水利学报Issue(2)：183-190,8.
川中丘陵区参考作物蒸发蒸腾量近60年变化成因研究
Attribution analyses of ET0 change in hilly area of central Sichuan in recent 60 years
摘要
Abstract
Reference crop evapotranspiration (ET0) from 1954 to 2010 was estimated with FAO-56 Pen⁃man-Monteith equation in four stations in hilly area of central Sichuan,China. The causes for ET0 change were analyzed by using the contribution rate analysis method and partial correlation analysis method. The re⁃sults show that the trend of ET0 declined;the temperature rose significant;relative humidity has a signifi⁃cant decrement;and sunshine duration and wind speed decrease very significantly. Climate tends to warm⁃ing and drying during the past 57 years. The negative contribution of decreased sunshine duration and wind speed to ET0 trend is greater than the positive contribution of decreased relative humidity and increased tem⁃perature,inducing ET0 to decline. Consequently,the change of ET0 is primarily attributed to the significant⁃ly decreased sunshine duration and wind speed. In addition, the controlling meteorological variables affect⁃ing ET0 change through partial correlation analysis is in accordance with the result by contribution analysis.关键词
FAO-56/Penman-Monteith/川中丘陵区/ET0/贡献率分析/偏相关系数分析Key words
FAO-56 Penman-Monteith equation/hilly area of central Sichuan/ET0/contribution rate anal-ysis/partial correlation coefficient analysis分类
农业科技引用本文复制引用
赵璐,梁川,崔宁博,刘利文..川中丘陵区参考作物蒸发蒸腾量近60年变化成因研究[J].水利学报,2013,(2):183-190,8.基金项目
国家自然科学基金项目(51009101) （51009101）
水利部公益性项目(201101038) （201101038）
南方丘区节水农业研究四川省重点实验室开放基金项目(CJS201201) （CJS201201）
