[1]刘茂秀,史军辉,王新英,等. 微咸水灌溉下3种耐盐植物光合特性及水分利用效率比较研究[J].西北林学院学报,2012,27(02):6-12.
　LIU Mao-xiu,SHI Jun-hui,WANG Xin-ying,et al. Photosynthetic Characteristics and Water Use Efficiency of Three Species of Desalination Plant Irrigated by Saline Water[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2012,27(02):6-12.
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 微咸水灌溉下3种耐盐植物光合特性及水分利用效率比较研究()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第27卷
期数:
2012年02期
页码:
6-12
栏目:
出版日期:
2012-03-30

文章信息/Info

Title:
 Photosynthetic Characteristics and Water Use Efficiency of Three Species of Desalination Plant Irrigated by Saline Water
文章编号:
1001-7461(2012)02-0006-07
作者:
 刘茂秀; 史军辉; 王新英; 史彦江
 （新疆林业科学院，新疆 乌鲁木齐 830046）
Author(s):
 LIU Mao-xiu;  SHI Jun-hui;  WANG Xin-ying;  SHI Yan-jiang
 （Xinjiang Academy of Forestry Science, Urumqi, Xinjiang 830046, China）
关键词:
 ; 耐盐植物; 光合特性; 水分利用效率
Keywords:
 ; desalination plant;  photosynthetic characteristics;  water use efficiency
分类号:
S718.43
文献标志码:
A
摘要:
以微咸水灌溉下耐盐植物胡杨、柽柳和四翅滨藜为研究对象，采用Li-6400便携式光合测定系统对其主要光合参数及水分利用效率等进行了观测及比较分析。结果表明：（1）光强在0～2 000 μmol·m-2·s-1范围内，净光合速率（Pn）和气孔导度（Gs）随光强变化均表现为柽柳始终处于较高水平，胡杨次之，四翅滨藜较小；（2）光强为400~2 000 μmol·m-2·s-1时，3种耐盐植物的蒸腾速率（Tr）、胞间CO2浓度（Ci）大小顺序为柽柳＞胡杨＞四翅滨藜，而水分利用效率（WUE）却表现为四翅滨藜＞柽柳＞胡杨；（3）光强在0~400 μmol·m-2·s-1时，蒸腾速率（Tr）和水分利用效（WUE）表现为胡杨较高，柽柳次之，四翅滨藜较小，但是四翅滨藜的胞间CO2浓度（Ci）高于胡杨和柽柳。综合比较3种耐盐植物中，四翅滨藜的水分利用效率较高，蒸腾耗水较少，属于节水型树种；而胡杨和柽柳的水分利用效率较低，蒸腾耗水较高，属于相对耗水型树种。此外，四翅滨藜、胡杨和柽柳能适应高温、光照强烈和干旱的环境，在一定程度上表明其具有较强的逆境适应性。

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