Influences of grazing and exclosure on carbon sequestration in degraded sandy grassland, Inner Mongolia, north China
文献类型：期刊论文
| 作者 | Su, YZ; Zhao, HL; Zhang, TH |
| 刊名 | NEW ZEALAND JOURNAL OF AGRICULTURAL RESEARCH
 |
| 出版日期 | 2003-12-01 |
| 卷号 | 46期号:4页码:321-328 |
| 关键词 | carbon sequestration grazing exclosure sandy grassland north China |
| ISSN号 | 0028-8233 |
| 通讯作者 | Zhao, HL() |
| 英文摘要 | Livestock grazing is recognised as one of the main causes of vegetation and soil degradation/desertification in the semi-arid Horqin sandy steppe of northern China. In this paper, soil-plant system carbon (C) in a representative degraded sandy grassland in the Horqin sandy steppe (42degrees58' N, 120degrees42'E altitude c. 360 m a.s.l.) was measured. Three situations: long-term continuous grazing (CG), exclosure for 5 years (5EX), and exclosure for 10 years (10EX), were compared to assess the effect of grazing management on C sequestration. Ground cover increased from the CG (35%) to the 5EX (63%) and to the 10EX (81%), and accordingly soil organic C at 0-15 cm depth and total plant components C increased from the CG (492 and 98 g m(-2)) to the 5EX (524 and 134 g m(-2)) and to the 10EX (584 and 317 g m(-2)). The results suggested that continuous grazing in the erosion-prone sandy grassland is very detrimental to vegetation and soil. Under exclosure conditions, vegetation restoration and litter accumulation significantly increased plant-soil system C storage, and thus sequestration of atmospheric C. It was concluded that the degraded sandy grassland could contribute to significant C sequestration with the implementation of protective practices. |
| 收录类别 | SCI |
| WOS关键词 | SOIL CARBON ; PASTURE MANAGEMENT ; GREAT-PLAINS ; DESERTIFICATION ; RANGELANDS ; NITROGEN ; INDICATORS ; DYNAMICS ; LITTER |
| WOS研究方向 | Agriculture |
| WOS类目 | Agriculture, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000187836300006 |
| 出版者 | SIR PUBLISHING |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556905 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Zhao, HL |
| 作者单位 | Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, YZ,Zhao, HL,Zhang, TH. Influences of grazing and exclosure on carbon sequestration in degraded sandy grassland, Inner Mongolia, north China[J]. NEW ZEALAND JOURNAL OF AGRICULTURAL RESEARCH,2003,46(4):321-328. |
| APA | Su, YZ,Zhao, HL,&Zhang, TH.(2003).Influences of grazing and exclosure on carbon sequestration in degraded sandy grassland, Inner Mongolia, north China.NEW ZEALAND JOURNAL OF AGRICULTURAL RESEARCH,46(4),321-328. |
| MLA | Su, YZ,et al."Influences of grazing and exclosure on carbon sequestration in degraded sandy grassland, Inner Mongolia, north China".NEW ZEALAND JOURNAL OF AGRICULTURAL RESEARCH 46.4(2003):321-328. |
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来源：寒区旱区环境与工程研究所
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