干旱区生态环境知识资源中心(Arid): Persistence of four dominant psammophyte species in central Inner Mongolia of China under continual drought

Arid

	Persistence of four dominant psammophyte species in central Inner Mongolia of China under continual drought
	Zheng Yuanrun; Jiang Lianhe; Gao Yong; Chen Xi; Luo Geping; Feng Xianwei; Yu Yunjiang; An Ping; Yu Yi; Hideyuki Shimizu
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2013
卷号	5 期号:3 页码:331-339
英文摘要	Clarifying the persistence time of seedlings of dominant species under continual drought will help us understand responses of ecosystems to global climate change and improve revegetation efforts.Drought tolerance of four dominant psammophytic shrub species occurring in different environments was studied in the semi-arid areas of Inner Mongolian grasslands.Seedlings of Hedysarum laeve,Caragana korshinskii,Artemisia sphaerocephala and Artemisia ordosica were grown under four air temperature regimes(night/day:12.5/22.5℃,15/25℃,17.5/27.5℃ and 20/30℃)within climate(air temperature and humidity)controlled,naturally lit glasshouses with a night/day relative humidity of 70%/50%.Pots were watered to field capacity for each temperature treatment.Soil water condition was monitored by weighting each pot every day using an electronic balance.Date of seedling death for each treatment was recorded and the dead plants were harvested.Plant dry weights were determined after oven drying at 80℃ for 3 days.Two Artemisia species had higher growth rates than H.laeve and C.korshinskii,and the growth of all four species increased with increasing temperatures.The two Artemisia species had the highest leaf biomass increment,followed by C.korshinskii,and then H.laeve.Shoot biomass increment was higher for A.ordosica and C.korshinskii,intermediate for A.sphaerocephala and lowest for H.laeve.C.korshinskii had the highest root biomass increment.The final soil water content at death for all four species varied from 1% to 2%.C.korshinskii,A.sphaerocephala,H.laeve and A.ordosica survived for 25-43,24-41,26-41,and 24-37 days without watering,respectively.C.korshinskii,A.sphaerocephala,H.Laeve,and A.ordosica seedlings survived longer at the lowest temperatures(12.5/22.5℃)than at the highest temperatures(20/30℃)by 18,17,15 and 13 days,respectively.Increased climatic temperatures induce the death of seedlings in years with long intervals between rainfall events.The adaptation of seedlings to droughts should be emphasized in revegetation efforts in the Ordos Plateau,Inner Mongolia.
英文关键词	biomass allocation drought temperature persistence time semi-arid area
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:4899897
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335214
作者单位	Zheng Yuanrun, Institute of Botany, Chinese Academy of Sciences, Key Laboratory of Resource Plants, Beijing Botanical Garden, Beijing 100093, China.; Jiang Lianhe, Institute of Botany, Chinese Academy of Sciences, State Key Laboratory of Vegetation and Environmental Change, Beijing 100093, China.; Gao Yong, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China.; Chen Xi, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China.; Luo Geping, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China.; Feng Xianwei, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, Xinjiang 830011, China.; Yu Yunjiang, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.; An Ping, Arid Land Research Center, Tottori University 1390 Hamasaka, Tottori 680-0001, Japan.; Yu Yi, National Institute for Environmental Studies, Tsukuba, 305-8506, Japan.; Hideyuki Sh...
推荐引用方式 GB/T 7714	Zheng Yuanrun,Jiang Lianhe,Gao Yong,et al. Persistence of four dominant psammophyte species in central Inner Mongolia of China under continual drought[J],2013,5(3):331-339.
APA	Zheng Yuanrun.,Jiang Lianhe.,Gao Yong.,Chen Xi.,Luo Geping.,...&Hideyuki Shimizu.(2013).Persistence of four dominant psammophyte species in central Inner Mongolia of China under continual drought.Journal of Arid Land,5(3),331-339.
MLA	Zheng Yuanrun,et al."Persistence of four dominant psammophyte species in central Inner Mongolia of China under continual drought".Journal of Arid Land 5.3(2013):331-339.