摘要
主要研究了苗木生长过程中的水分动态。在一年内苗木的含水量随气温上升而增多,在一天内则因温度升高而减少,苗木的水分含量也受土壤水分的影响。观测了起苗后苗木的失水规律和失水对苗木成活的影响,以及栽植后苗根的吸水规律和不同土壤含水量对苗木吸水、成活的影响。
Survival of outplanted seedlings is not only affected by external factors but is also related to internal factors. Seedling vigor is the internal factor. Both factors are important and one factor could not function well without the other. This study mainly dealt with seedling moisture status during the growing period and demonstrated that seedling moisture content increased yearly but decreased daily as air temperature rose; also, the seedling moisture content was affected by soil water. The patterns of seedling water-loss after lifting and the influence of water-loss on survival were investigated. Patterns of seedling water-absorption, influences of different soil moisture contents on seedling wat-erabsorption, and survival after outplanting were tested.
出处
《北京林业大学学报》
CAS
1988年第A02期14-21,共8页
Journal of Beijing Forestry University
关键词
北京地区
造林成活率
生活力
含水量
outplanted seedling survival, vigor, water content of see- dling, water loss, water absorption
