An Investigation on Frozen Damage of Walnut Trees in Shaanxi Province
The situation and characterization of spring frozen damage for walnut trees in Shaanxi Province was studied to obtain basic imformation for prevention.Field investigation was conducted in the walnut gardens in three areas of Shaanxi,i.e.,Shangluo,Guanzhong,and Weibei.The results demonstrated that the walnut yield was widely affected by the spring frozen damage in 2013,especially in Weibei area with a yield lost of more than 60％.The most severe damage was found in the walnut gardens located at top of slope and shady slope,and also in those without proper management.For a single walnut tree,the most severe damage was found to be the branches direction niches at west and north of a canopy and the middle and bottom of a canopy.The results above indicated that the location choosing and management for walnut gardens were important for frozen damage prevention for walnut trees.
walnutfrozen damageShaanxi Provincecharacterization of walnut frozen damage
国家科技期刊平台
NSTL
万方数据
维普
