四川省少数民族自治州土地利用结构的计量地理分析

Analysis on land use structure in the ethnic autonomous prefectures of Sichuan province based on quantitative geography model

为四川省少数民族自治州土地资源的高效、合理、可持续利用提供数据参考。基于第二次土地调查数据,运用计量地理模型对该区域所辖各县(市)的土地利用结构进行定量分析。结果表明:主体位于川西南山地区的凉山州土地类型多样化指数、土地利用程度指数显著高于同处川西北高原山地区的阿坝州、甘孜州,其耕地资源也更为富足,州府西昌市耕作业发展水平和城镇化发展水平在"三州"中一枝独秀。地广人稀的阿坝州和甘孜州草地区位优势突出。针对各州土地利用结构特征,提出将土地的生态环境调节功能和生物支持功能作为阿坝州和甘孜州土地的主体功能、将凉山州安宁河谷平原建设成为优质基本农田示范区和耕地后备资源开发基地等土地资源可持续利用措施。

In order to provide reference data for efficient and rational and sustainable utilization of land resource in the ethnic autonomous prefectures of Sichuan province,the structure of land use in the ethnic autonomous prefectures and administrative areas was analyzed by the quantitative geography model based on the second land survey data. The results showed,the diversity index and degree index of land use of Liangshan prefecture are much higher than those of Aba prefecture and Ganzi prefecture,the cultivated land resource of Liangshan prefecture is more abundant than that of Aba prefecture and Ganzi prefecture,Xichang is prefectural capital city of Liangshan prefecture,the development level of urbanization and farming is the highest in the ethnic autonomous prefectures. Aba prefecture and Ganzi prefecture are scarcely populated areas,the location advantage of grassland is significant. Aiming at the characteristics of land use structure,some sustainable utilization measures of land resource were put forward. The function of environmental regulation and biological supporting of land should be subjective function in Aba prefecture and Ganzi prefecture,Anning river valley plain should be built into the demonstration area of basic farmland and the development base of reserve cultivated land resources.