荒漠化
归一化差异植被指数
植被(病理学)
自然地理学
环境科学
降水
反照率(炼金术)
地理
干旱
黄土高原
恢复生态学
生态学
索引(排版)
环境资源管理
气候变化
土壤科学
气象学
万维网
艺术
病理
生物
医学
表演艺术
艺术史
计算机科学
作者
Zhimin Xu,Ling Han,Liangzhi Li,Zhong-Rui Bai
标识
DOI:10.1080/10106049.2023.2290175
摘要
Land desertification poses a severe global ecological threat. Loess Plateau, a typical region, was extensively studied. This study conducted a fitting analysis between the Vegetation Index: Enhanced Vegetation Index (EVI), kernel Normalized Difference Vegetation Index (kNDVI), Normalized Difference Vegetation Index (NDVI) and Albedo. A holistic analytical methodology was established, encompassing desertification evaluation, spatiotemporal changes, intensity, driving mechanisms, and management zoning. The results indicate that NDVI and albedo exhibit the best fit with an R2 value of 0.72. Desertification primarily occurred in the northwest, displaying significant fluctuation. Climatic factors and human activities were the main drivers of Desertification Difference Index (DDI). Precipitation promoted DDI, while temperature inhibited it, and human activities primarily play a promoting role. Furthermore, management zones were delineated, encompassing ecological sensitive areas requiring urgent land protection, ecological restoration areas necessitating land management and restoration projects, ecological improvement areas and ecological stability areas aiming to maintain the existing ecological balance while concurrently strengthening monitoring.
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