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当前位置: 首页 > 文章 > 西藏两种杨树光合特性及其释氧价值评估 中南林业调查规划 2014 (2) 56-59
Position: Home > Articles > Valuation on Photosynthetic Characteristics and Oxygen Release of Two Kinds of Poplar in Tibet Central South Forest Inventory and Planning 2014 (2) 56-59

西藏两种杨树光合特性及其释氧价值评估

作  者：
普罗;边巴多吉;普布顿珠;旦增
单  位：
西藏自治区林业调查规划研究院
关键词：
藏川杨;北京杨;光合特性;生态效益
摘  要：
采用Li-Cor—6400光合仪对藏川杨和北京杨的日光合特性进行测定,结果表明:藏川杨和北京杨的日光合进程均表现为双峰曲线,藏川杨与北京杨的净光合速率日变化最大峰值均在14:00出现,分别为16.62μmol/(m2·s)和15.52μmol/(m2·s);两种杨树的蒸腾速率日变化均呈单峰曲线,峰值均出现在12:00,藏川杨峰值为8.47 mmol/(m2·s),北京杨峰值是8.74 mmol/(m2·s);单株藏川杨的年释氧生态价值高于北京杨,分别为348元和210元。
译  名：
Valuation on Photosynthetic Characteristics and Oxygen Release of Two Kinds of Poplar in Tibet
作  者：
Puluo;Bianba Duoji;Pubu Dunzhu;Danzeng;Forest Inventory and Planning Institute of Tibet Autonomous Region;
关键词：
Populus szechuanica;;Populus beijingensis;;photosynthetic characteristics;;ecological benefits
摘  要：
Diurnal photosynthetic characteristics of Populus szechuanica and Populus beijingensis were measured by using Li-Cor-6400 photosynthesis system. The results showed that: Daily photosynthetic process of both kinds of Poplar showed bimodal curve,diurnal variation peak of net photosynthetic rate of Populus szechuanica and Populus beijingensis appeared in 14: 00,the peak data were 16. 62 μmol /( m2·s) and 15. 52 μmol/( m2·s),respectively. Diurnal variation of transpiration rate of two poplar both showed single peak curve,and peak were 8. 47 mmol /( m2·s) and 8. 74 mmol/( m2·s),respectively,occurred at 12: 00,Annual oxygen releasing ecological value per tree of Populus szechuanica was higher than that of Populus beijingensis,which was 348 yuan and 210 yuan.

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