Effect of soil coarseness on soil base cations and available micronutrients in a semi-arid sandy grassland

doi:10.5194/se-7-549-2016

	Effect of soil coarseness on soil base cations and available micronutrients in a semi-arid sandy grassland
	Han, Xingguo 1; Lu, Linyou 1,2; Wang, Ruzhen 1; Liu, Heyong 1,3; Yin, Jinfei 1,4; Xiao, Jiangtao 1,4; Wang, Zhengwen 1; Zhao, Yan 2; Yu, Guoqing 2; Jiang, Yong 1
刊名	SOLID EARTH
	2016
卷号	7 期号:2 页码:549-556
ISSN号	1869-9510
DOI	10.5194/se-7-549-2016
英文摘要	Soil coarseness is the main process decreasing soil organic matter and threatening the productivity of sandy grasslands. Previous studies demonstrated negative effect of soil coarseness on soil carbon storage, but less is known about how soil base cations (exchangeable Ca, Mg, K, and Na) and available micronutrients (available Fe, Mn, Cu, and Zn) response to soil coarseness. In a semi-arid grassland of Northern China, a field experiment was initiated in 2011 to mimic the effect of soil coarseness on soil base cations and available micronutrients by mixing soil with different mass proportions of sand: 0% coarse elements (C0), 10% (C10), 30% (C30), 50% (C50), and 70% (C70). Soil coarseness significantly increased soil pH in three soil depths of 0-10, 10-20 and 20-40 cm with the highest pH values detected in C50 and C70 treatments. Soil fine particles (smaller than 0.25 mm) significantly decreased with the degree of soil coarseness. Exchangeable Ca and Mg concentrations significantly decreased with soil coarseness degree by up to 29.8% (in C70) and 47.5% (in C70), respectively, across three soil depths. Soil available Fe, Mn, and Cu significantly decreased with soil coarseness degree by 62.5, 45.4, and 44.4 %, respectively. As affected by soil coarseness, the increase of soil pH, decrease of soil fine particles (including clay), and decline in soil organic matter were the main driving factors for the decrease of exchangeable base cations (except K) and available micronutrients (except Zn) through soil profile. Developed under soil coarseness, the loss and redistribution of base cations and available micronutrients along soil depths might pose a threat to ecosystem productivity of this sandy grassland.
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000374543400016
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/122617]
专题	中国科学院沈阳应用生态研究所
通讯作者	Wang, Ruzhen
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110016, Peoples R China 2.Liaoning Acad Agr Sci, Inst Sandyland Improvement & Utilizat, Fuxing 123000, Peoples R China 3.Shenyang Univ, Coll Environm, Key Lab Reg Environm & Ecoremediat, Shenyang 110044, Peoples R China 4.Univ Chinese Acad Sci, Beijing 10049, Peoples R China
推荐引用方式 GB/T 7714	Han, Xingguo,Lu, Linyou,Wang, Ruzhen,et al. Effect of soil coarseness on soil base cations and available micronutrients in a semi-arid sandy grassland[J]. SOLID EARTH,2016,7(2):549-556.
APA	Han, Xingguo.,Lu, Linyou.,Wang, Ruzhen.,Liu, Heyong.,Yin, Jinfei.,...&Jiang, Yong.(2016).Effect of soil coarseness on soil base cations and available micronutrients in a semi-arid sandy grassland.SOLID EARTH,7(2),549-556.
MLA	Han, Xingguo,et al."Effect of soil coarseness on soil base cations and available micronutrients in a semi-arid sandy grassland".SOLID EARTH 7.2(2016):549-556.