Suitable exclosure duration for the restoration of degraded alpine grasslands on the qinghai-tibetan plateau
文献类型：期刊论文
| 作者 | Cao, Jianjun1; Li, Guangdong1; Adamowski, Jan F.2; Holden, Nicholas M.3; Deo, Ravinesh C.4; Hu, Zeyong5; Zhu, Guofeng1; Xu, Xueyun1; Feng, Qi5 |
| 刊名 | Land use policy
 |
| 出版日期 | 2019-07-01 |
| 卷号 | 86页码:261-267 |
| ISSN号 | 0264-8377 |
| 关键词 | Alpine grassland Grazing exclusion Aboveground biomass Soil moisture Species richness |
| DOI | 10.1016/j.landusepol.2019.05.008 |
| 通讯作者 | Feng, qi(qifeng@lzb.ac.cn) |
| 英文摘要 | Exclosures erected to prevent grazing have been widely adopted as a measure for the recovery of degraded grasslands. many studies have explored the effects of exclosure use on vegetation and soil; these studies, however, were carried out over relatively short-time periods. given the length of time required for a grassland to fully develop, short-term studies result in a limited understanding of exclosure effectiveness. to address this challenge, this study will use 5-, 13-, 22-, and 39-year exclosure times in an alpine grassland on the qinghai-tibetan plateau, china, to evaluate the influence of exclosure time on species number, aboveground biomass, including both living and dead biomass (i.e. standing dead biomass and litter), and soil water content. to explore the differences between traditional grazing activity and exclosures, seasonal grazing served as a control measure. the results show that species richness was at its lowest after a 39-year exclosure period while the most dominant species remained invariant for both seasonally-grazed and exclosed plots. the greatest increase in living biomass occurred after a 13-year exclosure time; in contrast, the greatest increase in dead biomass occurred after a 39 year exclosure time. furthermore, the aboveground biomass did not vary with exclosure time. in terms of soil depths ranging from 0-0.30 m, there was little difference in soil water content between seasonally-grazed and exclosed plots. while the soil water content recorded at the 0-0.15m layer fluctuated somewhat. at the 0.15-0.30 m layer it presented a consistent decreasing trend as exclosure time increased. a 13-year exclosure period proved to be a suitable duration for alpine grassland recovery since, at this stage, living biomass, species richness and soil water content were greater than that of seasonally-grazed grasslands. |
| 收录类别 | SSCI |
| WOS关键词 | TERM GRAZING EXCLUSION ; SOIL PROPERTIES ; LOESS PLATEAU ; RANGELAND DEGRADATION ; CARBON SEQUESTRATION ; ECOSYSTEM SERVICES ; NITROGEN STORAGE ; LAND-USE ; VEGETATION ; CHINA |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Studies |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000472686800024 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555391 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Feng, Qi |
| 作者单位 | 1.Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Gansu, Peoples R China 2.McGill Univ, Fac Agr & Environm Sci, Dept Bioresource Engn, Montreal, PQ H9X 3V9, Canada 3.Univ Coll Dublin, Sch Biosyst Engn, Agr & Food Sci Ctr, Dublin 4, Ireland 4.Univ Southern Queensland, Ctr Appl Climate Sci, Sch Agr Computat & Environm Sci, Springfield, Qld, Australia 5.Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Alashan Desert Ecohydrol Expt Res Stn, Cold & Arid Reg Environm Engn Res Inst, Lanzhou 73000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Jianjun,Li, Guangdong,Adamowski, Jan F.,et al. Suitable exclosure duration for the restoration of degraded alpine grasslands on the qinghai-tibetan plateau[J]. Land use policy,2019,86:261-267. |
| APA | Cao, Jianjun.,Li, Guangdong.,Adamowski, Jan F..,Holden, Nicholas M..,Deo, Ravinesh C..,...&Feng, Qi.(2019).Suitable exclosure duration for the restoration of degraded alpine grasslands on the qinghai-tibetan plateau.Land use policy,86,261-267. |
| MLA | Cao, Jianjun,et al."Suitable exclosure duration for the restoration of degraded alpine grasslands on the qinghai-tibetan plateau".Land use policy 86(2019):261-267. |
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来源：寒区旱区环境与工程研究所
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