干旱区生态环境知识资源中心(Arid): 载畜率和模拟降水对荒漠草原植物物种多样性的影响

Arid

	载畜率和模拟降水对荒漠草原植物物种多样性的影响
其他题名	Effects of Stocking Rate and Simulated Precipitation on the Plant Diversity of Desert Steppe
	王悦骅; 王忠武; 潘占磊; 闫宝龙; 韩梦琪; 康静; 韩国栋
来源期刊	中国草地学报
ISSN	1673-5021
出版年	2018
卷号	40 期号:2 页码:89-94
中文摘要	在荒漠草原采用两因素完全随机区组设计,分析了不同载畜率下降水变化对植物物种多样性的影响。结果表明:(1)低载畜率放牧下增加50%的降水植物物种数最多,增加100%的降水反而降低了植物物种的多样性。(2)在低载畜率放牧下,减少50%降水Shannon-wiener指数显著低于自然降水、增加50%、100%降水(P<0.05)。(3)中载畜率处理下,Margalef指数在减少50%降水下显著低于其他3个降水处理(P<0.05)。(4)Pielou指数在中、高载畜率放牧处理下,减少50%降水显著低于增加50%降水(P<0.05)。由上述结果可知,在中等载畜率放牧下减少降水有降低植物物种多样性的趋势。
英文摘要	In order to study the effects of different stocking rates and precipitation on the plant diversity, the completely randomized block design experiment was conducted with tow factors in the desert steppe. The results showed that:(1)The plant species was the largest under the conditions of increasing precipitation(W_(+50)) by 50% in light stocking rate, while increasing precipitation (W_(+100)) by 100% decreased the plant diversity. (2) The Shannon-wiener index was significant lower (P<0.05) in the decreasing precipitation (W_(-50)) by 50% than the normal precipitation and W_(+50), W_(+100) condition in the light stocking rate treatment. (3) The Margalef index was significant lower in the W_(-50) treatment than other three precipitation treatments (P<0.05). (4) The Pielou index was significant lower in W_(-50) treatment than those of W_(+50) treatments in the moderate and heavy stocking rate (P < 0.05),based on the results, it can be concluded that reducing precipitation had an effect of decreasing the species diversity in the moderate stocking rate condition.
中文关键词	短花针茅 ; 荒漠草原 ; 模拟降水 ; 载畜率 ; 植物多样性
英文关键词	Stipa breviflora Desert steppe Simulated precipitation Stocking rate Plant diversity
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:6223452
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/2XILL650/238657
作者单位	内蒙古农业大学草原与资源环境学院, 呼和浩特, 内蒙古 010010, 中国
推荐引用方式 GB/T 7714	王悦骅,王忠武,潘占磊,等. 载畜率和模拟降水对荒漠草原植物物种多样性的影响[J]. 内蒙古农业大学,2018,40(2):89-94.
APA	王悦骅.,王忠武.,潘占磊.,闫宝龙.,韩梦琪.,...&韩国栋.(2018).载畜率和模拟降水对荒漠草原植物物种多样性的影响.中国草地学报,40(2),89-94.
MLA	王悦骅,et al."载畜率和模拟降水对荒漠草原植物物种多样性的影响".中国草地学报 40.2(2018):89-94.