基于人工模拟降水的刺槐林与柳树林水质净化效能研究

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关键词水源涵养林;水质净化;刺槐林;柳树林

中图分类号 S727.21 文献标识码A 文章编号 1007-7731（2025）14-0103-04

DOI号 10.16377/j.cnki.issn1007-7731.2025.14.023

Research on water purification efficiency of Robinia pseudoacacia and Salix forests based on artificial simulated precipitation

LIU Yufeng

（AnhuiVocational and TechnicalCollege ofForestry，Hefei 23OO36，China）

AbstractTo explore theroleof water conservation forests in water quality purification，the water conservation forestof Zhanggongtang Reservoir in Shushan District，Hefei City，Anhui Province was taken as theresearch object， artificialsimulatedprecipitation （acidicandnormal precipitation）wasusedtostudytheprecipitationadsorption capacity of the undergrowth vegetation of diffrent forest types （sunny slope Robinia pseudoacacia forest，shady slope Salix forest，and sunny slope Salix forest），and its influence on the pH of water，the concentrations of total nitrogen and total phosphorus，and soil pH.The results showed that under normal precipitation conditions，the water interception capacity of understory vegetation and litter in sunny slope R ：pseudoacacia forest， shady slope Salix forest，and sunny slope Salix forest were 2.505，1.206，and 1.128kg/m2 ，respectively.Under acidic precipitation conditions，the pH of surface water and 3O cm soil infiltration water followed the order： sunny slope R .pseudoacaciaforest > shadyslopeSalix forest > sunny slope Salix forest. Under acidic and normal precipitation conditions，the total nitrogen concentration in infiltration water was lower in R pseudoacacia forests than in Salix forests，with shady slope Salix forests exhibiting lower total nitrogen levelsthansunnyslope Salixforests，whiletotalphosphorusconcentrations showed no significant differences; the pH values of the surface and leached layers of the soil were in the following order： sunny slope R pseudoacacia forest > shady slope Salix forest > sunny slope Salix forest. In conclusion， the water purification eficiency of the three forest types ranked as follows： sunny slope R pseudoacacia forest > shady slope Salix forest > sunny slope Salix forest.These findings provide references for the planning and management of water conservation forests.

Keywordswater conservation forest; water quality purification; Robinia pseudoacacia forest; Salix forest

水污染是目前面临的重要环境问题[1-2]。（剩余4599字）