延龙图地区城市土地生态适宜性评价

doi:10.11849/zrzyxb.20160486

摘要/Abstract

摘要： 土地是人类生存、发展的物质基础,但是快速的城市化和城镇化每年使得很多生态用地转化为建设用地,结果导致一系列严峻的生态环境问题。在生态文明建设背景下,城市发展需合理规划以减少城市发展对生态环境造成的影响,而城市合理规划的前提是认清土地生态适宜性及其等级。鉴于此,论文从自然地理、社会经济、生态限制三方面选取了12个评价因子构建阻力评价体系,运用“阻力模型”和“最小累积阻力模型”相结合的方法,并借助GIS空间分析技术对延龙图地区城市土地生态适宜性及其等级进行了评价。结果表明：延龙图地区城市土地生态适宜性可分为重点建设区（538.55 km²）、优化建设区（743.53 km²）、限制建设区（1 887.46 km²）和禁止建设区（1 919.16 km²）。论文明确各区空间分布并提出相对应的发展建议,以期为延龙图地区城市土地规划布局提供理论、技术、决策支撑与参考。

关键词: 生态适宜性, 延龙图地区, 最小累积阻力模型, 土地

Abstract: Land is the material basis for the survival and development of human beings. However, the rapid urbanization turns a lot of ecological land into construction land every year, resulting in a series of serious ecological environmental problems. Under the background of the ecological civilization construction, the urban development needs to be reasonably planned in order to reduce the influence of urban development on the ecological environment. The premise of reasonable urban planning is to recognize the land ecological suitability and its grade. In view of this, this paper took the Yanji-Longjing-Tumen region in Yanbian Korean Autonomous Prefecture of Jilin Province as the research object and evaluated the urban land ecological suitability in this region. The Yanji-Longjing-Tumen region includes Yanji City, Longjing City and Tumen city, and the whole research scope was 5 088.7 km². First, this paper built the resistance evaluation system which included twelve factors selected from three aspects of natural geography, socio-economy and ecological constraints. Specifically, they included three factors of natural geography, five factors of social economy and four factors of ecological constraints. Then, by a series of calculations, the comprehensive resistance value and the minimum cumulative resistance value of two types of expansion were calculated and classified. This paper evaluated the land ecological suitability and graded it in Yanji-Longjing-Tumen region by using an approach combining the “Resistance Model” and “Minimum Cumulative Resistance Model” with the spatial analysis technology in GIS. Finally, the results showed that, the urban land ecological suitability of Yanji-Longjing-Tumen region could be divided into the key construction area, the optimized construction area, the restricted construction area and the forbidden zone according to the grade of ecological suitability. Their respective area was 538.55, 743.53, 1 887.46 and 1 919.16 km², and their respective proportion was 10.58%, 14.61%, 37.09% and 37.71%. Moreover, in the area of 5 088.7 km²of Yanji-Longjing-Tumen region, the area of land suitable for ecological and suitable for construction respectively accounted for 74.81% and 25.19%. This paper disclosed the space distribution of urban land in each ecological suitability grade, and put forward some suggestions correspondingly in order to provide the theory, technology, decision-making support and reference for the urban land planning in Yanji-Longjing-Tumen region.

Key words: ecological suitability, minimum cumulative resistance model, Yanji-Longjing-Tumen region, land

中图分类号:

F293.2

赵小娜, 宫雪, 田丰昊, 李明玉. 延龙图地区城市土地生态适宜性评价[J]. 自然资源学报, 2017, 32(5): 778-787.

ZHAO Xiao-na, GONG Xue, TIAN Feng-hao, LI Ming-yu. The Urban Land Ecological Suitability Evaluation of Yanji-Longjing-Tumen Region[J]. JOURNAL OF NATURAL RESOURCES, 2017, 32(5): 778-787.

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