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首页> 外文会议>Remote Sensing for Agriculture, Ecosystems, and Hydrology VII >A complete transformation of a forest environment detected by the fusion of 11 Spot and Landsat -TM images over 15 years. The example of a pioneer front in Peten, Guatemala
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A complete transformation of a forest environment detected by the fusion of 11 Spot and Landsat -TM images over 15 years. The example of a pioneer front in Peten, Guatemala

机译：15年内通过融合11张Spot和Landsat -TM图像检测到的森林环境发生了彻底的转变。危地马拉Peten先锋阵线的例子

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The experimentation takes place in the Maya Biosphere Reserve, in the heart of the Peten region in Guatemala. In this natural area intermingled with rivers and lakes, the forest which was in harmony with environmental conditions dominated all the space. However, the landscape has been undergoing a real transformation since the last 15 years. Since 1987, population has settled down regularly in succesion. They have appropriated, cleared and changed the native forest into pasture and milpa (field of corn). This process of systematic deforestation through large fires, has led to the creation of new rural societies, a new area of distinctly diverse uses. But the sudden and non control setting up of these populations threaten environment conditions. A conflict for land has appeared around and inside the Maya Biosphere Reserve, which is itself threatened. The State of Guatemala, as the NGO need a local and regional perception. And yet, faced with this unfinished speedy phenomenon, the lack of updated cartographic data of an area little known, high resolution remote sensing becomes an irreplaceable tool to understand such radical transformations. In order to understand spatio temporal process of this new rural pioneer front, to make a dynamic diagnosis, to date, to follow, to map, to update environmental and statistical data, the method of image processing proposed is based on satellite data fusions -Landsat-TM and Spot- by multidated approaches (11 images over 15 years), multi-scale (from local to regional) and multispectral (only one image resultant of 41 georeferenced channels); the results have been ratified by field work.
机译：实验在危地马拉佩滕地区中心的玛雅生物圈保护区进行。在这个充满河流和湖泊的自然区域中，与环境条件和谐相处的森林占据了整个空间。但是，自从过去15年以来，景观已经发生了真正的变化。自1987年以来，人口不断稳定下来。他们已经砍伐，砍伐并将原始森林变成了牧场和米尔帕（玉米田）。通过大火进行的有计划地砍伐森林的过程，导致了新农村社会的建立，这是一个用途迥异的新领域。但是，这些人口的突然和无控制地建立威胁了环境条件。玛雅生物圈保护区周围和内部都发生了土地冲突，该地区本身已受到威胁。作为非政府组织的危地马拉国需要地方和区域的看法。然而，面对这种未完成的快速现象，缺乏鲜为人知的高分辨率遥感影像区域的更新制图数据成为了解这种根本性转变的不可替代的工具。为了了解这个新的农村先驱阵线的时空过程，以进行动态诊断，迄今为止，遵循，制图，更新环境和统计数据，提出的图像处理方法基于卫星数据融合-Landsat -TM和Spot-采用多种方法（15年中有11张图像），多尺度（从本地到区域）和多光谱（仅一张图像是41个地理参考通道的结果）；结果已通过现场工作批准。

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