Soil seed bank and its relation with above-ground vegetation along the degraded gradients of alpine meadow
文献类型：期刊论文
| 作者 | Yang, SH (Yang, Shihai)2; Wang, YL (Wang, Yanlong)1; Shi, JJ (Shi, Jianjun)1; Shang, ZH; Long, RJ (Long, Ruijun)3; Ding, LM (Ding, Luming)3; Shang, ZH (Shang, Zhanhuan)3 |
| 刊名 | ECOLOGICAL ENGINEERING
 |
| 出版日期 | 2016 |
| 卷号 | 90期号:0页码:268-277 |
| 关键词 | Qinghai-tibetan Plateau Grassland Soils Management Restoration Communities Diversity Dynamics Wetlands Carbon Marsh |
| DOI | 10.1016/j.ecoleng.2016.01.067 |
| 文献子类 | Article |
| 英文摘要 | Degradation of alpine meadow may change the composition and size of the soil seed bank, which will impact on the seed bank's capacity for restoration. Four plots were selected to represent the degradation gradients of alpine meadow on Tibetan plateau, namely normal meadow, lightly-degraded meadow, moderately-degraded meadow, and severely-degraded meadow. Soil cores were collected in two seasons, November of 2004 (after seed dispersal) and April of 2005 (before seedling emergence). Soil seed banks were examined by a seedling emergence method. Totals of 56 and 57 species were identified from soil seed bank of four plots in November and April, respectively. The mean size of the soil seed bank on the four plots varied between 2662 and 8026 seeds m-2 in November, and between 3744 and 9773 seeds m-2 in April. The difference in soil seed bank size between the two sampling times (November and April) was not significant within plots. Soil seed banks and above-ground vegetation presented the same trend with vegetation succession across the differently degraded meadows. In all plots, hemicryptophytes accounted for the majority of species and produced the largest number of seeds, of which the majority was weeds. In degraded meadows, the significant increase in weeds (species richness, plant density) changed species composition of soil seed bank and above-ground vegetation along degrading trend. The soil seed bank has important implications for vegetation succession and the restoration of species-diverse alpine meadow on the Tibetan plateau. (C) 2016 Elsevier B.V. All rights reserved. |
| 学科主题 | 自然地理学 |
| 语种 | 英语 |
| WOS记录号 | WOS:000373376700033 |
| 源URL | [http://ir.itpcas.ac.cn/handle/131C11/7710]  |
| 专题 | 青藏高原研究所_图书馆 |
| 通讯作者 | Shang, ZH |
| 作者单位 | 1.Qinghai Acad Anim & Vet Sci, Inst Grassland Sci, Xining 810003, Peoples R China 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China 3.Lanzhou Univ, Sch Life Sci, State Key Lab Grassland Agro Ecosyst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, SH ,Wang, YL ,Shi, JJ ,et al. Soil seed bank and its relation with above-ground vegetation along the degraded gradients of alpine meadow[J]. ECOLOGICAL ENGINEERING,2016,90(0):268-277. |
| APA | Yang, SH .,Wang, YL .,Shi, JJ .,Shang, ZH.,Long, RJ .,...&Shang, ZH .(2016).Soil seed bank and its relation with above-ground vegetation along the degraded gradients of alpine meadow.ECOLOGICAL ENGINEERING,90(0),268-277. |
| MLA | Yang, SH ,et al."Soil seed bank and its relation with above-ground vegetation along the degraded gradients of alpine meadow".ECOLOGICAL ENGINEERING 90.0(2016):268-277. |
入库方式： OAI收割
来源：青藏高原研究所
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。