干旱区生态环境知识资源中心(Arid): 放牧强度对宁夏荒漠草原植物群落结构及草地生产力的影响

Arid

	放牧强度对宁夏荒漠草原植物群落结构及草地生产力的影响
其他题名	Effect of grazing intensities on plant community structure and grassland productivity in desert steppe of Ningxia
	张虎 1; 师尚礼 1; 王顺霞 2
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2012
卷号	26 期号:9 页码:73-76
中文摘要	以宁夏盐池县的荒漠草原区为试验地,以现场试验为手段,研究放牧强度(1.50只/hm~2、0.75只/hm~2、0.50只/hm~2、0只/hm~2)对荒漠草原植物群落结构及草地生产力的影响。结果表明:随着放牧强度的增加,植物群落优质牧草的重要值明显下降,毒草及家畜厌食植物的重要值明显上升;植物群落总盖度呈下降趋势,植物群落多样性呈现先增加后降低的趋势;草地生产力呈下降趋势,当放牧强度达到1.50只/hm~2时,家畜的采食量超过了50%,草产量比封育地下降了54.9%。最后,根据草场资源可持续发展利用原则提出了宁夏荒漠草原合理的放牧强度以0.75只/hm~2为宜。
英文摘要	The aim of this study was to evaluate the effect of grazing intensities(1.50 sheeps/hm~2,0.75 sheeps/hm~2,0.50 sheeps/hm~2,0 sheeps/hm~2) on plant community structure and grassland productivity in desert steppe of Ningxia Province.The results showed that with the increase of grazing intensity,importance-value of high quality forage decreased obviously,while those of noxious weeds and unpalatable plants increased,and the plant diversity first increased then decreased.The total vegetation coverage decreased with the increase of grazing intensity,there was also a decrease in grassland productivity,the forage yields of pasture declined to 54.9 % of restored grassland when the grazing capacity reached 1.5 sheeps/hm~2 and the intake rate of the total forages exceeded by 50%.Results indicated that the reasonable grazing capacity of the studied pasture land is proposed to be 0.75 sheeps/hm~2 according to the principle of sustainable development.
中文关键词	放牧强度 ; 植物群落结构 ; 草地生产力 ; 荒漠草原
英文关键词	stocking density plant community grassland productivity desert steppe
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:4614883
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228132
作者单位	1.甘肃农业大学草业学院, 草业生态系统教育部重点实验室;;甘肃省草业工程实验室, 兰州, 甘肃 730070, 中国; 2.宁夏回族自治区草原工作站, 银川, 宁夏 750002, 中国
推荐引用方式 GB/T 7714	张虎,师尚礼,王顺霞. 放牧强度对宁夏荒漠草原植物群落结构及草地生产力的影响[J]. 甘肃农业大学,2012,26(9):73-76.
APA	张虎,师尚礼,&王顺霞.(2012).放牧强度对宁夏荒漠草原植物群落结构及草地生产力的影响.干旱区资源与环境,26(9),73-76.
MLA	张虎,et al."放牧强度对宁夏荒漠草原植物群落结构及草地生产力的影响".干旱区资源与环境 26.9(2012):73-76.