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The three domain supplie and contact with each other. It is visible exhibition that urban green compound function; Aim at Lanzhou instance, this dissertation brings forward principle and lodestar of city green system such as system conformity, adjust measures to local conditions, humanist. And a so-called two mountain barrier, Yellow River corridor, plus fish skeleton shape, plus green block urban green system space framework is sum up, which adapts to society development demand and takes on a zone pertinence, hereditable urban traditional altiplano landscape characteristic and science zoology benefiting from urban green system;