1961~2010年辽河三角洲参考蒸散发变化特征及主导因子分析

doi:10.13249/j.cnki.sgs.2014.010.1233

地理科学 ›› 2014, Vol. 34 ›› Issue (10): 1233-1238.doi: 10.13249/j.cnki.sgs.2014.010.1233

1961~2010年辽河三角洲参考蒸散发变化特征及主导因子分析

王炳亮^1,²(), 李国胜^2,³()

1. 宁夏大学土木与水利工程学院,宁夏银川 750021
2. 中国科学院地理科学与资源研究所,北京 100101
3. 中国地质调查局滨海湿地生物地质重点实验室,山东青岛 266071

收稿日期:2013-07-16 修回日期:2013-10-14 出版日期:2014-10-10 发布日期:2014-10-10
作者简介:
作者简介：王炳亮（1977-）,男,宁夏灵武人,博士研究生,从事生态水文方面研究。E-mail: wangscott4000@163.com
基金资助:
国家科技支撑计划课题(2012BAC21B01)、中国地质调查局地质调查项目(GZH201200503)、国家自然科学基金（51369025）和教育部创新团队（IRT1067）资助

Quantification of the Reasons for Reference Evapotranspiration Changes over the Liaohe Delta, Northeast China

Bing-liang WANG^1,²(), Guo-sheng LI^2,³()

1. College of Civil and Hydropower Engineering, Ningxia University, Yinchuan, Ningxia 750021, China
2. Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
3. Key Laboratory of Coastal Wetland Biogeosciences, China Geologic Survey, Qingdao, Shandong 266071, China

Received:2013-07-16 Revised:2013-10-14 Online:2014-10-10 Published:2014-10-10

摘要/Abstract

摘要：

基于FAO Penman-Monteith 公式计算了辽河三角洲区域19个气象站1961~2010年逐日参考蒸散发（ET₀）对平均气温、风速、相对湿度和太阳辐射的敏感系数,结合各气象因子的多年变化定量分析参考蒸散发变化的原因。结果表明：气温对ET₀变化为正贡献,风速、相对湿度和太阳辐射为负贡献;综合考虑敏感性分析和趋势分析的结果,滨海干湿过渡区气象因子对参考蒸散发变化的贡献由大到小依次是风速、平均气温、太阳辐射和相对湿度;半湿润亚区由大到小依次是风速、平均气温、相对湿度和太阳辐射;半干旱亚区由大到小依次是平均气温、太阳辐射、风速和相对湿度。

关键词: 参考蒸散发, 主导因子, 敏感系数, 辽河三角洲

Abstract:

Based on the FAO-56 Penman-Monteith formula, reference evapotranspiration (ET₀) was calculated using a 50-year meteoro1ogical dataset at 19 meteorological stations over the Liaohe Delta during the period 1961-2010. The change of ET₀ was studied by analyzing the sensitivity coefficients of ET₀ to air temperature, wind speed, relative humidity and solar radiation together with their relative changes. The results show that variations present among the 3 sub-region (semi-humidity sub-region, semi-arid sub-region and coastal zone). The positive contribution of temperature and the negative contribution of wind speed and relative humidity and solar radiation are observed in 3 sub-regions. Therefore, contribution of wind is biggest and contribution of relative humidity is smallest because of its little relative change. Wind speed and air temperature are the determining factors of ET₀ in coastal zone and semi-humidity sub-region, meanwhile air temperature and solar radiation are the determining factors of ET₀ in semi-arid sub-region.

Key words: reference evapotranspiration, determining factor, sensitivity analysis, the Liaohe Delta

中图分类号:

P468

王炳亮, 李国胜. 1961~2010年辽河三角洲参考蒸散发变化特征及主导因子分析[J]. 地理科学, 2014, 34(10): 1233-1238.

Bing-liang WANG, Guo-sheng LI. Quantification of the Reasons for Reference Evapotranspiration Changes over the Liaohe Delta, Northeast China[J]. SCIENTIA GEOGRAPHICA SINICA, 2014, 34(10): 1233-1238.

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	地理科学

	平均气温	风速	相对湿度	太阳辐射	ET₀
半湿润亚区	14.17	-40.53	2.07	-2.88	-7.17
半干旱亚区	17.03	-3.97	0.51	-7.43	0.44
滨海干湿过渡区	15.11	-39.51	1.87	-7.49	- 8.72

	S_tm	S_u	S_rh	S_rs
半湿润亚区	0.261	0.258	-0.781	0.307
半干旱亚区	0.236	0.310	-0.660	0.258
滨海干湿过渡区	0.259	0.276	-0.787	0.281

	平均气温	风速	相对湿度	太阳辐射	总贡献	ET₀实际变化
半湿润亚区	3.70	-10.46	-1.62	-0.88	-9.26	-7.17
半干旱亚区	4.02	-1.23	-0.34	-1.92	0.53	0.44
滨海干湿过渡区	3.91	-10.90	-1.47	-2.10	-10.57	-8.72

1961~2010年辽河三角洲参考蒸散发变化特征及主导因子分析

Quantification of the Reasons for Reference Evapotranspiration Changes over the Liaohe Delta, Northeast China

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