| 黄土丘陵沟壑区不同立地环境因子对植被变化的解释比例分析 |
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| 引用本文： | 张振国,焦菊英,贾燕锋,王宁.黄土丘陵沟壑区不同立地环境因子对植被变化的解释比例分析[J].中国水土保持科学,2010,8(2):59-67. |
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| 作者姓名： | 张振国 焦菊英 贾燕锋 王宁 |
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| 作者单位： | 1. 中国科学院,水利部,水土保持研究所,712100,陕西杨凌;中国科学院研究生院,100049,北京
2. 中国科学院,水利部,水土保持研究所,712100,陕西杨凌;西北农林科技大学水土保持研究所,712100,陕西杨凌 |
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| 基金项目： | 国家自然科学基金，％％，西北农林科技大学创新团队建设计划项目 |
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| 摘 要： | 深入研究植被恢复过程中植被变化与环境因子的响应规律,对于当前西部地区生态环境建设中有关林草措施的配置问题具有重要理论意义和实践价值。根据黄土丘陵沟壑区安塞42个退耕地植被样地的调查数据,采用典范对应分析和偏典范对应分析从单因子、分组变量及显著因子3方面分析立地环境因子对植被恢复的影响。结果表明:7组环境因子、33项环境因子指标中,影响黄土丘陵沟壑区植被物种变化的关键环境因子为土壤有机质、全磷、速效磷、土壤含水量(0～40cm)、土壤结构性颗粒指数、<0.001mm黏粒、蔗糖酶、坡向及退耕年限。建议黄土丘陵沟壑区退耕地的植被恢复遵循立地条件,以自然恢复为主,并进行适当的培肥、引种等人工干预调控,以促进退耕地植被恢复的进程。
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| 关 键 词： | 退耕地 自然恢复 环境因子 对应分析 黄土高原 |
Interpretation proportion analysis of different environmental factors on vegetation variations in the Hilly-gully area of Loess Plateau |
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| Zhang Zhenguo,Jiao Juying,Jia Yanfeng,Wang Ning.Interpretation proportion analysis of different environmental factors on vegetation variations in the Hilly-gully area of Loess Plateau[J].Science of Soil and Water Conservation,2010,8(2):59-67. |
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| Authors: | Zhang Zhenguo Jiao Juying Jia Yanfeng Wang Ning |
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| Institution: | Zhang Zhenguo1,2,Jiao Juying1,3,Jia Yanfeng1,Wang Ning1,2(1.Institute of Soil , Water Conservation,CAS & MWR,712100,Yangling,Shaanxi,2.Graduate School of the Chinese Academy of Sciences,100049,Beijing,3.Institute of Soil , Water Conservation,Northwest A & F University,Shaanxi: China) |
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| Abstract: | In order to provide scientific basis for vegetation restoration of abandoned farmlands in the Hilly-gully area of Loess Plateau,it is important to study the relation between vegetation variation and environmental factors.Based on observation of 42 plots of abandoned farmland in Ansai,affection of local environment factors on vegetation restoration was analysised from single factor,packet variables and significant factors through Canonical Correspondence Analysis and Partial Canonical Correspondence Analysis... |
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| Keywords: | abandoned cropland natural restoration environmental factor correspondence analysis Loess Plateau |
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