干旱区生态环境知识资源中心(Arid): Hargreaves公式在塔克拉玛干沙漠腹地的适用性

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	Hargreaves公式在塔克拉玛干沙漠腹地的适用性
其他题名	Applicability of the Hargraeves Method in Estimating Reference Evapotranspiration in the Taklamakan Desert Hinterland
	王永东 1; 李生宇1 ; 徐新文1 ; 雷加强1 ; 金小军 1; 王强 2; 邸鲲 2; 张忠良 2
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2013
卷号	33 期号:2 页码:367-372
中文摘要	对运用Hargreaves公式计算参考作物蒸散量(ET_0)在干旱区的适用性存在不同观点。为了求证Hargreaves公式在极端干旱区塔克拉玛干沙漠腹地的适用性,利用20052010年塔克拉玛干沙漠研究站的气象资料,以利用Penman-Monteith公式计算的结果为标准,对利用Hargreaves公式计算的ET_0进行了对比分析,并对两种计算结果差异的成因进行了阐释。结果表明:在年时间尺度上,利用Hargreaves公式计算的结果略大于利用Penman-Monteith公式计算的结果,标准差介于32.86~35.00mm,年参考作物蒸散量计算结果呈现弱变异程度;在月时间尺度上,用两种方法计算的参考作物蒸散量呈现中等变异程度,蒸散量绝对偏差介于-3.26~8.73mm,相对偏差介于-12.20%~29.02%,除了10月与11月,其余月份相对偏差均保持在10%之内。用两种方法计算的10月与11月份ET_0产生差异的最主要原因在于有较高的温度较差。最后,经过对年、月参考作物蒸散量进行t-检验及建立回归方程,表明Hargreaves公式适用于极端干旱的塔克拉玛干沙漠腹地。
英文摘要	There are different opinions on the applicability of the Hargreaves method in calculating reference crop evapotranspiration (ET_0) in arid land. In order to test the applicability of the Hargreaves method in the Taklamakan Desert hinterland, we carried out the current study using the metadata in 2005-2010 collected at the meteorological station in the Taklamakan Desert hinterland. The Penman-Monteith method was set as standard to compare the difference between the two methods. The results showed that at annual scale, the ET_0 calculated with the Hargreaves equation was a little higher than that obtained by Penman-Monteith method, the standard deviation were 32. 86~35. 00 mm, and the annual reference crop evapotranspiration (ET_0) presented weak variation; at monthly scale, the reference crop evapotranspiration (ET_0) presented a middle variation, the absolute deviation of monthly ET_0 was-3. 26~8. 73 mm between the two methods, and the monthly relative deviation was-12. 20%~29. 02%, and the ET_0 deviations were all not more than 10% except for October and November. It was documented that the difference for the calculating ET_0 between the two methods was resulted from the higher temperature range. Based on the estimated ET_0 at annual and monthly scales by the two methods, our results indicated that the ET_0 calculated with the Hargreaves method was applicable in the extreme arid area of the Taklamakan Desert hinterland.
中文关键词	极端干旱区 ; 塔克拉玛干沙漠 ; 参考作物蒸散量
英文关键词	Hargreaves Penman-Monteith extreme arid land Taklimakan Desert reference crop evapotranspiration Hargreaves Penman- Monteith
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:4804617
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230580
作者单位	1.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国; 2.中国石油天然气股份有限公司塔里木油田公司, 库尔勒, 新疆 841000, 中国
推荐引用方式 GB/T 7714	王永东,李生宇,徐新文,等. Hargreaves公式在塔克拉玛干沙漠腹地的适用性[J]. 中国科学院新疆生态与地理研究所,2013,33(2):367-372.
APA	王永东.,李生宇.,徐新文.,雷加强.,金小军.,...&张忠良.(2013).Hargreaves公式在塔克拉玛干沙漠腹地的适用性.中国沙漠,33(2),367-372.
MLA	王永东,et al."Hargreaves公式在塔克拉玛干沙漠腹地的适用性".中国沙漠 33.2(2013):367-372.