Migration and leaching characteristics of base cation: indicating environmental effects on soil alkalinity in a karst area

doi:10.1007/s11356-018-2266-x

	Migration and leaching characteristics of base cation: indicating environmental effects on soil alkalinity in a karst area
	Ma, Mingzhen 3,4; Gao, Yang 3,4; Song, Xianwei 3; Green, Sophie M.2; Xiong, Bailian 5; Dungait, Jennifer A. J.6; Peng, Tao 1; Quine, Timothy A.2; Wen, Xuefa 3,4; He, Nianpeng 3,4
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2018-07-01
卷号	25 期号:21 页码:20899-20910
关键词	Karst Lithologic Simulated rainfall Base cations Soil degradation Solute transport
ISSN号	0944-1344
DOI	10.1007/s11356-018-2266-x
通讯作者	Gao, Yang(gaoyang@igsnrr.ac.cn)
英文摘要	In karst areas, rock dissolution often results in the development of underground networks, which act as subterranean pathways for rapid water and nutrient (and possibly soil) loss during precipitation events. Loss of soluble nutrients degrades surface soils and decreases net primary productivity, so it is important to establish flow pathways and quantify nutrient loss during rainfall events of different magnitudes. We conducted a simulated rainfall experiment in karst and nonkarst areas to compare the concentration of nutrients in surface and subsurface flow water and effects on soil alkalinity in three lithologic soil formations under five different rainfall intensity treatments. Compared with the nonkarst area, the runoff in subsurface flows and the proportion of nutrient loss in the subsurface flow are larger in the karst area and less affected by rain intensity. The maximum loss loads of calcium (Ca2+) and magnesium (Mg2+) ions were 32.9 and 19.8 kg ha(-1), respectively. With the estimate of base cation loss loads in the China southern karst area under the rainfall intensity of 45 mm h(-1), more than 80% of the base cation loss load occurred in the limestone karst area. Although the alkalinity leaching value in nonkarst was similar to that in the karst area under simulated rainfall conditions, its impact on the ecological environment was quite different.
资助项目	National Nature Science Foundation of China[41571130043] ; National Nature Science Foundation of China[31570465] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
WOS关键词	SIMULATED RAINFALL ; POTASSIUM ; QUALITY ; COVER ; CHINA ; NITROGEN ; DROUGHT ; IMPACT ; PLANTS ; SLOPE
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000438830900059
资助机构	National Nature Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/129950]
专题	中国科学院地理科学与资源研究所
通讯作者	Gao, Yang
作者单位	1.Chinese Acad Sci, Geochem Inst, State Key Lab Geochem, Guiyang 550002, Guizhou, Peoples R China 2.Univ Exeter, Geog Amory Bldg, Rennes Dr, Exeter EX4 4RJ, Devon, England 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 5.Zunyi Normal Coll, Coll Resources & Environm, Zunyi 563002, Peoples R China 6.Rothamsted Res, Dept Sustainable Soils & Grassland Syst, North Wyke EX20 2SB, Okehampton, England
推荐引用方式 GB/T 7714	Ma, Mingzhen,Gao, Yang,Song, Xianwei,et al. Migration and leaching characteristics of base cation: indicating environmental effects on soil alkalinity in a karst area[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2018,25(21):20899-20910.
APA	Ma, Mingzhen.,Gao, Yang.,Song, Xianwei.,Green, Sophie M..,Xiong, Bailian.,...&He, Nianpeng.(2018).Migration and leaching characteristics of base cation: indicating environmental effects on soil alkalinity in a karst area.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,25(21),20899-20910.
MLA	Ma, Mingzhen,et al."Migration and leaching characteristics of base cation: indicating environmental effects on soil alkalinity in a karst area".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 25.21(2018):20899-20910.