摘要
在水文模型中耦合准确模拟农户灌溉用水行为的模块可以构建更符合实际的灌区水循环模型,可以定量计算农户灌溉用水对渠井结合灌区水循环的影响。以典型渠井结合灌区——陕西省宝鸡峡灌区为研究区,采用问卷调查与访谈的方式收集了大量的农业生产和农户灌溉用水数据,在深入分析灌溉用水影响因素互馈关系和渠井结合灌区水循环特征的基础上,采用Python语言构建了渠井结合灌区农户灌溉用水模型(HCLU模型),该模型由水文、作物、农户生计和灌溉行为4个模块组成,可以概化灌溉用水的各个环节并实现农户灌溉行为与水文物理过程之间的紧密耦合,定量计算灌溉水源、灌溉定额、灌水时间和灌溉方式等对灌区水循环的影响,模拟作物产量与灌溉量的关系,为灌区水资源可持续管理和农业种植结构的调整提供强有力的技术支撑。
A better hydrological model can be developed by coupling and accurately simulating the behavior of farmers’irrigation,which can be adopted to quantify the influence of farmers’irrigation on the hydrological cycle in canal-well combined irrigation district.In this paper,Baojixia irrigation district in Shaanxi Province was taken as an example,the question naire and interview methods were adopted first to collect data regarding to agricultural production and farmers irrigation practice.Then the factors affecting irrigation water demand and hydrological processes were analyzed.Finally,a Hydrological-Crop-Livelihood-Utility Model(HCLU)was developed by using Python language,which included hydrological,crop,livelihood and utility modules.In this model,hydrological processes,irrigation practices and crop management had been fully connected to quantify the impacts of irrigation on hydrological cycle and relationship between crop yield and irrigation.This model could be very helpful in terms of providing strong technical support for the sustainable management of water resources in the irrigation district and the adjustment of agricultural planting structure.
作者
潘嘉培
降亚楠
PAN Jiapei;JIANG Yanan(College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Shaanxi 712100;Key Laboratory of Agriculture Soil and Water Engineering in Arid and Semiarid of Ministry of Education, Northwest A&F University, Yangling, Shaanxi 712100)
出处
《水土保持学报》
CSCD
北大核心
2021年第6期293-301,共9页
Journal of Soil and Water Conservation
基金
国家重点研发计划项目(2016YFC0400305,2016YFC0401306)
国家自然科学基金项目(51409219)。
关键词
渠井结合灌区
农户灌溉用水模型
PYTHON
canal-well combined irrigation district
social hydrological model considering farmers’irrigation behavior
Python
