新型土地复垦基质配比试验及盐分冲洗定额研究  

A kind of mixed media composed of fly ash and acid residue of furfural for land reclamation and its leaching requirement

作　　者：张蕾娜[1] 冯永军[2] 王兆锋[1] 

机构地区：[1]中国科学院地理科学与资源研究所,北京100101 [2]山东农业大学资源与环境学院,泰安271018

出　　处：《农业工程学报》2004年第4期268-272,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：山东省教育厅科技攻关项目(J02L07)

摘　　要：在室内进行了粉煤灰与有机物料(糠醛渣)不同组成的基质配比盆栽试验,探讨了各种基质在不同管理条件下的物理特性和营养元素的变化与循环,结果表明:糠醛渣与粉煤灰混合后,在一定程度上可以改善粉煤灰的特性,经过合理的肥水管理,基本上可以满足作物生长,混合基质中糠醛渣的最佳配比比例为5%～20%。另外,研究中发现,盐分含量是抑制作物正常生长的主要因素之一,实例中设计的盐分冲洗定额为4.39×103m3/hm2,能将盐分控制在作物正常生长的范围之内。Filling the subsided land with fly ash is the dominant land reclamation way in the coal mine area at present. In order to avoid some disadvantages of the fly ash such as nutrition element absence, high pH value, poor water holding capacity and harmful toxic element, a new kind of land media for land reclamation composed of different proportion of fly ash and the acid residue of furfural is developed based on pot tests in this paper. The results indicate that the properties of the fly ash is improved after the acid residue of furfural is added and this new medium is helpful for the plant growing by some normal planting management. The optimum proportion of acid residue of furfural in this new medium is 5%~20%. It is also found out that salt may be the main factor restraining plant from normal growth. In order to keep suitable salt content, salt washing for this new medium, in an example case, is needed and the washing amount is suggested about 4.39×10~3 m^3/hm^2.

关 键 词：土地复垦 基质配比 粉煤灰 糠醛渣 冲洗定额 

分 类 号：X24[环境科学与工程—环境科学]