Sustainability of Cultivated Land Resources Based on Analysis of Assets and Liabilities： Taking Quzhou County of Heibei Province as an Example

Cultivated land resources can produce basic materials needed for human production and life.So sustainability of cultivated land resources directly or indirectly affects sustainable development of human society，economy，culture and so on.Based on theory of comparative advantage，method of analyzing cultivated land resource assets and liabilities was analyzed，and sustainability of cultivated land resources of ten towns of Quzhou county was evaluated to provide decision basis for regional economic and social sustainable development.After a series of calculations，final results were obtained.Relative net asset of Anzhai town was the highest of 31.54%，and its sustainability of cultivated land resources was strongest.Relative net asset of Quzhou town was of -39.23%，and its sustainability of cultivated land resources was the lowest.