Effects of small rainfall events on Haloxylon ammodendron seedling establishment in Northwest China
文献类型：期刊论文
| 作者 | Wang, Guohua1,2; Gou, Qianqian1; Zhao, Wenzhi2 |
| 刊名 | CURRENT SCIENCE
 |
| 出版日期 | 2019-01-10 |
| 卷号 | 116期号:1页码:121-127 |
| 关键词 | Arid regions Haloxylon ammodendron seedling establishment small rainfall events |
| ISSN号 | 0011-3891 |
| DOI | 10.18520/cs/v116/i1/121-127 |
| 通讯作者 | Wang, Guohua(gimi123@126.com) |
| 英文摘要 | Small rainfall events (<= 5 mm) account for a large proportion of rainfall amount, and may play an important role in triggering plant regeneration in arid ecosystems. However, their potential ecological importance in seedling establishment of desert shrub has been previously ignored. We conducted two parallel pot experiments to examine the effects of amount and interval of small rainfall events on seedling emergence, growth and survival of the dominant shrub species Haloxylon ammodendron in sand dunes of Northwest China. The results showed that: (1) decrease in rainfall amounts did not significantly lower seedling emergence, growth and survival in comparison to control, while the large increase (+20%) in rainfall amount resulted in significant increase in seedling emergence, growth and survival for both continuous and intermittent small rainfall events; (2) continuous small rainfall events were more effective than intermittent ones for triggering seedling emergence, growth and survival; (3) small rainfall events may impact the seedling establishment of H. ammodendron only in wet years. Our results provide insights into the effects of small rainfall events on seedling establishment processes, and highlight the inherent complexity in predicting how seedling establishment of shrub species in desert ecosystems will respond to future fluctuations in small rainfall events. |
| WOS关键词 | PRECIPITATION PULSES ; WATER PULSES ; SOIL-WATER ; ECOHYDROLOGY ; GERMINATION ; FREQUENCY ; RESPONSES ; DESERTS ; PLANTS ; BANKS |
| 资助项目 | National Natural Science Foundation of China[41701045] ; Opening Fund of Key Laboratory of Ecohydrology of Inland River Basin, Chinese Academy of Sciences[KLEIRB-ZS-16-05] |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000455326500028 |
| 出版者 | INDIAN ACAD SCIENCES |
| 资助机构 | National Natural Science Foundation of China ; Opening Fund of Key Laboratory of Ecohydrology of Inland River Basin, Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/50613]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Guohua |
| 作者单位 | 1.Shanxi Normal Univ, Coll Geog Sci, Linfen 041000, Peoples R China 2.Chinese Acad Sci, Linze Inland River Basin Res Stn, Chinese Ecosyst Res Network, Key Lab Ecohydrol & River Basin Sci,Cold & Arid R, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Guohua,Gou, Qianqian,Zhao, Wenzhi. Effects of small rainfall events on Haloxylon ammodendron seedling establishment in Northwest China[J]. CURRENT SCIENCE,2019,116(1):121-127. |
| APA | Wang, Guohua,Gou, Qianqian,&Zhao, Wenzhi.(2019).Effects of small rainfall events on Haloxylon ammodendron seedling establishment in Northwest China.CURRENT SCIENCE,116(1),121-127. |
| MLA | Wang, Guohua,et al."Effects of small rainfall events on Haloxylon ammodendron seedling establishment in Northwest China".CURRENT SCIENCE 116.1(2019):121-127. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。