摘要
应用巢式样方法和积累样方法，以贝加尔针茅（Ｓｔｉｐａｂａｉｃａｌｅｎｓｉｓ）－线叶菊（Ｆｉｌｉｆｏｌｉｕｍｓｉｂｉｒｉｃｕｍ）群落和羊草（Ｌｅｙｍｕｓｃｈｉｎｅｎｓｉｓ）－杂类草群落为代表，研究了松嫩平原草地植物多样性取样强度。结果表明，最小面积为１／４１／２ｍ２；１，１／４，１／６ｍ２的最小取样数分别是１０１２，１８２２，２５２８个，超过最小取样数后３种面积多样性指数在９５％概率水平差异不显著；
This paper studied the sampling intensity of plant diversity of grassland communities in the Songnen Plain of northeast China, with the nested quadrat and the pooled quadrat methods and Stipa baicalensis Filifolium sibiricum community and Leymus chinensis herbage community as deputies. The results showed that the minimal area was 1/4～1/2 m 2; the minimal sampling number of 1, 1/4 and 1/6 m 2 was 10￣12, 18￣22 and 25￣28 respectively; The above three types of area might get unanimous results in the indices of diversity at 95% of probability level; a large number of small quadrats was preferable to a small number of large quadrats.
出处
《吉林农业大学学报》
CAS
CSCD
1996年第4期33-36,共4页
Journal of Jilin Agricultural University
关键词
松嫩平原
草地群落
植物多样性
取样强度
songnen plain
grassland communities
plant diversity
sampling intensity
