摘要
为了研究从德国引进的环保型土壤改良剂Arkadolith在中国沙化土壤区的应用前景,采用内蒙古达拉特旗布齐沙漠东缘风沙土在室内进行了盆栽试验,并运用多元统计的方法分析了该土壤改良剂对土壤主要理化性质的影响。结果表明:Arkadolith土壤改良剂,不仅能降低风沙土土壤容重最多达到11.84%,提高土壤孔隙度,加快渗透速度,增加土壤含水量;而且能增加土壤团聚度,丰富土壤中有机质和全氮的含量,增加速效养分;同时,还能有效降低土壤pH值和电导率(盐碱化程度)。在试验范围内,改良剂对土壤的改良作用随用量的增加有大幅度的提高。Arkadolith土壤改良剂作为一种新型矿物改良剂,改良土壤的作用长久、高效,并且更加安全、环保。在我国该改良剂的主要成分--铝土矿资源丰富,应用前景广阔。
In order to study the applying prospect of environmentally friendly soil amendment Arkadolith introduced from Germany in sandy area of china,the experiment was conducted in laboratory by using aeolian sandy soil from Kubuqi desert in Dalad of Inner Mongolia,and a multivariate statistical analysis method was used to analyzing the effects of Arkadolith on main physicochemical properties of soil.The results showed that Arkadolith not only can reduce the soil bulk density（maximum 11.84%）,increase soil porosity,speed up infiltration rate and increase soil moisture,but also can increase degree of soil aggregation,enrich contents of organic matter and total nitrogen in soil and increase available nutrients;at the same time it can effectively reduce the soil pH value and conductivity.In the test range,the improving effect of Arkadolith on soil increased greatly with increasing applying amount.As a new mineral improver,the Arkadolith soil amendment has more lasting,more efficient,safer and more environmental protecting effect on sandy soil.Moreover,the main components of the Arkadolith is bauxite,which is abundance in China.So,the Arkadolith has broad applying prospect.
出处
《湖南农业科学》
2011年第6期76-78,81,共4页
Hunan Agricultural Sciences
基金
"948"国家林业局引进国际先进林业科学技术项目(2008-4-44)
关键词
土壤改良剂
Arkadolith
风沙土
理化性质
柽柳
soil amendment
Arkadolith
aeolian sandy soil
physicochemical property
Tamarix chinensis
