The sustainab~ development evaluation of typical m-ban eco-agriculture--A case study from the Agricultural Science an d

The sustainable development evaluation of eog-agriculture in the Agricultural Science and Technology Garden of Fujiabian Village in Nanjing City show that the comprehensive evaluating indexes of tea plants，fruit—trees and green plum in the garden are 3。481，3．240 and 3．227 respectively while the comprehensive evaluating indexes of traditional cultivated crops such as wheat and rice are 1．491 and 2。165 respectively．It is indicated that the cultivated structure in farmfield ecosystem should be adjusted to the directions of being high efficiency and harmony，making the most of local comparative advantage．decreasing the tota1 entropy and keeping the ordina1 structure in the system．