With the theory of sustainable development as guide for the agriculture of China, farmland in Houhu region of the Jianghan Plain in China was selected for case-study on introduction of the niche-fitness theory into multi- suitability evaluation of tillage. Quantitative analysis of niche-fitness and restrictive factors for rice, wheat, cotton and rape, were carried out by means of calculating niche-fitness and limiting factors models. The results indicate that the niche-fitness value in this area is in medium and high side which can be able to m...
