Analysis on the dynamic balance between cultivated land supply and demand at multimeasures based on RS data

According to the specific situations in China, this paper discusses the application of RS data in analysing the dynamic balance between cultivated land supply and demand which is one of main tasks of the Ministry of Land and Resources of China. It points out that based on applying RS data to monitoring land use changes, we can make full use of RS data to extract the information required in the analysis on the balance, which is an important approach for dynamically mastering and regulating the balance. It presents the framework and main aspects for analysing the balance, including the environment of the balance, the elements of the balance, the state of the balance and the process of the balance, as well as analysis on the balance at multimeasures, such as the balance in quality, in Gross Amount, in Per capita Amount, in Region and in Time.