Effects of biological soil crusts on emergence of desert vascular plants in North China
文献类型：期刊论文
| 作者 | Su, Yan-Gui; Li, Xin-Rong; Cheng, Ying-Wu; Tan, Hui-Juan; Jia, Rong-Liang |
| 刊名 | PLANT ECOLOGY
 |
| 出版日期 | 2007-07-01 |
| 卷号 | 191期号:1页码:11-19 |
| 关键词 | Algae crust biological soil crust emergence moss crust seedling density vascular plants |
| ISSN号 | 1385-0237 |
| DOI | 10.1007/s11258-006-9210-8 |
| 通讯作者 | Su, Yan-Gui(guiruian@163.com) |
| 英文摘要 | Biological soil crusts are a universal and common feature in arid and semi-arid regions and their appearance profoundly affects soil surface properties which may greatly change the seed dispersal, germination and establishment. To date, only a handful of experiments have exerted to investigate the effects of crusts on vascular plants and the conclusions from these studies are variable. In this study, we investigate the influences of two different crusts universally spreading in southeastern part of the Tengger Desert with four chronosequences (24, 41, 50 years old in artificial vegetation area and natural vegetation crusts) on vascular plants. Crusts were placed at three different sites to simulate different environmental factors (wind velocity and soil crust moisture), we set two soil moisture regimes for crusts to investigate how vascular plants respond under different moisture regimes in crusts. Emergence densities of vascular plants were significantly higher in moss crust than in algae crust. With the development of crusts, seed emergence increased in moss crust while decreased in algae crust. As for effects of moisture, our results showed that soil moisture had a significant effect on seed emergence in both types of crusts at all developing phases. Crusts with higher moisture had more seedlings than those with lower moisture. The above results indicated that the appearance of crusts changed the surface soil properties, which had greatly influenced the entrapment and lodgement of seeds in the study area, thus subsequently influence seed emergence through affecting natural factors. |
| 收录类别 | SCI |
| WOS关键词 | PINYON-JUNIPER WOODLANDS ; TENGGER-DESERT ; NATIONAL-PARK ; VEGETATION ; ESTABLISHMENT ; UTAH ; RECRUITMENT ; GERMINATION ; AUSTRALIA ; COMMUNITY |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology ; Forestry |
| WOS类目 | Plant Sciences ; Ecology ; Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000247195000002 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556009 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Su, Yan-Gui |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Shapotou Desert Res & Expt Stn, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Yan-Gui,Li, Xin-Rong,Cheng, Ying-Wu,et al. Effects of biological soil crusts on emergence of desert vascular plants in North China[J]. PLANT ECOLOGY,2007,191(1):11-19. |
| APA | Su, Yan-Gui,Li, Xin-Rong,Cheng, Ying-Wu,Tan, Hui-Juan,&Jia, Rong-Liang.(2007).Effects of biological soil crusts on emergence of desert vascular plants in North China.PLANT ECOLOGY,191(1),11-19. |
| MLA | Su, Yan-Gui,et al."Effects of biological soil crusts on emergence of desert vascular plants in North China".PLANT ECOLOGY 191.1(2007):11-19. |
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来源：寒区旱区环境与工程研究所
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