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2. 1963—2018年各站点垂柳和榆树开花始期的平均积温需求
Fig. 2. Thermal requirements for the first flowering dates of Salix babylonica and Ulmus pumila at each site averaged from 1963 to 2018
