克隆植物芦苇叶片功能性状对异质环境的响应

doi:10.13287/j.1001-9332.202208.010

应用生态学报 ›› 2022, Vol. 33 ›› Issue (8): 2171-2177.doi: 10.13287/j.1001-9332.202208.010

克隆植物芦苇叶片功能性状对异质环境的响应

周怡^1,2, 焦亮^1,2*, 秦慧君^1,2, 吴晶晶^1,2, 车曦晨^1,2

¹西北师范大学地理与环境科学学院, 兰州 730000;
²甘肃省绿洲资源环境与可持续发展重点实验室, 兰州 730000

收稿日期:2021-12-28 接受日期:2022-04-07 出版日期:2022-08-15 发布日期:2023-02-15
通讯作者: * E-mail: jiaoliang@nwnu.edu.cn
作者简介:周怡, 女, 1997年生, 硕士研究生。主要从事克隆植物生态学研究。E-mail: zhouyihhhi@163.com
基金资助:
甘肃省自然科学基金项目(20JR10RA093)和中国科学院“西部之光”项目(2020XBZG-XBQNXZ-A)资助。

Responses of leaf functional traits of clonal plant Phragmites australis to heterogeneous environments

ZHOU Yi^1,2, JIAO Liang^1,2*, QIN Hui-jun^1,2, WU Jing-jing^1,2, CHE Xi-chen^1,2

¹College of Geography and Environment Science, Northwest Normal University, Lanzhou 730000, China;
²Key Laboratory of Resource Environment and Sustainable Development of Oasis, Lanzhou 730000, China

Received:2021-12-28 Accepted:2022-04-07 Online:2022-08-15 Published:2023-02-15

摘要/Abstract

摘要： 芦苇叶片功能性状的空间变化反映克隆植物的资源分配格局,而其与土壤环境因子的耦合关系体现了克隆植物对异质环境的生态适应策略。本研究以中国西北内陆湿地克隆植物芦苇为对象,分析了湿生生境、盐沼生境、荒漠生境条件下芦苇叶片功能性状及其对土壤环境因子的响应。结果表明: 从湿生生境到荒漠生境,芦苇叶片C、N、P含量分别下降7.2%、40.0%、64.1%,N、P利用效率增加,芦苇叶长、叶宽、叶面积、叶干重、比叶面积和叶厚度均表现出减小趋势。芦苇叶片功能性状间存在协同变化的特征,比叶面积与叶片营养元素表现出显著相关关系。土壤容重、盐分和水分分别是驱动湿生生境、盐沼生境和荒漠生境芦苇叶片功能性状变异的最重要的环境因子。

关键词: 克隆植物, 生态策略, 内陆湿地, 环境梯度, 叶片

Abstract: The spatial variation of leaf functional traits in Phragmites australis could reflect the changes of resource allocation. The coupling relationship between leaf functional traits and soil environmental factors represents the ecological adaptation strategies of clonal plants to heterogeneous environments. The research object clonal plant, P. australis, was selected from an inland wetland in northwest China. We examined leaf functional traits of P. australis and their responses to soil environmental factors in wetland, salt marsh, and desert habitats. The results showed that from wetland to desert habitat, foliar contents of C, N and P decreased by 7.2%, 40.0% and 64.1%, respectively, and N and P use efficiency increased, leaf length, leaf width, leaf area, leaf dry weight, specific leaf area and leaf thickness showed a decreasing trend. The coevolution of leaf functional traits was observed, indicating a significant correlation between leaf nutrient elements and specific leaf area. Soil bulk density, salinity, and water availability were the most important environmental factors driving the variation of leaf functional traits of P. australis in wetland, salt marsh and desert habitats, respectively.

Key words: clonal plant, ecological strategy, inland wetland, environmental gradient, leaf

周怡, 焦亮, 秦慧君, 吴晶晶, 车曦晨. 克隆植物芦苇叶片功能性状对异质环境的响应[J]. 应用生态学报, 2022, 33(8): 2171-2177.

ZHOU Yi, JIAO Liang, QIN Hui-jun, WU Jing-jing, CHE Xi-chen. Responses of leaf functional traits of clonal plant Phragmites australis to heterogeneous environments[J]. Chinese Journal of Applied Ecology, 2022, 33(8): 2171-2177.

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克隆植物芦苇叶片功能性状对异质环境的响应

Responses of leaf functional traits of clonal plant Phragmites australis to heterogeneous environments

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