日光温室土壤磷素积累、淋移和形态组成变化研究  

Study on the Phosphorus Accumulation,Leaching and Forms Varying in Greenhouse Soil

作　　者：吕福堂[1] 张秀省[1] 董杰[1] 赵燕[1] 

机构地区：[1]聊城大学,山东聊城252000

出　　处：《西北农业学报》2010年第2期203-206,共4页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：山东省教育厅科技计划项目资助(J08LF01);山东省自然科学基金项目资助(Y2006E02)

摘　　要：为了解日光温室土壤磷素积累、淋移状况和形态组成变化规律,测定了日光温室土壤P素含量和形态组成。结果表明,日光温室土壤P素积累严重、淋移强烈,5、10和14 a日光温室表层土壤速效P含量均超过200 mg/kg,0-100 cm土层土壤速效P积累总量分别是温室外粮田的6.2、13.2和18.0倍,高龄温室底层土壤Olsen-P和水溶P含量高于温室外粮田表层含量。日光温室土壤磷素形态组成和比例与粮田土壤比较发生明显改变,土壤中不同形态无机P的含量由粮田土壤的Ca10-P〉Ca8-P〉Al-P〉Fe-P〉O-P〉Ca2-P变化为温室土壤Ca8-P〉Ca10-P〉Al-P〉Ca2-P〉Fe-P〉O-P。In order to find out the laws of the phosphorus＇ accumulation,leaching and forms varying in greenhouse soil,the content and forms of phosphorus in the greenhouse soil,were measured.The result showed that the phosphorus in the soils accumulated severly,leached forcefully,the content of available phosphorus in the topsoil exceed 200 mg/kg after 5,10 and 14 years.The content of available phosphorus in 0～100 cm topsoil is 10.1,11.7 and 14.5 times greater than that in neighboring field.The olsen-P and water-soluble phosphorus in bottom layer soil of aged green house are higher than that of neighboring field.The forms and its content of phosphorus in green house is different than that of cropland.the content of inorganic phosphorus in cropland are Ca10-P〉Ca8-P〉Al-P〉Fe-P〉O-P〉Ca2-P,and it is Ca8-P〉Ca10-P〉Al-P〉Ca2-P〉Fe-P〉O-P in greenhouse soil.

关 键 词：日光温室 磷素 积累 淋移 形态 

分 类 号：S158[农业科学—土壤学]