海南岛生态环境质量分析评价

运用遥感和地理信息系统等技术 ,按照景观生态学的原理 ,对海南生态环境现状进行了评价 ,并对近十年来的变化进行了对比分析。结果表明 ,海南生态环境质量由中部向外依次降低 ,天然林从数量上看面积在减少 ,从空间上看沿着边缘线向中部山区退缩。另外 ,土地沙化 /土地退化在向着恢复逆转的方向发展。

Evaluation on Eco-Environmental Quality of Hainan Island

Evaluation and comparison of the eco environmental quality of Hainan Island was carried out with the aid of remote sensing and GIS and in line with the principle of landscape ecology. The results show that the eco environmental quality is declining gradually from the center of the island outwards, with its rainforests diminishing in area and shrinking inwards, and that human disturbance goes deep into the rainforest ecosystem. Nevertheless, desertification and land degradation develops adversely in the island.