1963—2018年中国垂柳和榆树开花始期积温需求的时空变化
陶泽兴1(
), 葛全胜1,2, 王焕炯1()
), 葛全胜1,2, 王焕炯1()
Spatio-temporal variations in the thermal requirement of the first flowering dates of Salix babylonica and Ulmus pumila in China during 1963-2018
TAO Zexing1(), GE Quansheng1,2, WANG Huanjiong1()
), GE Quansheng1,2, WANG Huanjiong1()
图4. 1963—2018年垂柳和榆树开花始期积温需求在贵阳(a、b)、西安(c、d)和牡丹江(e、f)的年际变化
注：slope1、slope2和slope3分别为GDD、GDDS和GDH算法的积温需求变化趋势。
Fig. 4. Interannual variation of thermal requirements for the first flowering dates of Salix babylonica and Ulmus pumila at Guiyang (a, b), Xi'an (c, d) and Mudanjiang (e, f) from 1963 to 2018
