Community Structure and Abiotic Determinants of Salt Marsh Plant Zonation Vary Across Topographic Gradients

被引：76

作者：

Cui, Bao-Shan ^{[1
]}

He, Qiang ^{[1
,2
]}

An, Yuan ^{[2
]}

机构：

[1] Beijing Normal Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100875, Peoples R China

[2] Shanghai Jiao Tong Univ, Dept Plant Sci, Sch Agr & Biol, Shanghai 200240, Peoples R China

来源：

ESTUARIES AND COASTS | 2011年 / 34卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Estuary; Flooding; Salinity; Salt marsh; Yellow River Delta; Wetlands; LATITUDINAL VARIATION; RELATIVE IMPORTANCE; SPECIES RICHNESS; SALINITY; STRESS; GERMINATION; DIVERSITY; PATTERNS; ATLANTIC; GROWTH;

D O I：

10.1007/s12237-010-9364-4

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

We investigated compositions of plant communities and their abiotic determinants in the Yellow River estuary, China. Along a topographic gradient, we quantified plant compositions and abiotic factors in different vegetation zones, and examined the relationships between plant communities and abiotic factors using canonical correspondence analysis and the effects of vegetation shading using a removal experiment. The relationships between plant communities and abiotic factors differed between high elevations and low elevations. Salinity and flooding oppositely related with distributions of plant communities at low elevations, but they appeared to operate synergically at high elevations. The effects of vegetation shading were found to vary across the topographic gradient, indicating spatial variations in potential positive interactions among plants. These results suggest that spatial variations in determinants of community structure should be addressed in future studies in estuarine and coastal systems, as well as in other natural habitats.

引用

页码：459 / 469

页数：11

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