辽河河口湿地自然保护区植物群落生态的研究

Ecology of plant communities in Liaohe estuary wetland tonservation area.

通过野外调查和定量分析，对辽河河口湿地自然保护区主要植物群落的结构、功能及其演替规律进行了研究．结果表明，土壤水盐含量与植物群落分布密切相关，用组平均法将４５个芦苇群落样方分为芦苇草甸和芦苇沼泽两大类，用ＰＣＡ排序对环境进行分类，确定出影响植物群落空间配置的主导因子是土壤水分和土壤盐分．

Field survey and quantitative analysis on the structure, function and successional patternof plant communities in Liaohe estuary wetland conservation area show that their distribution patterns are closely related to the salt and moisture contents of soil. Using the groupaverage method, 45 quadrats of reed communities are divided into two kinds of reed meadow and swamp. Through classifying different habitats by PCA ordination procedure, theleading factors affecting spatial patterns of plant communities are determined to be soilsalt and moisture contents.