黄河中下游典型河岸带植物物种多样性及其对环境的响应

生态学杂志

黄河中下游典型河岸带植物物种多样性及其对环境的响应

赵清贺^1,2,马丽娇^1,2,刘倩^1,2,丁圣彦^1,2**,汤茜^1,2,卢训令^1,2

(¹教育部黄河中下游数字地理技术重点实验室，河南开封 475004； ^2河南大学环境与规划学院，河南开封 475004)

出版日期:2015-05-10 发布日期:2015-05-10

Plant species diversity and its response to environmental factors in typical river riparian zone in the middle and lower reaches of Yellow River.

ZHAO Qing-he^1,2, MA Li-jiao^1,2, LIU Qian^1,2, DING Sheng-yan^1,2**, TANG Qian^1,2, LU Xun-ling^1,2

(¹Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions, Ministry of Education, Kaifeng 475004, Henan, China; ^2College of Environment and Planning, Henan University, Kaifeng 475004, Henan, China)

Online:2015-05-10 Published:2015-05-10

摘要/Abstract

摘要：

为维持河岸带生态系统的完整，对河岸带的物种多样性研究十分必要。本研究采用Braun-Blanquet多度等级划分标准结合样方法调查了黄河中下游典型河段河岸带植物群落物种多样性特征，并探讨其与环境因子的关系。结果表明：黄河中下游典型河段河岸带调查的52个群落样方中，共有36科78属86种植物，群落物种组成较为丰富，但优势种并不明显。单一群落样方中，物种组成简单，不同样方之间物种组成与多样性存在明显差异，其中，受干扰较重的样方物种多样性较低，表明研究区河岸带植物物种多样性深受人为干扰所造成的生境破碎的影响。冗余分析表明，海拔和至河流距离是黄河中下游河岸带植物多样性的重要影响因子。

关键词: 土壤质地, 水稳性团聚体, 有机碳, 全磷, 全氮, 化学计量比

Abstract:

It is indispensable to investigate species diversity for maintaining the integrity of riparian ecosystems. In this study, integrating the BraunBlanquet coverabundance scale and the quadrat sampling methods, we investigated diversity characteristics of plant community in typical river riparian zones in the middle and lower reaches of Yellow River, and analyzed the relationship between herbaceous plant diversity and environmental factors. The results showed that a total of 36 families, 78 genera, and 86 plant species were observed from 52 community quadrats in the study area. Plant community species composition was rather rich, while dominant species was not obvious. In a single community quadrat, species composition was simple. However, obvious difference existed between different quadrats regarding species composition and diversity. Moreover, species diversity was relatively low for the middle stream areas that were disturbed seriously by human activities, indicating that plant species diversity in the study areas was influenced seriously by habitat fragmentation caused by human disturbance. Redundancy analysis showed that altitude and distance to river were important factors influencing plant diversity of riparian zones in the middle and lower reaches of Yellow River.

Key words: soil texture, water stable aggregate, organic carbon, total phosphorus, total nitrogen, stoichiometric ratio

赵清贺1,2,马丽娇1,2,刘倩1,2,丁圣彦1,2**,汤茜1,2,卢训令1,2. 黄河中下游典型河岸带植物物种多样性及其对环境的响应[J]. 生态学杂志.

ZHAO Qing-he1,2, MA Li-jiao1,2, LIU Qian1,2, DING Sheng-yan1,2**, TANG Qian1,2, LU Xun-ling1,. Plant species diversity and its response to environmental factors in typical river riparian zone in the middle and lower reaches of Yellow River.[J]. cje.

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