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当前位置: 首页 > 文章 > 基于熵权物元模型的耕地生态安全评价研究——以河北省肥乡县为例 土壤通报 2014,45 (1) 18-23
Position: Home > Articles > Evaluation of Ecological Security of Cultivated Land Based on Entropy Matter element Model-A Case Study of Feixiang County in Hebei Province Chinese Journal of Soil Science 2014,45 (1) 18-23

基于熵权物元模型的耕地生态安全评价研究——以河北省肥乡县为例

作  者：
张祥义;许皞;刘名冲;丁庆龙;王颖;赵文廷
单  位：
河北农业大学国土资源学院
关键词：
熵权;物元模型;耕地生态安全;肥乡县
摘  要：
耕地生态安全关系到区域可持续发展和粮食安全。以河北省肥乡县为例,考虑影响耕地生态安全的自然因素、经济因素和社会因素,结合熵权法和物元理论,建立基于熵权物元模型的肥乡县县域耕地生态安全评价模型,对肥乡县2001~2010年的耕地生态安全进行定量评价和分析。结果表明:肥乡县2001~2010年耕地生态安全状况可分为3个阶段:2001~2003年,肥乡县耕地生态安全水平处于安全状态;2004~2007年,肥乡县耕地生态安全状况逐年下降,由2004年的较安全水平降至2007年的不安全水平;2008~2010年,肥乡县耕地生态安全水平有所提高,由2008年的临界安全水平提高至2010年的较安全水平。建立的耕地生态安全评价模型能够准确合理地描述评价对象的生态安全等级,表明熵权物元模型在耕地生态安全评价中具有一定应用价值。
译  名：
Evaluation of Ecological Security of Cultivated Land Based on Entropy Matter element Model-A Case Study of Feixiang County in Hebei Province
作  者：
ZHANG Xiang-yi;XU Hao;LIU Ming-chong;DING Qing-long;WANG Ying;ZHAO Wen-ting;College of Resources and Environmental Sciences, Agricultural University of Hebei;
关键词：
Entropy weight;;Matter element model;;Cultivated land ecological security;;Feixiang County
摘  要：
The ecological security of cultivated land is related to the regional sustainable development and food security. Feixiang County in Hebei Province was chosen as study area in this paper. Considering influence factors of cultivated land ecological security(natural factors, economic factors and social factors), a regional cultivated land ecological security based on entropy weight and extensional theory was built. The method was adopted to quantitatively evaluate and analyze ecological security of cultivated land in Feixiang County from 2001 to 2010.The results showed that the cultivated land ecological security situation could be divided into three states: the cultivated land ecological security was at a safe state during 2001-2003, the cultivated land ecological security was at from a relatively safe state to an unsafe state due to it declined year by year during 2004-2007, and the cultivated land ecological security had a certain increase during 2008-2010. The model was the practical and scientific evaluation method that could describe the evaluation process of cultivated land eco-security. Therefore, the matter-element extension model was valuable in land eco-security assessment.

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