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The general trend of the natural forest pattern is from amass type to uniform type.
天然林的演替格局一般趋势是从集聚分布趋于均匀分布。
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Public Welfare Forest Farm:suburb recreation site pattern.
公益林场：近郊休闲游憩型开发模式。
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Public Welfare Forest Farm:suburb recreation site pattern.
公益林场：近郊休闲游憩型开发模式。
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