干旱区生态环境知识资源中心(Arid): Responses of physiological characteristics of annual C4 herbs to precipitation and wind changes in semi-arid sandy grassland, northern China

Arid

DOI	10.3161/15052249PJE2020.68.2.002
	Responses of physiological characteristics of annual C4 herbs to precipitation and wind changes in semi-arid sandy grassland, northern China
	Sun, Shanshan; Liu, Xinping; He, Yuhui; Lv, Peng; Chelmeg; Zhang, Lamei; Wei, Shuilian
通讯作者	Liu, XP
来源期刊	POLISH JOURNAL OF ECOLOGY
ISSN	1505-2249
出版年	2020
卷号	68 期号:2 页码:121-131
英文摘要	The effects of changing precipitation and wind regimes on plant physiology are increasingly drawing attention of eco-physiologists. In the manipulative experiment we studied the physiological mechanisms of annual C4 herbs in the semi-arid sandy land to understand the functional significance of their traits and responses to the changing environment, grass Setaria viridis, characterized by the moderate stem water content and low leaf water content, more effectively absorbed light energy and utilized water resources than two dominant dicot plants, Salsola collina and Bassia dasyphylla. Precipitation increase and wind reduction promoted photosynthesis of the three C4 herbaceous plants, and their photosynthetic rates were higher in the end of July than that in August. Precipitation increase and the 20% reduction in wind velocity could also enhance their stomatal conductance and transpiration rate. The transpiration rate was consistent with the change in stomatal conductance, exhibiting highly positive correlation. The interactive effects of precipitation increase and wind velocity reduction made great changes in photosynthetic rate of the S. collina, lifted the photosynthetic rate and water use efficiency of the S. viridis. Our results suggest that the C4 herbs have shown some degree of stress resistance, and they are able to acclimate better to frangible environment of semi-arid sandy land. Furthermore, the changing environments heighten photosynthesis of the C4 herbs, which is pretty important to strength the arid plant stress resistance, then contributed to the ecosystem community production and dry matter accumulation.
英文关键词	precipitation wind velocity physiological characteristics Horqin Sandy Land
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000574939000002
WOS关键词	WATER-USE EFFICIENCY ; CLIMATE-CHANGE ; STOMATAL CONDUCTANCE ; BOUNDARY-LAYER ; SOIL-WATER ; PHOTOSYNTHESIS ; CO2 ; MECHANISMS ; NITROGEN ; CONSEQUENCES
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326626
作者单位	[Sun, Shanshan; Liu, Xinping; He, Yuhui; Lv, Peng; Chelmeg] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou, Peoples R China; [Sun, Shanshan; Lv, Peng; Chelmeg] Univ Chinese Acad Sci, Beijing, Peoples R China; [Lv, Peng] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou, Peoples R China; [Zhang, Lamei] Forestry & Grassland Serv Ctr Tongwei Cty, Dingxi, Gansu, Peoples R China; [Wei, Shuilian] Beijing ZTRC Environm Protect Sci & Technol Co Lt, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Sun, Shanshan,Liu, Xinping,He, Yuhui,et al. Responses of physiological characteristics of annual C4 herbs to precipitation and wind changes in semi-arid sandy grassland, northern China[J],2020,68(2):121-131.
APA	Sun, Shanshan.,Liu, Xinping.,He, Yuhui.,Lv, Peng.,Chelmeg.,...&Wei, Shuilian.(2020).Responses of physiological characteristics of annual C4 herbs to precipitation and wind changes in semi-arid sandy grassland, northern China.POLISH JOURNAL OF ECOLOGY,68(2),121-131.
MLA	Sun, Shanshan,et al."Responses of physiological characteristics of annual C4 herbs to precipitation and wind changes in semi-arid sandy grassland, northern China".POLISH JOURNAL OF ECOLOGY 68.2(2020):121-131.