长江科学院院报2024，Vol.41Issue(11)：65-74,10.DOI:10.11988/ckyyb.20230452
定量评价人类活动对吕梁山植被NPP的影响
Quantitative Evaluation of the Impact of Human Activities on Net Primary Productivity of Vegetation in Lüliang Mountains
摘要
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 in-tegrating 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,protec-tion,and sustainable management of ecological environment in the Lüiliang Mountains.关键词
土地利用/NPP/CASA/人类活动/定量评价Key words
land use/NPP/CASA/human activities/quantitative evaluation分类
信息技术与安全科学引用本文复制引用
孟鑫,刘珺,张菊梅,苏宇凡,杨俊亮..定量评价人类活动对吕梁山植被NPP的影响[J].长江科学院院报,2024,41(11):65-74,10.基金项目
山西省自然科学基金面上项目(202203021221043) （202203021221043）
