Abstract: This paper is a continuous study of references [1-2]. At first, we introduce the concept of assembles of ecosystems, and then discuss macro- and micro-synergetical methods for ecology study. Combining the two methods, by use of the macroscopic data (observable) outputted from the ecosystems, we can construct their GGLE, master their information changes between, before and after the generalized phase changes (e.g. community successions), and find out the action mechanisms of microscopic factors on macroscopic results. This may be a new approach to the study of action mechanisms of complex ecosystems.

Key words: ecosystems, nonlinearity, assemble, attractor, information, synergetics