Vegetative growth of grasslands based on hyper-temporal NDVI data from the Modis sensor
作者： Marcos Cicarini Hott , Luis Marcelo Tavares de Carvalho , Mauro Antonio Homem Antunes , Polyanne Aguiar dos Santos , Tássia Borges Arantes
DOI: 10.1590/S0100-204X2016000700009
关键词: Grassland 、 Forestry 、 Environmental science 、 Moderate-resolution imaging spectroradiometer 、 Normalized Difference Vegetation Index 、 Spring season 、 Data series 、 Vegetative reproduction
摘要: The objective of this work was to analyze the development grasslands in Zona da Mata, state Minas Gerais, Brazil, between 2000 and 2013, using a parameter based on growth index normalized difference vegetation (NDVI) from moderate resolution imaging spectroradiometer (Modis) data series. Based temporal NDVI profiles, which were used as indicators edaphoclimatic conditions, (GI) estimated for 16‑day periods throughout spring season 2012 early being compared with average GI 2011, reference period. Currently, grassland areas Mata occupy approximately 1.2 million hectares. According methods, 177,322 ha (14.61%) these have very low vegetative growth; 577,698 ha (45.96%) 433,475 ha (35.72%) balanced 39,980 ha (3.29%) high 5,032 ha (0.41%) growth. had predominantly during studied period, NDVI/Modis series is useful source regional assessments.
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