Effects of biological soil crusts on seed bank, germination and establishment of two annual plant species in the Tengger Desert (N China)
文献类型：期刊论文
| 作者 | Li, XR; Jia, XH; Long, LQ; Zerbe, S |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2005-12-01 |
| 卷号 | 277期号:1-2页码:375-385 |
| 关键词 | Bassia dasyphylla biological soil crusts Eragrostis poaeoides establishment germination Tengger Desert |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-005-8162-4 |
| 通讯作者 | Li, XR(Lxinrong@lzb.ac.cn) |
| 英文摘要 | The presence of biological soil crusts can affect the germination and survival of vascular plants, but the reasons are not well investigated. We have conducted a field investigation and greenhouse experiments to test the effect of crusts on two desert annual plants, which occur on the stabilized dunes of the Tengger Desert in N China. The results showed that biological soil crusts negatively influenced the seed bank of Eragrostis poaeoides and Bassia dasyphylla. The important effect of biological soil crusts on seed germination and establishment were performed indirectly through reducing the amount of germinating seeds. Field investigation and experimental results with regard to the seed bank indicated that higher seedling density was found in disturbed crust soil and bare soil surface than in intact crust soils. Greenhouse experiments showed that the effects of biological soil crusts on germination and establishment of the two plants are not obvious in moist condition, while disturbed crusts are more favorable to seed germination in dry treatment. Significant differences in biomass were found between disturbed crust soil and bare soil. Survival and growth of the two annual plants were enhanced in both algal and moss crusts during the season of rainfall or in moist environment, but crusts did not affect seedling survival in the dry period. The small seeded E. poaeoides has higher germination than larger-seeded B. dasyphylla in crust soils, but B. dasyphylla has a relatively higher survival rate than E. poaeoides in crust soils. |
| 收录类别 | SCI |
| WOS关键词 | NORTHERN CHINA ; CRYPTOGAMIC CRUSTS ; VASCULAR PLANTS ; NATIONAL-PARK ; ARID DESERT ; SAND DUNES ; VEGETATION ; REGION ; REVEGETATION ; STRATEGIES |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS类目 | Agronomy ; Plant Sciences ; Soil Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000233527700033 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555726 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li, XR |
| 作者单位 | 1.Chinese Acad Sci, Shapotou Desert Res & Expt Stn, Cold & Arid Reg & Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 2.Tech Univ Berlin, Inst Ecol, D-12165 Berlin, Germany |
| 推荐引用方式 GB/T 7714 | Li, XR,Jia, XH,Long, LQ,et al. Effects of biological soil crusts on seed bank, germination and establishment of two annual plant species in the Tengger Desert (N China)[J]. PLANT AND SOIL,2005,277(1-2):375-385. |
| APA | Li, XR,Jia, XH,Long, LQ,&Zerbe, S.(2005).Effects of biological soil crusts on seed bank, germination and establishment of two annual plant species in the Tengger Desert (N China).PLANT AND SOIL,277(1-2),375-385. |
| MLA | Li, XR,et al."Effects of biological soil crusts on seed bank, germination and establishment of two annual plant species in the Tengger Desert (N China)".PLANT AND SOIL 277.1-2(2005):375-385. |
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来源：寒区旱区环境与工程研究所
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