| 基于突变级数法的南方红壤侵蚀小流域的生态恢复评价——以朱溪小流域为例 |
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| 引用本文： | 郭湘宇,;陈志强,;苏晓玲.基于突变级数法的南方红壤侵蚀小流域的生态恢复评价——以朱溪小流域为例[J].绵阳师范高等专科学校学报,2014(11):62-66. |
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| 作者姓名： | 郭湘宇 ;陈志强 ;苏晓玲 |
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| 作者单位： | [1]福建师范大学地理科学学院,福建福州350007; [2]湿润亚热带生态-地理过程国家重点实验室,福建福州350007 |
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| 基金项目： | 福建省自然科学基金资助项目（2013J01156）; 国家基础科学人才培养基金项目“福建师范大学地理学基地科研训练及科研能力提高项目”（J1210067） |
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| 摘 要： | 近年来,国内外生态恢复研究多数并未考虑生态系统恢复所具有的突变性.本研究针对生态恢复演变过程的突变特征建立了生态恢复评价指标体系,在ENVI4.2、Arc GIS9.2、MATLAB7.0等3S技术平台上,采用突变级数法对长汀县朱溪小流域生态恢复进行了定量评估和动态趋势分析.研究结果表明：（1）长汀朱溪小流域生态恢复总体较好,80%的流失区都可恢复到Ⅲ级以上（含Ⅲ级）,采取的有效治理措施主要为封禁;（2）对长汀朱溪小流域生态恢复因素主要有植被盖度、水土流失指数、土壤肥力和地表温度,其各个影响因素重要性大小排序为：植被盖度〉水土流失指数〉土壤肥力指数〉地表温度;（3）突变级数法和生态恢复的交叉融合具有重要应用价值和实践意义.研究认为,采用了突变级数法进行综合评价不仅避免了人为制定权重的主观性,也反映了南方红壤侵蚀小流域生态恢复演变过程的突变特征,更为科学地揭示了生态系统恢复变化过程的本质规律.
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| 关 键 词： | 生态恢复 突变级数法 朱溪小流域 |
Evaluation of Eco - restoration of Small Watershed Eroded by Red Soil Based on Catastrophe Progression Method in Zhuxi |
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| Institution: | GUO Xiang - yu , CHEN Zhi - qiang, SU Xiao - ling ( 1. College of Geographical Sciences, Fujian Normal University ; 2. State key Laboratory Base of Humid Subtropical Mountain Ecology, Fujian Normal University, Fuzhou, Fujian 350007) |
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| Abstract: | Catastrophe progression method is a useful tool to study the ecological problems, but relatively lit- tle is still known about ecological restoration in some mutant of events. Here we evaluated the ecological restora- tion and analyzed the trends on the ecological restoration of small watershed eroded by red soil in Zhuxi on EN- Ⅵ4.2, ArcGIS9.2, MATLAB7.0 platform. Our result shown enclosed and forbidden reserves are mainly ways of ecological restoration, and 80% erosion area can be recovered to grade Ⅲ and above （including grade Ⅲ） in Zhuxi small watershed regions. Moreover, vegetation coverage, soil erosion index, soil fertility index and soil sur- face temperature impacted on the ecological restoration and ecological process in Zhuxi small watershed regions, but those factors had not the same effects, i.e. ecological vegetation coverage 〉 soil erosion index 〉 soil fertility index 〉 surface temperature. In addition, our result also shown, the integration catastrophe progression method is a powerful tool to evaluate efficiency of the ecological restoration. We suggest that catastrophe progression method is used to evaluate not only the subjectivity of artificial weight in Southern red soil erosion in small watershed of ecological restoration process of Sahation, but more scientifically revealed the essence of changes in ecosystem res- toration process. |
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| Keywords: | ecological restoration catastrophe progression method Zhuxi small watershed |
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