Carbon Sequestration In Tilled Soils As Influenced By Agronomic Practices

摘要

The recent increase of carbon dioxide emission is raising global temperature by blocking solar radiation reflected from the Earth surface (Lai 2004, Ramaswamy 2001). Kyoto Protocol (3.4 article) emphasizes that agriculture can diminish air CO2 by increasing soil organic carbon (SOC). Moreover a high organic matter (OM) content in soil is always beneficial; to prevent soil degradation, enhance its fertility and reduce pollution risks (Swift, 2001). This aim can be pursued by sustainable agricultural practices, but long-term experiments are required for the slow SOC dynamic. This paper reports results on SOC obtained in long lasting trials that DiSTA is carrying out in the Po Valley, near Bologna.