干旱区生态环境知识资源中心(Arid): 岷江上游干旱河谷荒坡植物群落种-面积曲线拟合及最小面积确定

Arid

	岷江上游干旱河谷荒坡植物群落种-面积曲线拟合及最小面积确定
其他题名	Fitting of Species-Area Relationship and Determination of Minimum Sampling Area for Plant Communities on Barren Hillsides of Arid Valleys in the Upper Reaches of the Minjiang River
	杨子松 1; 黎云祥 2; 刘伟 1; 吴天德 1; 王中国 3
来源期刊	生态与农村环境学报
ISSN	1673-4831
出版年	2010
卷号	26 期号:3 页码:227-230
中文摘要	采用由3种曲线方程拟合的群落种-面积曲线来确定岷江上游干旱河谷荒坡植物群落的最小取样面积,结果表明:对于岷江上游干旱河谷荒坡植物群落类型而言,利用方程S=c-ae~(-bA)拟合所得的种-面积曲线好于其他方程。当比例因子rho 取0.6、0.7、0.8时,群落最小面积均小于2m~2,样方可设置为1m2m,即样地面积为2 m~2,能够满足精度60% ~80%的研究要求; 当rho 取0.9时,群落最小面积均明显小于4 m~2,样方可设置为2m2 m,即样地面积为4 m~2,能够满足精度90%的研究要求。
英文摘要	The minimum sampling areas (MSA) for the plant communities on barren hillsides of arid valleys in the upper reaches of the Minjiang River were determined using the community species-area curves worked out via 3 curvilinear equations. Results show that to the types of plant communities in the study region, the species-area curve obtained via the equation S = c-ae~(-bA) is better than the others obtained via other two equations. When the proportional factor (rho ) is set at 0. 6, 0. 7 and 0. 8, MSAs are all smaller than 2 m2 and a quadrate can be designed as 1 m * 2 m, that is, the area of the quadrate is 2 m2, which is adequate to meet the requirement of the research for precision of 60% ~ 80%. When p is set at 0. 9, MSAs are obviously smaller than 4 m2, and the quadrate is designed as 2 m * 2 m, that is, the area of the quadrate is 4 m2, which is adequate to meet the requirement of the research for precision of 90%.
中文关键词	荒坡群落 ; 最小面积 ; 种-面积曲线 ; 干旱河谷 ; 岷江上游
英文关键词	barren hillsides community minimum sampling area species-area curve arid valley the upper reaches of the Minjiang River
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:3899821
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/225575
作者单位	1.阿坝师范高等专科学校, 汶川, 四川 623000, 中国; 2.四川省环境科学与生物多样性保护重点实验室, 四川省环境科学与生物多样性保护重点实验室, 南充, 四川 637002, 中国; 3.绵阳市开元中学, 绵阳, 四川 621000, 中国
推荐引用方式 GB/T 7714	杨子松,黎云祥,刘伟,等. 岷江上游干旱河谷荒坡植物群落种-面积曲线拟合及最小面积确定[J],2010,26(3):227-230.
APA	杨子松,黎云祥,刘伟,吴天德,&王中国.(2010).岷江上游干旱河谷荒坡植物群落种-面积曲线拟合及最小面积确定.生态与农村环境学报,26(3),227-230.
MLA	杨子松,et al."岷江上游干旱河谷荒坡植物群落种-面积曲线拟合及最小面积确定".生态与农村环境学报 26.3(2010):227-230.