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首页> 外文学位 >Vegetation time series analysis of the Loxahatchee Slough, Palm Beach County, Florida: A GIS incorporating satellite imagery with black and white aerial photography.
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Vegetation time series analysis of the Loxahatchee Slough, Palm Beach County, Florida: A GIS incorporating satellite imagery with black and white aerial photography.

机译：佛罗里达州棕榈滩县Loxahatchee泥沼的植被时间序列分析：一种结合了卫星图像和黑白航空摄影的GIS。

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摘要

The Loxahatchee Slough is the largest wilderness island refuge existing in Palm Beach County, Florida. Cultural impacts have altered the hydrology of the area. This study provides a database of historical and geographical information regarding the Slough. Aerial photography and satellite imagery from pre- and post-channelization dates are classified according to vegetation ecosystems. GIS analysis is used to compare these diverse data sets. Changes in hydroperiod are examined, using vegetation as an indicator. Results show a general trend toward dryer hydroperiod vegetation land cover. Since 1979, the Army Corps of Engineers has raised water levels back toward pre-channelization levels, in a portion of the study area known as the Historic Region. Results indicate a positive response, with a net increase of longer hydroperiod vegetation in this region since 1979.
机译：Loxahatchee Slough是存在于佛罗里达州棕榈滩县的最大的荒岛避难所。文化影响改变了该地区的水文状况。这项研究提供了有关泥沼历史和地理信息的数据库。通道化前后的航空摄影和卫星图像根据植被生态系统进行分类。 GIS分析用于比较这些不同的数据集。以植被为指标检查水文周期的变化。结果表明，干水期植被土地覆盖具有总体趋势。自1979年以来，陆军工程兵部已将研究区中称为历史区的一部分的水位提高到渠道化之前的水平。结果表明反应积极，自1979年以来该地区较长的水生期植被净增加。

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