太行山区耕地整理适宜性评价及障碍因子诊断——以河北省涞源县为例

发布时间：2018-04-11 19:48

本文选题：耕地整理 + 适宜性评价　；参考：《中国农业资源与区划》2017年10期

【摘要】：[目的]耕地整理适宜性评价是土地整治规划的基础,可以为划定耕地整理重点区域、确定耕地整理项目和整理时序提供依据。[方法]文章以位于太行山区的涞源县为研究区域,以现状耕地图斑为评价单元,经独立性分析后选取地形坡度、表层土壤质地、灌溉保证率、耕地系数、与道路距离、与城镇中心距离、地质灾害易发性7个评价指标,运用贝叶斯概率模型计算各指标权重及未整理耕地的整理后验概率,并得到研究区未整理耕地的适宜性空间分布。同时根据改进的障碍因子诊断模型,分析了各适宜整理区的障碍因子并提出相应的整理措施。[结果](1)在影响涞源县耕地整理的各因素中,影响程度从小到大依次是表层土壤质地、与城镇中心距离、耕地系数、地形坡度、与道路距离、地质灾害易发性和灌溉保证率;(2)在涞源县未整理耕地中,高适宜整理区与较适宜整理区占未整理耕地的20.79%,可作为涞源县下一步耕地整理的选择;(3)制约涞源县全域耕地质量的障碍因子是灌溉保证率,整理过程中应根据实际情况科学寻找灌溉水源、结合地形条件采用蓄、引、提相结合的方式合理布设农田水利设施,提高水资源利用率。[结论]该文可为太行山区更科学合理地开展耕地整理项目提供依据。
[Abstract]:[objective] the suitability evaluation of cultivated land consolidation is the basis of land regulation planning, which can provide the basis for delimiting the key area of cultivated land consolidation, determining the items and timing of farmland consolidation.[methods] Laiyuan County, located in Taihang Mountain area, was used as the research area and the plot of cultivated land as evaluation unit. After independent analysis, topographic slope, surface soil texture, irrigation guarantee rate, cultivated land coefficient and distance from road were selected.By using Bayesian probability model to calculate the weights of each index and the posteriori probability of unconsolidated cultivated land, the spatial distribution of suitability of unconsolidated cultivated land in the study area was obtained.At the same time, according to the improved diagnosis model of obstacle factors, the obstacle factors of each suitable finishing area are analyzed and the corresponding finishing measures are put forward.[results] among the factors affecting cultivated land consolidation in Laiyuan County, the order of influence was the surface soil texture, the distance from the center of the town to the town, the coefficient of cultivated land, the slope of topography, the distance from road to road,Geological hazards vulnerability and Irrigation guarantee rate in Laiyuan County has not been reorganized in cultivated land,High suitable consolidation area and more suitable finishing area account for 20.79% of unconsolidated cultivated land, which can be regarded as the next choice of cultivated land consolidation in Laiyuan County.) the obstacle factor restricting the quality of cultivated land in Laiyuan County is irrigation guarantee rate.In the process of arrangement, the irrigation water sources should be scientifically searched according to the actual conditions, and the storage, introduction and lifting should be adopted in combination with the topographic conditions, and the irrigation and water conservancy facilities should be set up reasonably to improve the utilization rate of water resources.Conclusion: this article can provide the basis for carrying out the project of farmland consolidation more scientifically and reasonably in Taihang Mountain area.
【作者单位】：河北农业大学国土资源学院;河北保定生态文明研究院;河北省土地服务中心;
【基金】：国土资源部公益性行业科研专项课题“京津冀土地优化利用一体化管控关键技术集成应用示范”(201511010-09)
【分类号】：F323.211

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