⑵ 竞争指标 ( Competition Index ):描述某一林木由 于受周围竞争木的影响而承受竞争压力的数量尺 度。它是反映林木间竞争强烈程度的数量指标。
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成长竞争指标 Growth Competitiveness Index ; GCI
的成长竞争指标 Growth Competitiveness Index ; GCI
年成长竞争指标 Growth Competitiveness Index
成长竞争力指标 growth competitiveness index
全球竞争力指标 Global Competitiveness Index ; GCI
商业竞争力指标 Business Competitiveness Index
当前竞争力指标 current competitiveness index
市场竞争度指标 market competition rate
本文用主成分分析的方法构造竞争指标并建立单木生长模型。
This paper forms competition index by means of principle elements analysis and sets up individual tree growth model.
选取5种竞争指标，建立人工落叶松林木胸径、树高和冠长与各竞争指标间的相关关系。
The relationships among 5 competition index and DBH, tree height and crown length have been established.
结果表明：该竞争指标对杉木人工林适用，所建立的单木生长模型符合精度要求，可用于预估林分生长。
Result shows, This competition index is suitable to Chinese fir man-made forest, and individual tree growth model accords with the demands of accuracy, it can be used to estimate growth of stands.
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