干旱区生态环境知识资源中心(Arid): 风沙灾害对南疆棉花光合特性的影响

Arid

	风沙灾害对南疆棉花光合特性的影响
其他题名	Effects of Wind-Blown Sand Disaster on the Cotton Photosynthetic Character in South Xinjiang
	王家强 1; 郑德明 1; 柳维扬 1; 赵湛 2
来源期刊	环境科学与技术
ISSN	1003-6504
出版年	2014
卷号	37 期号:8 页码:47-53
中文摘要	在干旱半干旱风沙区,风沙流活动强烈是其主要环境特征之一, 风沙流对植物的影响很大, 是棉花栽培及生长发育的重要制约因素。该研究通过设置不受风沙影响的棉花和受风沙影响的棉花2组处理3个重复,测定棉花不同生育期的光合参数,探讨风沙对棉花光合特性的影响,结果表明:在苗期和蕾期风沙对棉花光合参数的影响非常明显,而在棉花花铃期的差异不显著,因此棉花受风沙影响的阶段主要在苗期和蕾期,而在花铃期影响不大;受风沙影响的棉花叶片会在风沙的作用下受到伤害,并在叶片上留下伤痕,新伤棉花功能叶片的净光合速率(P_n)、气孔导度(C_s)、胞间CO_2浓度(C_i)和蒸腾速率(T_r)要明显低于旧伤和未受伤的棉花;风沙过后的降尘会对棉花叶片的光合作用参数有很大的影响;单位叶面积降尘量与叶片净光合速率(P_n)、气孔导度(C_s)、胞间CO_2浓度(C_i)和蒸腾速率(T_r)都表现为显著负相关。
英文摘要	In arid and semi -arid sandy area, strong wind -sand flow activities as one of the main environmental characteristics, has great effect on the plants, they are the important restraint factors for cotton cultivation and growth. Two groups with three replicates were set for cotton which is not affected by wind-blown sand and affected by wind-blown sand, photosynthetic parameters was determined at different growing stages of cotton, and the effect on photosynthetic characteristics of cotton was investigated. Results showed that cotton photosynthetic parameters affected by wind-blown sand were significant in the seedling stage and bud stage, but there were no significant difference in the blooming stage. Cotton leaf will be affected by wind-blown sand, with leave scar on the blade. Photosynthetic rate(P_n),stomatal conductance(C_s), intercellular CO_2 concentration(C_i) and transpiration rate(T_r) of new wounded cotton function leaf were significantly lower than that of the old wounds and uninjured. Dust falls have a great effect on cotton leaf photosynthesis parameters after the wind-blown sand. Unit leaf area dustfalls show significant negative correlations with photosynthetic rate(P_n), stomatal conductance(C_s), intercellular CO_2 concentration(C_i) and transpiration rate(T_r).
中文关键词	风沙 ; 棉花 ; 光合
英文关键词	wind-blown sand cotton photosynthesis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5212843
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/231366
作者单位	1.塔里木大学植物科学学院, 阿拉尔, 新疆 843300, 中国; 2.第一师十二团, 阿拉尔, 新疆 843300, 中国
推荐引用方式 GB/T 7714	王家强,郑德明,柳维扬,等. 风沙灾害对南疆棉花光合特性的影响[J],2014,37(8):47-53.
APA	王家强,郑德明,柳维扬,&赵湛.(2014).风沙灾害对南疆棉花光合特性的影响.环境科学与技术,37(8),47-53.
MLA	王家强,et al."风沙灾害对南疆棉花光合特性的影响".环境科学与技术 37.8(2014):47-53.