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• W2904356162 abstract "In Central Asia, desertification risk is one of the main environmental and socioeconomic issues; thus, monitoring land sensitivity to desertification is an extremely urgent issue. In this study, the combination of convergence patterns and desertification risk is advanced from a technical perspective. Furthermore, the environmentally sensitive area index (ESAI) method was first utilized to monitor the risk of desertification in Central Asia. In the study, the spatial and temporal patterns of desertification risk were illustrated from 1992 to 2015 using fourteen indicators, including vegetation, climate, soil and land management quality. The ESAI spatial convergence across administrative subdivisions was explored for three time intervals: 1992–2000, 2000–2008 and 2008–2015. The results indicated that nearly 13.66% of the study area fell into the critical risk of desertification from 1992 to 2008. However, the risk of desertification has improved since 2008, with critical classifications decreasing by 19.70% in 2015. According to the mutation year detection in the ESAI, 25.89% of the pixels with mutation years from 1992 to 2000 were identified, and this value was higher than that during the other time periods. The convergence analysis revealed that the desertification risk for 1992–2000 tended to diverge with a positive convergence coefficient of 0.13 and converge over the 2000–2008 and 2008–2015 time periods with negative convergence coefficients of −0.534 and −0.268, respectively. According to the spatial convergence analysis, we found that the divergence patterns in northern Central Asia from 1992 to 2000 resulted from the effects of the Soviet Union collapse: cropland abandonment in northern Kazakhstan and rangeland abandonment in Tajikistan, Kyrgyzstan and eastern Kazakhstan. In contrast, most areas from 2000 to 2008 experienced increased sensitivity to desertification with the convergence pattern caused by decreased precipitation, especially in northern Central Asia. However, convergence patterns were found in most regions for 2008–2015 with regard to augmented precipitation, which resulted in decreased sensitivity to desertification. Moreover, the low sensitivity areas were more likely to converge under increased precipitation. In this region, the findings of our study suggested that spatial convergence and divergence acted as related predictors of climate change and human activities, respectively. Thus, the ESAI convergence analysis was considered to provide an early warning of potential desertification." @default.
• W2904356162 created "2018-12-22" @default.
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• W2904356162 date "2019-03-01" @default.
• W2904356162 modified "2023-10-11" @default.
• W2904356162 title "Monitoring land sensitivity to desertification in Central Asia: Convergence or divergence?" @default.
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• W2904356162 doi "https://doi.org/10.1016/j.scitotenv.2018.12.152" @default.
• W2904356162 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30580221" @default.
• W2904356162 hasPublicationYear "2019" @default.
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