Journal of Arid Meteorology ›› 2020, Vol. 38 ›› Issue (5): 828-833.DOI: 10.11755/j.issn.1006-7639(2020)-05-0828

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Landscape Patterns Change of the Heihe Wetland of Zhangye and Its Value Assessment of Carbon Storage in Recent 15 Years

REN Min1, WANG Haibo2,3#br#

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  1. 1. Center for Studies of Ethnic Minorities in Northwest China of Lanzhou University, Lanzhou 730000, China;
    2. Key Laboratory of Remote Sensing of Gansu Province, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China;  3. Heihe Remote Sensing Experimental Research Station, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China)

  • Online:2020-10-30 Published:2020-10-30

张掖黑河湿地近15 a来景观格局变化及其碳储量价值评估

任敏1,王海波2,3   

  1. 1.兰州大学西北少数民族研究中心,甘肃 兰州 730000;
    2.中国科学院西北生态环境与资源研究院甘肃省遥感重点实验室,甘肃 兰州 730000;
    3.中国科学院西北生态环境与资源研究院黑河遥感试验研究站,甘肃 兰州 730000)
  • 通讯作者: 王海波(1986— ),男,博士,副研究员,主要从事生态遥感应用研究. E-mail: wanghaibokm@163.com。
  • 作者简介:任敏(1987— ),女,博士生,主要从事西部社会发展与生态服务研究.
  • 基金资助:
    2020年陇原青年创新创业人才(团队)项目(甘肃省委组织部-甘组通\[2020\]9号)资助

Abstract: Wetland is an important natural landscape, which is also one of important carbon storage pool of terrestrial ecosystems with great ecological service functions. Based on satellite remote sensing data and geographical conditions census data, the wetland landscape pattern and its dynamic change were monitored and analyzed during 2000-2014 in the Heihe Wetland National Nature Reserve of Zhangye, which located in the middle reaches of Heihe river basin of Northwest China arid area. And on this basis, the carbon storages of wetland and its ecological values were evaluated by using the biomass inventory and bibliometric methods. The results show that the change of wetland landscape patterns was significant in the Heihe Wetland National Nature Reserve of Zhangye in recent 15 years, and the landscape was fragmented gradually, as a whole. The area of wetland decreased at first and then increased slowly, the disturbance of human activity aggravated, which caused the corresponding changes of carbon storage and its service value and function. The total carbon storage of wetland in the nature reserve was about 2.99×105 t in 2014, and its value was about 2.48×108 Yuan, while they were 5.9×104 t and 5.2×107 Yuan less than that in 2000, respectively. In recent years, the eco-environment of wetland improved gradually since the establishment of nature reserve in Zhangye.

Key words: inland river wetland, landscape pattern, carbon storage and its value, Landsat images

摘要: 湿地是陆地表面重要的自然景观和碳库之一,具有较大的生态价值功能。以地处中国西北干旱区黑河流域中游的张掖黑河湿地国家级自然保护区为研究区,基于卫星遥感数据和地理国情普查资料,监测分析近15 a来保护区湿地景观格局的动态变化,并利用文献计量法对湿地碳储量进行估算,探讨2000年以来湿地碳储存价值功能变化。结果表明:近15 a来,保护区的湿地景观空间格局发生显著变化,景观整体呈破碎化和复杂化趋势,湿地总面积呈先减少后缓慢增加趋势,人类活动干扰加剧,湿地碳储量及其价值功能也随之发生相应变化。其中,2014年保护区湿地总碳储量约2.99×105 t,其碳储量价值约2.48×108元,较2000年分别减少5.9×104 t和5.2×107元。近年来,随着湿地保护区的建立,湿地生态环境逐渐得到改善。

关键词: 内陆河湿地, 景观格局, 碳储量及其价值, Landsat影像

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