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首页> 外文期刊>Journal of Remote Sensing & GIS >Monitoring Land-Use and Land-Cover Change in the Eastern Gulf Coastal Plain 3 using Multi- temporal Landsat imagery
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Monitoring Land-Use and Land-Cover Change in the Eastern Gulf Coastal Plain 3 using Multi- temporal Landsat imagery

机译：使用多时态Landsat影像监测东部墨西哥湾沿海平原3的土地利用和土地覆盖变化

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Rapid population growth and intensifying human activities have driven significant changes in coastal plains. As one of the largest coastal plains in the world, the U.S. Gulf Coastal Plain supports a huge population and provides numerous goods and ecological services to the human society. Spatial information on Land-Use and Land-Cover Change (LULCC) is essential for accurate assessment of human impacts on the structure and functioning of coastal ecosystems in this region. In this study, the Florida Panhandle region was selected as a case to characterize and detect changes in Land Use/Land Cover (LULC) in the Gulf Coastal Plain from 1985 to 2005. Landsat TM images in 1985, 1996 and 2005 were collected and processed to retrieve LULC information and to reflect temporal changes of major LULC types. Results indicated that urban areas expanded quickly and increased by about 79% from 1985 to 2005. Crop/pasture decreased from 1985 to 1996 but increased quickly during 1996-2005 by replacing large area of forestland in the eastern part of the study area. Forest/woody wetland increased from 1985 to 1996 but decreased in the later time period. Population growth and tree plantation were identified as the two major driving forces for LULCC in this area. Our results imply that urban sprawl and cropland/pasture expansion as well as tree plantation could potentially affect productivity, carbon and nutrient cycling, as well as water quality in coastal ecosystems of the Gulf of Mexico. Uncertainties associated with satellite image classification and scale effect should be further addressed in future research.
机译：人口的快速增长和人类活动的加剧推动了沿海平原的重大变化。作为世界上最大的沿海平原之一，美国墨西哥湾沿海平原拥有庞大的人口，并为人类社会提供了许多商品和生态服务。关于土地使用和土地覆盖变化（LULCC）的空间信息对于准确评估人类对该区域沿海生态系统的结构和功能的影响至关重要。在这项研究中，选择佛罗里达州Panhandle地区为例，以表征和检测1985年至2005年墨西哥湾沿岸平原土地利用/土地覆被（LULC）的变化。收集并处理了1985年，1996年和2005年的Landsat TM图像检索LULC信息并反映主要LULC类型的时间变化。结果表明，城市面积迅速扩大，从1985年至2005年增长了约79％。从1985年至1996年，作物/草场减少了，但在1996-2005年间，通过替换研究区域东部的大片林地，其增长迅速。从1985年到1996年，森林/木质湿地有所增加，但在随后的时期有所减少。人口增长和植树造林被认为是该地区低消费量国家的两个主要推动力。我们的结果表明，城市扩张和农田/草场的扩张以及植树造林可能会影响墨西哥湾沿海生态系统的生产力，碳和养分循环以及水质。与卫星图像分类和尺度效应有关的不确定性应在未来研究中进一步解决。

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