基于AHP的土地生态安全评价研究与分析——以四川省巴中市为例

发布时间：2018-04-27 06:38

本文选题：层次分析法 + 土地　；参考：《国土资源科技管理》2016年06期

【摘要】：针对生态环境、经济、社会3方面因素分别选取人均耕地面积、耕地面积比重、森林覆盖率、耕地中旱地比重、自然保护区面积占国土面积比重、工业污水达标排放率;化肥施用量、人均GDP、第三产业比重、农业机械化水平、有效灌溉面积;城市化水平、人口自然增长率13个指标作为巴中市土地生态评价指标体系。首先,运用层次分析法(AHP)计算各指标权重,通过相关指标数据及公式得到计算结果,结果显示:巴中市2008年、2011年和2013年的土地生态安全值分别为0.817,0.828,0.832。然后,对巴中市土地生态安全状况进行评价分析,得到其土地生态安全水平基本处于上升趋势,并处于良好级(0.8T≤0.9)。最后,根据上述评价分析,分别针对生态保护、环境保护、经济及社会因素3方面给出巴中市土地安全实施保护对策。
[Abstract]:In view of the ecological environment, economic and social 3 factors, the per capita cultivated land area, the proportion of cultivated land, the forest coverage, the proportion of dry land in the cultivated land, the proportion of the natural reserve area to the land area, the discharge rate of industrial sewage, the amount of fertilizer application, the per capita GDP, the third industrial proportion, the agricultural mechanization level, the effective irrigation area, and the urbanization area; Level, the natural population growth rate of 13 indicators as the Bazhong land ecological evaluation index system. First, the use of analytic hierarchy process (AHP) to calculate the weight of each index, through the relevant index data and formula to get the results. The results show that the ecological safety value of the land in 2008, 2011 and 2013 in Bazhong, respectively, 0.817,0.828,0.832. and then, The ecological security situation of Bazhong land is evaluated and analyzed. The ecological security level of the land is basically in the upward trend and is in a good grade (0.8T < 0.9). Finally, according to the above evaluation analysis, the Countermeasures for the implementation of land security in Bazhong are given in the 3 aspects of ecological protection, environmental protection, economic and social factors.

【作者单位】：西南石油大学土木工程与建筑学院;
【基金】：中国工程院重大咨询项目(2015-ZD-05-09-05) 四川省发改委重点课题项目(ZH2015038) 四川省教育厅项目(16SA0021)
【分类号】：F323.211

【参考文献】