摘要
论述了设施土壤生态环境的特性主要是土壤养分富集 ,土壤板结 ;土壤酸化、次生盐渍化和连作障碍严重 ;土壤产生有害气体 ;土壤微生物区系变化很大。这些特点主要是盲目大量施肥 ,土壤长期连续利用 ,土壤环境密闭 ,单一化栽培 ,用肥种类不合理及某些化学物质积累造成的。利用生物、农业耕作、地上环境和工程措施调控相结合 ,是调控设施土壤生态环境的有效方法 ,土壤生物学的应用将是改善设施土壤生态环境新的研究方向。
This paper analyzed the characteristics of soil after greenhause cultivation.The soil had problems such as nutrient accumulation,heavy density, acidification,salinization and continuous cultivation.The soil produced harmful gas,which largely affected the soil microbial community.These problems of soil were caused by overuse of fertilizer,long-term continuous cultivation,closed air condition,single crop species,irreasonable fertilizaton and chemical accumulation.Measures for controlling greenhouse soil degradation should combine biological control,agricultural cultivation,ground environment and engineering method together.The application of soil biology will be a new direction for studying the improvement of greenhouse soil environment in the future.
出处
《生态学杂志》
CAS
CSCD
北大核心
2004年第5期192-197,共6页
Chinese Journal of Ecology
基金
国家重点基础研究发展规划资助项目(G1999011808-04)
中国科学院沈阳应用生态研究所知识创新重大项目(SCXZD0104-02)
关键词
设施农业
土壤
生态环境
盐渍化
调控
greenhouse agriculture,soil,eco-environment,salinity,control.
