( 4 ) soil water flow was simulated by macro model and soil nitrate transport was simulated by coupmodel . part of soil layer ' s simulated results fitted well compared with the measured values . the water percolation amount simulated with considering macro - pore was 60 ( 4 )用macro模型模拟水过程， coupmodel模型模拟氮素转化过程，部分土层水、氮的模拟结果和实测值较吻合，考虑大孔隙时模拟得到土壤水的渗漏量较不考虑时高60 . 50 ，土壤硝酸盐淋洗量占施肥量30 . 87 ，比不考虑时高。
