摘要
Century模型是世界上用来预测土壤有机碳趋势的重要模型之一,近20年来在农林生态系统上得到了广泛的应用。运用该模型对移耕农业条件下黑土农田土壤有机碳的变化进行了预测,结果表明:Century模型可以预测黑土农田土壤有机碳的演变。移耕农业制度下,已垦黑土农田有机碳水平呈下降趋势,今后100年内年平均下降速率为0.063g/kg。图1,表1,参11。
Century Model is one of the prediction models for soil organic carbon (SOC) dynamics in the world and has been used extensively in agricultural and forestry ecosystems. The paper uses the model to predict SOC changes of non-fertilization cropping in black soil farmland. The results show that the SOC content in the above farming system decreases gradually, with a rate of 0.063g/kg within future 100 years.
出处
《农业系统科学与综合研究》
CSCD
2008年第1期87-90,共4页
System Sciemces and Comprehensive Studies In Agriculture
基金
黑龙江省自然科学基金资助项目(C2007-23)