要	为揭示短花针茅(Stipa breviflora)荒漠草原植物功能群特征对长期放牧的响应机制,本研究以内蒙古四子王旗短花针茅荒漠草原为研究对象,2018年8月对围封14年(2004-2018)不同放牧处理下的植物物种组成、高度、盖度、密度及生产力进行观测,并对功能群植物多样性、丰富度、均匀度和重要值分析。结果表明:随着放牧强度的增加植物种类逐渐减少,在重度放牧区分属不同功能群的植物均有不同程度消失,不同功能群植物株高、盖度、生产力随放牧强度的增加均呈降低的变化趋势;对照区功能群多样性指数显著大于重度放牧区,对照区和轻度放牧区丰富度指数显著大于中度和重度放牧区;不同放牧处理下功能群多样性指数、丰富度指数与生产力呈显著正相关关系。研究认为,长期重度放牧减少了荒漠草原功能群植物多样性和丰富度从而导致草地生产力降低,进而影响草地的可持续利用。
英文摘要	In order to reveal the response mechanism of plant functional group characteristics to long-term grazing in Stipa breviflora desert steppe,this study took Stipa Breviflora desert steppe in Siziwangqi Banner of Inner Mongolia as the research object,from May to September 2018,species composition,plant height,coverage and density of desert steppe that was enclosed for 14 years(2004-2018)under different grazing treatments were observed,and the species diversity,richness,evenness,relative abundance and important value of functional groups were analyzed.The results showed that with the increase of grazing intensity, plant species gradually decreased,and plants belonging to different functional groups disappeared in different degrees in the heavy grazing area,and plant height,coverage and productivity of different functional groups decreased;The diversity index of functional groups in the control area was significantly higher than that in the heavy grazing area,and the richness index in the control area and the light grazing area was significantly higher than that in the moderate and heavy grazing area;Diversity index and richness index of functional groups were positively correlated with productivity under different grazing treatments.It is concluded that long-term heavy grazing reduces plant diversity and richness of functional groups in desert steppe,which leads to the decrease of grassland productivity and consequently affects the sustainable utilization of grassland.
中文关键词	放牧 ; 荒漠草原 ; 功能群 ; 生产力
英文关键词	Grazing Desert grassland Functional groups Productivity
语种	中文
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6633540
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/315895
作者单位	内蒙古农业大学草原与资源环境学院, 草地资源教育部重点实验室;;农业部饲草栽培、加工与高效利用重点实验室;;内蒙古自治区草地管理与利用重点实验室, 呼和浩特, 内蒙古 010019, 中国
推荐引用方式 GB/T 7714	朱爱民,韩国栋,康静,等. 长期放牧对短花针茅荒漠草原植物功能群特征的影响[J]. 内蒙古农业大学,2019,27(6):1459-1466.
APA	朱爱民,韩国栋,康静,赵坤,朱毅,&王忠武.(2019).长期放牧对短花针茅荒漠草原植物功能群特征的影响.草地学报,27(6),1459-1466.
MLA	朱爱民,et al."长期放牧对短花针茅荒漠草原植物功能群特征的影响".草地学报 27.6(2019):1459-1466.