中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 1961—2010年安徽省参考作物蒸散时空变化特征及成因 应用生态学报 2014,25 (12) 3619-3626
Position: Home > Articles > Temporal-spatial variations of reference evapotranspiration in Anhui Province and the quantification of the causes Chinese Journal of Applied Ecology 2014,25 (12) 3619-3626

1961—2010年安徽省参考作物蒸散时空变化特征及成因

作  者：
曹雯;段春锋;姚筠;岳伟
单  位：
安徽省大气科学与卫星遥感重点实验室;安徽省气象科学研究所;安徽省气候中心
关键词：
参考作物蒸散;时空变化;成因;安徽省
摘  要：
基于联和国粮农组织推荐的Penman-Monteith公式和60个台站1961—2010年逐日气象观测资料,估算了安徽省的参考作物蒸散量(ET0),在对ET0空间分布特征和时间演变规律进行分析的基础上,定量探讨了安徽省影响ET0变化的主导因素.结果表明:研究期间,安徽省ET0的年平均值约为878.58 mm·a-1,夏季最大,冬季最小.年平均ET0呈现由北向南、由低海拔向高海拔递减的空间分布特征.ET0的变化主要归因于日照时数和风速,而气温和相对湿度的作用较小.由于日照时数和风速的共同负贡献明显超过气温和相对湿度的共同正贡献,导致安徽省ET0整体上以-1.61 mm·a-1的速率显著下降.ET0在春季呈不显著的微弱上升趋势;夏季ET0以-1.37 mm·a-1的速率显著下降;秋、冬季的ET0微弱下降,但趋势不显著.春、秋、冬季ET0变化的主导因子是风速;夏季的主导因子是日照时数.ET0变化的主导因子存在明显空间差异.有36.7%站点的年平均ET0变化的主导因子是风速,主要分布在淮北南部和沿淮地区;其他大部分地区的主导因子都是日照时数.
译  名：
Temporal-spatial variations of reference evapotranspiration in Anhui Province and the quantification of the causes
作  者：
CAO Wen;DUAN Chun-feng;YAO Yun;YUE Wei;Anhui Meteorological Institute;Anhui Province Atmospheric Science and Satellite Remote Sensing Key Laboratory;Anhui Climate Center;
关键词：
reference evapotranspiration;;temporal-spatial variations;;causes;;Anhui Province
摘  要：
In this paper,daily reference evapotranspiration( ET0) was computed with the recommended FAO-56 Penman-Monteith equation for Anhui Province using data collected 60 weather stations during 1961 to 2010 and its temporal-spatial variations were characterized. The determining factors in ET0 trends were inquired into through partial derivative quantification analysis for the study region. Results showed that the mean annual ET0 was 878. 58 mm·a- 1over the whole region during the study period. ET0 was the highest in summer and the lowest in winter. The mean annual ET0 decreased from the north to the south and from low altitude regions to high altitude regions.Both sunshine duration and wind speed were the dominant factors contributing to the interannual change of ET0,with less contribution from air temperature or relative humidity. The annual ET0 showed a general decline at a rate of- 1. 61 mm·a- 1owing to a more negative contribution of sunshine duration and wind speed than a positive contribution of air temperature and relative humidity.ET0 increased insignificantly in spring and decreased slightly in both autumn and winter. However,it decreased significantly at a rate of- 1. 37 mm·a- 1in summer. The main impacting factor was wind speed in spring,autumn and winter,but it was sunshine duration in summer. Great differences in the determining factors of the mean annual ET0 existed from area to area in Anhui Province. The wind speed was the determining factor for 36. 7% of the whole stations distributing in the southern part of the area north to the Huaihe River and the area along the Huaihe River,while the sunshine duration was the determining factor for the other regions.

相似文章

导出引用
计量
文章访问数: 10
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46