基于森林数量、质量和空间分布的森林生态功能评价研究

Evaluation of Forest Ecological Function by Coverage,Quality and Distribution

以森林数量、质量和空间3个因子分布为基本评估因素,建立了一个区域森林生态功能评价综合指数,并利用2004、2009年2期浙江省森林资源连续清查样地数据进行实证研究。结果表明:浙江省森林生态功能指数从2004年的0.580 2上升到2009年的0.600 3,增长了0.020 1,增长比例为3.46%,其中森林数量因素推动的生态功能指数增加0.016 7,森林质量因素推动的指数增加0.066 1,森林分布因素推动的指数增加-0.022 4,这与浙江省过去5年森林的变化是相符的。

An integrated index for evaluating regional forest ecological function was proposed taking forest coverage,quality and distribution as basic elements.A case study based on continuous forest inventory data of year 2004 and 2009 of Zhejiang province showed that integrated index during five years increased from 0.5802 to 0.6003.Among the increase,0.0167 was from forest coverage,0.0661 from quality and-0.0224 from distribution.The result explained the change of forest in past 5 years in the province.