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Tottori University (2011)

Estimation of pasture productivity in Mongolian grasslands : field survey and model simulation

Bat-oyun Tserenpurev

Titre : Estimation of pasture productivity in Mongolian grasslands : field survey and model simulation

Auteur  : Bat-oyun Tserenpurev

Université de soutenance  : Tottori University

Grade : DOCTOR OF PHILOSOPHY 2011

Présentation

The main objectives of this thesis were to quantify model input parameters (PAR/SR and RUE) and to examine the suitability of the parameterized PEM in estimating pasture productivity in different vegetation zones of Mongolia. Specific objectives of the research were given below. • To assess the effects of precipitation and grazing on AGB (Chapter 2). • To quantify PAR/SR and to investigate its dependence on sky condition and atmospheric water vapor condition in steppe grassland habitats (Chapter 3). • To investigate the effects of water and temperature stress on vegetation growth and radiation interception in grasslands, to examine the relationship between fIPAR and NDVI, and to quantify RUE for steppe grassland (Chapter 4). • To perform a sensitivity analysis of the effect of climate on ANPP and to test model simulations with quantified parameters for four sites in different vegetation zones (Chapter 5).

Annonce

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Page publiée le 31 octobre 2016, mise à jour le 19 avril 2020