| 毛乌素沙地饲草料作物土壤水动态 |
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| 引用本文： | 佟长福,郭克贞,史海滨,杨燕山,徐冰,薛铸.毛乌素沙地饲草料作物土壤水动态[J].中国农村水利水电,2007,0(1):28-31. |
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| 作者姓名： | 佟长福 郭克贞 史海滨 杨燕山 徐冰 薛铸 |
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| 作者单位： | 1. 水利部牧区水利科学研究所,呼和浩特,010010
2. 内蒙古农业大学水利与土木建筑工程学院,呼和浩特,010018 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 对节水灌溉条件下的紫花苜蓿、饲料玉米和青贮玉米需水量进行了试验研究，分析了不同灌溉水平下3种饲草料作物的土壤水动态和需水规律。结果表明，土壤水动态主要受降雨、灌溉和地下水埋深的影响。紫花苜蓿需水高峰值出现在6月下旬至8月中下旬，其需水强度最大可达9.0mm/d，阶段需水模系数最大可达41.2%；饲料玉米和青贮玉米需水高峰值出现在7月下旬至8月上旬，其需水强度分别为11.40mm/d和11.3mm/d，阶段需水模系数最大可达45.2%和44.9%,成果为节水灌溉制度的制定和灌溉预报等提供了科学依据。
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| 关 键 词： | 饲草料作物 土壤水动态 需水强度 需水模系数 |
| 文章编号： | 1007-2284(2007)01-0028-04 |
| 修稿时间： | 2006-05-20 |
The Soil-Water Dynamic and the Water Requirement Law of Fodder Grass in Maowusu Sandlot |
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| TONG Chang-fu,GUO Ke-zhen,SHI Hai-bin,YANG Yan-shan,XU Bing,XUE Zhu.The Soil-Water Dynamic and the Water Requirement Law of Fodder Grass in Maowusu Sandlot[J].China Rural Water and Hydropower,2007,0(1):28-31. |
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| Authors: | TONG Chang-fu GUO Ke-zhen SHI Hai-bin YANG Yan-shan XU Bing XUE Zhu |
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| Institution: | 1. Institute of Water Resources in Pastoral Area, Huhhot 010010, China; 2. College of Water Conservancy and Civil Construction Engineering, Inner Mongolia Agricultural University, Huhhot 010018, China |
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| Abstract: | The paper analyzes the soil water dynamics and water requirement law of alfalfa,feed maize and ensile maize under 3 kinds of water-saving irrigation conditions through experimental study on the crops.It is showed that the soil-water dynamic is influenced by precipitation,irrigation and the level of ground water.The peak water requirement of alfalfa appears at the end of June to the middle and end of August,the maximum water requirement intensity can reach 9.0 mm/d,and the maximum water requirement modulus of a stage can reach 41.2%;The peak water requirement of feed maize and ensile maize appear at the end of July to the beginning of August,the water need intensities are 11.4 mm/d and 11.3 mm/d,respectively,and the maximum water requirement modulus of a stage reach 45.2% and 44.9%,respectively.The research can supply the scientific basis for water-saving irrigation program and irrigation forecast. |
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| Keywords: | feed crop soil-water dynamic water requirement intensity water requirement modulus |
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