Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Accueil du site → Master → Canada → AGRICULTURAL VULNERABILITY TO DROUGHT IN SOUTHERN ALBERTA : A QUANTITATIVE ASSESSMENT

University of Lethbridge (2007)

AGRICULTURAL VULNERABILITY TO DROUGHT IN SOUTHERN ALBERTA : A QUANTITATIVE ASSESSMENT

Xiaomeng Ren

Titre : AGRICULTURAL VULNERABILITY TO DROUGHT IN SOUTHERN ALBERTA : A QUANTITATIVE ASSESSMENT

Auteur : Xiaomeng Ren

Université de soutenance : University of Lethbridge Canada

Grade : Master of Science 2007

Résumé
Agricultural vulnerability is generally referred to as the degree to which agricultural systems are likely to experience harm due to a stress. In this study, an existing analytical method to quantify vulnerability was adopted to assess the magnitude as well as the spatial pattern of agricultural vulnerability to varying drought conditions in Southern Alberta. Based on the farm reported data and remote sensing imagery, two empirical approaches were developed to implement vulnerability assessment in Southern Alberta at the quarter-section and 30 meter by 30 meter pixel levels. Cereal crop yield and the Standardized Precipitation Index (SPI) were specified as the agricultural wellbeing and stress pair in the study. Remote sensing data were used to generate cereal crop yield estimations, which were then implemented in vulnerability quantification. The utility of the remote sensing data source for vulnerability assessment were proved. The spatial pattern of agricultural vulnerability to different severity and duration of drought were mapped.

Présentation (Amicus)

Version intégrale

Page publiée le 29 décembre 2011, mise à jour le 7 février 2018