| 基于ArcGIS的河北省生态环境脆弱性评估研究 |
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| 引用本文： | 王瑞君,蒋红军,阳小兰,张茹春,栗志强.基于ArcGIS的河北省生态环境脆弱性评估研究[J].安徽农业科学,2012,40(4):2176-2180. |
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| 作者姓名： | 王瑞君 蒋红军 阳小兰 张茹春 栗志强 |
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| 作者单位： | 河北省科学院地理科学研究所,河北石家庄,050011 |
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| 基金项目： | 河北省科学院科技计划项目，河北省科学院科技计划重点项目 |
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| 摘 要： | 目的]对河北省生态环境脆弱性进行评估。方法]基于ArcGIS,运用主导因素法和最大限制因素法,构建河北省生态环境脆弱性评估的敏感性-现实性概念框架模型,对生态环境脆弱性进行定量评估,并分析其空间分布特征。结果]河北省生态环境敏感性与其退化现状具有不一致性;重度脆弱区占全省总面积的4.1%,比例较小,主要分布在冀西北间山盆地的张家口坝下9县区,呈条带状分布,是土壤侵蚀脆弱性和土地沙化脆弱性共同作用的结果;中度脆弱占38.4%,比例最大,主要分布在冀西北间山盆地、燕山山区及太行山山区的大部分地区,主要由土壤侵蚀脆弱性所致,坝上坝下也有大块分布,主要由土地沙化脆弱性所致;河北平原区主要表现为轻度脆弱和微度脆弱,分别占全省面积25.1%和32.4%。结论]该研究为保障河北省生态安全和省域主体功能区规划提供了科学依据。
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| 关 键 词： | ArcGIS 生态环境敏感性 生态环境脆弱性评估 河北省 |
Comprehensive Assessment of the Ecological Vulnerability in Hebei Province Based on ArcGIS |
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| Institution: | WANG Rui-jun et al(Institute of Geographical Science,Hebei Academy of Sciences,Shijiazhuang,Hebei 050011) |
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| Abstract: | Objective] The study aimed at assessing the vulnerability of ecological environment in Hebei Province.Method] Based on ArcGIS,by using the dominant factor and maximum limits factor method,we established the sensitivity-reality model of the ecological vulnerability in Hebei Province to quantitatively assess its ecological vulnerability,and analyzed its spatial distribution.Result] The environmental degradation of Hebei Province was inconsistent with the sensitive of ecological environment.The area of severely vulnerable region accounted for only 4.1% of total area in Hebei Province,mainly distributed in 9 counties or districts of Baxia,Zhangjiakou,northwestern Hebei,which is covered with mountain and basin,showing banded distribution,which resulted from the vulnerability of soil erosion and land desertification.In addition,the moderately vulnerable region made up 38.4%,with the largest proportion,and mainly distributed in the mountain and basin region in northwestern Hebei,Yanshan Mountain and the most region of Taihang Mountain,due to the vulnerability of soil erosion.At the same time,there were also large patches of moderately vulnerable region in Bashang and Baxia,the part of Zhangjiakou,owning to the vulnerability of land desertification.Besides,Hebei plains were mainly mildly vulnerable and slightly vulnerable,and the area accounted for 25.1% and 32.4% respectively.Conclusion] The research could provide scientific references for safeguarding the ecological security and main functional district planing of Hebei Province. |
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| Keywords: | ArcGIS Sensitivity of ecological environment Vulnerability assessment of ecological environment Hebei Province |
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