Plant primary production is a key driver of several ecosystem functions in seasonal marshes, such as water purification and secondary production by wildlife and domestic animals. Knowledge of the spatio-temporal dynamics of biomass production is therefore essential for the management of resources-particularly in seasonal wetlands with variable flooding regimes. We propose a method to estimate standing aboveground plant biomass using NDVI Land Surface Phenology (LSP) derived from MODIS, which we calibrate and validate in the Doñana National Park'smarsh vegetation. Out of the different estimators tested, the Land Surface Phenology maximum NDVI (LSP-Maximum-NDVI) correlated best with ground-truth data of biomass production at five locations from 2001-2015 used to calibrate the models (R 2 = 0.65). Estimators based on a single MODIS NDVI image performed worse (R 2 ≥ 0.41). The LSP-Maximum-NDVI estimator was robust to environmental variation in precipitation and hydroperiod, and to spatial variation in the productivity and composition of the plant community. The determination of plant biomass using remote-sensing techniques, adequately supported by ground-truth data, may represent a key tool for the long-term monitoring and management of seasonal marsh ecosystems.

Modeling biomass production in seasonal wetlands using MODIS NDVI land surface phenology / Lumbierres, M.; Mendez, P. F.; Bustamante, J.; Soriguer, R.; Santamaria, L.. - In: REMOTE SENSING. - ISSN 2072-4292. - 9:4(2017), pp. 1-18. [10.3390/rs9040392]

Modeling biomass production in seasonal wetlands using MODIS NDVI land surface phenology

Lumbierres M.
Primo
;
2017

Abstract

Plant primary production is a key driver of several ecosystem functions in seasonal marshes, such as water purification and secondary production by wildlife and domestic animals. Knowledge of the spatio-temporal dynamics of biomass production is therefore essential for the management of resources-particularly in seasonal wetlands with variable flooding regimes. We propose a method to estimate standing aboveground plant biomass using NDVI Land Surface Phenology (LSP) derived from MODIS, which we calibrate and validate in the Doñana National Park'smarsh vegetation. Out of the different estimators tested, the Land Surface Phenology maximum NDVI (LSP-Maximum-NDVI) correlated best with ground-truth data of biomass production at five locations from 2001-2015 used to calibrate the models (R 2 = 0.65). Estimators based on a single MODIS NDVI image performed worse (R 2 ≥ 0.41). The LSP-Maximum-NDVI estimator was robust to environmental variation in precipitation and hydroperiod, and to spatial variation in the productivity and composition of the plant community. The determination of plant biomass using remote-sensing techniques, adequately supported by ground-truth data, may represent a key tool for the long-term monitoring and management of seasonal marsh ecosystems.
2017
Above ground biomass; Land Surface Phenology; MODIS time series; NDVI; Wetlands
01 Pubblicazione su rivista::01a Articolo in rivista
Modeling biomass production in seasonal wetlands using MODIS NDVI land surface phenology / Lumbierres, M.; Mendez, P. F.; Bustamante, J.; Soriguer, R.; Santamaria, L.. - In: REMOTE SENSING. - ISSN 2072-4292. - 9:4(2017), pp. 1-18. [10.3390/rs9040392]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1402698
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