绿洲水土资源协调开发的SD模型──以哈密为例

SD Model of Coordinated Development for Water Resourse and Land Resourse in Oasis-Taking Hami City as an Example

本文以节水措施的实施、供需水系统的完善和农业结构的调整为前提，通过对哈密市水资源系统、供需各要素的相互关系及其所隐含的反馈信息的考察，建立了哈密市水土资源协调开发的SD模型。通过模型求解，得出了哈密市在一定水资源利用状况下的土地开发规模，并确立了与之相适应的耗水结构及作物种植结构。

On the base of examining water resource system, interrelation between de-mand and supply of water resourse and their implied feedback information, the paper hasbuilt SD mode1 for Hami city to develop water resourse and land coordinatedly through sav-ing water resourse, improving demanding and supplying system of water resourse and adjust-ing agricultural structure. By runing the model, deve1opment scale of land for Hami city iscalculated when how to use water is knowen, and stucture of using water and planting andarea of maximum land reclamation are calculated too.