摘要
太行山是京津冀城镇群和华北平原的生态屏障和重要的水源涵养地,为探究土地利用变化对水源涵养功能的影响,基于土壤、土地利用、DEM、气象等数据,借助InVEST模型定量评估太行山区的水源涵养功能,并分析土地利用变化对水源涵养功能的影响。结果表明:(1)2000—2020年太行山区多年平均水源涵养总量为53.67×10^(8)m^(3),呈现出W型的变化趋势;水源涵养深度均呈现出由南向北、由东向西逐渐降低的空间分布特征。(2)不同地类的水源涵养功能强弱差异明显,依次为草地>林地>未利用地>耕地>建设用地>水域。(3)林地和耕地与水源涵养功能呈现显著正相关,而草地、建设用地和未利用地与水源涵养功能呈现显著负相关。
The Taihang Mountains are an ecological barrier and an important water conservation area for the Beijing-Tianjin-Hebei urban agglomeration and the North China Plain.To explore the impact of land use changes on the water conservation function,based on soil,land use,DEM,and meteorological data,we quantitatively assessed the water conservation function of the Taihang Mountains with the help of the InVEST model,and explored the impact of land use changes on the water conservation function.The results show that:(1)From 2000 to 2020,the total average annual water conservation in the Taihang Mountains was 53.67×10^(8)m^(3),showing a W-shaped trend.The depth of the water conservation all presents the spatial distribution of gradually decreasing from the south to the north and from the east to the west.(2)The water conservation functions of different land use types differ significantly,with the following order of magnitude:grassland>forest land>unused land>cropland>construction land>water.(3)Forest land and cropland show significant positive correlation with the water conservation function,while grassland,construction land and unused land show significant negative correlation with the water conservation function.
作者
李清兰
王成武
汪宙峰
谢亮
LI Qing-lan;WANG Cheng-wu;WANG Zhou-feng;XIE Liang(School of Geoscience and Technology,Southwest Petroleum University,Chengdu Sichuan 610500)
出处
《西华师范大学学报(自然科学版)》
2025年第2期162-169,共8页
Journal of China West Normal University(Natural Sciences)
基金
四川省科技计划资助项目(2023YFS0406)。
关键词
InVEST模型
水源涵养
土地利用
时空变化
太行山
InVEST model
water conservation
land use
spatial and temporal variation
Taihang Mountains
