Effects of grazing exclusion on soil carbon and nitrogen storage in semi-arid grassland in Inner Mongolia, China
文献类型：期刊论文
| 作者 | Wu Xing ; Li Zongshan ; Fu Bojie ; Lu Fei ; Wang Dongbo ; Liu Huifeng ; Liu Guohua |
| 刊名 | CHINESE GEOGRAPHICAL SCIENCE
 |
| 出版日期 | 2014 |
| 卷号 | 24期号:4页码:479-487 |
| 关键词 | grazing exclusion soil carbon storage soil nitrogen storage grassland management Returning Grazing Lands to Grasslands (RGLG) program semi-arid grassland Hulun Buir grassland |
| ISSN号 | 1002-0063 |
| 中文摘要 | The semi-arid grasslands in Inner Mongolia, China have been degraded by long-term grazing. A series of ecological restoration strategies have been implemented to improve grassland service. However, little is known about the effect of these ecological restoration practices on soil carbon and nitrogen storage. In this study, characteristics of vegetation and soil properties under continued grazing and exclusion of livestock for six years due to a nationwide conservation program-'Returning Grazing Lands to Grasslands (RGLG)' were examined in semi-arid Hulun Buir grassland in Inner Mongolia, China. The results show that removal of grazing for six years resulted in a significant recovery in vegetation with higher above and below-ground biomass, but a lower soil bulk density and pH value. After six years of grazing exclusion, soil organic C and total N storage increased by 13.9% and 17.1%, respectively, which could be partly explained by decreased loss and increased input of C and N to soil. The effects of grazing exclusion on soil C and N concentration and storage primarily occurred in the upper soil depths. The results indicate that removal of grazing pressure within the RGLG program was an effective restoration approach to control grassland degradation in this region. However, more comprehensive studies are needed to evaluate the effectiveness of the RGLG program and to improve the management strategies for grassland restoration in this area. |
| WOS记录号 | WOS:000339332100011 |
| 公开日期 | 2015-03-23 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/9146]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wu Xing,Li Zongshan,Fu Bojie,et al. Effects of grazing exclusion on soil carbon and nitrogen storage in semi-arid grassland in Inner Mongolia, China[J]. CHINESE GEOGRAPHICAL SCIENCE,2014,24(4):479-487. |
| APA | Wu Xing.,Li Zongshan.,Fu Bojie.,Lu Fei.,Wang Dongbo.,...&Liu Guohua.(2014).Effects of grazing exclusion on soil carbon and nitrogen storage in semi-arid grassland in Inner Mongolia, China.CHINESE GEOGRAPHICAL SCIENCE,24(4),479-487. |
| MLA | Wu Xing,et al."Effects of grazing exclusion on soil carbon and nitrogen storage in semi-arid grassland in Inner Mongolia, China".CHINESE GEOGRAPHICAL SCIENCE 24.4(2014):479-487. |
入库方式： OAI收割
来源：生态环境研究中心
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