摘要: |
利用1983年到2007年森林资源连续清查6期数据,从资源数量、结果、质量、地理分布等到4方面,分析研究了广东省森林资源的动态变化情况和原因。结果表明:林地面积、森林面积、林分蓄积和林分生物量呈增加趋势;中幼林和用材林仍是构成森林资源的主体,但阔叶林逐渐成为优势森林类型,生态林比重明显提高;虽然林地生产力在逐渐提高,但森林质量仍处于较低水平;全省森林资源分布仍呈现北部资源多、南部资源少、东西两翼沿海较平均的格局。 |
关键词: 广东省 森林资源 森林质量 动态变化 |
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基金项目:广东省林业局科技计划项目“广东省森林资源与生态状况综合监测体系研究”(编号2007-14)和“基于3S的森林资源与生态状况年度监测技术研究”(编号2009-09) |
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Research on Dynamic Changes of Forest Resources in Guangdong Province based on the Continuous Forest Inventory Data |
Ye Jin-Sheng
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Abstract: |
The dynamic changes of forest resources in Guangdong province and its causes were analyzed and studied from four respects of forest resources quantity, results, qualify and geographical distribution based on six periods continuous forest inventory data from 1983 to 2007. The results showed that forest land area, forest area, forest volume and biomass had increased, broad-leaf forest gradually turned to be dominant forest while middle-aged and young forest were still the main part of forest resources now, and the portion of ecological forest would dramatically increased. Although forest land productivity had been gradually growing, the forest quality was still low. It also indicated that more forest resources distributed in northern Guangdong than in the southern part, and the distribution was much evener in east and west coast of Guangdong province. |
Key words: Guangdong Province Forest Resources Forest Quality Dynamic Changes |