The impact of the armed conflict in Afghanistan on vegetation dynamics

被引:13
|
作者
Zhang, Zhijie [1 ,2 ,3 ]
Ding, Jingyi [1 ,2 ]
Zhao, Wenwu [1 ,2 ]
Liu, Yue [1 ,2 ]
Pereira, Paulo [4 ]
机构
[1] Beijing Normal Univ, State Key Lab Earth Surface Proc & Ecol, Fac Geog Sci, Beijing 100875, Peoples R China
[2] Beijing Normal Univ, Inst Land Surface Syst & Sustainable Dev, Fac Geog Sci, Beijing 100875, Peoples R China
[3] Beijing Normal Univ Zhuhai, Zhuhai Branch, State Key Lab Earth Surface Proc & Resource Ecol, Adv Inst Nat Sci, Zhuhai 519087, Peoples R China
[4] Mykolas Romeris Univ, Environm Management Ctr, Ateities G 20, LT-08303 Vilnius, Lithuania
关键词
Armed conflicts; Environment; Afghanistan; Vegetation dynamics; Greening; Propensity score matching; 1991; GULF-WAR; PROPENSITY SCORE; LAND; BIODIVERSITY; CLIMATE; PERFORMANCE; ENVIRONMENT; ECOSYSTEMS; CHINA; EARTH;
D O I
10.1016/j.scitotenv.2022.159138
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Armed conflicts disturb the environment and impair land productivity. Afghanistan has been submerged in conflict for >20 years, affecting the environment dramatically. In this study, we used the Normalised difference vegetation index (NDVI) to investigate vegetation's spatial and temporal changes and the potential underpinned mechanisms. We found a 16.44 % increase in NDVI in Afghanistan from 2000 to 2021. The average NDVI growth rate was 11.33 % (within 5 km distance from the armed conflict), higher in the conflict group than in the non-conflict group. People migration may have reduced the human impacts on the environment. The relative contribution of armed conflict to vegetation growth was 3.17 %. Our results showed that the vegetation in Afghanistan increased, confirming the idea that depop-ulation increase greenness. Despite the reduced variance explained by the war (R2 values around 0.3), our study provides empirical evidence on the linkages between the war and vegetation change in Afghanistan.
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页数:10
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