文献类型：期刊文献

中文题名：基于FCD模型的1991—2022年鄂尔多斯市植被覆盖度时空变化分析

英文题名：Spatio-temporal variation of vegetation coverage in Ordos during 1991~2022:A FCD model-based analysis

作者：李帅[1] 任昱[2] 高君亮[1] 刘湘杰[1] 段瑞兵[1] 徐光甫[1] 石善宇[1]

第一作者：李帅

机构：[1]国家林业草原防沙治沙工程技术研究中心/中国林业科学研究院沙漠林业实验中心,磴口015200;[2]鄂尔多斯生态环境职业学院,鄂尔多斯017010

年份：2025

卷号：39

期号：8

起止页码：175-187

中文期刊名：干旱区资源与环境

外文期刊名：Journal of Arid Land Resources and Environment

收录：;北大核心:【北大核心2023】；

基金：鄂尔多斯市科技重大专项课题(2022EEDSKJZDZX020-3);国家重点研发计划子课题(2022YFF130320203)资助

语种：中文

中文关键词：FCD模型;植被覆盖度;多元残差分析;气候变化;人为活动;鄂尔多斯市

外文关键词：FCD model;vegetation coverage;multiple residual regression analysis;climate change;human activities;Ordos

分类号：Q948

摘要：准确评估区域植被覆盖度是生态脆弱区生态保护与修复的关键。文中基于FCD(Forest Canopy Density Mapping Model)模型构建综合植被指数,对1991—2022年的鄂尔多斯市植被覆盖度进行估算,运用Theil-Sen趋势分析和Mann-Kendall显著性检验探究其时空变化特征,采用多元回归残差分析量化气候变化和人为活动的相对贡献。结果表明:1)研究区植被覆盖度整体提升,中、高覆盖区及极高覆盖区的面积持续扩大,显著提升区面积占比达62.53%。2)气候变化与人类活动共同驱动植被覆盖度变化,其中人为活动是近32年植被覆盖度变化的主导因素。3)两类驱动因素对植被覆盖度变化驱动呈现明显的时空异质性。4)未来应根据植被覆盖度空间分异和时空演变特征,实施差异化的生态保护与修复策略。文中研究可为区域生态保护与修复措施的优化与评估提供科学依据,也可为类似生态脆弱区的植被监测与保护提供参考。
Accurately assessing regional vegetation coverage is crucial for ecological protection and restoration in ecologically fragile areas.The FCD(Forest Canopy Density Mapping)model was used to construct a comprehensive vegetation index for estimating vegetation coverage in Ordos.Spatio-temporal variations of vegetation coverage were analyzed using Theil-Sen median trend analysis and the Mann-Kendall test,while multiple regression residual analysis was applied to quantify the relative contributions of climate change and human activities.The results demonstrate that:1)The vegetation coverage in Ordos had generally increased,the areas with medium,higher,and the highest coverage were continuously expanding,and the significantly improved regions accounted for 62.53%.2)Both climate change and human activities jointly drove the vegetation coverage changes,with human activities being the dominant factor over the past 32 years.3)The two driving forces exhibited distinct spatio-temporal heterogeneity in their influence on vegetation coverage.4)In the future,ecological protection and restoration strategies should be implemented based on the spatial patterns and evolution characteristics of vegetation coverage.This study provides a scientific basis for optimizing and evaluating regional ecological protection and restoration measures and can serve as a reference for vegetation monitoring and protection in similar ecologically fragile areas.