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中国沙漠 ›› 2022, Vol. 42 ›› Issue (3): 63-73.DOI: 10.7522/j.issn.1000-694X.2021.00172

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20042014年河西走廊荒漠化草地生态系统服务价值估算

邵梅1,2(), 马立鹏3, 王新源3, 车雪华1,2, 王芳1, 逯军峰1, 罗万银1()   

  1. 1.中国科学院西北生态环境资源研究院 沙漠与沙漠化重点实验室,甘肃 兰州 730000
    2.中国科学院大学,北京 100049
    3.甘肃省生态资源监测中心,甘肃 兰州 730020
  • 收稿日期:2021-10-20 修回日期:2021-11-15 出版日期:2022-05-20 发布日期:2022-06-01
  • 通讯作者: 罗万银
  • 作者简介:罗万银(E-mail: wyluo@lzb.ac.cn
    邵梅(1995—),女,山东济南人,博士研究生,主要研究方向为风沙地貌。E-mail: shaomei18@mails.ucas.ac.cn
  • 基金资助:
    甘肃省荒漠化草地分布格局及其对生态工程的响应机理(甘林草函[2020]72号项目);甘肃省重点研发-国际科技合作项目(20YF8WA005);中国科学院战略性先导科技专项(XDA26010101)

The valuation of ecosystem service value of desertification grassland from 2004 to 2014 in Hexi Corridor, China

Mei Shao1,2(), Lipeng Ma3, Xinyuan Wang3, Xuehua Che1,2, Fang Wang1, Junfeng Lu1, Wanyin Luo1()   

  1. 1.Key Laboratory of Desert and Desertification,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,China
    2.University of Chinese Academy of Sciences,Beijing 100049,China
    3.Gansu Monitoring Center for Ecological Resources,Lanzhou 730020,China
  • Received:2021-10-20 Revised:2021-11-15 Online:2022-05-20 Published:2022-06-01
  • Contact: Wanyin Luo

摘要:

草地是干旱、半干旱区面积占优势的生态系统,在时间尺度上对其进行生态系统服务价值评估是判断区域生态系统处于改善或退化的主要途径。基于野外调查和遥感分类解译划分的河西走廊荒漠化草地基础数据,首次建立了河西走廊不同类型、不同程度荒漠化草地生态系统服务价值计算和修正方案,评估了第三次(2004年)、第四次(2009年)和第五次(2014年)荒漠化监测期河西走廊荒漠化草地生态系统服务价值动态变化及服务价值结构。结果表明:(1)2004—2014年间河西走廊草地荒漠化呈现轻微逆转趋势,荒漠化草地面积由519.7万 hm2减少至357.7万 hm2;(2)10年间河西走廊荒漠化草地生态系统服务总价值以损失为主,损失量达209亿元;(3)河西走廊荒漠化草地生态系统服务总价值在时空分布、荒漠化类型和程度方面存在显著差异;(4)河西走廊荒漠化草地生态系统服务倾向于气候调节、净化环境和水文调节功能。

关键词: 生态系统服务价值, 荒漠化草地, 评估指标体系, 河西走廊

Abstract:

Grassland is the dominant ecosystem in arid and semi-arid areas. It is the main way to evaluate the ecosystem service value on time scale to judge whether the region ecosystem is in improvement or degradation. Based on the field survey, remote sensing classification and interpretation method, and the desertification grassland area data of different types and different degrees in Hexi Corridor, this paper established the evaluation standard system of ecosystem service value of different types and different degrees of desertification grassland in Hexi Corridor to evaluate the dynamic changes of ecosystem service value and service structure of desertification grassland in Hexi Corridor during the third (2004), fourth (2009) and fifth (2014) desertification monitoring. The results showed that: (1) The desertification of grassland in Hexi Corridor showed a slight reversal trend from 2004 to 2014, and the area of desertification grassland decreased from 5.197×106 hm2 to 3.577×106 hm2. (2) The total value of desertification grassland ecosystem services in Hexi Corridor was mainly lost, which was up to 20.9 billion yuan. (3) The total value of ecosystem services of desertification grassland in Hexi Corridor was significantly different in terms of spatial and temporal distribution of desertification types and degrees. (4) The ecosystem service functions of desertification grassland ecosystem in Hexi Corridor tended to be climate regulation, environment purification and hydrological regulation.

Key words: ecosystem service value, desertification grassland, evaluation standard system, Hexi Corridor

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