摘要
有机物料土地利用在改善土壤理化性质、增强供肥能力、提高农作物产量的同时,也给土壤生态系统带来了短期风险,但目前并未得到足够重视。本文重点就有机物料施用对土壤微生物、生源要素周转、以及重金属迁移转化的短期影响进行综述,并将土壤生态系统的短期响应与土壤健康联系,以期有机物料土地利用引起的短期环境效应得到关注,进而在机理上深入研究,为正确使用有机肥,更好地提高土壤质量,快速发展有机农业打下基础。
Agricultural application of organic materials can improve soil characters and fertility,increase crop yields,but it may also bring the short-term risks to soil ecosystem.However,the risks have not got enough attention.This paper focused on the short-term changes of soil microorganism,turnover of nutrient elements and transformation of heavy metals after organic materials applications,and also discussed the risks in a view of soil health in order to attract high and more attentions to this issue.It hoped to strengthen the mechanisms study of the risks for more reasonable application of organic fertilizers to further improve soil quality and develop organic farm.
出处
《土壤》
CAS
CSCD
北大核心
2010年第6期889-894,共6页
Soils
基金
国家自然科学基金项目(40871101)
浙江省自然科学基金一般项目(Y5100030)
杭州市科技发展计划项目(20080213A21)资助
关键词
有机物料
土地利用
短期影响
微生物
土壤健康
Organic material
Land application
Short-term effect
Microorganism
Soil health
