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首页> 外文期刊>Journal of pesticide science >Development and validation of the SPEC model for simulating the fate and transport of pesticide applied to Japanese upland agricultural soil
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Development and validation of the SPEC model for simulating the fate and transport of pesticide applied to Japanese upland agricultural soil

机译：SPEC模型的开发和验证，该模型用于模拟日本陆地农业土壤上农药的命运和运输

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A pesticide fate and transport model, SPEC, was developed for assessing Soil-PEC (Predicted Environmental Concentrations in agricultural soils) for pesticide residues in upland field environments. The SPEC model was validated for predicting the water content and concentrations of atrazine and metolachlor in 5-cm deep soil. Uncertainty and sensitivity analyses were used to evaluate the robustness of the model’s predictions. The predicted daily soil water contents were accurate regarding the number of observation points ( n =269). The coefficient of determination ( R 2) and Nash-Sutcliffe efficiency ( NSE ) were equal to 0.38 and 0.22, respectively. The predicted daily concentrations of atrazine and metolachlor were also satisfactory since the R 2 and NSE statistics were greater than 0.91 and 0.76, respectively. The field capacity, the saturated water content of the soil and the Q 10 parameter were identified as major contributors to variation in predicted soil water content or/and herbicide concentrations.
机译：开发了农药归宿和运输模型SPEC，用于评估土壤PEC（预测的农业土壤环境浓度）中高地田间环境中的农药残留。验证了SPEC模型可预测5厘米深土壤中的含水量和at去津和异丙甲草胺的浓度。不确定性和敏感性分析用于评估模型预测的稳健性。关于观测点的数量，预测的每日土壤含水量是准确的（n = 269）。测定系数（R 2 ）和Nash-Sutcliffe效率（N SE ）分别等于0.38和0.22。由于R 2 和N SE 的统计值分别大于0.91和0.76，因此预测的阿特拉津和异丙甲草胺的日浓度也令人满意。田间持水量，土壤的饱和水分含量和Q 10 参数被确定为预测的土壤水分含量或除草剂浓度变化的主要因素。

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