黄浦江源头区主要植被类型土壤入渗特征及模拟分析
发布时间：2018-07-17 21:04
【摘要】：采用"双环法"测定了黄浦江源头区不同植被类型土壤渗透过程,并应用考斯恰可夫公式、霍顿公式、菲利浦公式和通用经验公式4种常用入渗模型进行了拟合分析。结果表明:(1)落阔林土壤平均渗透率最高,达828.93mm/h,分别是松林、草地、茶园、灌木林、毛竹林、常阔林、裸露地的1.27,1.38,1.48,1.48,1.88,2.04,3.76倍;松林、草地、茶园、灌木林之间,灌木林、毛竹林、常阔林之间渗透性差异不显著;裸露地平均渗透率最低,在5%水平下裸露地平均渗透速率显著低于落叶阔叶林、松林等林(草)地平均渗透速率。各林地土壤的渗透能力之间有差异,但都要强于裸露地,表明森林植被能有效改善土壤的渗透能力。(2)对8种不同样地土壤的典型入渗过程进行拟合的结果表明,考斯恰可夫公式和菲利浦公式拟合理想,以考斯恰可夫公式拟合最佳,而霍顿公式、通用经验公式与实测点拟合较差。
[Abstract]:The soil infiltration process of different vegetation types in the source area of Huangpu River was measured by "double Ring method", and the fitting analysis was carried out with four kinds of commonly used infiltration models, such as Coschakov formula, Horton formula, Philip formula and general empirical formula. The results are as follows: (1) the average soil permeability of broad-leaved forest is the highest (828.93 mm / h), which is 1.271.38% of that of pine forest, grassland, tea garden, shrub, Phyllostachys pubescens, evergreen broad-forest, bare land, 1.271.38 (1.481) (1.4882) (1.88) (2.84%); pine, grassland, tea garden, bush, shrubbery, bamboo (Phyllostachys pubescens), and bamboo (Phyllostachys pubescens). The average permeability of bare land was the lowest, and the average permeability rate of bare land was significantly lower than that of deciduous broad-leaved forest and pine forest (grass) at 5% level. The infiltration ability of different forest land soils is different, but it is stronger than that of bare land, which indicates that forest vegetation can effectively improve soil infiltration ability. (2) the fitting results of typical infiltration process of 8 different soils show that the forest vegetation can improve the infiltration ability of the soil effectively. (2) the results of fitting the typical infiltration process of 8 different soils show that, The Kuschakov formula and the Phillips formula fit the ideal, while the Horton formula, the general empirical formula and the measured point fitting are the best.
【作者单位】： 中水珠江规划勘测设计有限公司;江苏泗阳水利建筑安装工程公司;
【基金】：上海市科委重点项目(2002-8)
【分类号】：S152.72
[Abstract]:The soil infiltration process of different vegetation types in the source area of Huangpu River was measured by "double Ring method", and the fitting analysis was carried out with four kinds of commonly used infiltration models, such as Coschakov formula, Horton formula, Philip formula and general empirical formula. The results are as follows: (1) the average soil permeability of broad-leaved forest is the highest (828.93 mm / h), which is 1.271.38% of that of pine forest, grassland, tea garden, shrub, Phyllostachys pubescens, evergreen broad-forest, bare land, 1.271.38 (1.481) (1.4882) (1.88) (2.84%); pine, grassland, tea garden, bush, shrubbery, bamboo (Phyllostachys pubescens), and bamboo (Phyllostachys pubescens). The average permeability of bare land was the lowest, and the average permeability rate of bare land was significantly lower than that of deciduous broad-leaved forest and pine forest (grass) at 5% level. The infiltration ability of different forest land soils is different, but it is stronger than that of bare land, which indicates that forest vegetation can effectively improve soil infiltration ability. (2) the fitting results of typical infiltration process of 8 different soils show that the forest vegetation can improve the infiltration ability of the soil effectively. (2) the results of fitting the typical infiltration process of 8 different soils show that, The Kuschakov formula and the Phillips formula fit the ideal, while the Horton formula, the general empirical formula and the measured point fitting are the best.
【作者单位】： 中水珠江规划勘测设计有限公司;江苏泗阳水利建筑安装工程公司;
【基金】：上海市科委重点项目(2002-8)
【分类号】：S152.72
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