复合营养液中N、K对边坡绿化植被生长的影响  

Effects of N,K in Compound Nutrient Solution on Growing of Vegetation of Slope Afforestation

作　　者：梅朋森[1] 张丽萍[1] 许文年[1] 戴方喜[1] 黄应平[1] 

机构地区：[1]三峡大学生态与环境科学研究中心,湖北宜昌443002

出　　处：《三峡大学学报（自然科学版）》2007年第5期453-456,共4页Journal of China Three Gorges University：Natural Sciences

基　　金：国家重点基础研究发展计划项目(2003CB415006-3);宜昌市科技发展计划项目(A04401-6)

摘　　要：选取3个不同浓度N、K含量的复合营养液进行交叉设计,施用于生长7个月的混种边坡绿化植被单体.从外观、叶绿素定量测定、抗逆性参数水平考察复合营养液中不同N、K含量对植被单体草坪草生长的影响,结果表明:复合营养液中施用(K2SO42.62 g,NH4NO34.97 g,CO(NH2)23.85 g)/m2N,K含量营养液对植被草坪的外观、抗逆性的提高有良好的效果.Vegetation afforestation technique has been used in slope protection to prevent soil and water loss on exposed slopes after the hydroelectric development engineering for some years.And it has got a good result of slope protection and visual sense.Other more the vegetation can absorb some pollutants in the pollute water;then concentration and degradation arise by physiological process and chemical reaction.The vegetation-concrete-afforestation technique which was invented by Three Gorges University has widely applied.But there is no report about the study of nutrient solution for maintenance of the green vegetation.There is a good spectacle of opening up and application.In order to study and develop the special nutrient solution,nine types of compound nutrient solutions which have different nitrogen and potassium concentration have been used for the mixed lawn which have grown 7 months.The effect of compound nutrient solution for mixed lawn growing was studied by the parameter of lawn＇s external appearance,chlorophyll content and anti-negative.It showed the compound nutrient solution（K2SO4 2.62 g,NH4NO3 4.97 g,CO（NH2）2 3.85 g）/m^2 was good for lawn＇s external appearance and the anti-negative.

关 键 词：边坡绿化 草坪 复合营养液 

分 类 号：O69[理学—化学] X13[环境科学与工程—环境科学]