隆子县土地利用多样化及其聚集度分析

Analysis of Land Use Diversification and Its Aggregation in Longzi County

开展土地利用多样化与聚集度的分析对揭示区域土地利用空间指向及其合理性具有重要意义。采用土地利用多样化、土地聚集度、土地利用程度等指数,对西藏南部的隆子县及各乡镇的土地利用进行了多样化及其聚集度分析。结果表明:(1)隆子镇土地利用多样化最低但其土地利用程度最高,准巴乡土地利用多样化最高;(2)玉麦乡的土地利用聚集度最高,雪萨乡次之;准巴乡的土地利用聚集度最低。耕地、建设用地、水域、草地在隆子镇聚集度最高,该镇区位优势较强。林地与未利用土地分别在玉麦乡、扎日乡聚集度最高;(3)隆子县土地利用空间差异显著,土地利用多样化与聚集度成反比关系,土地利用多样化高的区域,聚集度越低,土地利用类型越均匀。

It is of great significance to analyze the diversity and aggregation of land use to reveal the spatial direction and rationality of regional land use.The diversification and aggregation degree of land use in Longzi county and other towns were analyzed by using indices of land use diversification,land aggregation degree,etc.The results showed that:(1)Longzi town had the lowest diversity but the highest degree of land use diversification,and Zhunba township had the highest degree of land use diversification.(2)Yumai township has the highest land use concentration,followed by Xuesha township.Zhunba township has the lowest land use concentration.Farmland,construction land,water area and grassland are the most concentrated in Longzi town,and the town has a strong geographical advantage.Forestland and unused land were the highest in Yumai township and Zari township respectively.(3)Longzi county has a significant difference in land use space.The land use diversification is inversely proportional to the degree of aggregation.In the region with high diversity,the lower the degree of aggregation is,the more uniform the land use type is.