Weathering of primary mineral phosphate in the early stages of ecosystem development in the Hailuogou Glacier foreland chronosequence

doi:10.1111/ejss.12536

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 > 山地表生过程与生态调控重点实验室

	Weathering of primary mineral phosphate in the early stages of ecosystem development in the Hailuogou Glacier foreland chronosequence
	Zhou, J.1 ; Bing, H.1; Wu, Y.1; Sun, H.1 ; Wang, J.2
刊名	EUROPEAN JOURNAL OF SOIL SCIENCE
	2018-05-01
卷号	69 期号:3 页码:450-461
ISSN号	1351-0754
DOI	10.1111/ejss.12536
英文摘要	Phosphorus (P) is an essential nutrient for plants. Although the transformation of P speciation and the availability of P in soil have been extensively investigated, the weathering processes and rates of weathering of primary mineral phosphate during the initial stage of pedogenesis are not well understood. Soil samples were collected from six sites that had been exposed for different lengths of time in the foreland of the Hailuogou Glacier, SW China. Three classes of P in different minerals were operationally defined using a sequential extraction procedure. The results revealed that the weathering processes of apatite in the Hailuogou chronosequence were divided into two stages: the first was observed at the 30-, 40- and 52-year-old sites, where the average rate of weathering of primary mineral phosphate (RLP) increased from 2.6 to 8.7mmolm(-2)year(-1), and the second was observed at the 80-and 120-year-old sites, where the average RLP increased markedly to 26.0mmol m(-2)year(-1). The RLP at the 120-year-old site was significantly larger than at sites with similar ages in temperate and subtropical zones, mainly because of differences in climate, vegetation type and initial P content of the parent material. The rapid increase in RLP with age in the Hailuogou chronosequence was fitted well by a power function (RLP=0.012xAge(1.66)) and was affected mainly by the rapid decrease in soil pH and rapid development of vegetation. By compiling the data in this study and from the literature, we propose that changes in the RLP with age (100-12000years) can be described by a decreasing power function and can be divided roughly into three stages. The average RLP (14.1mmol m(-2)year(-1)) in the Hailuogou chronosequence was approximate to 47 times larger than the global rate of P release, thus indicating the importance of glacier forelands in global P cycling.
语种	英语
出版者	WILEY
WOS记录号	WOS:000431635200006
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/21454]
专题	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成都山地灾害与环境研究所_山地灾害与地表过程重点实验室
通讯作者	Zhou, J.; Wu, Y.
作者单位	1.Chinese Acad Sci, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu 610041, Sichuan, Peoples R China 2.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Zhou, J.,Bing, H.,Wu, Y.,et al. Weathering of primary mineral phosphate in the early stages of ecosystem development in the Hailuogou Glacier foreland chronosequence[J]. EUROPEAN JOURNAL OF SOIL SCIENCE,2018,69(3):450-461.
APA	Zhou, J.,Bing, H.,Wu, Y.,Sun, H.,&Wang, J..(2018).Weathering of primary mineral phosphate in the early stages of ecosystem development in the Hailuogou Glacier foreland chronosequence.EUROPEAN JOURNAL OF SOIL SCIENCE,69(3),450-461.
MLA	Zhou, J.,et al."Weathering of primary mineral phosphate in the early stages of ecosystem development in the Hailuogou Glacier foreland chronosequence".EUROPEAN JOURNAL OF SOIL SCIENCE 69.3(2018):450-461.