环境科学研究2025，Vol.38Issue(1) ：139-150.DOI:10.13198/j.issn.1001-6929.2024.10.03

科尔沁草原生态功能区防风固沙功能时空变化及驱动因素分析

Spatio-Temporal Variations and Driving Factors of Sand Fixation and Windbreaks in the Horqin Grassland Ecological Zone

邵国媚 乔琴 张文婷 高馨婷 雷硕 林震宇 张梅娟 张泽乾 韩永伟
环境科学研究2025，Vol.38Issue(1) ：139-150.DOI:10.13198/j.issn.1001-6929.2024.10.03
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  • 维普
  • 万方数据

科尔沁草原生态功能区防风固沙功能时空变化及驱动因素分析

Spatio-Temporal Variations and Driving Factors of Sand Fixation and Windbreaks in the Horqin Grassland Ecological Zone

邵国媚 1乔琴 1张文婷 1高馨婷 2雷硕 2林震宇 3张梅娟 1张泽乾 1韩永伟1
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作者信息

  • 1. 中国环境科学研究院生态文明中心,北京 100012
  • 2. 中国环境科学研究院生态研究所,北京 100012
  • 3. 中国环境科学研究院生态文明中心,北京 100012;兰州大学生态学院,甘肃 兰州 730000
  • 折叠

摘要

科尔沁草原生态功能区属于防风固沙型国家重点生态功能区,分析其防风固沙功能时空变化及驱动因素对于保障京津冀地区乃至全国的生态环境安全具有重要意义.本研究基于 RWEQ(修正风蚀方程)模型评估了科尔沁草原生态功能区2000—2020 年防风固沙功能的时空变化,同时运用偏导数方法分析了气候变化和人类活动对防风固沙功能变化的影响.结果表明:①2000—2020 年科尔沁草原生态功能区防风固沙量整体呈显著上升趋势(P＜0.05),年均防风固沙量为 3.71×108 t,其中,最低值出现在 2001 年,为 3.10×108 t,2018 年达到最大值,为 4.32×108 t,相较于 2001 年增加了 39.35%.②从空间上来看,科尔沁草原生态功能区防风固沙量高值区主要分布于研究区中部和南部,低值区主要分布于研究区北部;防风固沙量呈增加趋势的区域约占研究区总面积的 74.23%,呈减少趋势的区域占 25.76%,主要分布于巴林右旗等地区.③2000—2020 年科尔沁草原生态功能区防风固沙量变化受气候变化影响较大,导致防风固沙量增加的区域占 49.08%;人类活动导致防风固沙量增加的区域占24.37%,主要分布在扎鲁特旗北部等地区.研究显示,气候变化对防风固沙功能影响较大,应继续深入研究气候变化影响防风固沙功能的机制,科学制定防沙治沙措施,进一步提高生态系统适应气候变化的能力.

Abstract

The Horqin Grassland Ecological Function Zone belongs to the National Key Ecological Function Zone for sand fixation and windbreak.Analyzing the spatio-temporal changes and driving factors of its sand fixation and windbreak functions is of great significance for ensuring the ecological environment security of the Beijing-Tianjin-Hebei region and the rest of the country.This study evaluated the spatio-temporal changes of sand fixation and windbreak functions in the Horqin Grassland Ecological Function Zone from 2000 to 2020 based on the RWEQ model.At the same time,the method of partial derivatives was used to assess the impacts of climate change and human activities on the changes of the sand fixation and windbreak functions.The results show that:(1)From 2000 to 2020,the volume of sand fixation and windbreak function in the Horqin Grassland Ecological Function Zone showed a significantly upward trend overall(P＜0.05),with an average annual increase of 3.71×108 t.The lowest value occurred in 2001,while the highest was reached in 2018,at 4.32×108 t,representing a 39.35%increase compared to 2001.(2)From a spatial perspective,the high-value areas for sand fixation and windbreak function were mainly concentrated in the central and southern parts of the study area,while low values were mainly distributed in the northern part.The area with an increasing trend in sand fixation accounts for approximately 74.23%of the total study area,while the area with a decreasing trend accounts for 25.76%,particularly in areas like Balin Right Banner.(3)From 2000 to 2020,climate change significantly influenced the volume of sand fixation and windbreak function,with areas showing an increase in sand fixation accounting for 49.08%.The area where the volume of sand fixation and windbreak increased due to human activities accounted for 24.37%,particularly in the northern part of Jarud Banner and surrounding regions.The study highlights that climate change has a significant impact on sand fixation and windbreak functions.Further in-depth research is needed to explore the mechanisms through which climate change affects these functions,and scientific measures aimed at enhancing ecosystem resilience to climate change.

关键词

防风固沙功能/气候变化/驱动因素/贡献分析/重点生态功能区

Key words

sand fixation and windbreak function/climate change/driving factors/contribution analysis/key ecological function zones

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出版年

2025
环境科学研究
中国环境科学研究院

环境科学研究

CSTPCDCSCD北大核心
影响因子：1.775
ISSN：1001-6929
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