滇池流域富磷山地优势植物种群生态分化

生态学杂志

滇池流域富磷山地优势植物种群生态分化

曹晶潇,付登高,阎凯,王甜甜,张亚杰,张岩,张龙,段昌群^**

（云南大学环境科学与生态修复研究所/云南生物资源保护与利用国家重点实验室培育基地, 昆明 650091）

出版日期:2014-12-10 发布日期:2014-12-10

The ecological differentiation of dominant plants in phosphorus-enriched areas within the Dianchi Lake basin.

CAO Jing-xiao, FU Deng-gao, YAN Kai, WANG Tian-tian, ZHANG Ya-jie, ZHANG Yan, ZHANG Long, DUAN Chang-qun^**

(Institute of Environmental Sciences and Ecological Restoration / Key Laboratory for Conservation and Utilization of BioResource of Yunnan, Yunnan University, Kunming 650091, China)

Online:2014-12-10 Published:2014-12-10

摘要/Abstract

摘要：

为了解植物在富磷山地条件下的生态分化情况，本试验以滇池流域柴河子流域山地富磷区4种常见优势植物（紫茎泽兰Eupatorium adenophorum、戟叶酸模Rumex hastatus、蔗茅Saccharum rufipilum、马桑Coriaria sinica）为研究对象，分别对采自不同土壤全磷条件下4种植物各6个种群进行了同质园栽培试验，通过测量其表型性状，并采用单因素方差分析、变异系数分析和相关性分析等统计方法，分析了4种植物各种群的表型变异情况。结果表明：4种植物不同种群间在株高、叶面积、比叶面积和叶干物质量上存在显著差异，同种植物不同种群同一表型性状上变异系数差别较大，不同表型性状变异幅度也不相同。蔗茅、戟叶酸模、紫茎泽兰和马桑各种群表型性状的变异平均有24.01%、4.58%、16.80%和9.42%来源于种群间，59.86%、66.17%、63.15%和68.51%的变异存在于各种群内部。这说明，富磷区山地优势植物对土壤异质环境的适应不仅仅只是表型上的响应，已出现一定的遗传分化。

关键词: 街道峡谷, 扩散模拟, 空气质量, 发展趋势

Abstract: In order to understand the ecological differentiation of plants within phosphorusenriched mountainous areas, four dominant species (Eupatorium adenophorumm, Rumex hastatus, Saccharum rufipilum, and Coriaria sinica) were selected from phosphorus-enriched mountainous areas that have various soil phosphorus contents in Dianchi watershed. The plants from six populations of each species were planted in a homogeneous garden. Single factor analysis of variance, coefficient of variation, and correlation analysis were applied to study the ecological differentiation among the populations of each of the four dominant species. The results showed that interpopulation variations in all morphological traits (plant height, leaf area, specific leaf area, leaf dry matter content) were significant for the four species. Interpopulation variations in E. adenophorumm, R. hastatus, S. rufipilum, and C. sinica were 16.80%, 4.58%, 24.01%, 9.42%, and the intrapopulations were 59.86%, 66.17%, 63.15%, 68.51%, respectively. The results suggested that the adaptation of dominant plants in phosphorus-enrich areas to local heterogeneous environments is not only characterized by the response in phenotype, but also by certain genetic differentiation.

Key words: street canyons, diffusion simulation, air quality, development trend

曹晶潇,付登高,阎凯,王甜甜,张亚杰,张岩,张龙,段昌群**. 滇池流域富磷山地优势植物种群生态分化[J]. 生态学杂志.

CAO Jing-xiao, FU Deng-gao, YAN Kai, WANG Tian-tian, ZHANG Ya-jie, ZHANG Yan, ZHANG Long, DUAN Chang-qun**. The ecological differentiation of dominant plants in phosphorus-enriched areas within the Dianchi Lake basin.[J]. cje.

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