王鹏,刘拓,邱德明.基于局部惩罚型变权的建设用地生态适宜性空间模糊评价——以陕西延安宝塔区为例[J].西北地质,2021,54(1):232-241 WANG Peng,LIU Tuo,QIU Deming.Spatial Fuzzy Assessment of Ecological Suitability for Urban Land Use Based on Local Penalty Variable Weights——A Case Study of Yan'an Baota District[J].Northwestern Geology,2021,54(1):232-241
基于局部惩罚型变权的建设用地生态适宜性空间模糊评价——以陕西延安宝塔区为例
Spatial Fuzzy Assessment of Ecological Suitability for Urban Land Use Based on Local Penalty Variable Weights——A Case Study of Yan'an Baota District
投稿时间:2020-08-31  修订日期:2020-09-11
DOI:10.19751/j.cnki.61-1149/p.2021.01.021
中文关键词:  变权;模糊隶属度;生态适宜性评价
英文关键词:variable weights;fuzzy membership;ecological suitability evaluation
基金项目:中国地质调查局基础地质调查项目“新疆耕地区土地质量地球化学调查”(DD20190521)资助
作者单位
王鹏 中国地质调查局西安地质调查中心, 西北地质科技创新中心, 陕西 西安 710054 
刘拓 中国地质调查局西安地质调查中心, 西北地质科技创新中心, 陕西 西安 710054 
邱德明 中国地质调查局西安地质调查中心, 西北地质科技创新中心, 陕西 西安 710054 
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中文摘要:
      生态适宜性评价有助于优化建设用地空间布局,针对生态适宜性的模糊性以及常权评价的不足,采用局部惩罚型变权来改进空间模糊综合评价方法,并合理确定惩罚水平,能有效突出瓶颈因素对评价结果的限制性作用,更好体现生态适宜性评价的渐变性和模糊性,合理反映生态适宜性状况。结果显示:调权水平为0.25,惩罚水平α为0.841 8时,变权评价结果符合实际;陕西延安宝塔区的高、中、低度适宜及不适宜区面积分别占4.63%、20.71%、47.28%、27.38%,且90.26%的建设用地处于高、中度适宜区;不同区域生态适宜性等级受不同的主导限制性指标影响,地形位、距生态保护区距离、距水岸距离等指标影响分布广泛,灾害密度影响城区,距城镇距离影响偏远区域,而土壤质量、有益元素、土地阻力仅影响个别区域。建议加强宝塔城区地质灾害防治与监测,规范城镇建设用地审批,促进边远农村居民点整治,以优化宝塔区建设用地空间布局。
英文摘要:
      The ecological suitability evaluation is of help to optimize the space layout of construction land.In view of the ambiguity of ecological suitability and the insufficiency of variable weights,the local penalty variable weight is adopted to improve the spatial fuzzy assessment.The reasonable punishment highlights the restrictive effect of bottleneck factors on the evaluation results, reflecting the ecological suitability status as well.The results show that the assessment results are in accord with the actual situation when the adjustment weight level is 0.25 and the punishment level is 0.8418. In Yan'an Baota District the height, medium and low suitable areas are 4.63%, 20.71%, 47.28% respectively, and the unsuitable area is 27.38%. 90.26% of the construction land is in the high, moderate suitable area. The grade of ecological suitability in different regions is affected by different leading restrictive indexes. The factors such as topography, distance from ecological protection area, distance from water bank are widespread. Disaster density affects the urban areas; the distance affects remote areas. Soil quality, beneficial elements in soil, and the land resistance have limited effect. In order to optimize the layout of land in Baota district, it is suggested in this paper to strengthen the prevention and monitoring of geological disasters in urban areas of this district,to standardize the examination and approval of urban construction land, and to promote the renovation of remote rural settlement.
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