东北黑土“土壤水库”特征及渗透速率研究 |
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引用本文: | 胡业殊,刘艇,王继红. 东北黑土“土壤水库”特征及渗透速率研究[J]. 安徽农业科学, 2011, 39(21): 12765-12767 |
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作者姓名: | 胡业殊 刘艇 王继红 |
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作者单位: | 1. 吉林省长春市土壤肥料工作站,吉林长春,130000 2. 吉林农业大学资源环境学院,吉林长春,130118 |
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基金项目: | 973计划项目,吉林省科技厅项目 |
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摘 要: | [目的]减少黑土水土流失,保护黑土良好的生产性能。[方法]通过野外采样和室内分析等方法,以侵蚀地为参照,耕地、林地和荒地为研究对象,对其土壤水库变化特征及土壤渗透速率进行研究。[结果]0~10cm和10~20cm土层内各样地的总库容、滞洪库容、兴利库容和最大有效库容的大小顺序均为:林地〉耕地〉荒地〉侵蚀地,而死库容的大小顺序为耕地〉林地〉荒地〉侵蚀地。20~80cm土层内各样地的水库容的大小顺序均为:林地〉耕地〉荒地〉侵蚀地。各样地的水库容均随土层深度的增加而呈现下降的趋势。[结论]土壤的孔隙状况是影响土壤最大有效库容的主要因素。土壤渗透性能受土壤容重等其他因素的综合影响。
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关 键 词: | 黑土 土壤水库 库容 渗透速率 |
Studies on the Characteristics and Permeation Speed of Soil Reservoir in Northeast Black Soil |
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Affiliation: | HU Ye-shu et al(Soil and Fertilizer Work Station of Changchun City,Changchun,Jilin 130000) |
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Abstract: | [Objective]The research aimed to reduce the soil erosion of black soil and protect the good production performance of black soil.[Method]By field sampling and laboratory analysis and other methods,taking eroded-land as control and farmland,forestland and wasteland as the research objects,the change characteristics and permeation speed of soil reservoirs were studied.[Result]The order of the total storage capacity,flood detention storage capacity,storage capacity and the maximum effective capacity in different sample soils in 0 ~ 10 cm and 10 ~ 20 cm soil layers were as follows:forestland > farmland > wasteland > eroded-land,while the order of the dead storage capacity was farmland > forestland > wasteland > eroded-land.The reservoir capacity of all the plots in 20 ~ 80 cm soil layer was forestland > farmland > wasteland > eroded-land.The reservoir capacity of all the plots all showed the decreasing trend with the increase of the soil layer depth.[Conclusion]The soil porosity was the main factor that affected the maximum effective capacity of soil.Soil permeability was icomprehensivey affected by soil bulk density and other factors. |
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Keywords: | Black soil Soil reservoir Storage capacity Permeation speed |
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