Impacts of the Three-North Afforestation Program on the Environmental Characteristics of the Northern Part of Huanxian County
Based on the positioning and monitoring data of the Three-North Project Area in the northern part of Huanxian County from 2017 to 2023,this study analyzed the characteristics of meteorological and aeolian sand environment changes in the region.The results showed that:1)The total radiation and atmospheric temperature increased by 18.34 W·m-2 and 0.52℃per year,and the atmospheric pressure and precipitation,air humidity decreased by 2.08 KPa and 19.73 mm,1.87%per year.2)The wind direction in the study area was dominated by northwest winds,and the average daily wind speed and daily maximum wind speed near the surface decreased by 0.05 m·s-1 and 0.17 m·s-1 per year.3)From the perspective of wind erosion,the arbor forest and shrub forest in the closed area were in a state of accumulation,and the average annual sediment transport decreased by-106.24 g and-260.628 g.In summary,from 2017 to 2023,the overall climate performance of the northern part of Huanxian County changed to warm and dry,but the wind conditions were gradually improving,and the implementation of the Three-North Project played a significant role in improving the ecological environment in the area.
NETL
NSTL
万方数据
