In this paper. 57 specific attributes which arc suitable for the classification of the village level aprofCoSystems are selected according to the principles of agroeccSy-stem. These specific attributes are taken for classifying the agroecosystems of 77 villages (production brigades) in some counties of Beijing suburbs and 5 methods of non-overlapping intrinsic hierarchical agglomerative analysis are adopted4The results are as follow: except the single linking method, the other methods adopted can classifty ...