湖北农业科学 ›› 2023, Vol. 62 ›› Issue (5): 22-26.doi: 10.14088/j.cnki.issn0439-8114.2023.05.005

• 资源·环境 • 上一篇    下一篇

基于多源土地覆盖数据产品的长江上游森林动态变化不确定性及其特征分析

朱超凡1, 朱求安1,2, 王乐1, 刘佳1, 瞿莉莎1   

  1. 1.河海大学水文水资源学院,南京 210000;
    2.国家地球系统科学数据中心,北京 100101
  • 收稿日期:2022-08-31 出版日期:2023-05-25 发布日期:2023-06-12
  • 通讯作者: 朱求安(1979-),男,湖南韶山人,教授,博士,主要从事生态水文与水环境保护,(电话)15129095750 (电子信箱)zhuq@hhu.edu.cn。
  • 作者简介:朱超凡(1998-),男,安徽淮北人,在读硕士研究生,研究方向为生态水文与水环境保护,(电话) 17681001616(电子信箱)zhuchaofan@hhu.edu.cn。
  • 基金资助:
    国家自然科学基金项目(42041005; U2243203); 第二次青藏高原综合科学考察研究项目(2019QZKK0304)

Uncertainty and characteristics analysis of forest dynamic changes in the upper reaches of the Yangtze River region based on multi-source land cover data products

ZHU Chao-fan1, ZHU Qiu-an1,2, WANG Le1, LIU Jia1, QU Li-sha1   

  1. 1. College of Hydrology and Water Resources, Hohai University, Nanjing 210000, China;
    2. National Earth System Science Data Center, Beijing 100101, China
  • Received:2022-08-31 Online:2023-05-25 Published:2023-06-12

摘要: 基于多源土地覆盖数据产品在长江上游地区森林分布的不确定性进行讨论,以全国第六次森林资源清查数据为参考数据,对多源土地覆盖数据产品进行精度评价,分析长江上游地区的森林动态变化特征。结果表明,土地覆盖数据产品在长江上游地区森林分布及变化上存在较大的不确定性;CLUD-A数据产品的精度最高;森林变化的趋势分析显示,长江上游地区森林面积增加较多的区域为重庆市、贵州省、四川省、云南省;1982—1990年长江上游地区森林面积呈增加趋势,1991—2000年长江上游地区森林面积呈减少趋势,2001—2010年长江上游地区森林面积呈增加趋势,2011—2015年森林面积呈减少趋势,与天保工程的实施有明显的关联度。

关键词: 土地覆盖数据产品, 精度评价, 森林资源变化趋势, 长江上游

Abstract: Based on the uncertainty of the forest distribution of multi-source land cover data products in the upper Yangtze River region, this paper evaluated the accuracy of multi-source land cover data products using the sixth national forest resource inventory data as a reference, and analyzed the dynamic changes of forests in the upper Yangtze River region. The results indicated that there was significant uncertainty in the distribution and changes of forests in the upper Yangtze River region in land cover data products; the CLUD-A data product had the highest accuracy; the trend analysis of forest change showed that the areas with a significant increase in forest area in the upper Yangtze River region were Chongqing City, Guizhou Province, Sichuan Province, and Yunnan Province; the forest area in the upper Yangtze River region showed an increasing trend from 1982 to 1990, a decreasing trend from 1991 to 2000, an overall increasing trend from 2001 to 2010, and a decreasing trend from 2011 to 2015, which was significantly related to the implementation of the natural conservation project.

Key words: land cover data products, accuracy evaluation, trends in forest resource changes, upper Yangtze River

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