| 引用本文: | 刘航,胡永翔,尚国琲.水足迹视角下华北平原区县域土地整治生态绩效评价研究[J].灌溉排水学报,0,():-. |
| liuhang,huyongxiang,shangguofei.水足迹视角下华北平原区县域土地整治生态绩效评价研究[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】在水足迹视角下对华北平原区县域土地整治生态绩效进行评价。【方法】基于GROPWAT计算土地整治前后的蓝、绿、灰水足迹，构建以四个具体整治工程为准则层，共11个指标的土地整治生态绩效评价体系。选用综合赋权法对景县16个乡镇进行生态绩效评价。【结果】土地整治实施后，景县蓝、绿、灰水足迹均有所增加，其中蓝水和灰水足迹增加显著；景县整体生态绩效处于较好水平，良等及以上乡镇共8个，中等及以上乡镇共13个。阻碍景县生态绩效提高的主要障碍因素为：新增水浇地提高率、新增道路硬化率、排灌密度提高率、旱地水利化程度提高率和生物丰度指数提高率。主要障碍类型为水利障碍型和平整障碍型，次要障碍类型为道路障碍型和生态障碍型。【结论】通过土地整治工程实施，景县整体生态效益得到有效提高，但对水资源存在负面影响。水足迹视角下华北平原区县域土地整治生态绩效评价模式可为相似区域的土地整治工程建设提供理论参考和可行范式。 |
| 关键词: 土地整治;水足迹;生态绩效;综合赋权法; |
| DOI： |
| 分类号:X826;F301.2 |
| 基金项目:河北省社会科学,HB20YJ032,“生态文明视域下河北省土地整治综合绩效评价研究” |
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| Research on ecological performance evaluation of land consolidation in counties in North China Plain from the perspective of water footprint |
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liuhang, huyongxiang, shangguofei
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Hebei GEO University
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| Abstract: |
| 【Objective】From the perspective of water footprint, the ecological performance of county land consolidation in North China Plain was evaluated.【Method】Based on GROPWAT, calculate the blue, green and gray water footprints before and after land consolidation, and build an ecological performance evaluation system of land consolidation with four specific remediation projects as the criteria layer and a total of 11 indicators. The ecological performance of 16 villages and towns in Jing County was evaluated by comprehensive weighting method.【Results】 After the implementation of land consolidation, the blue, green and gray water footprints of Jing County have increased, among which the blue and gray water footprints have increased significantly; The overall ecological performance of Jing County is at a good level, with 8 towns of good grade and above and 13 towns of medium grade and above. The main obstacle factors hindering the improvement of ecological performance in Jing County are: the increase rate of newly added irrigated land, the hardening rate of newly added roads, the increase rate of drainage and irrigation density, the increase rate of dryland water conservancy degree and the increase rate of biological abundance index. The main obstacles are water conservancy obstacles and leveling obstacles, and the secondary obstacles are road obstacles and ecological obstacles. 【conclusion】Through the implementation of land consolidation project, the overall ecological benefit of Jing County has been effectively improved, but there is a negative impact on water resources. From the perspective of water footprint, the ecological performance evaluation model of county land regulation in north china plain can provide theoretical reference and feasible paradigm for land regulation projects in similar regions. |
| Key words: Land consolidation; water footprint; ecological performance; comprehensive empowerment method. |
