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首页> 外文会议>International Conference on Water Resources, Coastal and Ocean Engineering >Modelling the crop water requirement using FAO-CROPWAT and assessment of water resources for sustainable water resource management: A case study in Palakkad district of humid tropical Kerala, India
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Modelling the crop water requirement using FAO-CROPWAT and assessment of water resources for sustainable water resource management: A case study in Palakkad district of humid tropical Kerala, India

机译：使用FAO-Cheacwat建模作物水需求和可持续水资源管理水资源评估 - 以印度湿润热带喀拉拉邦Palakkad区为例

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Crop water requirements of crops in agro-ecological units (AEUs) of Palakkad district of humid tropical Kerala computed with CROPWAT 8.0 using the meteorological parameters.The major cultivated crops are rice, coconut, banana, arecanut, vegetables, pulses, rubber, tea, coffee, cotton etc. The total water requirement for these crops in various agro-ecological zones has been computed. Using the evapotranspiration (ET_0) and effective rainfall in each agro-ecological unit (AEU), a climatic water balance has been worked out. The net irrigation demand, the gross irrigation demand and irrigation interval for the various crops grown in different AEUs have been computed. The gross irrigation demand for the district is 1146 Mm~3, in which 981 Mm~3 is from surface water and 165 Mm~3 from groundwater sources. Water balance analysis was done for the current scenario and future demand for agriculture, domestic and industrial demand. The projected future total water demands for irrigation, drinking and industrial purpose will be 3841 Mm~3. However, the secondary data showed that utilizable water resources of Palakkad district is less and will create a deficit scenario. This deficit indicates that if the total area is brought under irrigation there will be deficit years and during such periods deficit irrigation or reduction in command area may have to be adopted. A wide spectrum of scenarios has been discussed in the paper along with the guidelines for future management of water resources.
机译：作物在农业生态单位潮湿的热带喀拉拉邦伯拉卡德区的作物需水量（AEUs）与CROPWAT 8.0计算使用气象参量。主要栽培作物有水稻，椰子，香蕉，槟榔，蔬菜，豆类，橡胶，茶叶，咖啡，棉花等。已经计算了各种农业生态区的这些作物的总需水量。在每个农业生态单位（AEU）中使用evapotranspiration（et_0）和有效降雨，已经解决了气候水平。已经计算了净灌溉需求，不同Aeus种植的各种作物的灌溉需求和灌溉间隔。该地区的灌溉需求是1146 mm〜3，其中981毫米〜3来自地表水和地下水来源165毫米〜3。为目前的场景和未来农业需求，国内和工业需求进行了水平衡分析。预计未来的灌溉，饮酒和工业用途的总需求将是3841毫米〜3。然而，二级数据显示，Palakkad区的可利用水资源较少，并将产生赤字情景。这种赤字表明，如果灌溉所带来的总面积将会有赤字年，并且在此期间，可能必须通过赤字灌溉或减少指挥范围。本文已经讨论了广泛的情景以及未来水资源管理的指导方针。

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