干旱区生态环境知识资源中心(Arid): Effects of fencing on vegetation and soil restoration in a degraded alkaline grassland in northeast China

Arid

	Effects of fencing on vegetation and soil restoration in a degraded alkaline grassland in northeast China
	Li Qiang; Zhou Daowei; Jin Yinghua; Wang Minling; Song Yantao; Li Guangdi
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2014
卷号	6 期号:4 页码:478-487
英文摘要	In order to restore a degraded alkaline grassland, the local government implemented a large restoration project using fences in Changling county, Jilin province, China, in 2000. Grazing was excluded from the protected area, whereas the grazed area was continuously grazed at 8.5 dry sheep equivalent(DSE)/hm~2. In the current research, soil and plant samples were taken from grazed and fenced areas to examine changes in vegetation and soil properties in 2005, 2006 and 2008. Results showed that vegetation characteristics and soil properties improved significantly in the fenced area compared with the grazed area. In the protected area the vegetation cover, height and above- and belowground biomass increased significantly. Soil pH, electrical conductivity and bulk density decreased significantly, but soil organic carbon and total nitrogen concentration increased greatly in the protected area. By comparing the vegetation and soil characteristics with pre-degraded grassland, we found that vegetation can recover 6 years after fencing, and soil pH can be restored 8 years after fencing. However, the restoration of soil organic carbon, total nitrogen and total phosphorus concentrations needed 16, 30 and 19 years, respectively. It is recommended that the stocking rate should be reduced to 1/3 of the current carrying capacity, or that a grazing regime of 1-year of grazing followed by a 2-year rest is adopted to sustain the current status of vegetation and soil resources. However, if N fertilizer is applied, the rest period could be shortened, depending on the rate of application.
英文关键词	vegetation and soil restoration fencing grazing alkaline soil semi arid region grassland degradation
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:5169102
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335368
作者单位	Li Qiang, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130102, China.; Zhou Daowei, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130102, China.; Wang Minling, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130102, China.; Song Yantao, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun, Jilin 130102, China.; Jin Yinghua, School of Geography Science, Northeast Normal University, Changchun, Jilin 130012, China.; Li Guangdi, Graham Centre for Agricultural Innovation, New South Wales Department of Primary Industries and Charles Sturt University, Wagga, 2650, Australia.
推荐引用方式 GB/T 7714	Li Qiang,Zhou Daowei,Jin Yinghua,et al. Effects of fencing on vegetation and soil restoration in a degraded alkaline grassland in northeast China[J],2014,6(4):478-487.
APA	Li Qiang,Zhou Daowei,Jin Yinghua,Wang Minling,Song Yantao,&Li Guangdi.(2014).Effects of fencing on vegetation and soil restoration in a degraded alkaline grassland in northeast China.Journal of Arid Land,6(4),478-487.
MLA	Li Qiang,et al."Effects of fencing on vegetation and soil restoration in a degraded alkaline grassland in northeast China".Journal of Arid Land 6.4(2014):478-487.