不同精度的土壤数据对水质和水量模拟的影响

李影,雷秋良,秦丽欢,朱阿兴,李晓虹,翟丽梅,王洪媛,武淑霞,闫铁柱,李文超,胡万里,任天志,刘宏斌

Impact of Soil Data with Different Precision on Water Quality and Flow Simulation

LI Ying,LEI QiuLiang,QIN LiHuan,ZHU AXing,LI XiaoHong,ZHAI LiMei,WANG HongYuan,WU ShuXia,YAN TieZhu,LI WenChao,HU WanLi,REN TianZhi,LIU HongBin

表4 选取的营养物参数及其初始阈值

Table 4 Nutrients parameters and their initial ranges

参数 Parameter 参数说明 Parameter description 初始阈值 Initial threshold V_BIOMIX.mgt 生物混合效率 Biological mixing efficiency 0 1 V_FRT_SURFACE.mgt 表层10 mm土壤中的施肥量占施肥总量的分数 Fraction of fertilizer applied to top 10 mm of soil 0 1 V_FILTERW.mgt 过滤带宽度 Width of edge-of-field filter strip 0 100 V_GWSOLP.gw 向子流域河流输入的地下水中可溶性磷浓度 Concentration of soluble phosphorus in groundwater contribution to streamflow from subbasin 0 1000 V_ERORGN.hru 泥沙运移中有机氮的富集比 Organic N enrichment ratio for loading with sediment 0 5 V_ERORGP.hru 泥沙运移中有机磷的富集比 Phosphorus enrichment ratio for loading with sediment 0 5 V_CDN.bsn 反硝化指数速率系数 Denitrification exponential rate coefficient 0 3 V_SDNCO.bsn 发生反硝化作用的土壤含水量阈值 Denitrification threshold water content 0 1 V_RSDCO.bsn 残留物的分解系数 Residue decomposition coefficient 0.02 0.1 V_PPERCO.bsn 磷的渗流系数 Phosphorus percolation coefficient in soil layer 10 17.5 V_PHOSKD.bsn 磷的土壤分配系数 Phosphorus soil partitioning coefficient 100 200 V_NPERCO.bsn 硝酸盐的渗流系数 Nitrate percolation coefficient 0 1 V_BC1_BSN.bsn NH3生物氧化的速率常数 Rate constant for biological oxidation of NH3 0.1 1 V_BC2_BSN.bsn 从NO2到NO3的生物氧化速率常数 Rate constant for biological oxidation NO2 to NO3 0.1 1 V_BC3_BSN.bsn 从有机氮到氨基的水解速率常数 Rate constant for hydrolysis of organic nitrogen to ammonia 0.02 0.4 V_BC4_BSN.bsn 从有机磷到可溶性磷的腐化速率常数 Rate constant for decay of organic phosphorus to dissolved phosphorus 0.01 0.7