| 干旱内陆灌区土壤水分平衡计算及灌溉利用效率分析 |
| |
| 引用本文： | 王金龙,靳孟贵,刘延峰.干旱内陆灌区土壤水分平衡计算及灌溉利用效率分析[J].安全与环境工程,2004,11(1):54-56. |
| |
| 作者姓名： | 王金龙 靳孟贵 刘延峰 |
| |
| 作者单位： | 中国地质大学环境学院,武汉,430074;中国地质大学环境学院,武汉,430074;中国地质大学环境学院,武汉,430074 |
| |
| 基金项目： | 高等学校博士点专项科研基金 ( 2 0 0 2 0 4910 11)，国家自然科学基金 ( 4 9972 0 83 ) |
| |
| 摘 要： | 干旱内陆灌区大水漫灌，不仅浪费宝贵的水资源，还会造成肥料流失和土壤盐渍化。在建立非饱和带一潜水带水量平衡模型的基础上，利用典型区负压计和中子水分观测仪的配套观测，依据水势水分剖面分布，分不同阶段分析计算灌水后蒸散发量。在水量平衡分析、计算的基础上，得出灌溉水流失率(不包括蒸散发)达82％，节水灌溉潜力巨大。
|
| 关 键 词： | 内陆灌区 水量平衡 土壤水 利用效率 |
| 文章编号： | 1671-1556(2004)01-0054-03 |
| 修稿时间： | 2003年10月31 |
Analysis of Soil Water Balance and Irrigation Efficiency for Irrigation District in an Arid Inland Region |
| |
| WANG Jin long,JIN Meng gui,LIU Yan feng.Analysis of Soil Water Balance and Irrigation Efficiency for Irrigation District in an Arid Inland Region[J].Safety and Environmental Engineering,2004,11(1):54-56. |
| |
| Authors: | WANG Jin long JIN Meng gui LIU Yan feng |
| |
| Abstract: | Excessive irrigation not only wastes water resources in an arid inland region, but also results in fertilizer loss, soil salinization and water logging. Based on monitoring water potential by fensiometers and soil moisture by neutron probe, evapotranspiration of different periods in a typical area in Yanqi basin is calculated by water balance models. In conclusion, more than 82 percent of irrigation water in this area is wasted, and water saving irrigation has great potential in the arid and inland region. |
| |
| Keywords: | inland irrigation region water balance soil water irrigation efficiency |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
