ZHANG Shulan,ZHANG Haijun,ZHANG Wu,et al.Soil Hydrological Properties of Main Vegetation in Down South of Xiao Xing’an Mountains[J].Research of Soil and Water Conservation,2015,22(01):140-145.
小兴安岭南麓典型森林类型的土壤水文功能研究
- Title:
- Soil Hydrological Properties of Main Vegetation in Down South of Xiao Xing’an Mountains
- Keywords:
- soil hydrological properties; water storage capacity; infiltration; Xiao Xing’an Mountains
- 分类号:
- S715.7
- 摘要:
- 通过测定土壤水文物理性质、持水及渗透性能，分析了小兴安岭南麓典型森林土壤的持水、蓄水和渗透能力，并利用Kostiakov方程、Horton方程和Philip方程模拟了土壤入渗过程。结果表明：该区森林土壤容重介于0.45～1.52 g/cm3之间；不同植被类型饱和含水率为28.73%～177.32%，毛管含水率25.26～156.84%，自然含水率13.91%～119.18%，随着土层深度加厚，三者具有明显减小趋势；土壤最大持水量范围为282.88～341.41 mm，有效持水量为27.88～61.13 mm，涵蓄降水能力为165.98～197.37 mm（除人工兴安落叶松林为76.32 mm以外）；各植被类型土壤初渗速率和稳渗速率最大值在0—10 cm或10—20 cm土层，平均值分别为11.92 mm/min和2.78 mm/min，二者最小值在不同的植被类型下出现的土层不同，平均值分别为2.19 mm/min和0.66 mm/min；从土壤的入渗过程模拟看，Horton方程的模拟效果较好。
- Abstract:
- Based on soil hydrology physical properties, water holding capacity and infiltration, the water storage and infiltration capacity were analyzed in typical forest stands in down south of Xiaoxing’an Mountains, and Kostiakov equation, Horton equation and Philip equation were used to simulate the soil infiltration processes. The results showed that soil bulk density was between 0.45~1.52 g/cm3, and soil saturated moisture contents of different vegetation types were between 28.73%~177.32%, capillary moisture contents were 25.26%~156.84%, the natural moisture contents were 13.91%~119.18%, and these three parameters obviously decreased with increase of soil depth;the range of soil maximum storage capacity was 282.88~341.41 mm, effective capacity was 27.88~61.13 mm, retention ability of precipitation was 165.98~197.37 mm (except for artificial Larix gmelini forest of 76.32 mm). Soil initial infiltration rate and steady infiltration rate of each vegetation type were the largest in 0—10 cm or 10—20 cm soil layer, the average value was 11.92 mm/min and 2.78 mm/min, respectively, and their minimum values in different vegetation types present in different soil layers, with average value of 2.19 mm/min and 0.66 mm/min. According to the soil infiltration process simulation, Horton equation was better for this simulation.
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备注/Memo
收稿日期:2014-04-11;改回日期:2014-04-29。
基金项目:国家自然科学基金项目（41301034）；黑龙江省教育厅科学技术研究项目（12531703）；佳木斯大学青年基金项目（Sq2012-32）
作者简介:张淑兰(1980-),女,河北省滦南县人,博士,讲师,主要从事森林生态、生态水文过程与模型应用研究。E-mail:zhangshulan1980@163.com