单 位：
中国地质大学(北京)信息工程学院;山东建筑大学管理工程学院
关键词：
耕地质量评价;空间自相关;空间集聚;矩阵组合法;基本农田;济南市
摘 要：
综合考虑耕地的自然质量、耕作条件、形态、空间分布等,以济南市为研究区,从自然禀赋、区位条件和稳定性3个方面选取11个指标,构建耕地质量综合评价指标体系,在耕地质量综合评价的基础上,采用局部空间自相关法定量刻画耕地质量的空间集聚格局特征,采用矩阵组合法进一步将耕地质量等级和空间集聚格局类型两两组合,综合确定基本农田划定类型。研究表明,济南市耕地区位条件较好,且区域差异最小,耕地稳定性和自然禀赋相对较差。济南市耕地质量以高和较高为主,二者分别占济南市耕地总面积的35. 12%和22. 67%,主要分布在济南市北部商河、济阳和章丘北部。耕地质量低等级的耕地面积最少,为475. 98 km~2,所占比例为11. 98%,主要分布在历城和长清。济南市耕地划分为优先划入型、适宜划入型和整治调控型3种类型。济阳、商河、章丘北部和平阴东南部的耕地质量高、集聚特征显著,应作为优先划入型,该类型耕地最多,面积为2 121. 23 km~2,占济南市耕地总面积的53. 38%;适宜划入型耕地质量也较高,并且多分布在优先划入型周边,对优先划入型耕地具有保护和缓冲作用,应与优先划入型耕地一起作为基本农田,以提高优质基本农田的集聚程度;整治调控型耕地面积为988. 98 km~2,占济南市耕地总面积的24. 89%,主要分布在中心城区和南部山区,该类型耕地质量低、集聚程度不高,开发利用时应注意生态环境保护,必要时可通过土地整治提高质量和集聚程度。
译 名：
Prime Cropland Assignment Based on Cultivated Land Quality Evaluation and Spatial Cluster Pattern
作 者：
DONG Guanglong;ZHAO Xuan;LIU Jinhua;ZHENG Xinqi;School of Management Engineering,Shandong Jianzhu University;School of Information Engineering,China University of Geosciences (Beijing);
关键词：
quality evaluation of cultivated land;;spatial autocorrelation;;spatial cluster;;matrix grouping method;;prime cropland;;Ji'nan City
摘 要：
Prime cropland construction is helpful for the protection of cultivated land and national food security. Most previous studies were focused on the natural quality of cultivated land,while the locational condition,stability and spatial agglomeration pattern was far from totally understood which reduced the rationality and resulted in frequently adjustment of prime cropland, and also could restrict the development space of urban and rural. A comprehensive evaluation indicator system of cultivated land was constructed by selecting 11 indicators from the aspects of natural condition,locational condition and stability. Based on the evaluation of cultivated land,the local indicators of spatial autocorrelation method was applied to identify the spatial agglomeration pattern of cultivated land quality. Furthermore,the matrix grouping method was applied to classify the type of prime cropland. The score of location condition of cultivated land was higher than that of natural condition and stability. The high quality and relative high quality were the dominant type in Ji'nan,which occupied 35. 12% and 22. 67% respectively and mainly distributed in the north of Ji'nan,such as Shanghe,Jiyang and Zhangqiu. The area of the low-quality cultivated land was only 475. 98 km~2,accounting for 11. 98% and mainly located in Licheng and Changqing. Consequently,the cultivated land in Ji 'nan was classified into three types,which was priority type,suitable type and reserve type. The cultivated land distributed in Jiyang,Shanghe,north of Zhangqiu,southeast of Pingyin had high quality and significant cluster pattern which were classified into priority type. The cultivated land area of priority type was 2 121. 23 km~2,accounting for 53. 38% of the total cultivated land area of Ji'nan. The quality of suitable type was also high,and most were distributed around the priority type. Besides,the suitable type had a role of protection and buffering for the priority type. Thus,it should be classified into prime cropland together with the priority type in order to improve the concentration of high-quality prime cropland. The area of the reserve type was the least as988. 98 km~2. It was mainly distributed in downtown and the southern mountains. The quality and concentration were relative lower. The development and utilization of reserve type should pay attention to the protection of the ecological environment.
