摘要
为促进乌柳在高海拔冻土层地区的生长,在不同的特定气温下,通过使用自控温电热带土壤增温措施对土壤进行增温试验,调查乌柳在不同气温和不同土温下的光合指标,探究不同气温和土温与乌柳生长的相关性。结果表明,乌柳叶片的净光合速率达到最大值13.884μmol/(m^2·s)时的土温和气温分别为17.6℃和22.1℃。最适宜乌柳叶片净光合速率的土壤温度范围是15-20℃,气温范围是20-25℃。
In order to promote the growth of Salix cheilophila permafrost area in high altitude,in particular under different temperature,by using the automatic temperature control electric heating measure of tropical soil on the soil temperature test investigation of Salix cheilophila under different air temperatures and different temperature of the photosynthetic index,correlation between air temperature and soil temperature to the Salix growth was explored to determine the most suitable soil and air temperatures for Salix cheilophila photosynthesis,to facilitate urban greening.The results showed that the net photosynthetic rate of Salix cheilophila light reaches the maximum value of 13.884μmol/(m 2·s)when the soil temperature and temperature were 17.6℃and 22.1℃,respectively.The most suitable soil temperature range of the leaf net photosynthetic rate is 15-20℃,the air temperature range is 20-25℃.
作者
李焱
袁雅丽
司剑华
LI Yan;YUAN Ya-li;SI Jian-hua(College of Forestry,Beijing Forestry University,Beijing 100083,P.R.China;College of Agriculture and Animal Husbandry,Qinghai University,Xining Qinghai 810016,P.R.China)
出处
《西部林业科学》
CAS
北大核心
2018年第2期70-74,80,共6页
Journal of West China Forestry Science
基金
青海省天峻县高海拔冻土层造林示范项目(2011012)
关键词
乌柳
气温
土温
光合指标
Salix cheilophila
temperature
soil temperature
photosynthetic index
