黄河三盛公水利枢纽三角区盐碱化研究  

Research on the Salinization and Alkalization in Sanshenggong Hydro-junction Region

作　　者：海青[1] 刘廷玺[1] 武国正[1] 刘小燕[1] 姜海轩 

机构地区：[1]内蒙古农业大学水利与土木建筑工程学院,内蒙古呼和浩特010018 [2]内蒙古通辽市水土保持局,内蒙古通辽028000

出　　处：《安徽农业科学》2008年第12期5097-5099,5164,共4页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金(50569001;50769003);国家科技部重大基础研究前期研究专项基金(2005CCA05200);内蒙古重点科技攻关项目(20040702)

摘　　要：以黄河内蒙段河套灌区黄河水利枢纽拦河闸与三盛公水电站三角区如何实施节水灌溉的同时又要防治土壤盐碱化为双重目标,以当地主要经济作物向日葵为田间试验作物,通过在不同盐碱化土壤上进行的节水灌溉试验,分析了不同水分、盐分双重胁迫条件下对向日葵生长发育的影响,并对不同盐碱化土壤向日葵的主要生理发育指标进行了统计分析。结果表明,盐碱土抑制种籽的萌发,盐碱土程度越重,抑制作用越明显;随含盐量的增加,向日葵叶、秆的干物质积累呈下降趋势,相应的产量也呈下降趋势。The double goals including how to enforce water-saving irrigation and prevent and cure the salinization and alkalization of soil in Sanshenggong Hydro-junction Region was described.Helianthu,the main local economic plant,was chosed as the experiment plant.We did water-saving irrigation experiment in the various salinity soil and analyze the influence on the growth and development of helianthus in different condition of moisture and saline matter.Meanwhile,we also did statistic analysis of the major physiological development index of helianthus growing in different alkaline saline soil.The results were as follow：the germination of semen was restrained by alkaline saline soil.With the increase of saline concentration,accumulation of dry matter in helianthus＇ leaves and rods was declined,at the same time,the corresponding yield also appeared a decreasing trendency.

关 键 词：盐碱土 节水灌溉 水分盐分胁迫 

分 类 号：S156.43[农业科学—土壤学]