干旱区生态环境知识资源中心(Arid): Spatiotemporal Evolution and Driving Forces of Vegetation Cover in the Urumqi River Basin

Arid

DOI	10.3390/ijerph192215323
	Spatiotemporal Evolution and Driving Forces of Vegetation Cover in the Urumqi River Basin
	Mamattursun, Azimatjan; Yang, Han; Ablikim, Kamila; Obulhasan, Nurbiya
通讯作者	Yang, H
来源期刊	INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
EISSN	1660-4601
出版年	2022
卷号	19 期号:22
英文摘要	It is important to determine long-term changes in vegetation cover, and the associated driving forces, to better understand the natural and human-induced factors affecting vegetation growth. We calculated the fractional vegetation coverage (FVC) of the Urumqi River basin and selected seven natural factors (the clay and sand contents of surface soils, elevation, aspect, slope, precipitation and temperature) and one human factor (land use type). We then used the Sen-Man-Kendall method to calculate the changing trend of the FVC from 2000 to 2020. We used the optimal parameters-based geographical detector (OPGD) model to quantitatively analyze the influence of each factor on the change in vegetation coverage in the basin. The FVC of the Urumqi River basin fluctuated from 2000 to 2020, with average values between 0.22 and 0.33. The areas with no and low vegetation coverage accounted for two-thirds of the total area, whereas the areas with a medium, medium-high and high FVC accounted for one-third of the total area. The upper reaches of the river basin are glacial and forest areas with no vegetation coverage and a high FVC. The middle reaches are concentrated in areas of urban construction with a medium FVC. The lower reaches are in unstable farmland with a medium and high FVC and deserts with a low FVC and no vegetation. From the perspective of the change trend, the areas with an improved FVC accounted for 62.54% of the basin, stable areas accounted for 5.66% and degraded areas accounted for 31.8%. The FVC showed an increasing trend in the study area. The improvement was mainly in the areas of urban construction and desert. Degradation occurred in the high-elevation areas, whereas the transitional zone was unchanged. The analysis of driving forces showed that the human factor explained more of the changes in the FVC than the natural factors in the order: land use type (0.244) > temperature (0.216) > elevation (0.205) > soil clay content (0.172) > precipitation (0.163) > soil sand content (0.138) > slope (0.059) > aspect (0.014). Apart from aspect, the explanatory power (Q value) of the interaction of each factor was higher than that of the single factor. Risk detection showed that each factor had an interval in which the change in the FVC was inhibited or promoted. The optimum elevation interval of the study area was 1300-2700 m and the greatest inhibition of the FVC was seen above 3540 m. Too much or too little precipitation inhibited vegetation coverage.
英文关键词	fractional vegetation coverage trend analysis OPGD arid area Urumqi River basin
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000887222700001
WOS关键词	SHUTTLE RADAR TOPOGRAPHY ; ARID REGION ; GEOGRAPHICAL DETECTOR ; NORTHWEST CHINA ; CLIMATE-CHANGE ; MISSION SRTM ; WET SEDGE ; NDVI ; XINJIANG ; AREA
WOS类目	Environmental Sciences ; Public, Environmental & Occupational Health
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393173
推荐引用方式 GB/T 7714	Mamattursun, Azimatjan,Yang, Han,Ablikim, Kamila,et al. Spatiotemporal Evolution and Driving Forces of Vegetation Cover in the Urumqi River Basin[J],2022,19(22).
APA	Mamattursun, Azimatjan,Yang, Han,Ablikim, Kamila,&Obulhasan, Nurbiya.(2022).Spatiotemporal Evolution and Driving Forces of Vegetation Cover in the Urumqi River Basin.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,19(22).
MLA	Mamattursun, Azimatjan,et al."Spatiotemporal Evolution and Driving Forces of Vegetation Cover in the Urumqi River Basin".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 19.22(2022).