东北林业大学学报
東北林業大學學報
동북임업대학학보
JOURNAL OF NORTHEAST FORESTRY UNIVERSITY
2010年
3期
50-51,75
,共3页
胡丁猛%许景伟%王晓磊%李传荣%路姗姗
鬍丁猛%許景偉%王曉磊%李傳榮%路姍姍
호정맹%허경위%왕효뢰%리전영%로산산
树种%光合反应特性%村庄绿化%盐碱地
樹種%光閤反應特性%村莊綠化%鹽堿地
수충%광합반응특성%촌장녹화%염감지
Tree species%Photosynthetic characteristics%Village afforestation%Saline-alkali soil
对盐胁迫条件下3个树种的光合速率、蒸腾速率、气孔导度等生理指标进行测定和分析.结果表明,构树光合速率与光强和温度呈正相关关系;光补偿点较低,利用弱光的能力较强;蒸腾速率随温度升高而加快;降温增湿能力强;生态效应显著,非常适合盐碱地村庄绿化.臭椿和君迁子对盐胁迫有一定的抗性,是盐碱地村庄绿化的备选树种.
對鹽脅迫條件下3箇樹種的光閤速率、蒸騰速率、氣孔導度等生理指標進行測定和分析.結果錶明,構樹光閤速率與光彊和溫度呈正相關關繫;光補償點較低,利用弱光的能力較彊;蒸騰速率隨溫度升高而加快;降溫增濕能力彊;生態效應顯著,非常適閤鹽堿地村莊綠化.臭椿和君遷子對鹽脅迫有一定的抗性,是鹽堿地村莊綠化的備選樹種.
대염협박조건하3개수충적광합속솔、증등속솔、기공도도등생리지표진행측정화분석.결과표명,구수광합속솔여광강화온도정정상관관계;광보상점교저,이용약광적능력교강;증등속솔수온도승고이가쾌;강온증습능력강;생태효응현저,비상괄합염감지촌장녹화.취춘화군천자대염협박유일정적항성,시염감지촌장녹화적비선수충.
An experiment was conducted to determine and analyse the photosynthetic rate, transpiration rate, and stomatal conductance of Broussonetia papyri/era, AUanthus allissima, and Diospyros lotus in saline-alkali soil in Shandong Province.Results showed that the diurnal variation of photosynthetic rate for B. papyrifera with low light compensation point exhibited positive correlations with air temperature and light intensity, so the weak light can be used effectively. The transpiration rate of B. papyrifera increased with increasing temperature, indicating its ability to increase air temperature and decrease relative humidity. B. papyrifera is suitable for village afforestation in the saline-alkali soil due to its remarkable ecological effect and high resistance. A. altissima and D. lotus can also be applied to village afforestation in the saline-alkali soil because of their resistance to salt stress.