Dynamic changes on desertification risk assessment and driving force analysis in Turpan City
Received date: 2021-06-18
Revised date: 2021-10-17
Online published: 2022-04-02
Desertification is one of the most severe ecological problems. The impact of desertification on ecology, production, and life cannot be ignored. Thus, establishing a desertification risk assessment system is essential to quantify the degree of desertification risk and control desertification risk, and achieve regional sustainable development. Based on 3S technology, this paper selects evaluation indicators from the human, underlying surface, and climatic factors to construct a desertification risk assessment system. It assesses and analyzes the desertification risk level of Turpan City, Xinjiang, China from 2000 to 2018. Additionally, the driving forces using geographic detectors are analyzed. The results are as follows. (1) The desertification risk area of Turpan City has significantly changed from 2000 to 2018, showing a trend of local deterioration and overall improvement. The desertification risk in the eastern region is higher than that in the western region. (2) The extremely high-risk area increased in Shanshan County during the study period. The extremely high-risk area is under control in Toksun County, which is significantly reduced. The extremely low-risk area in the central Gaochang District is reduced, and the low-risk distribution is relatively stable. (3) In the driving force analysis, the six index factors of sandstorm days, primary industry GDP, precipitation, habitat quality index, livestock quantity, and average temperature have a greater impact on the changes in desertification risk in Turpan City from 2000 to 2018. In the interaction between the two indicators, the coupling of sandstorm days with primary industry GDP, precipitation, habitat quality index, average temperature, and livestock quantity is the main factor promoting the desertification risk in Turpan City.
Key words: desertification risk; dynamic changes; driving force analysis; Turpan City
Guili SUN , Xue LI , Yanyan LIU , Jiaxiang ZHENG , Jing MA , Yajun RAN . Dynamic changes on desertification risk assessment and driving force analysis in Turpan City[J]. Arid Land Geography, 2022 , 45(2) : 401 -412 . DOI: 10.12118/j.issn.1000–6060.2021.282
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