摘要
用双环入渗仪测定昆明市主要公园绿地的土壤入渗特征,结果表明：昆明市公园绿地土壤以轻粘土和中粘土为主,各公园绿地土壤入渗能力均较好,稳定入渗速率为0.34~1.41 mm/min,平均值0.83 mm/min,在连续72 h无降雨、无浇水条件下,1 h平均累计入渗量为63.09 mm。各种绿地中乔灌草绿地入渗性能优于乔草和灌草绿地,自然绿地改造公园土壤入渗性能优于人工填土复绿植被下土壤。用常用的入渗模型进行拟合比较,通用公式与昆明市公园绿地土壤入渗特征符合性最好,其次是Kostiskov模型和Horton模型,且后2个模型与通用公式的拟合结果没有明显差异,Philip模型不适合模拟使用。
Double-cycle infiltrator method was used to quantitatively measure the soil infiltration capacity of main park greenbelt in Kunming. The results indicated that the soil of park greenbelt in Kunming is mainly light clay and clay. The soil infiltration capacity of all the park greenbelts was good. The steady infiltration rate was between 0. 34-1.41 mm ·min-1 and the average value was 0 83 mm · min-1. 1 h average cumulative infiltration rate was 63.09 mm under the condition of no rain and no water in continuous 72 h. The infiltration capability of arborshrub-grass compound greenbelt was better than arbor-grass and shrub-grass greenbelt, and the one of Natural greenbelt park was better than artificial vegetation on backfill. Fitting comparison with the commonly used infiltration model proved that a common empirical infiltration model described the best suited performance on the in- filtrating processes in the main greenbelt in Kuming, followed by the Kostiakov model , and Horton model. Fitting result has no obvious difference between the last two models and the common empirical infiltration model. Philip model was not suitable for simulating.
出处
《西南林业大学学报（自然科学）》
CAS
北大核心
2016年第3期111-115,共5页
Journal of Southwest Forestry University：Natural Sciences
基金
国家自然科学基金项目资助(51168043)
西南林业大学云南省省级重点学科(林学)资助
西南林业大学水土保持重点学科资助
西南地区生物多样性保育国家林业局重点实验室开放基金资助
关键词
公园绿地
土壤入渗速率
入渗模型
昆明市
park greenbelt, soil infiltration rate, infiltration model, Kunming City
作者简介
马建刚（1978-），男，硕士，副教授。研究方向：城市水土保持。Email：12578734@qq．com。
