绿洲-荒漠交错带GSVAC水热传输可视化模拟系统的开发

Development of the Visualized Simulating System for Measuring Water-heat Transfer in Oasis-desert Ecotones

以天山北麓三工河流域绿洲-荒漠交错带为研究对象，以可视化开发语言VisualBasic6．0作为主要开发工具，结合Access数据库，在传统SPAC系统原理的基础上开发了绿洲-荒漠交错带水热传输可视化模拟系统。该系统具备系统管理、数据输入、数据处理、信息查询、模型计算、地下水预测、图形绘制、结果输出等功能。充分考虑到实时预测的实际工作要求，在系统开发的过程中，力求将本项目所研制的各种预测方案集成为一个可实时业务化运行的软件系统。通过该模拟系统可预测绿洲-荒漠交错带植被蒸腾量、地表蒸发量和植被的根系吸水速率以及土壤水热动态传输过程，为绿洲-荒漠交错带地下潜水-土壤-植被-大气连续体中数据的管理、地下水的预测和GSVAC水热传输动态的计算机模拟提供了强大的软件环境。

In this paper, a visualized simulating system for measuring water-heat transfer in oasis-desert ecotones is developed based on the traditional SPAC system and Visual Basic language combining Access database, and a case study is carried out in the Sangong River Watershed in north piedmont of the Tianshan Mountains. The system includes the functions of system management sub-database, data-importing sub-database, data-processing sub-database, module-calculating sub-database, groundwater level predicting sub-database, graphics-protracting sub-database, data-exporting sub-database, and information-querying sub-database. The values of vegetation transpiration, ground surface evaporation, vegetation canopy temperature, vegetation canopy vapor pressure, sensible heat flux, latent heat flux and ground surface heat flux in the vegetation-atmosphere sub-system, and water-absorbing capacity, soil temperature distribution and water-containing distribution in the groundwater-soil sub-system are calculated using GSVAC model. These can provide the powerful software support for the management, prediction and simulation of water-heat transfer in oasis-desert ecotones.