| 我国沙地水分分布状况及其意义 |
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| 引用本文： | 冯起,程国栋.我国沙地水分分布状况及其意义[J].土壤学报,1999,36(2):225-236. |
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| 作者姓名： | 冯起 程国栋 |
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| 作者单位： | 中国科学院兰州冰川冻土研究所,兰州730000 |
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| 基金项目： | 国家科技攻关项目，国家科技攻关项目 |
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| 摘 要： | 按生物气候带、干燥度、沙地土壤水分平均含量和降水量组合等特点，将我国沙地和沙漠分为荒漠带、半荒溴带、干草原带、半湿润带和南方湿润带五个沙漠区（青藏高原区除外）归纳分析各沙区水分运动基本规律、稳定含水率和有效储水量等项目，探讨影响我国沙地水分分布状况的主要因子，提出了我国不同沙带固沙造林具体措施和适宜选用的植物种。最后讨论各沙地开发和农业生产方向以及灌溉农业的经济效益和未来的发展趋势。
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| 关 键 词： | 沙地水分特征 沙地灌溉效益 土壤水分 分布状况 |
| 收稿时间： | 1997/7/22 0:00:00 |
| 修稿时间： | 1998/1/12 0:00:00 |
MOISTURE DISTRIBUTION AND MOVEMENT IN SANDY LANDS OF CHINA |
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| Feng Qi and Cheng Guo-dong.MOISTURE DISTRIBUTION AND MOVEMENT IN SANDY LANDS OF CHINA[J].Acta Pedologica Sinica,1999,36(2):225-236. |
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| Authors: | Feng Qi and Cheng Guo-dong |
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| Institution: | Lanzhou Institute of Glaciology and Geocryology, Academia Sinica, Lanzhou 730000;Lanzhou Institute of Glaciology and Geocryology, Academia Sinica, Lanzhou 730000 |
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| Abstract: | Based on the assemblage characteristics of bioclimatic zone,aridity,mean moisture content of sandy land,precipitation,etc,five zone,i.e.,desert,semidesert,steppe,subhumid and humid zone were divided for sandy lands and deserts of China.The moisture movement,stable moisture contents and available moisture storages in each zone are summed up and analysed.The main factors affecting moisture dynamical variations of sandy lands are discussed.The concrete measures for afforestation and selection of tree species in different sandy zones are put forward.Finally,the development and agricultural production directions,economic benefit of irrigation agriculture,and future development tendeney of different sandy lands are discussed. |
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| Keywords: | Moisture characteristics of sandy land Fixation and afforestation on sandy land Irrigation benefit of sandy land |
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