干旱区生态环境知识资源中心(Arid): Effects of land-use changes on organic carbon in bulk soil and associated physical fractions in China's Horqin Sandy Grassland

Arid

	Effects of land-use changes on organic carbon in bulk soil and associated physical fractions in China's Horqin Sandy Grassland
	Li Yuqiang; Chen Yinping; Wang Shaokun; Huang Wenda; Zhang Jianpeng
来源期刊	Sciences in Cold and Arid Regions
ISSN	1674-3822
出版年	2015
卷号	7 期号:1 页码:50-58
英文摘要	The Horqin Sandy Grassland is one of the most seriously desertified areas in China's agro-pastoral ecotone due to its fragile ecology, combined with improper and unsustainable land management. We investigated organic carbon changes in bulk soil (0 to 5 cm), light fraction of soil organic matter, and soil particle-size fractions induced by land-use and cover type changes. The results indicated that total soil organic carbon (SOC) storage decreased by 121 g/m~2 with the conversion of grassland into farmland for 30 years, and increased by 261 g/m~2 with the conversion of grassland into plantation for 30 years. Total SOC storage decreased by 157 g/m~2 as a result of severe grassland desertification due to long-term continuous livestock grazing, whereas total SOC increased by 111 g/m~2 following the practice of grazing exclusion (16 years) in desertified areas. Changes in land-use and cover type also show great effects on carbon storage in soil physical fractions.
英文关键词	carbon storage soil fraction desertification restoration
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Science & Technology - Other Topics
CSCD记录号	CSCD:5362388
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335450
作者单位	Li Yuqiang, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Wang Shaokun, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Huang Wenda, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Zhang Jianpeng, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China.; Chen Yinping, School of Environmental and Municipal Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu 730070, China.
推荐引用方式 GB/T 7714	Li Yuqiang,Chen Yinping,Wang Shaokun,et al. Effects of land-use changes on organic carbon in bulk soil and associated physical fractions in China's Horqin Sandy Grassland[J],2015,7(1):50-58.
APA	Li Yuqiang,Chen Yinping,Wang Shaokun,Huang Wenda,&Zhang Jianpeng.(2015).Effects of land-use changes on organic carbon in bulk soil and associated physical fractions in China's Horqin Sandy Grassland.Sciences in Cold and Arid Regions,7(1),50-58.
MLA	Li Yuqiang,et al."Effects of land-use changes on organic carbon in bulk soil and associated physical fractions in China's Horqin Sandy Grassland".Sciences in Cold and Arid Regions 7.1(2015):50-58.