| 南方季节性缺水灌区土壤水分变化规律研究 |
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| 引用本文： | 耿琳,王智育,周芸. 南方季节性缺水灌区土壤水分变化规律研究[J]. 灌溉排水学报, 2007, 26(3): 86-88 |
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| 作者姓名： | 耿琳 王智育 周芸 |
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| 作者单位： | 四川省水利科学研究院,成都,610072;四川省水利科学研究院,成都,610072;四川省水利科学研究院,成都,610072 |
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| 基金项目： | 国家高技术研究发展计划(863计划) , 引进国际先进农业科技计划(948计划) , 四川省现代节水农业公益性科技攻关专项 |
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| 摘 要： | 通过对四川简阳节水农业示范区土壤水分的长期观测,利用统计学方法对南方季节性缺水灌区土壤水分在时间和空间的变异性进行了研究,并对造成这种变异的原因进行了分析。研究结果表明,南方季节性缺水灌区土壤水分垂直变化不明显,土壤水分在坡面呈现出从坡顶到坡脚逐渐增大的变化趋势,土壤水分随着时间的变化较大。南方地区的土层厚度是影响土壤水分的主要因素,地形、气候、植被等因素也对土壤水分的变化产生一定的影响。
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| 关 键 词： | 季节性缺水灌区 土壤水分 时空变异 |
| 文章编号： | 1672-3317（2007）03-0086-03 |
| 修稿时间： | 2006-09-27 |
Studies on Variability of Soil Moisture in Seasonally Water Shortage Irrigation Districts in South China |
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| GENG Lin,WANG Zhi-yu,ZHOU Yun. Studies on Variability of Soil Moisture in Seasonally Water Shortage Irrigation Districts in South China[J]. Journal of Irrigation and Drainage, 2007, 26(3): 86-88 |
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| Authors: | GENG Lin WANG Zhi-yu ZHOU Yun |
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| Affiliation: | Water Conservancy Research Institute of Siehuan Province, Chengdu 610072, China |
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| Abstract: | The experiments of soil moisture are carried out at the "863" demonstration section of Sichuan China for a long time,the temporal and spatial variability of soil moisture in southern seasonally water shortage irrigation districts is studied with statistical method,and the reasons that cause this variance are analyzed.The results show that the variability of the soil moisture is weak in the vertical direction and it increases gradually along the slope,it changes greatly with the time.The thickness of soil is the primary factor that affects the variability of soil moisture.Landform,climate and vegetation also can affect the soil moisture. |
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| Keywords: | seasonally water shortage irrigation district soil moisture spatio-temporal variability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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