| 摘要: |
| 一个生态系统在最优良条件下的生产力被称作生产潜力。本文采用现实森林生产力级数和期望森林生产力级数评价全省林地生产力。全省约6成县（市、区）的现实森林生产力级数低于25，全省约6成县（市、区）的期望森林生产力级数高于25，始兴县现实森林生产力级数和期望森林生产力级数都是最高的，分别为41和45；荔湾区、越秀区、海珠区和禅城区现实森林生产力级数和期望森林生产力级数都为0。频数分析表明，现实森林生产力级数 区间最多，共27个县（市、区）；期望森林生产力级数在在 区间最多，共36个县（市、区）。全省123个县级单位大致可分为5个类型，重点描述各个类型的主要特征，为区域性林业生产力布局调整和森林经营提供科学依据。 |
| 关键词: 林地生产力 现实森林生产力级数 期望森林生产力级数 聚类分析 频数分析 广东省 |
| DOI： |
| 投稿时间：2011-03-02修订日期：2011-05-10 |
| 基金项目: |
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| Study on Land Productivity Potential in Guangdong Province |
| Zhan Guo-Qiang |
| () |
| Abstract: |
| The realistic and anticipant productivity indices were calculated in the study to evaluate the land productivity in Guangdong province. About 60 percent counties’ realistic productivity index is less than 25 and its anticipant productivity index is more than 25. The realistic and anticipant productivity indices are 41 and 45; which are the highest in Guangdong province. The realistic and anticipant productivity indices of Liwan, Yuexiu, Haizhu and Chancheng are 0, which are the lowest in Guangdong province. By frequency analysis; the realistic forest productivity index is commonly distributed between 5 and 10, which comprise of 22.0% of the total counties. and anticipant forest productivity index is commonly distributed between 40 and 45, which comprise of 29.3% of the total counties. By cluster analysis, the 123 counties are divided into 5 types and its major characters were illustrated which is useful for forest productivity layout and forest management. |
| Key words: forest land productivity, realistic forest productivity index, anticipant forest productivity index, cluster analysis, frequency analysis, Guangdong province |
