新疆主要柽柳属植物(Tamarix L.)的生态类型划分与生境相似性研究

Study on Ecological Types and Habitat Similarity of Tamarix L. in Xinjiang

研究了新疆柽柳属植物的生态类型和生境相似性。根据水、盐两个环境因子 ,将新疆柽柳属植物的生境划分为高水位—低盐组、中高水位—中低盐组、高水位—中盐组、高水位—高盐组、低水位—低盐组和低水位—中盐组六个生境类型组。其下 ,按照土壤类型又划分成次一级共十个生境类型。此外 ,分析了新疆十种柽柳属植物生境相似性 ,使用聚类分析从土壤类型学角度又将新疆柽柳属植物初步确定出河谷河滩沙砾质新积土型、盐化草甸土型、风沙土型、典型盐土型和泛生境型五个基质生态类群。

Ecological types and habitat similarity of Tamarix L. in Xinjiang were studied this paper. Depend on analyzing groundwater lever and salt content of soil,the habitats of Tamarix are divided into six type groups. They are low salt type with high groundwater,middle salt type with high groundwater,high salt type with high groundwater,low salt type with low groundwater and middle salt type with low groundwater and middle to low salt type with middle to high groundwater respectively. These six type groups were divided into ten habitat types again. Using cluster analysis,author evaluated the similarities of habitats of Tamarix and divided the ecological group of Tamarix into five groups. The five groups are sandy-gravel soil type,salinization meadow soil type,typical saline soil type,aeolian soil type and wide-distribution type respectively.