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Development and improvement of the simulation of woody bioenergy crops in the Soil and Water Assessment Tool (SWAT)
Environmental Modelling & Software ( IF 4.9 ) Pub Date : 2018-08-27 , DOI: 10.1016/j.envsoft.2018.08.030
Tian Guo , Bernard A. Engel , Gang Shao , Jeffrey G. Arnold , Raghavan Srinivasan , James R. Kiniry

Quantifying Populus growth and the impacts on hydrology and water quality are important should it be widely planted. Soil and Water Assessment Tool (SWAT) tree growth algorithms and parameters for hybrid poplar in Midwestern US and cottonwood in Southern US were improved. Tree growth representation led to SWAT2012 code changes including a new leaf area parameter (TREED), new leaf area index algorithm, and leaf biomass algorithm. Simulated hybrid poplar LAI and aboveground woody biomass (PBIAS: 34 - 5%, NSE: 0.51–0.99, and R2: 0.72–0.99), and cottonwood aboveground biomass, runoff, sediment, and nitrate-N (PBIAS: 39 - 11%, NSE: 0.86–0.99, and R2: 0.93–0.99) from the modified SWAT were satisfactory. Improved algorithms, and parameter values and potential ranges for Populus were reasonable. Thus, the modified SWAT can be used for Populus biofeedstock production modeling and hydrologic and water quality response to its growth.



中文翻译:

在土壤和水评估工具(SWAT)中开发和改进木质生物能源作物的模拟

如果广泛种植,量化胡杨的生长及其对水文和水质的影响非常重要。改进了美国中西部杂种杨和美国南部白杨的土壤和水评估工具(SWAT)树的生长算法和参数。树的生长表示导致SWAT2012代码更改,包括新的叶面积参数(TREED),新的叶面积索引算法和叶生物量算法。模拟的杂交杨树LAI和地上木质生物量(P BIAS:34-5%,NSE:0.51-0.99,R 2:0.72-0.99),以及杨木地上生物量,径流,沉积物和硝态氮(P BIAS:39 -11%,NSE:0.86-0.99,R 2:0.93–0.99)来自修改后的SWAT是令人满意的。改进的算法以及胡杨的参数值和潜在范围是合理的。因此,改良的SWAT可以用于胡杨生物原料生产建模以及对其生长的水文和水质响应。

更新日期:2018-08-27
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