QQ客服 官方微博 反馈留言

	Salt dynamics in soil profiles during long-term evaporation under different groundwater conditions
	Liu, G. M.1; Yang, J. S.1; He, L. D.1; Lv, Z. Z.1; Shao, H. B.2; Yu, S. P.1
刊名	PLANT BIOSYSTEMS
	2013-12-01
卷号	147期号:4页码:1211-1218
关键词	Soil salinization salt dynamics evaporation groundwater depth groundwater salinity
ISSN号	1126-3504
其他题名	Variation of Antioxidant System in Pinus armandii under Elevated O3 in an Entire Growth Season.pdf
通讯作者	Liu, GM (reprint author), Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China. gmliuissas@126.com ; jsyang@issas.ac.cn
产权排序	[Liu, G. M.; Yang, J. S.; He, L. D.; Lv, Z. Z.; Yu, S. P.] Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China; [Shao, H. B.] Chinese Acad Sci, Key Lab Coastal Biol & Biol Resources Utilizat, Yantai Inst Coastal Zone Res YIC, Yantai 264003, Peoples R China
中文摘要	To study salt dynamics in soil profiles under different groundwater conditions, a 3-year indoor experiment was carried out under conditions of open-air evaporation. Silt loam soil was treated under three groundwater table depths (0.85, 1.05, and 1.55m) combined with three groundwater salinities: 0.40dSm(-1) (2gl(-1)), 0.80dSm(-1) (4gl(-1)), and 1.60dSm(-1) (8gl(-1)). A total of nine soil columns (0.14m internal diameter) were used to simulate different combinations of groundwater depths and salinities. The results obtained showed that salt first accumulated at the bottom of the soil column, and only when soil salinity in this layer had remained relatively stable with time, salt began to accumulate in the adjacent upper soil layers. When all subsoil layers had reached dynamic salinity equilibrium, electrical conductivity (EC) of soils in the surface layer began to increase drastically. With increasing salt accumulation in the surface soil, EC of the subsoil began to rise tardily. The further up the soil layer, the earlier EC started to increase, although the redistribution of salts in the soil profile tended to be homogenous. Groundwater depth did not significantly change subsoil EC values at the same depth; however, it distinctly affected the time needed for the subsoil to reach dynamic salinity equilibrium. Groundwater salinity, on the other hand, did not significantly alter the time point at which soil salinity at the same depth began to increase rapidly or the time period needed to reach dynamic salinity equilibrium. This study explored salt transport processes in the soil profile through a long-term experiment, enabling us to reveal some general laws governing salt dynamics that will be very important to understand the mechanism of soil salinization. The results could be further used to set up strategies to prevent salinization or to improve salt-affected soils.
英文摘要	To study salt dynamics in soil profiles under different groundwater conditions, a 3-year indoor experiment was carried out under conditions of open-air evaporation. Silt loam soil was treated under three groundwater table depths (0.85, 1.05, and 1.55m) combined with three groundwater salinities: 0.40dSm(-1) (2gl(-1)), 0.80dSm(-1) (4gl(-1)), and 1.60dSm(-1) (8gl(-1)). A total of nine soil columns (0.14m internal diameter) were used to simulate different combinations of groundwater depths and salinities. The results obtained showed that salt first accumulated at the bottom of the soil column, and only when soil salinity in this layer had remained relatively stable with time, salt began to accumulate in the adjacent upper soil layers. When all subsoil layers had reached dynamic salinity equilibrium, electrical conductivity (EC) of soils in the surface layer began to increase drastically. With increasing salt accumulation in the surface soil, EC of the subsoil began to rise tardily. The further up the soil layer, the earlier EC started to increase, although the redistribution of salts in the soil profile tended to be homogenous. Groundwater depth did not significantly change subsoil EC values at the same depth; however, it distinctly affected the time needed for the subsoil to reach dynamic salinity equilibrium. Groundwater salinity, on the other hand, did not significantly alter the time point at which soil salinity at the same depth began to increase rapidly or the time period needed to reach dynamic salinity equilibrium. This study explored salt transport processes in the soil profile through a long-term experiment, enabling us to reveal some general laws governing salt dynamics that will be very important to understand the mechanism of soil salinization. The results could be further used to set up strategies to prevent salinization or to improve salt-affected soils.
学科主题	Plant Sciences
研究领域[WOS]	Plant Sciences
关键词[WOS]	CHENOPODIUM-QUINOA WILLD. ; SHALLOW GROUNDWATER ; DEFICIT IRRIGATION ; WATER PRODUCTIVITY ; SALINITY ; GROWTH ; SALINIZATION ; INOCULATION ; LYSIMETERS ; STRESS
收录类别	SCI
资助信息	Public Welfare Project of Marine Science Research [201105020]; National Natural Science Foundation of China [41171178, 41171181]; Public Welfare Project of Agriculture Science Research [200903001]
原文出处	http://dx.doi.org/10.1080/11263504.2013.862314
语种	英语
WOS记录号	WOS:000328536300037
公开日期	2014-07-08
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/7038]
专题	烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
作者单位	1.Chinese Acad Sci, State Key Lab Soil & Sustainable Agr, Inst Soil Sci, Nanjing 210008, Jiangsu, Peoples R China 2.Chinese Acad Sci, Key Lab Coastal Biol & Biol Resources Utilizat, Yantai Inst Coastal Zone Res YIC, Yantai 264003, Peoples R China
推荐引用方式 GB/T 7714	Liu, G. M.,Yang, J. S.,He, L. D.,et al. Salt dynamics in soil profiles during long-term evaporation under different groundwater conditions[J]. PLANT BIOSYSTEMS,2013,147(4):1211-1218.
APA	Liu, G. M.,Yang, J. S.,He, L. D.,Lv, Z. Z.,Shao, H. B.,&Yu, S. P..(2013).Salt dynamics in soil profiles during long-term evaporation under different groundwater conditions.PLANT BIOSYSTEMS,147(4),1211-1218.
MLA	Liu, G. M.,et al."Salt dynamics in soil profiles during long-term evaporation under different groundwater conditions".PLANT BIOSYSTEMS 147.4(2013):1211-1218.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。