水土保持通报2012，Vol.32Issue(2)：84-89,6.
地下水埋深及矿化度对多枝柽柳幼苗光合特征及生长的影响
Effects of Groundwater Depth and Mineralization Degree on Photosynthesis and Growth of Tamarix Ramosissima Seedlings
摘要
Abstract
The effects of groundwater depth and mineralization on the photosynthetic characteristics and growth of T.ramosissima were studied in the treatments with factors of mineralization（1.00,1.0～3.0,and 3.0～10.0 g/L） and groundwater depth（20,60,and 100 cm） for a duration of 60 days in the national research station of Akesu oasis farmland ecosystem.The results indicate that the combination of groundwater depth and mineralization showed significant effects on the photosynthetic characteristics and growth of T.ramosissima seedlings.According to the results obtained from the experiment,it was found that with groundwater at 20 cm depth and saline condition,the plant showed the highest maximum photosynthetic rate（66.93 μmol/（m2·s））,stomatal conductance,water use efficiency and carboxylation efficiency.The values of maximum net photosynthetic rate,apparent quantum yields,light saturation point and dark respiration rate were affected by the variations of groundwater depth and mineralization.These results revealed that with 20 cm watertable and saline condition,the seedlings of T.ramosissima show stronger competency and have higher capacity to accommodate the variations of the environment.关键词
多枝柽柳幼苗/地下水埋深/矿化度/光合特征Key words
Tamarix ramosissima seeding/groundwater depth/mineralization/photosynthetic characteristics分类
农业科技引用本文复制引用
王鹏,赵成义,李君..地下水埋深及矿化度对多枝柽柳幼苗光合特征及生长的影响[J].水土保持通报,2012,32(2):84-89,6.基金项目
国家重点基金项目“胡杨林生态格局与过程对洪水漫溢、人工灌溉的响应与调控” （）
中国科学院“西部之光”人才培养计划西部博士专项 （）
国家自然科学基金项目 （）
