[1]ZHAO Xiaoqing,PU Junwei,RAO Hui,et al.Development Suitability and Zoning of Urban-Rural Construction Land in Typical Karst Mountain Areas in Yunnan[J].Research of Soil and Water Conservation,2020,27(01):240-248.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 01
Page number:
240-248
Column:
Public date:
2020-02-20
- Title:
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Development Suitability and Zoning of Urban-Rural Construction Land in Typical Karst Mountain Areas in Yunnan
- Author(s):
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ZHAO Xiaoqing1, PU Junwei1,2, RAO Hui3, LI Sinan1, LU Feifei1, GU Zexian4
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(1.School of Resource Environment & Earth Science, Yunnan University, Kunming 650500, China; 2.Institute of International Rivers & Eco-security, Yunnan University, Kunming 650500, China; 3.Yunnan Gaoyang Technology Co., Ltd., Kunming 650100, China; 4.Forestry Bureau of Nujiang Lisu Autonomous Prefecture, Lushui, Yunnan 673100, China)
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- Keywords:
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karst mountain areas; urban-rural construction land; driving factors; suitability evaluation; development zone of construction land
- CLC:
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F301.2; TU984.2
- DOI:
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- Abstract:
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The evaluation on suitability of urban-rural construction land is the scientific basis for ensuring the coordinated development between human and the environment. Taking Guangnan County as a typical example and selecting the important factors of construction development to establish the index system, we used the ‘barrel theory’ and ‘anti-barrel theory’ to carry out the evaluation on suitability of urban-rural construction land and divide the different development zones. The results show that:(1)slope, geological disaster, active fault, karst collapse, mining, ecological protection zone, basic farmlands, land types, geographical and traffic location are important factors determining the suitability of urban-rural construction land in karst mountain areas, the current land types, slope, karst collapse, ecological protection zone and basic farmlands are the main factors restricting the expansion of urban-rural construction, while the traffic location is the main factor to improve the suitability;(2)the area of unsuitable region is the largest in Guangnan County, accounting for 63.37% of the total area of the county; the potential suitable region and the suitable region are in the middle, accounting for 21.33% and 10.38%, respectively; the most suitable region is the smallest, only accounting for 4.91%; the unsuitable regions mainly distribute in the areas except the northern and central north of the county; the potential suitable regions mainly distribute in the north, central north and southwest area of the county; the most suitable regions and suitable regions mainly distribute near the towns and roads;(3)based on the result of suitability evaluation, the karst mountain areas are divided into important development zone, optimizing development zone, regulation zone, ecological protection zone and agricultural security zone, and some developement suggestions are put forward for each zone.