Post-disaster spatial reconstruction from the perspective of a rural settlement niche in the upper reaches of the Minjiang River  

作　　者：LIU Yanguo WANG Li ZOU Qiang LI Jingji LU Yafeng LI Lin XU Binni WANG Lihui 

机构地区：[1]Tianfu Institute of Research and Innovation,Southwest University of Science and Technology,Chengdu 610299,China [2]Mianyang Science and Technology City Division,the National Remote Sensing Center of China,Southwest University of Science and Technology,Mianyang 621010,China [3]Institute of Mountain Hazards and Environment,Chinese Academy of Sciences,Chengdu 610299,China [4]State Key Laboratory of Geo-hazard Prevention and Geo-environment Protection(Chengdu University of Technology),Chengdu 610059,China [5]Tianfu New Area Park City Construction Bureau,Chengdu Municipal Bureau of Planning and Nature Resources,Chengdu 610218,China

出　　处：《Journal of Mountain Science》2024年第5期1630-1646,共17页山地科学学报（英文）

基　　金：financially supported by the National Natural Science Foundation of China (Grant No. 42171085);The Second Tibetan Plateau Scientific Expedition and Research Program (STEP) (Grant No.2019QZKK0307)。

摘　　要：Post-disaster recovery and reconstruction provide an effective way to reduce the disaster vulnerability of, and promote leapfrog development in, an affected area. To date, studies that have used administrative boundaries to investigate the reconstruction of settlement space have not been able to clearly define the real boundaries of land use changes or quantify the degree of response to the ‘Build-Back-Better’ initiative, and have lacked any consideration of the fourth reconstruction stage–development period(10 years). This study constructed a mountain settlement niche and analyzed the characteristics, spatial reconstruction, and drivers of rural settlements during 2009–2019 in the upper reaches of the Minjiang River, southwest China. The results showed the following:(1) Natural factors were the basis for the formation and development of mountain settlement niches. The scale of the settlement niche and its land use structure depended on the physical geography features and the ethnic farming and grazing traditions. The settlement niche provided a realistic boundary for the spatial reconstruction.(2) The layout of residential land around cropland was the common feature of the mountain settlement niche. Of all the land use types, the roads and rural residential lands showed the most change over the 10 years;13,860 residential patches increased in size and 4,742 patches were abandoned.(3) The area of orchards, planted to reconstruct the economy in the mountains, increased by nearly 2.5 times.(4) Collapses, landslides, and debris flow disasters and the ecological red line influenced the spatial reconstruction. While the main focus of post-disaster recovery is spatial reconstruction, initiatives should include economic and spiritual recovery, and should also achieve sustainable development of the region.

关 键 词：Rural settlements Spatial reconstruction Settlement niche Post-Wenchuan Earthquake Reconstruction Southwest China 

分 类 号：TU982.29[建筑科学—城市规划与设计] X4[环境科学与工程—灾害防治]