Spatial patterns of farmland abandonment and its impact factors in the central Three Gorges Reservoir Area Spatial patterns of farmland abandonment and its impact factors in the central Three Gorges Reservoir Area

最小化 最大化

Vol15 No.3: 631-644

TitleSpatial patterns of farmland abandonment and its impact factors in the central Three Gorges Reservoir Area

AuthorCHEN Ying-feng1,2,3; WANG Yu-kuan1,3*; FU Bin1,3*; WANG Hai-wen4; WANG Wei5

Addresses1 Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610041, China; 2 University of Chinese Academy of Sciences, Beijing 100049, China; 3 Wanzhou Station of Reservoir Eco- environment Monitoring, Chongqing 404020, China; 4 Inner Mongolia Land Surveying and Planning Institute, Hohhot 010010, China; 5 Survey & Planning Institute of State Forestry Administration, Beijing 100714, China

Corresponding authorfubin@imde.ac.cn; wangyukuan@imde.ac.cn

CitationChen YF, Wang YK, Fu B, et al. (2018) Spatial patterns of farmland abandonment and its impact factors in the central Three Gorges Reservoir Area. Journal of Mountain Science 15(3). https://doi.org/10.1007/s11629-017-4452-6

DOIhttps://doi.org/10.1007/s11629-017-4452-6

AbstractThe severe farmland abandonment phenomena in China have tremendously decreased the farmland usage efficiency and caused a series of profound ecological and social outcomes. The complexity of farmland abandonment necessitates a systematic research on its patterns and impact factors to underpin the dynamics of problem as well as potential solutions. This paper took Wanzhou district in the central part of Three Gorges Reservoir Area as an example to study the spatial distribution patterns of abandoned farmland at three scales, i.e., town, village, and plot, and analyzed the influence from labor transfer and farmland circulation. We conducted a survey on the distribution patterns of abandoned farmland via questionnaires at town and village scales, together with the modeling and interpretation of high-resolution aerial images taken by unmanned aerial vehicles at plot scale. Our research discloses a strong relationship between the distribution of abandoned farmland and the distance from population center at different scales. At either town or village scale, the abandonment proportion was recognized the highest in mid-distance areas and lowest in close-distance areas, and the per capita area of abandoned farmland increased with the distance to downtown or township. At plot scale, abandonment proportion presented exponential growth with the distance to village center, whereas the abandoned farmland was mainly distributed in the areas with distance above 500 m from the village center. Moreover, we noticed that labor transfer and farmland circulation are two important factors that influence farmland abandonment. Labor's outbound transfer distance has a positive linkage with the possibility of farmland abandonment. Finally, it is recommended that development and adoption of corresponding policies on local urbanization and farmland circulation will facilitate to alleviate farmland abandonment.

KeywordsThree Gorges Reservoir Area; Farmland abandonment; Spatial distribution pattern; Labor transfer; Cultivated farmland; Multi-scale; Unmanned aerial vehicle