西双版纳橡胶种植特点及其对热带森林景观影响的遥感研究

利用遥感技术研究西双版纳橡胶分布格局、时空动态及其对热带森林景观的影响。研究表明： 西双版纳橡胶种植既有明显的地域分布和地带分布差异特征，也有很高的时空动态度； 橡胶种植对土壤侵蚀作用不明显，但是使周边环境破碎度加大，热带森林异质性自然景观向单一人工斑块化景观发展； 西双版纳橡胶种植获得了巨大的社会效益和经济效益，也对热带森林的稳定性和多样性造成威胁。

SPATIAL AND TEMPORAL DYNAMICS OF RUBBER PLANTATION AND ITS IMPACTS ON TROPICAL FOREST IN XISHUANGBANNA

Xishuangbanna is one of the largest tropical forest vegetation and highest biodiversity regions and also an important rubber- producing area in China. This paper has studied the impacts of rubber plantation on the fragmentation of tropical forests and its substitution for natural forests. It is concluded that the rubber plantation in Xishuangbanna shows significant geophysical patterns and high spatial and temporal dynamics. Rubber plantation has had no significant impacts on soil erosion but has evidently accelerated fragmentation, resulting in the homogeneity of landscape. Although rubber plantation has social and economic benefit in a certain degree, it has obviously threatened the biodiversity and stability of the tropical forest ecosystem.