干旱区生态环境知识资源中心(Arid): 放牧对小叶锦鸡儿种群数量特征的影响

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	放牧对小叶锦鸡儿种群数量特征的影响
其他题名	Effect of grazing on quantitative characteristics of Caragana microphylla population
	王立红; 王悦; 王德凯; 解李娜; 马成仓
来源期刊	草业科学
ISSN	1001-0629
出版年	2018
卷号	35 期号:4 页码:800-806
中文摘要	本研究通过测定禁牧(CK)、轻度放牧(LG)、中度放牧(MG)和重度放牧(HG)下小叶锦鸡儿(Caragana microphylla)种群总盖度、密度、高度和总生物量,旨在掌握放牧对小叶锦鸡儿种群数量特征的影响。结果表明:随着放牧强度的增加,小叶锦鸡儿灌丛密度呈现先增加后减少的趋势,但各处理间无显著差异(P=0.11)。这说明中度放牧在一定程度上有利于小叶锦鸡儿的繁殖。灌丛盖度、高度和总生物量随着放牧强度的增加而显著降低(P<0.05),这说明放牧对灌木种群有明显的负作用。综合考虑小叶锦鸡儿种群的数量特征和生产力,在荒漠草原上适宜的载畜率应为中度放牧。
英文摘要	To understand the effect of grazing on the quantitative characteristics of Caragana microphylla population, we investigated the shrub cover,density,height,and total biomass of C.microphyllaunder non-grazing, light-grazing,moderate-grazing,and heavy-grazing treatments.The results showed that with increase in grazing intensity,the density of the C.microphylla shrub increased initially,and then decreased;however, there was no significant difference among the different treatments(P=0.11),suggesting,to some extent,that moderate grazing benefitted the reproduction of C.microphylla.Contrastingly,grazing significantly reduced the shrub cover,height,and total biomass of C.microphylla(P<0.05),suggesting that grazing had an obvious negative effect on the shrub.Based on the quantitative characteristics of C.microphylla population under different grazing treatments,we suggested that moderate grazing intensity should be moderate-intensity grazing in desert steppes.
中文关键词	放牧 ; 小叶锦鸡儿 ; 灌丛 ; 盖度 ; 高度 ; 总生物量 ; 密度
英文关键词	grazing Caragana microphylla shrub cover height total biomass density
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:6233182
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237319
作者单位	天津师范大学生命科学学院, 天津市动植物抗性重点实验室, 天津 300387, 中国
推荐引用方式 GB/T 7714	王立红,王悦,王德凯,等. 放牧对小叶锦鸡儿种群数量特征的影响[J],2018,35(4):800-806.
APA	王立红,王悦,王德凯,解李娜,&马成仓.(2018).放牧对小叶锦鸡儿种群数量特征的影响.草业科学,35(4),800-806.
MLA	王立红,et al."放牧对小叶锦鸡儿种群数量特征的影响".草业科学 35.4(2018):800-806.