景观格局视角下平山县耕地规模化整理潜力评价

发布时间：2018-11-20 04:51

【摘要】：从地形条件和土地景观格局两方面选取高程、地形起伏度、斑块面积指数等8项指标构建耕地规模化整理潜力评价指标体系。以平山县为研究区,在ArcGIS空间分析功能支撑下探讨了村级间耕地规模化整理难易程度,并采用障碍诊断分析方法分析制约了耕地规模化整理的限制因素,以期为今后区域土地整理提供科学依据。结果表明:平山县村级耕地规模化整理潜力指数分布在[0.12,0.9]区间内,村级间差异较大,整体上由西北向东南依次递增;从耕地规模化整理分区结果来看,四级区的耕地面积最多(51.2%),其次为三级区(21.3%),五级区和二级区耕地面积总和与三级区相当,一级区的耕地面积最少(0.9%),分区等级越大耕地规模化整理越容易;整理由难变易时,主要障碍因素由耕地资源丰度(RI)和地形起伏度(RDLS)逐渐变为耕地聚集度(CI)和耕地资源丰度(RI)。
[Abstract]:The evaluation index system of cultivated land scale consolidation potential was constructed from two aspects of terrain condition and land landscape pattern, such as elevation, topographic fluctuation, patch area index and so on. Taking Pingshan County as the research area, the paper discusses the difficulty and ease of large-scale farmland consolidation at village level under the support of ArcGIS spatial analysis function, and uses the method of obstacle diagnosis analysis to analyze the limiting factors that restrict the large-scale consolidation of cultivated land. In order to provide scientific basis for regional land consolidation in the future. The results show that the potentiality index of large-scale consolidation of cultivated land in Pingshan County is distributed in the range of [0.120. 9], and there is a great difference among the villages, which increases gradually from northwest to southeast on the whole. According to the results of large-scale cultivated land consolidation, the cultivated land area of the fourth grade area is the highest (51.2%), the second is the third grade area (21.3%), the sum of the cultivated land area of the fifth and second grade areas is equivalent to that of the third grade area. The cultivated land area of the first grade area is the least (0.9%), the bigger the zone grade is, the easier is the scale arrangement of cultivated land. The main obstacle factors changed from cultivated land abundance (RI) and topographic fluctuation degree (RDLS) to cultivated land aggregation degree (CI) and cultivated land resource abundance (RI).
【作者单位】：河北农业大学国土资源学院;
【基金】：河北省社会科学资助项目“河北省城乡一体化进程中耕地资源安全评价及保护机制创新研究”(HB14GL040)
【分类号】：F301.24

【相似文献】