上海农业学报2017，Vol.33Issue(5)：52-57,6.DOI:10.15955/j.issn1000-3924.2017.05.10
基于DNDC模型的崇明岛农田土壤有机碳变化模拟和预测
DNDC model-based simulation and forecast of organic carbon variation in farmland soils of Chongming Island
摘要
Abstract
According to the measured data of soil organic carbon of grain and vegetable fields and orchards in monitoring points of Chongming Island's 14 townships in 2003,2009 and 2013,the simulation and verification were made by the DNDC model,and on the basis of values measured in 2003 the soil organic carbon variations of the grain and vegetable fields and orchards in coming 20 years were forecasted under various straw manuring quantities and organic fertilizer rates.The results showed that between 2003-2013 the soil organic carbon contents in all the monitoring points had some increase,and their growth rates were 7.20％-120.39％;The root mean square errors of data simulated by the DNDC model were all less than 10％,so the DNDC model could well simulate the variation of soil organic carbon in Chongming Island;The simulated results indicated that the soil carbon reserves of Chongming Island's farmlands still had a great increasing potential,and the current straw manuring and organic fertilizer applying techniques could significantly improve the soil organic carbon content and thus should be popularized.关键词
农田/土壤有机碳/DNDC模型/崇明岛Key words
Farmland/Soil organic carbon/DNDC model/Chongming Island分类
农业科技引用本文复制引用
张翰林,吕卫光,施俭,李双喜,张娟琴,黄仁影,左狄,郑宪清..基于DNDC模型的崇明岛农田土壤有机碳变化模拟和预测[J].上海农业学报,2017,33(5):52-57,6.基金项目
上海市科委基础研究领域项目(13JC1404800) （13JC1404800）
