DYNAMIC SIMULATION OF DIURNAL COURSE OF STEM DIAMETER OF APPLE TREE (MALUS DOMESTICA BORKH. CV. 'FUJI')

被引：0
作者：
Yin, Zhongdong [1 ,2 ]
Chen, Jihu [1 ,3 ]
Gao, Zhaoquan [1 ,4 ]
机构：
[1] Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100081, Peoples R China
[2] Beijing Forestry Univ, Coll Soil & Water Conservat, Beijing 100083, Peoples R China
[3] Minist Water Resources, Comprehens Business Bur, Beijing 100053, Peoples R China
[4] Beijing Vocat Coll Agr, Beijing 102442, Peoples R China
来源：
BANGLADESH JOURNAL OF BOTANY | 2018年 / 47卷 / 03期
关键词：
Simulation; Diurnal course; Stem diameter; Apple; SOIL-PLANT SYSTEM; WATER STORAGE; TRANSPIRATION; LEAF; FLOW;
D O I：
暂无
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Using soil-plant-atmosphere continuum (SPAC) theory and stem volume equation, dynamic changes in stem diameters of apple trees (Malus domestica Borkh. Cv. 'Fuji') were simulated. Numerical simulation results indicate that stem water potential fluctuated sinusoidally and gently on sunny and cloudy days, respectively. Fluctuations in the amplitude and trend were caused by sap flow and storage resistance, respectively. The change in stem-stored water was proportional to the change rate in water potential. Stem diameter increased with fluctuations in clear day; moreover, it varied slightly on cloudy days. Changes in stem diameter were caused by changes in water potential, which was determined by meteorological factors, soil water potential, and characteristics of plants.
引用
收藏
页码：549 / 555
页数：7
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