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题名	干旱区旱生芦苇耗水量计算模型研究
作者	李岳坦
学位类别	硕士
答辩日期	2007
授予单位	中国科学院．新疆生态与地理研究所
导师	胡顺军，中国科学院新疆生态与地理研究所
关键词	旱生芦苇
其他题名	Study on the Evapotranspiration Calculation Model of Xerophilous Reed in Arid Zone
中文摘要	本文利用在中国科学院阿克苏水平衡试验站观测的芦苇试验小区土壤水分资料以及收集的中国科学院阿克苏水平衡站的气象资料，分别对芦苇试验小区的土壤水分动态、参考作物潜在蒸散量以及干旱区旱生芦苇耗水量计算模型进行了研究，主要结论如下：（1）芦苇各试验小区土壤含水量的变化趋势是随着时间的推移逐渐减小，但是减小的程度有所不同，主要是与芦苇的长势有关，芦苇长势较好的小区，耗水量大，土壤含水量变化较快；芦苇长势较差的小区，耗水量小，土壤含水量变化较慢。（2）分别利用Penman公式、Penman-Monteith公式和Hargreaves公式计算了参考作物的潜在蒸散量，并对三种方法的计算结果进行了对比分析，对比分析结果表明，用三种方法计算的ET0是比较接近的，建议推广应用标准化的Penman-Monteith公式来计算参考作物的潜在蒸散量，并以此为标准校正其它经验方法和确定新的植物系数。（3）利用在中国科学院阿克苏水平衡试验站监测的气象资料、水面蒸发资料、土壤水分运动参数及芦苇试验小区土壤水分资料，建立了12种计算芦苇耗水量的计算模型。并通过计算相关系数、确定性系数、相关曲线的斜率、模型有效性系数、解释方差及平衡误差等，对模型进行了检验。检验结果表明，模型计算精度较高，可以作为计算干旱区旱生芦苇耗水量的方法而使用。Based on the soil moisture data of reed test plots and meteorological data collected in Aksu water balance experimental station of CAS, soil moisture dynamics of reed test plots, reference crop evapotranspiration and evapotranspiration calculation models of xerophilous reed in arid zone were studied, and here are the conclusions: （1）The time-variation of soil moisture content of each test plot was diminish gradually, but the degree was different, this mainly depend on the growth condition of reed, the test plot with better reed growth condition has a bigger evapotranspiration, and the variation of soil moisture content is bigger; while the plot with worse reed growth condition has a less evapotranspiration, and the variation of soil moisture content is less. （2）Reference crop evapotranspirations calculated by the equation of Penman, Penman-Monteith and Hargreves were compared, the results show that the reference crop evapotranspiration calculated by the 3 equation were equivalent, and to calculate reference crop evapotranspiration by standardized Penman-Monteith equation was suggested to revise other empirical methods and to determine new plant coefficient. （3）Based on the meteorological data of Aksu water balance experimental station of CAS, evaporation from water surfaces, soil-water movement parameters, and moisture volume percentage of reed test plots, 12 kinds of reed evapotranspiration calculation models were established, and the results of these calculation models were tested and verified by correlation coefficient, deterministic coefficient, slope of correlation curve, effective coefficient of the model, explanation variance and balance deviation, the result shows that these calculation models have high calculation accuracy and can be used to calculate xerophilous reed evapotranspiration of arid zone.
语种	中文
学科主题	草业科学
公开日期	2010-11-12
页码	共68页
内容类型	学位论文
源URL	[http://ir.xjlas.org/handle/365004/7964]
专题	新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据)
推荐引用方式 GB/T 7714	李岳坦. 干旱区旱生芦苇耗水量计算模型研究[D]. 中国科学院．新疆生态与地理研究所. 2007.

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