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Gray predication for forest resources changes of NingDe city
Author(s): ZHANG Yun
Pages: 36-
38
Year: 2004
Issue:
4
Journal: EAST CHINA FOREST MANAGEMENT
Keyword: 宁德市; 森林资源; 灰色; 预测;
Abstract: 应用灰色系统理论与方法,以宁德市1997-2002年资源建档数据为基础,建立灰色预测GM(1,1)模型,对宁德市森林资源主要指标(1、森林覆盖率;2、有林地面积;3、活立木总蓄积量)的变化进行预测,由于资源建档数据具有连续性、可比性等特征,经检验,预测值的精度较高,可以对宁德市未来森林资源数据进行预测.
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