基于人工模擬降水的刺槐林與柳樹林水質(zhì)凈化效能研究

打開文本圖片集

關(guān)鍵詞水源涵養(yǎng)林;水質(zhì)凈化;刺槐林;柳樹林

中圖分類號 S727.21 文獻(xiàn)標(biāo)識碼A 文章編號 1007-7731（2025）14-0103-04

DOI號 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

水污染是目前面臨的重要環(huán)境問題[1-2]。（剩余4599字）