摘要
土壤退化问题日益严重,土壤改良剂的研究与应用对防治土壤退化具有重要意义。文章综合国内外的研究与应用进展,把土壤改良剂分为天然改良剂、合成改良剂、天然-合成共聚物改良剂、生物改良剂四大类,概述了不同类型改良剂在土壤改良中的应用效果和存在的问题。以天然材料(特别是工农业废弃物)为原料研制新型多功能土壤改良剂是目前土壤改良剂研究的热点。过去的研究主要是针对土壤板结或缺水,以后应加强针对土壤生物退化方面的改良研究和控制各种改良剂负面影响的研究。
It is very important to study and utilize the soil amendments for the more and more serious soil degradation. In this paper, the advances in research and utilization of soil amendments were reviewed. The soil amendments were classified to four tapes： natu- ral amendments, Synthetic amendments, natural-synthetic copolymer, biological amendlnents. The utilization and shortage of differ- ent soil amendments were discussed as well. In the recent years, researchers have been focused on develop multi-functional amend- ments use natural material （especially industrial and agricultural waste）. In the past, it mainly focused on soil harden or loss of water in soil. In the future, researches of soil amendments on soil biological degradation should be enhanced, meanwhile, how to control shortage of different soil amendments should be further studied.
出处
《生态环境》
CSCD
北大核心
2008年第3期1282-1289,共8页
Ecology and Environmnet
基金
国家“十一五”科技支撑计划(2006BAD10B05)
中国科学院知识创新工程方向项目(KSCX2-YW-N-51-02
KZCX3-SW-435)
