干旱区生态环境知识资源中心(Arid): 自然降雨对粤北岩溶区土壤钙、镁离子流失影响模拟试验

Arid

	自然降雨对粤北岩溶区土壤钙、镁离子流失影响模拟试验
其他题名	Simulation Experiment on Effect of Soils Calcium and Magnesium Ions Losses on Natural Rainfall in Karst Rocky Area of North Guangdong
	关共凑 1; 魏兴琥 2
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2013
卷号	27 期号:5 页码:73-76,83
中文摘要	采用土柱模拟试验,分析自然降雨对粤北岩溶区土壤钙、镁离子流失的影响。结果表明:土壤钙、镁离子流失量与降雨量变化趋势基本一致,呈现倒"U"形季度变化趋势,第2,3季度明显高于第1,4季度;降雨量与土壤钙、镁离子流失量之间存在极显著正相关关系,相关系数在0.891~0.944之间;大雨以上的雨强是造成土壤钙、镁离子流失的主要降雨类型;70%以上的土壤钙、镁离子流失量都是由酸雨造成,酸雨引起土壤贫瘠化、石漠化的问题不容忽视;土壤钙离子与镁离子流失量之间存在极显著正相关关系,相关系数在2011年为0.971,在2012年为0.923。
英文摘要	Adopting soil column imitation experiment, the effect of soils calcium and magnesium ions losses on natural rainfall in Karst rocky area of north Guangdong was analyzed. The results showed that the change trend of the soils calcium and magnesium ions losses was identical basically with that of rainfall, which appeared an inverted "U" type, the second season and the third season were higher than the first season and the fourth season obviously. A very remarkable positive correlation was found between rainfall and soils calcium and magnesium ions losses, the correlation coefficient was between 0.891 and 0.944. Heavy rain over which caused soils calcium and magnesium ions losses was the mainly rainfall type. More than 70% of soils calcium and magnesium ions losses were caused by acid rain. Soils impoverishment and rocky desertification problems which caused by acid rain could not be ignored. There was a very remarkable positive correlation between soils calcium ion loss and soils magnesium ion loss, the correlation coefficient was 0.971 in 2011, and 0.923 in 2012.
中文关键词	降雨量 ; 降雨强度 ; 酸雨 ; 钙、镁离子 ; 流失量
英文关键词	rainfall rainfall intensity acid rain calcium and magnesium ions losses
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4962417
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230179
作者单位	1.佛山科学技术学院环境工程系, 佛山, 广东 528000, 中国; 2.佛山科学技术学院国土资源环境与旅游研究中心, 佛山, 广东 528000, 中国
推荐引用方式 GB/T 7714	关共凑,魏兴琥. 自然降雨对粤北岩溶区土壤钙、镁离子流失影响模拟试验[J],2013,27(5):73-76,83.
APA	关共凑,&魏兴琥.(2013).自然降雨对粤北岩溶区土壤钙、镁离子流失影响模拟试验.水土保持学报,27(5),73-76,83.
MLA	关共凑,et al."自然降雨对粤北岩溶区土壤钙、镁离子流失影响模拟试验".水土保持学报 27.5(2013):73-76,83.