Essays about: "Crop adaptation"

Showing result 21 - 25 of 40 essays containing the words Crop adaptation.

  1. 21. Multitask Convolutional Neural Network Emulators for Global Crop Models - Supervised Deep Learning in Large Hypercubes of Non-IID Data

    University essay from Lunds universitet/Matematisk statistik

    Author : Amanda Nilsson; [2020]
    Keywords : Multitask Learning; Convolutional Neural Network CNN ; Branched Neural Network; Dynamic Global Vegetation Models DGVM ; Automated Feature Extraction; Feature Importance; Supervised Machine Learning; Emulator; Surrogate Model; Response Surface Model; Approximation Model; Metamodeling; Model Composition; Regularization; Robustness; Hyperparameter Optimization; Mathematics and Statistics;

    Abstract : The aim of this thesis is to establish whether a neural network (NN) can be used for emulation of simulated global crop production - retrieved from the computationally demanding dynamic global vegetation model (DGVM) Lund-Potsdam-Jena General Ecosystem Simulator (LPJ-GUESS). It has been devoted to elaboration with various types of neural network architectures: Branched NNs capable of processing inputs of mixed data types; Convolutional Neural Network (CNN) architectures able to perform automated temporal feature extraction of the given weather time series; simpler fully connected (FC) structures as well as Multitask NNs. READ MORE

  3. 22. Climate change effects on the sub-Saharan agriculture- a case study in Kenya on maize growth and adaptation options

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Alessia Signorelli; [2019]
    Keywords : physical geography; sub-saharan africa; agriculture; maize; climate change; Earth and Environmental Sciences;

    Abstract : Climate change is progressively advancing, and is affecting the entire globe, with some areas more vulnerable than others. Among them, the sub-Saharan Africa, with a very low adaptive capacity, mainly relies on one economic sector: agriculture. Due to its high climate-dependency, agriculture is at elevated risk. READ MORE

  4. 23. Coping with climate change : Social ecological resilience to climate change for smallholding farms in Portland, Jamaica. Analysing the implementation of the pineapple variety MD2.

    University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

    Author : Åsa Berglund; [2019]
    Keywords : Buffering capability; Social-ecological resilience; Climate change; Crop adaptation;

    Abstract : In Portland Jamaica, smallholding farmers are facing major challenges in terms of economic uncertainty and climate change. This study is analyzing a project which aims at increasing farmers ability to adapt to climate change. The objective of the project is to introduce the pineapple variety MD2 for smallholder farmers in Portland Jamaica. READ MORE

  5. 24. Farmers' perceptions of climate change : a quantitative study of Scanian farmers

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Johan Tejler; [2019]
    Keywords : farmers perceptions; climate change; questionnaires; IPA; adaptation; Scania;

    Abstract : In this thesis, farmers` perceptions of climate change have been examined. Questionnaires were sent to 400 cereal farmers in the southernmost county of Sweden, Scania, of whom 221 replied. READ MORE

  6. 25. Future yield performance of ZS265 and ZS263 maize varieties and information dissemination for adaptation to climate change : a case of the Zimbabwean maize cropping system

    University essay from SLU/Dept. of People and Society

    Author : Vimbai Ruvengo; [2017]
    Keywords : APSIM; extension worker; drought tolerant; socio-ecological; AGRITEX; resilience;

    Abstract : In an effort to design a sustainable maize cropping system in Zimbabwe, attain food security and build resilience against climate change, achievements in crop breeding are evident by the introduction of Drought Tolerant (DT) maize varieties. The study aims to analyze the impact of climate change on DT maize varieties that are characterized to be drought tolerant and yield productive under future climate conditions. READ MORE