| 塔克拉玛干沙漠腹地灌溉土壤水分循环特征 |
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| 引用本文： | 段争虎,何光东,赵爱国,张小由.塔克拉玛干沙漠腹地灌溉土壤水分循环特征[J].干旱区资源与环境,2001,15(3):63-67. |
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| 作者姓名： | 段争虎 何光东 赵爱国 张小由 |
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| 作者单位： | 中国科学院寒区旱区环境与工程研究所, |
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| 基金项目： | 中国石油天然气总公司 95攻关课题“沙漠公路重灾路段生物防沙技术研究”专题，“中国科学院寒区旱区环境与工程研究所知识创新工程项目”资助 |
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| 摘 要： | 通过对塔克拉玛干沙漠腹地三种灌溉方式土壤水分连续测定 ,研究了该土壤水分蒸发移动规律、灌溉周期动态和植物对土壤水分循环的影响。并对该地区植物固沙的灌溉制度进行了初步的研究 ,结果表明 ,虽然沙土水分蒸发移动性与一般规律相同 ,但蒸发强度及其衰减速度比质地较重的土壤大。沙漠腹地造林区土壤水分动态属灌水周期型 ,而不是一般的年周期型。植物对土壤水分循环过程的影响是巨大的 ,畦灌地、沟灌地和滴灌地在 8天时间内由于植物蒸腾损失的土壤湿度分别达到 2 .73 %、1 .70 %和 1 .82 %。三种固沙植物蒸腾水量顺序为 :甘蒙柽柳 >沙生柽柳 >沙拐枣。反过来三种固沙植物的抗旱能力则为沙拐枣 >沙生柽柳 >甘蒙柽柳
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| 关 键 词： | 土壤水分 灌溉方式 水分循环 塔克拉玛干沙漠 |
| 文章编号： | 1003-7578(2001)03-63-05 |
| 修稿时间： | 2000年12月31 |
Study on Soil Water Cycle Under Irrigation in Takelamagan Desert |
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| DUAN Zheng-hu HE Xing-dong ZHAO Ai-guo ZHANG Xiao-you.Study on Soil Water Cycle Under Irrigation in Takelamagan Desert[J].Journal of Arid Land Resources and Environment,2001,15(3):63-67. |
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| Authors: | DUAN Zheng-hu HE Xing-dong ZHAO Ai-guo ZHANG Xiao-you |
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| Abstract: | Through successive test of soil moisture by three irrigation methods in takelamagan desert, axiom of soil moisture evaporation and transporation, dynamic of irrigation water cycle, and effect of plant on soil water cycle were studied. The results showed that evaporation intensity and declining rate of soil moisture were greater in sand land than in clay soil land. Dynamic of soil water cycle was rather about irrigation water cycle type than year cycle type in desert hinterland forestation area. The effect of plant on soil moisture cycle process was very significant. The plant transpiration water amount of drip irrigation, ditch irrgation and plot irrigation were 2.73%?1.70%,and1.82%of the soil water respectively, during eight days. The order of transpiration water amount in three sand fixing plant were Tamarix austromongolica nakai>Tamarix taklamakanensis >Calligonum sp..reversing the order, it was the order of their drought resistant capability. |
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| Keywords: | soil moisture irrigation method eater cycle akelamagan desert |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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