| 摘要: |
| 以马尾松、湿地松、大叶相思、竹林、杉木、针阔混交林、阔叶林等7种林分为研究对象，研究了中山市不同林分类型的土壤贮水能力和土壤渗透性能。结果如下：7种林分类型0～100 cm土壤最大持水量平均值为562.7 mm，以大叶相思和阔叶林这两种阔叶林分为最大、在600 mm以上，而杉木、湿地松和马尾松等针叶林较小、在510～536 mm之间；针阔混交林和竹林居中。土壤的初渗速度15.78～39.50 mm/min，稳渗速度2.08～4.40 mm/min；土壤入渗过程的回归方程表现为幂函数形式，回归系数R值均大于0.95，方程拟合效果好。 |
| 关键词: 林分〓土壤〓涵养水源〓持水量〓渗透 |
| DOI： |
| 分类号: |
| 基金项目:广东省林业局项目“广东省森林生态效益监测网络建设与研究”。 |
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| Study of Water Conservation Capacity in 7 kinds of Forests \=in Zhongshan, Guangdong |
|
Zhou Yi
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| Abstract: |
| Soil water storage capacity and infiltration rate in 7 kinds of forests were investigated in Zhongshan, Guangdong. The forests included Pinus massoniana forest, P. elliottii forest, Acacia auriculiformis forest, bamboo forest, Cunninghamia lanceolata forest, needle and broadleaf mixed forest, and broadleaf forest. The results are as follows: The average of maximum soil water holding capacity at the 0~100 cm depth are 562.7 mm among the 7 kinds of forests. The maximum soil water holding capacity are the highest in the broadleaf forest and A. auriculiformis forest, followed by the mixed forest and bamboo forest, and the needle forest including P. massoniana forest, P. elliottii forest and C. lanceolata forest. The penetrability rates of soil vary between 15.78～ 39.50 mm/min initially, and 2.08～ 4.40 mm/min steadily. The water infiltration process in soil in each forest is expressed as a regression model. The regression coefficients (R) are higher than 0.95, suggesting the models are well fitted. |
| Key words: forest, soil, water conservation, water holding capcity, infiltration |
