干旱区生态环境知识资源中心(Arid): 乌兰布和沙漠东北部不同起源的5种沙生灌木的光合及生长特性

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	乌兰布和沙漠东北部不同起源的5种沙生灌木的光合及生长特性
其他题名	The Differences of Growth and Photosynthetic Traits of Five Shrubs Species from Two Origins in the Northeastern Ulanbuh Desert
	李清河 1; 赵英铭 2; 刘建锋 1; 赵秀莲 1; 江泽平 1
ISSN	1001-1498
出版年	2008
卷号	21 期号:3 页码:357-361
中文摘要	在乌兰布和沙漠地区，研究了中沙冬青、梭梭、白刺、霸王、柠条等5种沙生灌木的生理生长指标的差异性，结果表明：这些灌木树种的净光合速率、气孔导度、蒸腾速率、水分利用效率等气体交换特征和株高、地径、冠幅等生长指标在不同起源之间均具有显著差异，且人工起源植株的气体交换特征均比天然起源植株的大，而生长指标则均比天然起源植株的小；天然林和人工林中不同树种的水分利用效率的差异均不显著，但不同树种的净光合速率、气孔导度、胞间CO_2浓度、蒸腾速率等气体交换特征和株高、地径、冠幅等生长指标差异却很显著。在测定光响应曲线和CO_2响应曲线基础上求算出的最大光合速率、表观量子效率、光补偿点、光饱和点、暗呼吸速率、CO_2补偿点和羧化效率等光合响应曲线参数在不同树种以及不同起源之间的变化也很大，并据此提出不同树种的人工林栽培及天然林保护措施。
英文摘要	Five dominant species of natural and artificial-origins shrubs in the northeastern Ulanbuh Desert, Ammopiptanthus mongolicus , Haloxylon am modendron, Nitraria tangutorum , Zygophyllum xanthoxylum , Caragana korshinskii, were chosen for the research. The photosynthetic gas exchange indices, photosynthetic response curves and growth indices were measured. The differences among different species and origins were analyzed. The ANOVA results showed that between natural and artificial origins, the remarkable differences exist in the gas exchange indices, net photosynthetic rate （ Pn ）, stomatal conductance （ Gs ） , transpiration rate （ E ）, water utilization efficiency（ WUE）, and the growth indices, shrub height（H）, shrub diameter（D）, shrub canopy（C）, and the gas exchange indices of artificial origins were bigger than that of natural origins, but the growth indices smaller than natural origins. Among the five species, the difference of WUE is not remarkable, but the remarkable differences exist in the gas exchange indices, Pn, Gs, Ci, E, and the growth indices, H, D, C. Some photosynthetic response curves parameters, such as maximum photosynthetic rate, apparent quantum yield, light compensation point, light saturation point, dark respiration rate, CO_2 compensation point, carboxylation efficiency, were calculated based on the measured light and CO_2 response curves for five shrubs of two origins. And the diversification of the photosynthetic response curves parameters for different species and origins exist. And some suggestions for artificial shrub cultivation and natural shrub protection measures were put forward.
中文关键词	乌兰布和沙漠 ; 沙生灌木 ; 起源 ; 光合特性
英文关键词	Ulanbuh Desert psammophilic shrub origin photosynthetic traits
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:3286424
来源机构	中国林业科学研究院沙漠林业实验中心 ; 中国林业科学研究院林业研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222574
作者单位	1.中国林业科学研究院林业研究所, 林木培育重点实验室, 北京 100091, 中国; 2.中国林业科学研究院沙漠林业实验中心, 磴口, 内蒙古 015200, 中国
推荐引用方式 GB/T 7714	李清河,赵英铭,刘建锋,等. 乌兰布和沙漠东北部不同起源的5种沙生灌木的光合及生长特性[J]. 中国林业科学研究院沙漠林业实验中心, 中国林业科学研究院林业研究所,2008,21(3):357-361.
APA	李清河,赵英铭,刘建锋,赵秀莲,&江泽平.(2008).乌兰布和沙漠东北部不同起源的5种沙生灌木的光合及生长特性.,21(3),357-361.
MLA	李清河,et al."乌兰布和沙漠东北部不同起源的5种沙生灌木的光合及生长特性".21.3(2008):357-361.