干旱区生态环境知识资源中心(Arid): 乌兰布和沙区沙棘光合蒸腾日变化与主要环境因子的关系

Arid

	乌兰布和沙区沙棘光合蒸腾日变化与主要环境因子的关系
其他题名	Daily dynamics of photosynthetic and transpiration rates of Hippophae rhamnoides and their relationships with environmental factors in Ulan Buh desert
	陈海玲; 章尧想; 刘芳; 徐军; 葛根巴图; 马迎宾; 段娜; 黄雅茹
来源期刊	甘肃农业大学学报
ISSN	1003-4315
出版年	2015
卷号	50 期号:2 页码:116-121
中文摘要	在自然条件下,利用LI-6400光合仪,测定了乌兰布和沙漠6个沙棘品种的光合蒸腾特性及主要环境因子的日变化,并采用相关系数、通径系数和决策系数探讨了主要环境因子对沙棘品种光合蒸腾日变化的影响.结果表明: 6个沙棘品种的净光合速率呈典型的"双峰"曲线,在13∶00左右有明显的光合"午休"现象;’白丘’与’深秋红’蒸腾速率日变化呈"双峰"曲线,其余4个沙棘品种呈"单峰"曲线;PAR是直接影响沙棘光合蒸腾速率日变化的最大环境因子 ,并起主要决策作用;C_a 、T_a和RH间接影响沙棘的光合蒸腾速率日变化,是主要限制因子.
英文摘要	Under natural conditions,diurnal changes of photosynthetic and transpiration rate of six sea-buckthorn cultivars and main environmental factors were measured by using LI-6400 photosynthesis system.The correlation coefficient,path coefficient and decision coefficient were used to determine the effects of main environmental factors on the diurnal changes of photosynthetic and transpiration rate of sea-buckthorn cultivars.The results were as follows:Diurnal change of photosynthetic rate of six sea-buckthorn cultivars showed bimodal pattern and an obvious midday depression at 13∶00 o’clock.Diurnal change of transpiration rate of ’Baiqiu’ and ’Shenqiuhong’ both showed bimodal pattern,which of the others showed unimodal pattern.PAR had the greatest effect on the diurnal dynamics of photosynthetic and transpiration,and was the primary determining factor.C_a,T_a and RH affected photosynthetic and transpiration mainly through their acting on PAR,and were the main limiting factors.
中文关键词	沙棘 ; 光合速率 ; 蒸腾速率 ; 环境因子
英文关键词	Hippophae rhamnoides L. photosynthetic rate transpiration rate environment factor
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:5434260
来源机构	中国林业科学研究院沙漠林业实验中心
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232594
作者单位	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	陈海玲,章尧想,刘芳,等. 乌兰布和沙区沙棘光合蒸腾日变化与主要环境因子的关系[J]. 中国林业科学研究院沙漠林业实验中心,2015,50(2):116-121.
APA	陈海玲.,章尧想.,刘芳.,徐军.,葛根巴图.,...&黄雅茹.(2015).乌兰布和沙区沙棘光合蒸腾日变化与主要环境因子的关系.甘肃农业大学学报,50(2),116-121.
MLA	陈海玲,et al."乌兰布和沙区沙棘光合蒸腾日变化与主要环境因子的关系".甘肃农业大学学报 50.2(2015):116-121.