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| 灌溉对土壤水分分布和潜水蒸发的影响 | |
| 引用本文： | 曹红霞,康绍忠,何 华.灌溉对土壤水分分布和潜水蒸发的影响[J].西北农林科技大学学报(社会科学版),2003,31(5):69-72. |
| 作者姓名： | 曹红霞 康绍忠 何 华 |
| 作者单位： | 1. 西北农林科技大学,教育部旱区农业水土工程重点实验室,陕西,杨陵,712100 2. 西北农林科技大学,教育部旱区农业水土工程重点实验室,陕西,杨陵,712100;中国农业大学,水利与土木工程学院,北京,100083 3. 西北农林科技大学,教育部旱区农业水土工程重点实验室,陕西,杨陵,712100;中国科学院、水利部,水土保持研究所,陕西,杨陵,712100 |
| 基金项目： | 教育部科学技术研究重点项目(重点02075) |
| 摘 要： | 通过室内土柱试验,对3种灌水处理条件下不同地下水埋深土壤中的水分分布和潜水蒸发规律进行了分析。结果表明,灌溉制度和地下水埋深对潜水蒸发影响较大。在同一水位下,总灌水量相同,灌水频率不同时,随灌水频率增加,潜水蒸发量显著减少;在同一水位下,低灌水频率土壤随次灌水量增加潜水蒸发减少,且水位越深,潜水蒸发量减少越大,水位越浅,潜水蒸发量减少越小。 |
| 关 键 词： | 灌溉 地下水埋深 潜水蒸发 土壤水分布 |
| 文章编号： | 1671-9387(2003)05-0069-04 |
| 收稿时间： | 2003/1/17 0:00:00 |
| 修稿时间： | 2003年1月17日 |
Effects of irrigation on soil water distribution and shallow groundwater evaporation |
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| CAO Hong xia,KANG Shao zhong,,HE Hua.Effects of irrigation on soil water distribution and shallow groundwater evaporation[J].Journal of Northwest Sci-Tech Univ of Agr and,2003,31(5):69-72. | |
| Authors: | CAO Hong xia KANG Shao zhong HE Hua |
| Institution: | 1,3 y of Education,Northwest Sci Tech University of Agriculture and Forestry,Yangling,Shaanxi 712100,China; 2 College of Water Resources and Civil Engineering of China Agricultural University,Beijing 100083,China; 3 Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Yangling,Shaanxi 712100,China) |
| Abstract: | Water distribution and shallow groundwater evaporation in soil with different groundwater table under three irrigation treatments were investigated through soil column experiments in lab.Results showed irrigation schedule and groundwater table had a great influence on the shallow ground water evaporation.The evaporation of shallow groundwater would decrease substantially when irrigation frequency increased at the same groundwater table and same irrigation quantity.The evaporation of shallow groundwater decreased at low irrigation frequency under the same groundwater table when the quantity per irrigation increased.Deeper the groundwater table,less the evaporation. |
| Keywords: | irrigation groundwater table shallow groundwater evaporation soil water distribution |
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