黄土高原旱塬农田生态系统碳氮循环特征

以黄土高原南部长武试区的典型旱塬农田生态系统为研究对象,运用DNDC模型分析其麦田在4种处理下连续6年的碳(C)、氮(N)循环特征,经与已知试验结果和实测数据比较,验证了该模型的适用性,并提出了该区农业发展的主要措施。

Taking the typical farmland ecosystem ot Changwu Demonstration Area in the south ot Loess Plateau as the study object,based on the DNDC(Denitrification-decomposition) model,the carbon and nitrogen cycling characteristics of wheat field ecosystem in four different treatments through successive six years were analyzed. And also by comparing the data calculated from the model with known experimental results and practical measuring data,it was preliminarily verified that the model was applicable. On the basis o...