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中国沙漠 ›› 2023, Vol. 43 ›› Issue (2): 139-149.DOI: 10.7522/j.issn.1000-694X.2022.00102

• • 上一篇    

黑河流域生态系统服务的地形梯度效应及生态分区

杜可心1(), 张福平1(), 冯起2, 魏永芬3, 杨嘉炜1   

  1. 1.陕西师范大学 地理科学与旅游学院,陕西 西安 710119
    2.中国科学院西北生态环境资源研究院 内陆河流域生态水文重点实验室,甘肃 兰州 730000
    3.日本国立岐阜大学 流域圈科学研究中心,日本 岐阜 501-1193
  • 收稿日期:2022-06-09 修回日期:2022-08-12 出版日期:2023-03-20 发布日期:2023-04-12
  • 通讯作者: 张福平
  • 作者简介:张福平(E-mail: Zhang_fuping@163.com
    杜可心(1999—),女,河南济源人,硕士研究生,研究方向为资源环境遥感。E-mail: dukexina@163.com
  • 基金资助:
    教育部人文社会科学基金项目(21YJAZH110);陕西师范大学“一带一路”专项科研项目(22YDYLZ011);国家自然科学基金项目(52179026);国家重点研发计划项目(2022YFF1302600)

Topographic gradient effect and ecological zoning of ecosystem services in Heihe River Basin

Kexin Du1(), Fuping Zhang1(), Qi Feng2, Yongfen Wei3, Jiawei Yang1   

  1. 1.School of Geography and Tourism,Shaanxi Normal University,Xi'an 710119,China
    2.Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    3.River Basin Research Center,Gifu University,Gifu 501-1193,Japan
  • Received:2022-06-09 Revised:2022-08-12 Online:2023-03-20 Published:2023-04-12
  • Contact: Fuping Zhang

摘要:

黑河流域是中国西北地区生态安全重要屏障,厘清该地区生态系统服务的梯度效应对制定差异化生态保护政策具有重要意义。基于InVEST模型和CASA模型等方法,利用多源遥感数据量化2018年黑河流域典型生态系统服务,结合海拔、坡度、地形起伏度和地形位指数因子分析各生态系统服务的梯度效应,根据地形分布指数划分生态分区。结果表明:(1)黑河流域产水、土壤保持、植被固碳和食物供给服务空间分布差异明显,高值区在上游祁连山区,低值区在下游荒漠区。(2)各生态系统服务在各地形梯度上存在明显层级分布,总体上随地形梯度等级的提升而呈先增加后下降的趋势。(3)流域多重生态系统服务重要区空间分布差异明显,生态系统服务重要性随着地形梯度等级的提升而提升。(4)基于地形分异规律,黑河流域可划分为核心生态保护区、山地生态提升区、可持续发展区和生态防护治理区。

关键词: 生态系统服务, 地形梯度, 生态分区, 黑河流域

Abstract:

Heihe River Basin is an important barrier for ecological security in Northwest China. It is of great significance to clarify the gradient effect of ecosystem services in this region for formulating differentiated ecological protection policies. Based on the methods of InVEST model and CASA model, this study quantified ecosystem services by using multi-source remote sensing data in 2018 in Heihe River Basin, and then analyzed gradient effects of ecosystem services from four aspects of elevation, slope, relief amplitude and terrain index, divided ecological regions according to the topography distribution index at last. The results shows that: (1) The space distributions of water production, soil conservation, vegetation carbon sequestration and food supply are obviously different in Heihe River Basin, high value areas mainly in the upstream, low value areas widely distributed in the downstream. (2) The ecosystem services exist obviously hierarchy distribution on various landform gradient, overall have the trend of increasing first and then decreasing with the terrain gradient levels increase. (3) The distributions of multiple ecosystem services important zones are different, and overall the importance of ecosystem services zones are increasing with the increase of terrain gradient levels. (4) Based on the terrain distribution rules, Heihe River Basin can be divided into area of core ecological reserve, area of mountain ecological improvement, area of sustainable development and ecological protection area.

Key words: ecosystem services, topographic gradient, ecological zoning, Heihe River Basin

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