Soil organic carbon and nutrients along an alpine grassland transect across Northern Tibet

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所 > Journal of Mountain Science > Journal of Mountain Science-2013 > Vol10 No.4

	Soil organic carbon and nutrients along an alpine grassland transect across Northern Tibet
	Cao Ying-zi 1,2; Wang Xiao-dan1 ; Lu Xu-yang1 ; Yan Yan1 ; Fan Ji-hui1
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2013-08-01
卷号	10 期号:4 页码:564-573
关键词	Soil organic carbon Total nitrogen Total phosphorus Particle size distribution Alpine grassland Tibet
ISSN号	1672-6316
通讯作者	WANG Xiao-dan
英文摘要	Soil carbon and nutrient contents and their importance in advancing our understanding of biogeochemical cycling in terrestrial ecosystem, has motivated ecologists to find their spatial patterns in various geographical area. Few studies have focused on changes in the physical and chemical properties of soils at high altitudes. Our aim was to identify the spatial distribution of soil physical and chemical properties in cold and arid climatic region. We also tried to explore relationship between soil organic carbon (SOC) and total nitrogen (TN), total phosphorus (TP), available nitrogen (AN), available phosphorus (AP), soil particle size distribution (PSD). Samples were collected at 44 sites along a 300 km transect across the alpine grassland of northern Tibet. The study results showed that grassland type was the main factor influencing SOC, TN and TP distribution along the Gangdise Mountain-Shenzha-Shuanghu Transect. SOC, TN and TP contents were significantly higher in alpine meadow than alpine steppe ecosystems. SOC, TN, TP and AN contents in two soil layers (0-15 cm and 15-30 cm) showed no significant differences, while AP content in top soil (0-15 cm) was significantly higher than that in sub-top soil (15-30 cm). SOC content was correlated positively with TN and TP content (r = 0.901 and 0.510, respectively). No correlations were detected for clay content and fractal dimension of particle size distribution (D). Our study results indicated the effects of vegetation on soil C, N and P seem to be more important than that of rocks itself along latitude gradient on the northern Tibetan Plateau. However, we did not found similar impacts of vegetation on soil properties in depth. In addition, this study also provided an interesting contribution to the global data pool on soil carbon stocks.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	PARTICLE-SIZE DISTRIBUTION ; SOUTH-AFRICAN HIGHVELD ; FRACTAL FEATURES ; PHOSPHORUS AVAILABILITY ; NITROGEN DEPOSITION ; PASTURE SOILS ; LOESS PLATEAU ; CLIMATE ; CHINA ; ECOSYSTEM
收录类别	SCI
语种	英语
WOS记录号	WOS:000322392800007
公开日期	2013-07-15
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/5663]
专题	成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2013_Vol10 No.4 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Cao Ying-zi,Wang Xiao-dan,Lu Xu-yang,et al. Soil organic carbon and nutrients along an alpine grassland transect across Northern Tibet[J]. JOURNAL OF MOUNTAIN SCIENCE,2013,10(4):564-573.
APA	Cao Ying-zi,Wang Xiao-dan,Lu Xu-yang,Yan Yan,&Fan Ji-hui.(2013).Soil organic carbon and nutrients along an alpine grassland transect across Northern Tibet.JOURNAL OF MOUNTAIN SCIENCE,10(4),564-573.
MLA	Cao Ying-zi,et al."Soil organic carbon and nutrients along an alpine grassland transect across Northern Tibet".JOURNAL OF MOUNTAIN SCIENCE 10.4(2013):564-573.