输入要求

AquaCrop 使用相对少量的显式参数和大部分直观的输入变量，这些变量要么广泛可用，要么可以使用简单的方法确定。输入包括天气数据、作物和土壤特征以及定义作物生长环境的管理实践。土壤特性分为土壤剖面和地下水特性，管理实践分为田间管理或灌溉管理实践（见图）

Weather data collected at field or from agro-meteorological stations

Minimum and maximum air temperature

ETo (use for ETo calculator)

Rainfall

CO₂ concentrations (predictions)

Calibrated and validated crop characteristics from database

Soil profile characteristics

field observations

default values in database

pedo transfer functions

gravel and permeability

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Characteristics of groundwater table

depth below soil surface

salinity

Field management practices

soil fertility level

practices that affect the soil water balance

weed management

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Characteristics of groundwater table

irrigation method

application depth and time of irrigation events

salinity of the irrigation water

AquaCrop - 联合国粮农组织作物水分生产力模型