恩施州县市林业生产情况的主成分分析研究

Principal Component Analysis of Forestry Production in Enshi Prefecture

为了研究恩施州8县市的林业生产情况,获取了反映林业生产情况的指标7项,并转换成人均指标;应用主成分分析法进行分析,得前3主成分已包含89.002 7%的信息量,以前3主成分为标准进行排序,鹤峰县排第1,利川市为第8,鹤峰县、宣恩县、建始县的林业生产情况高于恩施州平均水平,其他县市在平均水平以下;鹤峰县第1主成分得分值最高,建始县第2主成分得分值最高,利川市第1、2主成分值均偏低.

In order to study the forestry production of the eight counties / cities in Enshi Prefecture,we obtain seven indexes reflecting the forestry production and converted them into per capita indicators; using the principal components analysis method for analysis,we find the first three principal components contain89.0027% of the amount of information.With the first three principal components as the standard,Hefeng County ranked first and Lichuan City ranked the eighth.The forestry production of Hefeng County,Xuanen County and Jianshi County is higher than the average of Enshi Prefecture.Other counties and cities are below the average level; the first principal component of Hefeng County scores highest,the second principal component of Jianshi County scoves highest,the first and the second principal components value of Lichuan City is on the low side.