中南林业调查规划
中南林業調查規劃
중남임업조사규화
CENTRAL SOUTH FOREST INVENTORY AND PLANNING
2014年
2期
56-59
,共4页
普罗%边巴多吉%普布顿珠%旦增
普囉%邊巴多吉%普佈頓珠%旦增
보라%변파다길%보포돈주%단증
藏川杨%北京杨%光合特性%生态效益
藏川楊%北京楊%光閤特性%生態效益
장천양%북경양%광합특성%생태효익
Populus szechuanica%Populus beijingensis%photosynthetic characteristics%ecological benefits
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。
採用Li-Cor-6400光閤儀對藏川楊和北京楊的日光閤特性進行測定，結果錶明：藏川楊和北京楊的日光閤進程均錶現為雙峰麯線，藏川楊與北京楊的淨光閤速率日變化最大峰值均在14：00齣現，分彆為16.62μmol/（m2·s）和15.52μmol/（m2·s）；兩種楊樹的蒸騰速率日變化均呈單峰麯線，峰值均齣現在12：00，藏川楊峰值為8.47 mmol/（m2·s），北京楊峰值是8.74 mmol/（m2·s）；單株藏川楊的年釋氧生態價值高于北京楊，分彆為348元和210元。
채용Li-Cor-6400광합의대장천양화북경양적일광합특성진행측정，결과표명：장천양화북경양적일광합진정균표현위쌍봉곡선，장천양여북경양적정광합속솔일변화최대봉치균재14：00출현，분별위16.62μmol/（m2·s）화15.52μmol/（m2·s）；량충양수적증등속솔일변화균정단봉곡선，봉치균출현재12：00，장천양봉치위8.47 mmol/（m2·s），북경양봉치시8.74 mmol/（m2·s）；단주장천양적년석양생태개치고우북경양，분별위348원화210원。
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 1 4:00,the peak data were 1 6.62 μmol/(m2 · s)and 1 5.52 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 1 2:00,Annual oxygen releasing ecological value per tree of Populus szechuanica was higher than that of Populus beijingensis,which was 348 yuan and 21 0 yuan.
