长江科学院院报 ›› 2024, Vol. 41 ›› Issue (11): 65-74.DOI: 10.11988/ckyyb.20230452

• 水土保持与生态修复 • 上一篇    下一篇

定量评价人类活动对吕梁山植被NPP的影响

孟鑫1(), 刘珺2, 张菊梅3, 苏宇凡2, 杨俊亮1()   

  1. 1 中国能源建设集团山西省电力勘测设计院有限公司,太原 030024
    2 太原理工大学 矿业工程学院,太原 030024
    3 山西冶金岩土工程勘察有限公司,太原 030024
  • 收稿日期:2023-05-04 修回日期:2023-10-08 出版日期:2024-11-01 发布日期:2024-11-26
  • 通讯作者: 杨俊亮(1988-),男,山西太原人,高级工程师,硕士,主要从事测绘及地理信息等研究工作。E-mail: jl.yang@sepec.com.cn
  • 作者简介:

    孟 鑫(1996-),男,山西长治人,助理工程师,硕士,主要从事地理信息技术与遥感等研究。E-mail:

  • 基金资助:
    山西省自然科学基金面上项目(202203021221043)

Quantitative Evaluation of the Impact of Human Activities on Net Primary Productivity of Vegetation in Lüliang Mountains

MENG Xin1(), LIU Jun2, ZHANG Ju-mei3, SU Yu-fan2, YANG Jun-liang1()   

  1. 1 China Energy Engineering Group Shanxi Electric Power Engineering, Co.,Ltd., Taiyuan 030024,China
    2 School of Mining Engineering, Taiyuan University of Technology, Taiyuan 030024,China
    3 Shanxi Metallurgical Geotechnical Engineering Investigation Co., Ltd., Taiyuan 030024,China
  • Received:2023-05-04 Revised:2023-10-08 Published:2024-11-01 Online:2024-11-26

摘要:

为研究2000—2019年吕梁山植被NPP的时空分布格局,定量评价人类活动对其影响,采用改进的CASA模型估算2000—2019年吕梁山实际NPP(NPPA),结合周广胜模型估算得到的潜在NPP(NPPP)计算人类活动导致的NPP损失(NPPH),并利用人类活动相对影响贡献率指数(RICI)来定量评价人类活动对植被NPP的贡献率,同时分析土地利用类型变化对植被NPPA的影响。结果表明:吕梁山NPPA和NPPH分别呈增加和减少趋势,NPPA整体呈东南向西北减少,NPPH呈东南向西北增加;土地利用变化主要集中在林地、农田、草地、水体之间,林地和农田面积增加会使NPPA总量增加,林地转为其他类型和草地转为农田则会造成NPPA减少;人类活动对吕梁山NPP的贡献率为51.80%,表明人类活动在吕梁山NPP变化中占主导因素。研究结果可为吕梁山生态环境的修复、保护和可持续发展提供科学依据。

关键词: 土地利用, NPP, CASA, 人类活动, 定量评价

Abstract:

To investigate the spatial and temporal distribution patterns of vegetation net primary productivity (NPP) in the Lüliang Mountains from 2000 to 2019, and to quantitatively assess the impact of human activities on these patterns, this study employs an enhanced CASA model to estimate the actual NPP (NPPA) for the region. By integrating the potential NPP (NPPP) estimated using Zhou Guang-sheng’s model, we calculate the NPP loss (NPPH) attributed to human activities. In association with the Relative Impact Contribution Index (RICI), we quantify the influence of human activities on vegetation NPP and analyze how changes in land use types affect NPPA. Results reveal that NPPA in the Lüliang Mountains generally exhibited a decreasing trend from southeast to northwest, while NPPH displayed an increasing trend in the same direction. Changes in land use primarily affected forest land, farmland, grassland, and water bodies. Increasing areas of forest land and farmland led to a rise in total NPPA, whereas converting forest land to other uses and transforming grassland into farmland resulted in a decrease in NPPA. Human activities account for 51.80% of the observed changes in NPP, highlighting their significant role in altering NPP in the Lüliang Mountains. These findings provide a scientific foundation for the restoration, protection, and sustainable management of ecological environment in the Lüliang Mountains.

Key words: land use, NPP, CASA, human activities, quantitative evaluation

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