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Vegetation cover change detection in Chamela-Cuixamala, Mexico

机译：墨西哥Chamela-Cuixamala的植被覆盖变化检测

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In Mexico, and everywhere else, the ecosystems are constantly changing either by natural factors or anthropogenic activity. Remote sensing has been a key tool to monitoring these changes throughout history and also to understanding the ecological dynamics. Hence, sustainable development plans have been created in order to improve the decision-making process; thus, this paper analyses deforestation impact in a very important natural resourcing area in Mexico, considering land cover changes. The study area is located in the coast of Jalisco, Mexico, where deforestation and fragmentation as well as high speed touristic development have been the causes of enormous biodiversity losses; the Chamela-Cuixamala Biosphere Reserve is located within this area. It has great species richness and vast endemism. The exploitation of this biome is widespread all over the country and it has already had an impact in the reserve. The change detection multi-temporal study uses Landsat satellite imagery during the 1970-2003 time period. Thus, the objective of change detection analysis is to detect and localize environmental changes through time. The change detection method consists in producing an image of change likelihood (by post-classification, multivariate alteration detection) and thresholding it in order to produce the change map. Experimental results confirmed that the patterns of land use and land cover changes have increased significantly over the last decade. This study also analyzes the deforestation impact on biodiversity. The analysis validation was carried out using field and statistic data. Spatial-temporal changing range enables the analysis of the structural and dynamic effects on the ecosystem and it enhances better decision-making and public environmental policies to decrease or eliminate deforestation, the creation of natural protected areas as a biodiversity conservation method, and counteracting the global warming phenomena.
机译：在墨西哥以及其他任何地方，生态系统都在不断受到自然因素或人为活动的影响。遥感一直是监测整个历史过程中这些变化以及了解生态动态的关键工具。因此，制定了可持续发展计划以改善决策过程；因此，考虑到土地覆被变化，本文分析了毁林对墨西哥一个非常重要的自然资源保护区的影响。该研究区位于墨西哥哈利斯科州的沿海地区，森林砍伐和破碎以及旅游业的高速发展是造成生物多样性遭受巨大损失的原因； Chamela-Cuixamala生物圈保护区位于该区域内。它具有丰富的物种丰富性和广泛的特有性。该生物群落的开发在全国各地都很普遍，已经对保护区产生了影响。变化探测多时相研究使用了1970-2003年期间的Landsat卫星图像。因此，变化检测分析的目的是随时间检测和定位环境变化。变化检测方法包括产生变化可能性的图像（通过后分类，多变量变更检测）并对其进行阈值处理以产生变化图。实验结果证实，在过去十年中，土地利用和土地覆被变化的模式已大大增加。这项研究还分析了森林砍伐对生物多样性的影响。使用现场和统计数据进行分析验证。时空变化范围使人们能够分析对生态系统的结构和动态影响，并增强了更好的决策和公共环境政策，以减少或消除森林砍伐，建立自然保护区作为生物多样性保护方法并抵消全球变暖现象。

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