摘要
作者分别于1998年、2005年和2007年春季采用样线法调查了胡列也吐湿地水鸟的种数和数量,得出这3 a水鸟群落多样性指数分别为3.66、3.85和3.33。研究了其变化并探讨原因,分析认为,因适当的补水机制导致2005年群落多样性和均匀度最高,湿地鸟类群落变丰富。2007年补水水位过深导致该生境内鸟类群落多样性下降。
Species and quantity of waterfowl in Hulieyetu wetland in Spring in 1998, 2005 and 2007 were surveyed by the sampleline method. Diversity indexes of three years were 3.66, 3.85 and 3.33 respectively. Analysis of factors intlueneing the variation showed that the appropriate water supply mechanism in 2005 resulted in the highest community diversity and uniformity and very abundant wetland bird community, while, in 2007, water supplied in wetland was too deep that the diversity index of waterfowl community decreased than other two years.
关键词
水鸟
群落变化
湿地
保护对策
Waterfowl
Community variation
Conservation strategy
