深圳市土地利用结构时空分析

基于2009年与2014年深圳市土地利用变更数据,分析其土地利用结构特征及其空间布局,有利于实现区域土地合理开发和可持续利用。运用多种指标及模型从土地利用的综合程度、组合类型和各地类区位意义3个方面来分析深圳市10区土地利用结构的时空变化特征。结果表明:研究区交通用地、城镇工矿用地、耕地面积有所增加,但总体变化不大,趋势放缓,各区之间存在一定差异;组合类型上表现为整体功能较弱、类型数少,各区组合多包含城镇及工矿用地与林地,分布集中连片,主导着深圳市土地利用变化趋势;程度变化上,整体综合指数较高并有所增加,表明利用程度高且处于持续发展中,但各区之间程度高低不一;区位意义在各区域地类上表现也不尽相同且变化不大。结论:研究区域土地供需矛盾仍十分突出,人多地少态势明显,区域间土地利用结构存在明显分异规律,区域发展协调性不够,利用布局有待优化。

Temporal and Spatial Analysis of Land Use Structure in Shenzhen

Based on the land use change data of Shenzhen in 2009 and 2014 , the analysis of its land use structure and its spatial lay-out is beneficial to realize the rational and open use of regional land .The spatial and temporal characteristics of land use structure in 10 districts of Shenzhen City were analyzed by using various indexes and models from the aspects of comprehensive utilization of land use, combination type and regional significance .The results show that the area of industrial and mining land and cultivated land in the study area has increased , but the overall change is not big and the trend is slowing down .There are some differences among the dis-tricts.The overall type of structure is weak , the combination of urban areas and industrial and mining land and forest land , relatively regular and intensively distributed , led the land use change in Shenzhen City;degree of change , the overall composite index is higher and increased , indicating that the use of high and in sustainable development , but the district Between the level of different levels;re-gional significance in the regional land class performance is not the same and little change .Conclusion: The contradiction between supply and demand in the study area is still prominent , the situation is obvious , the inter -regional land use structure is obviously different, the regional development coordination is not enough , and the layout is needed to be optimized .