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Remote Sens. 2017, 9(1), 73; doi:10.3390/rs9010073

MODIS Time Series to Detect Anthropogenic Interventions and Degradation Processes in Tropical Pasture

1
Agrosatélite Geotecnologia Aplicada, Florianópolis 88032, Brazil
2
Divisão de Sensoriamento Remoto, Instituto Nacional de Pesquisas Espaciais, São José dos Campos 12227, Brazil
3
The Boeing Company, Boeing Research & Technology—Brazil, São José dos Campos 12227, Brazil
4
Brazilian Agricultural Research Corporation (EMBRAPA), Monitoramento por Satélite, Campinas 70770, Brazil
5
Canopy Remote Sensing Solutions, Florianópolis 88032, Brazil
6
Centro Regional da Amazônia, Instituto Nacional de Pesquisas Espaciais, Bélem 66077-830, Brazil
*
Author to whom correspondence should be addressed.
Academic Editors: Martin Brandt, Torbern Tagesson, Stephanie Horion, Rasmus Fensholt, Alfredo R. Huete, Richard Gloaguen and Prasad S. Thenkabail
Received: 1 September 2016 / Revised: 28 December 2016 / Accepted: 1 January 2017 / Published: 14 January 2017
(This article belongs to the Special Issue Remote Sensing of Land Degradation and Drivers of Change)
View Full-Text   |   Download PDF [3618 KB, uploaded 14 January 2017]   |  

Abstract

The unavoidable diet change in emerging countries, projected for the coming years, will significantly increase the global consumption of animal protein. It is expected that Brazilian livestock production, responsible for close to 15% of global production, be prepared to answer to the increasing demand of beef. Consequently, the evaluation of pasture quality at regional scale is important to inform public policies towards a rational land use strategy directed to improve livestock productivity in the country. Our hypothesis is that MODIS images can be used to evaluate the processes of degradation, restoration and renovation of tropical pastures. To test this hypothesis, two field campaigns were performed covering a route of approximately 40,000 km through nine Brazilian states. To characterize the sampled pastures, biophysical parameters were measured and observations about the pastures, the adopted management and the landscape were collected. Each sampled pasture was evaluated using a time series of MODIS EVI2 images from 2000–2012, according to a new protocol based on seven phenological metrics, 14 Boolean criteria and two numerical criteria. The theoretical basis of this protocol was derived from interviews with producers and livestock experts during a third field campaign. The analysis of the MODIS EVI2 time series provided valuable historical information on the type of intervention and on the biological degradation process of the sampled pastures. Of the 782 pastures sampled, 26.6% experienced some type of intervention, 19.1% were under biological degradation, and 54.3% presented neither intervention nor trend of biomass decrease during the period analyzed. View Full-Text
Keywords: EVI2 time series; biophysical parameters; phenological metrics; biological degradation; pasture reformation; pasture renewal; pasture recovery EVI2 time series; biophysical parameters; phenological metrics; biological degradation; pasture reformation; pasture renewal; pasture recovery
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MDPI and ACS Style

Aguiar, D.A.; Mello, M.P.; Nogueira, S.F.; Gonçalves, F.G.; Adami, M.; Rudorff, B.F.T. MODIS Time Series to Detect Anthropogenic Interventions and Degradation Processes in Tropical Pasture. Remote Sens. 2017, 9, 73.

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