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Persistence of four dominant psammophyte species in central Inner Mongolia of China under continual drought

文献类型：期刊论文

作者Zheng, YuanRun; Jiang, LianHe3; Gao, Yong2; Chen, Xi5; Luo, GePing5; Feng, XianWei5; Yu, YunJiang1; An, Ping7; Yu, Yi6; Shimizu, Hideyuki6
刊名JOURNAL OF ARID LAND
出版日期2013
卷号5期号:3页码:331-339
关键词biomass allocation drought temperature persistence time semi-arid area
ISSN号1674-6767
DOI10.1007/s40333-013-0168-9
文献子类Article
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: 12.5/22.5A degrees C, 15/25A degrees C, 17.5/27.5A degrees C and 20/30A degrees C) 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 80A degrees C 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 (12.5/22.5A degrees C) than at the highest temperatures (20/30A degrees C) 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.
学科主题Environmental Sciences
出版地HEIDELBERG
电子版国际标准刊号2194-7783
WOS关键词WATER RELATIONS ; SOIL-MOISTURE ; PLANT-RESPONSES ; GAS-EXCHANGE ; TEMPERATURE ; GROWTH ; CLIMATE ; WHEAT ; ALLOCATION ; VEGETATION
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000321558300007
出版者SPRINGER HEIDELBERG
资助机构National Basic Research Program of China(National Basic Research Program of China)
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/28036]  
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China
2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China
3.Chinese Acad Sci, Key Lab Resource Plants, Beijing Bot Garden, Inst Bot, Beijing 100093, Peoples R China
4.Natl Inst Environm Studies, Tsukuba, Ibaraki 3058506, Japan
5.Inner Mongolia Agr Univ, Hohhot 010018, Peoples R China
6.Tottori Univ, Arid Land Res Ctr, Tottori 6800001, Japan
7.Chinese Res Inst Environm Sci, Beijing 100012, Peoples R China
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]. JOURNAL OF ARID LAND,2013,5(3):331-339.
APA Zheng, YuanRun.,Jiang, LianHe.,Gao, Yong.,Chen, Xi.,Luo, GePing.,...&Shimizu, Hideyuki.(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.

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来源：植物研究所

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