盐生植物群落与土壤含盐量的关系及对土壤盐分的指示作用

黄河三角洲有着的丰富的荒地资源，通过对河口区的野外调查和实验室分析表明，其盐生植被与盐荒地土壤含盐量相关性明显。随土壤含盐量的增加，种植种类逐渐减少，群落总盖度降低，而耐盐强度大的翅碱蓬逐渐成为优势种。利用盐生植物群落的结构特征和优势植物叶的氯硫比，可以指示土壤含盐量，为盐荒土壤的改良利用提供科学依据。

Relation Between Salt Plant Community and Indication of Salt Content in Soil

Discussion on relation between salt plant community and salt content in soil in estuary region of Yellow River was presented. Through field survey and chemical analysis, it showed that increased of salt content in soil, species of plant and density of community were decreased and salt tolerance species were dominated. Adopting the characteristics of the community structure and the ratio of chlorine and sulfur in the leaves of plant could indicate the salt content of soil, which would provide scientific basis for improving soil.