青藏高原生态系统服务驱动因素与生态保护格局构建

IF 5.4 Q1 ENVIRONMENTAL SCIENCES
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引用次数: 0

摘要

青藏高原是中国西部重要的生态安全屏障,其生态系统服务功能(ES)的变化备受关注。我们利用多元数据和模型模拟,对青藏高原生态系统服务功能进行了评估,揭示了其驱动因素,并构建了基于生态系统服务功能指数(ESI)和生态系统敏感性(ES)的生态保护格局。结果表明(1)2000-2020年QTP的ES总体为正,空间分布特征为由东南向西北递减。森林和草地是促进 ES 的主要土地利用类型。(2)与社会经济因素相比,自然因素对ESs的影响更大,其中降水、植被覆盖率(FVC)和净初级生产力(NPP)对ESs的解释力最强。(3) 合作发展区、巩固提高区和重点保护区占QTP总面积的比例分别为19%、56%和25%。合作发展区应遵循自然恢复和绿色发展的理念。CEA应优化管理体制,结合人工修复做好环境治理工作。项目管理局要严防人为活动干扰,保护冰川、积雪、冻土等自然景观的原真性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Ecosystem services driving factors and ecological conservation pattern construction, Qinghai-Tibet Plateau
Given that the Qinghai-Tibet Plateau (QTP) is an important ecological security barrier in western China, changes in its ecosystem services (ESs) have received attention. Using multivariate datas and model simulations, we evaluated the ESs of the QTP, revealed their driving factors, and constructed ecological conservation pattern based on ecosystem services index (ESI) and ecosystem sensitivity (ES). The results showed that: (1) The overall ESs of the QTP from 2000 to 2020 were positive, with a spatial distribution characteristic of decreasing from southeast to northwest. Forest and grassland were the key land use types promoting ESs. (2) Natural factors had a stronger influence on ESs than socioeconomic factors, with precipitation, FVC (Fractional Vegetation Cover) and NPP (Net Primary Productivity) had the strongest explanatory power for ESs. (3) The proportion of the collaborative development area (CDA), consolidation and enhancement area (CEA) and priority protection area (PPA) to the total area of the QTP was 19%, 56% and 25% respectively. The CDA should follow the concept of natural restoration and green development. The CEA should optimize the management system and do a good job of environmental management in combination with artificial restoration. The PPA should strictly prevent disturbances caused by human activities and protect the originality of natural landscapes such as glaciers, snow and permafrost.
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来源期刊
Environmental and Sustainability Indicators
Environmental and Sustainability Indicators Environmental Science-Environmental Science (miscellaneous)
CiteScore
7.80
自引率
2.30%
发文量
49
审稿时长
57 days
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