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干旱区地理 ›› 2025, Vol. 48 ›› Issue (11): 1926-1938.doi: 10.12118/j.issn.1000-6060.2024.703 cstr: 32274.14.ALG2024703

• 水文与水资源 • 上一篇    下一篇

中国西北干旱生态移民区跨流域调水生态效益研究——以黄花滩生态移民区为例

田晋华1(), 黄枭2, 高雅玉2,3,4(), 郝建斌2, 吴冠衡5, 何文博2   

  1. 1.甘肃省水土保持科学研究所,甘肃 兰州 730020
    2.兰州理工大学土木与水利工程学院,甘肃 兰州 730050
    3.甘肃有色工程勘察设计研究院,甘肃 兰州 730030
    4.自然资源部高寒干旱区矿山地质环境修复工程技术创新中心,甘肃 兰州 730030
    5.甘肃省景泰川电力提灌水资源利用中心,甘肃 白银 730400
  • 收稿日期:2024-11-14 修回日期:2025-01-09 出版日期:2025-11-25 发布日期:2025-11-26
  • 通讯作者: 高雅玉(1985-),女,博士,正高级工程师,主要从事水资源与水土保持方面的研究. E-mail: gyy@lut.edu.cn
  • 作者简介:田晋华(1986-),男,硕士,正高级工程师,主要从事生态建设与水土保持方面的研究. E-mail: tjhgyy@yeah.net
  • 基金资助:
    甘肃省重点研发计划项目(22YF7FA165);2022年陇原青年创新创业人才(团队)项目(甘组通字[2022]77号);甘肃省水利科学试验研究及推广计划项目(甘水建管发[2025]24号);甘肃省水利科学试验研究及推广计划项目(甘水建管发[2024]78号);兰州理工大学研究生课程思政示范项目(KCSZ-SF-202302606)

Ecological benefits of inter-basin water transfer in arid ecological migration regions of northwest China: A case of Huanghuatan ecological immigrant area

TIAN Jinhua1(), HUANG Xiao2, GAO Yayu2,3,4(), HAO Jianbin2, WU Guanheng5, HE Wenbo2   

  1. 1. Institute of Soil and Water Conservation of Gansu Province, Lanzhou 730020, Gansu, China
    2. School of Civil and Hydraulic Engineering, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
    3. Gansu Nonferrous Engineering Survey, Design and Research Institute, Lanzhou 730030, Gansu, China
    4. Technology Innovation Center for Mine Geological Environment Restoration in the Alpine and Arid Regions, Ministry of Natural Resources, Lanzhou 730030, Gansu, China
    5. Gansu Jingtaichuan Electric Power Irrigation Water Resource Utilization Center, Baiyin 730400, Gansu, China
  • Received:2024-11-14 Revised:2025-01-09 Published:2025-11-25 Online:2025-11-26

摘要: 生态移民与跨流域调水是西北干旱区生态恢复和环境保护的重要举措,对实现乡村振兴和生态文明建设具有不可或缺的意义。以黄花滩生态移民区为研究对象,从自然气象、植被概况、人类活动和景观格局4个层面选取15个生态指标,构建生态移民区生态效益评价体系,系统分析2005—2020年自然和人类活动对研究区生态效益的影响。结果表明:(1)2005—2020年黄花滩生态移民区旱地、疏林地和建设用地增加,其他土地利用类型减少,主要土地利用转移方式为旱地、草地和裸地之间的相互转换。(2)在类型水平上,草地和裸地破碎化程度先减小后增大,旱地先增大后减小,其他土地利用类型基本不变;在景观水平上,除聚合度指数外其他指数均呈现先增大后减小的趋势。(3)2005—2020年归一化植被指数年均值呈持续上升趋势,上升了109.41%,主要表现为高值区向周边地区不断改善的变化趋势。(4)植被净初级生产力(NPP)年均值变化较小,90%左右地域NPP年均值处于1~50 g C·m-2之间。在西北干旱区进行生态效益评价探索性研究,可为全面评价西北干旱区生态移民和跨流域调水工程的生态环境效益以及生态保护管理等提供科技支撑。

关键词: 生态效益, 生态移民, 跨流域调水, 景观格局, 植被覆盖, 中国西北干旱区

Abstract:

Ecological migration and inter-basin water transfer are important measures for ecological restoration and environmental protection in the arid regions of northwest China, which are indispensable for rural revitalization and ecological civilization construction. This paper takes the ecological migrant area of Huanghuatan as research object, selecting 15 ecological indicators from four levels: natural meteorology, vegetation profiles, human activities and landscape patterns, constructs an ecological benefits evaluation system, and analyzes the impacts that nature and human activities have the ecological benefits of the study area from 2005 to 2020. The results indicated that: (1) Dry land, open land, and construction land increased, while other land use types fell in the Huanghuatan ecological migrant area from 2005 to 2020. The main transfer mode was conversion among dry land, grassland and bare land. (2) At the level of type, the fragmentation degree of grassland and bare land first decreased and then increased, the dry land first increased and then decreased, and other land use types went largely unchanged. At the level of landscape, with the exception of the degree of the aggregation index, indices showed a trend of increasing first and then decreasing. (3) The annual mean value of normalized difference vegetation index showed a continuous upward trend, increasing by 109.41% overall from 2005 to 2020, mainly showing a trend of continuous improvement from the high-value area to the surroundings. (4) The annual mean value of the net primary productivity (NPP) changed little, and the annual mean value of NPP in about 90% of the regions was 1-50 g C·m-2. Exploratory research on the evaluation of ecological benefit in the arid region of northwest China can provide scientific and technological support for comprehensive evaluation of the ecological environmental benefits of ecological migration and inter-basin water transfer projects, as well as ecological protection management in the northwest arid region.

Key words: ecological benefits, ecological migration, inter-basin water transfer, landscape pattern, vegetation cover, arid region of northwest China