基于多源遥感的生态修复工程监测与效果评价——以五粮素海流域为例

IF 3.2 2区 环境科学与生态学 Q2 ENVIRONMENTAL STUDIES
Land Pub Date : 2023-01-28 DOI:10.3390/land12020349
Xiang Jia, Zhengxu Jin, Xiaoli Mei, Dong Wang, Ruoning Zhu, Xiaoxia Zhang, Zherui Huang, Caixia Li, Xiaoli Zhang
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引用次数: 2

摘要

对生态修复有效性的定量评估可以及时反馈修复工作,有助于准确了解修复程度,同时为优化修复方案提供科学支持。近几十年来,中国内蒙古自治区乌梁素海流域受到人类活动的影响,生态环境日益失衡。为遏制环境恶化,2018年至2020年,当地实施了“乌梁素海流域山水林田湖草生态保护修复工程”。该项目已经完成,迫切需要遥感监测来协助进行业绩评估。我们以中国乌梁素海流域生态保护修复区为研究对象,应用多源遥感影像和气象、地理基础数据等辅助数据,提取项目实施前后各评价指标的信息,并采用熵值法确定指标权重,对生态修复效果进行综合评价。结果表明,生态修复工程实施后,植被覆盖率进一步提高,沙漠治理成效明显,水土保持能力增强,生态系统更加稳定,环境较好的地区多位于中东部。共有37.86%的地区生态修复效果明显,各项指标进一步提升。在主要处理区中,乌梁素海水生态修复和生物多样性保护区的修复效果最好。随着时间的推移,修复效果将进一步突出。本研究为流域生态环境的进一步治理提供了科学参考,也可为今后类似地区的生态修复效果评价提供参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Monitoring and Effect Evaluation of an Ecological Restoration Project Using Multi-Source Remote Sensing: A Case Study of Wuliangsuhai Watershed in China
Quantitative assessment of the effectiveness of ecological restoration provides timely feedback on restoration efforts, and helps to accurately understand the extent of restoration, while providing scientific support for optimizing restoration programs. In recent decades, the Wuliangsuhai watershed in China’s Inner Mongolia Autonomous Region has been affected by anthropogenic activities, resulting in an increasingly unbalanced ecological environment. In order to curb environmental degradation, the local government implemented the “mountain, water, forest, field, lake and grass ecological protection and restoration project of the Wuliangsuhai watershed” from 2018 to 2020. The project has been completed and there is an urgent need for remote sensing monitoring to aid in performance evaluation. We took the ecological protection and restoration area of the Wuliangsuhai watershed in China as the research object, applied multi-source remote sensing imagery and auxiliary data such as meteorology and geographic basic data, extracted information of each evaluation index before and after the implementation of this project, and used the entropy value method to determine the index weights to comprehensively evaluate the ecological restoration effect. The results showed that after the implementation of the ecological restoration project, the vegetation coverage was further improved, the effectiveness of desert management was obvious, soil and water conservation capacity was strengthened, the ecosystem became more stable, and the areas with good environment were mostly located in the central and eastern parts. A total of 37.86% of the areas had obvious ecological restoration effects, and all indicators were further improved. Among the main treatment areas, the restoration effect of the Wuliangsuhai water ecological restoration and biodiversity conservation area was the best. The restoration effect will be further accentuated over time. This study provides a scientific reference for the further management of the ecological environment in the watershed and can provide a reference for the evaluation of the ecological restoration effect in similar areas in the future.
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来源期刊
Land
Land ENVIRONMENTAL STUDIES-Nature and Landscape Conservation
CiteScore
4.90
自引率
23.10%
发文量
1927
期刊介绍: Land is an international and cross-disciplinary, peer-reviewed, open access journal of land system science, landscape, soil–sediment–water systems, urban study, land–climate interactions, water–energy–land–food (WELF) nexus, biodiversity research and health nexus, land modelling and data processing, ecosystem services, and multifunctionality and sustainability etc., published monthly online by MDPI. The International Association for Landscape Ecology (IALE), European Land-use Institute (ELI), and Landscape Institute (LI) are affiliated with Land, and their members receive a discount on the article processing charge.
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