论文部分内容阅读
利用缅甸地区2000年和2005年Landsat TM/ETM+、MOIDS VCF(Vegetation Continuous Fields)影像生成缅甸森林覆盖变化图,统计缅甸森林覆盖变化图,发现缅甸2000—2005年森林年均损失率为0.68%。统计缅甸全国28个森林和野生动物保护区核心区的森林覆盖变化情况,发现28个保护区核心区森林年均损失率为0.33%,低于全国平均值,表明保护区对缅甸森林起到保护作用。统计3个具有代表性的保护区Parsar、Kahilu、Nat_ma_Taung核心区及缓冲区的森林年均损失率,分析发现造成保护区森林严重损失的原因主要是迁移农业,其次是非法伐木。
Burma forest cover change maps were generated using Landsat TM / ETM + and MOIDS VCF (Vegetation Continuous Fields) images in Myanmar in 2000 and 2005 respectively. The change of forest cover in Myanmar was analyzed. The average annual forest loss in Myanmar from 2000 to 2005 was 0.68%. The change of forest coverage in the core areas of 28 forest and wildlife reserves in Myanmar was analyzed. The average annual loss rate of forests in the core area of 28 protected areas was 0.33%, which was lower than the national average, indicating that the reserve protected forests in Myanmar effect. The average annual loss rate of forest in the core areas of Parsar, Kahilu, Nat_ma_Taung and buffer areas of three representative protected areas was analyzed. The analysis found that the main causes of the serious forest loss in the protected areas were mainly the relocation of agriculture and the second is the illegal logging.