Soil organic matter management in a tropical low carbon Agriculture:Data review and current challenges

摘要

Soil organic matter management in tropical environments is a challeging issue,considering erosion process and high temperature and humidity with fast carbon compounds mineralization.However using soil conservative practices,as no-tillage in croplands and more recently in crop-livestock-forest integrated systems,Brazil reached important achievements.From long-term field experiments data combined with spectroscopy tools analysis,utilizing soil humic substances and whole soil samples,several results demonstrated viability to sustain a tropical low carbon agriculture.