摘要
本文通过大量资料在每公颂施用不超过６０万公斤的粉煤灰改良石灰性粘质土壤时，采用污染指数法、污染起始值对土壤与粮食中镉、铬、铅、砷、汞及３．４Ｂ（ａ）Ｐ的含量进行了初步的评价，认为在上述施用量的基础上，不会造成土壤、粮食的污染。通过二年三作模拟储灰场五种有害元素ｋ＿ｍ值测定进行初步分析表明：个别元素在表层或底层有弱度淋溶或富集，但层次间、年度间变化不大，总的趋势是比较稳定，同上述评价结果一致。
Based on considerable data a preliminary assessment of Cd ,Cr,Pb
,As ,Hg and3.4B(a)Pcontents in soils and grains when calcareous clay and slightly acid
soilwere ameliorated with coal ash(≤600 000kg/ha) was made by the methods of pol-lution
initial values and pollution indexes.The results show that coal ash couldnot cause soil and
grain pollution.Through triple-cropping every two years in thesimulated ash dispoal area and
k_m determination, Cd,Cr,Pb,As and Hg contentswere found stable in general.Though there
existed week leaching or enrichment ofspecific element in surface or subsoil stratum, there
were no great changes amonglayers and years。
出处
《土壤学报》
CAS
CSCD
北大核心
1995年第2期194-201,共8页
Acta Pedologica Sinica
关键词
粉煤灰
土壤
粮食
污染起始值
污染指数
Coal ash,Soil,Grain, Pollution
initial value,Migration index,Pollution index
