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

Accueil du site → Master → Etats Unis → 2019 → North Dakota Spring Wheat Yield In Relation To Temperature And Precipitation

North Dakota University (2019)

North Dakota Spring Wheat Yield In Relation To Temperature And Precipitation

Khan, Manna Begum

Titre : North Dakota Spring Wheat Yield In Relation To Temperature And Precipitation

Auteur : Khan, Manna Begum

Université de soutenance : North Dakota University

Grade : Master of Science (MS) 2019

Résumé
Global ocean and land temperature is rising. The Intergovernmental Panel on Climate Change (IPCC) 2014 report indicated the global average combination of land and ocean surface temperature increase 33.53° F (0.85°C) over the last 1400 years in the Northern Hemisphere (IPCC 2014). Global temperature and precipitation patterns are changing ; it affects North Dakota wheat production. This crop remains crucial to the state’s economy even with the rise of corn and soybean production. Temperature and precipitation change’s effect in North Dakota already has been observed with shorter and milder winters. The study area is the state’s nine agricultural districts determined by the United States Department of Agriculture (USDA). The climate data was collected from the National Oceanic and Atmospheric Administration (NOAA), and agriculture data for spring wheat was obtained from the National Agricultural Statistics Services (NASS). The research investigated if temperature and precipitation variability influence spring wheat yield in the period of 1986-1990 compared to period of 1991-1995. It was hypothesized that an increase in temperature will decrease spring wheat yield and that an increase in precipitation will increase spring wheat yield. The results show that warmer temperatures and drought conditions are detrimental to spring wheat production in comparison to precipitation. Increases of precipitation would not necessarily provide increases in spring wheat yield. The overall North Dakota’s spring wheat yield is governed by inter-annual variability in temperature and precipitation. Thus, this study has importance in better understanding North Dakota’s future spring wheat production in a time of global climate change.

Présentation

Version intégrale (9,1 Mb)

Page publiée le 31 janvier 2021