CATCHCROP: modeling crop yield and water demand for integrated catchment assessment in Northern Thailand
CATCHCROP: modeling crop yield and water demand for integrated catchment assessment in Northern Thailand
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CATCHCROP：为泰国北部流域综合评估建立作物产量和需水量模型
DOI：
10.1016/s1364-8152(01)00074-3
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
W. Merritt
中科院分区：
文献类型：
--
作者：
Pascal Perez;N. Ardlie;P. Kuneepong;Claude R. Dietrich;W. Merritt
作为泰国北方水资源综合评估和管理项目的一部分，正在建立一个决策支持系统，以便为作物多样化和水资源分配提供指导。IWRAM软件将作物模型与水文和经济模型相结合。本文介绍的是一个综合作物模型，称为CATCHCROP，它能够模拟产量对水分亏缺和肥力耗竭的反应。外部和内部的制约因素在很大程度上影响了模型的构建。由于观测数据及其可靠性不足，需要使用概念性和公认的算法。与经济和水文模型的联系导致选择了10天的时间步长。该模型的独立版本已经过测试，对现有的数据集来自两个小集水区。第一个结果是相当令人满意的，但它是公认的，这种综合模型不应该被用于在农场地块一级评估耕作措施。
As part of an Integrated Water Resource Assessment and Management project (IWRAM) in Northern Thailand, a Decision Support System is being constructed in order to provide guidelines for crop diversification and water allocation. The IWRAM software integrates a crop model with hydrological and economic models. Presented here is the integrated crop model, called CATCHCROP, which is capable of simulating yield response to water deficit and fertility depletion. External and internal constraints have largely influenced the model construction. Paucity of observed data and its reliability required the use of conceptual and recognized algorithms. Linkages with the economic and hydrological models led to the choice of a 10-days time step. The stand-alone version of the model has been tested against available data sets coming from two small catchments. First results are fairly satisfactory but it is acknowledged that this kind of integrated model should not be used at the farm plot level to assess cropping practices.