关键词: 系统动力学, 图论, 流率基本入树建模法, 水土资源联合配置, 句容市

Abstract: Aiming at of regional joint allocation of water and land resources, in the combination of multidisciplinary integration with the new technology application, and based on joint allocation system of water and land resources, the interactive relationship of allocation system of water resources and land with the development of society, economy, and environment was quantitatively described. This paper creates a complicated simulation system of water resources-land resources-social economy-ecology with the combination of the related elements of joint allocation of water resources and land resources(such as water demand, water supply, land demand and supply, and ecological environment impacts) and social, economic and environmental systems and establishes a comparable complete model of regional joint allocation of water and land resources using an improved rate-variable fundamental in-tree SD modeling based on graph theory. For Jurong, a city situated at hilly area in the South of Jiangsu Province, the coupled system of water resources, land resources and social and economic environment under various water resources and land resources allocations were simulated and analyzed. The results can provide basic support for the unified management of water and land resources.

Key words: system dynamics, graph theory, rate-variable fundamental in-tree modeling, joint allocation of water and land resources, Jurong City