| 桂林岩溶石山植物群落植物功能性状对不同坡向环境因子的响应 |
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| 引用本文： | 盘远方,陈兴彬,姜勇,李月娟,黄宇欣,倪鸣源,陆志任,覃彩丽,钟章浪.桂林岩溶石山植物群落植物功能性状对不同坡向环境因子的响应[J].广西植物,2019,39(2):189-198. |
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| 作者姓名： | 盘远方 陈兴彬 姜勇 李月娟 黄宇欣 倪鸣源 陆志任 覃彩丽 钟章浪 |
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| 作者单位： | 广西师范大学 珍稀濒危动植物生态与环境保护教育部重点实验室, 广西 桂林541006;广西师范大学 生命科学学院,广西 桂林 541006;江西省林业科学院, 江西省植物生物技术重点实验室, 南昌 330013 |
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| 基金项目： | 广西自然科学基金青年基金项目(2016GXNSFBA380030); 广西壮族自治区中青年教师基础能力提升项目(ky2016YB062); 2017年度自治区级大学生创新创业训练计划项目(201710602254)[Supported by Guangxi Natural Science Youth Found Program(2016GXNSFBA380030); Ability Improvement Fund in Guangxi(ky2016YB062); Annual Autonomous Region College Students Innovation and Entrepreneurship Training Program in 2017(201710602254)]。 |
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| 摘 要： | 该研究以桂林岩溶石山不同坡向的植物群落为对象,探讨植物功能性状(比叶面积、叶绿素含量、木材密度和环境因子随坡向的变化规律。结果表明:比叶面积和叶绿素含量为阴坡>半阴坡>阳坡,阴坡和半阴坡分别与阳坡差异性显著;木材密度为阴坡<半阴坡<阳坡,阴坡、半阴坡分别与阳坡差异性显著。土壤有机质含量表现为阴坡大于阳坡,且阴坡与阳坡差异性显著;土壤全磷、土壤有效磷均表现为阳坡含量最高,且阴坡与阳坡差异性显著;土壤有效钾、土壤全钾则分别为阴坡、半阴坡含量最高,土壤全钾含量在各坡向上差异均显著,而土壤有效钾则为阴坡、半阴坡与阳坡均差异性显著。回归分析表明群落水平比叶面积在阴坡和半阴坡上与土壤有机质含量呈显著负相关;群落水平叶绿素含量与土壤全磷含量和土壤有效钾含量在阴坡上呈显著正相关;在不同坡向梯度上群落水平木材密度与环境因子无相关性。群落水平上植物功能性状随坡向的变化规律,反映了岩溶石山植物群落构建过程中环境对功能性状的筛选效应。
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| 关 键 词： | 植物群落 功能性状 坡向 环境因子 岩溶石山 |
| 收稿时间： | 2018/5/14 0:00:00 |
Response of plant functional traits on the soil environmental factors along with slope aspects in karst hills of Guilin, South China |
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| PAN Yuanfang,CHEN Xingbin,JIANG Yong,LI Yuejuan,HUANG Yuxin,NI Mingyuan,LU Zhiren,QIN Caili,ZHONG Zhanglang.Response of plant functional traits on the soil environmental factors along with slope aspects in karst hills of Guilin, South China[J].Guihaia,2019,39(2):189-198. |
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| Authors: | PAN Yuanfang CHEN Xingbin JIANG Yong LI Yuejuan HUANG Yuxin NI Mingyuan LU Zhiren QIN Caili ZHONG Zhanglang |
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| Institution: | 1. Key Laboratory of Ecology of Rare and Endangered Species and Environment Protection, Ministry of Education Guangxi Normal University,
Guilin 541006, Guangxi, China; 2. College of Life Sciences, Guangxi Normal University, Guilin 541006, Guangxi, China;
3. Jiangxi Provincial Key Lab for Plant Biotechnology, Jiangxi Academy of Forestry, Nanchang 330013, China |
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| Abstract: | In this study, we measured three plant functional traits(SLA, specific leaf area; CC, leaf total chlorophyll content; WD, wood density)and five environmental factors among different plant communities in karst hills of Guilin to explore the relationship between plant functional traits and environmental factors along the slope(shady, semi-shady, sunny)aspects. The results showed that SLA and CC showed a consistent changing pattern, that is, shady>semi-shape>sunny slope aspects, and significant differences were found between shady and sunny and semi-shady and sunny slope aspects. Whereas WD was shady<semi-shape<sunny slope aspects and there were also significant differences between shady and sunny and semi-shady and sunny slope aspects. TP and AP were less both the shady and semi-shady areas of the slope, whereas SOM, TK and AK were higher in shady and semi-shady areas of the slope. Simple regression analyses between plant functional traits and soil factors indicated that SLA was mainly affacted by SOM and showed a significant negetive changing pattern along the shady and semi-shady slope aspects; CC was significantly positively correlated with TP and AK in shady areas of the slopes while there was no significant correlation between WD and five environmental factors along the slope aspects. That community level plant functional traits change along the slope aspects reflected the environmental filtering effects in rebuilding process of vegetation community in karst hills of Guilin. |
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| Keywords: | plant communities plant functional traits slope aspects environmental factors karst hills |
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