نتایج جستجو برای: crop simulation model

تعداد نتایج: 2511500  

2002
Ching-Cheng Chang

This paper intends to estimate the potential impact of climate change on Taiwan’s agricultural sector. Yield response regression models are used to investigate the climate change’s impact on 60 crops. A price-endogenous mathematical programming model is then used to simulate the welfare impacts of yield changes under various climate change scenarios. Results suggest that both warming and climat...

2007
S. HANSEN

A dynamic simulation model for the soil plant system is described. The model includes a number of main modules viz. a water model, a soil temperature model, a soil nitrogen model including a submodel for soil organic matter dynamics, and a crop model including a submodel for nitrogen uptake. The soil part of the model has a one dimensional vertical structure. The soil profile is divided into la...

2013
E. Playán J. Cavero A. Martínez-Cob J. M. Faci

The development of a coupled crop model (Ador-Crop) and solid set sprinkler irrigation model (Ador-Sprinkler) is reported in this work. The crop model incorporates many of the features developed in the well-known CropWat model. Improvements include the use of thermal time and the input of daily ET0. The solid set sprinkler model applies ballistic theory to determine water distribution resulting...

Journal: :Journal of experimental botany 2015
Julian Ramirez-Villegas James Watson Andrew J Challinor

Genotypic adaptation involves the incorporation of novel traits in crop varieties so as to enhance food productivity and stability and is expected to be one of the most important adaptation strategies to future climate change. Simulation modelling can provide the basis for evaluating the biophysical potential of crop traits for genotypic adaptation. This review focuses on the use of models for ...

Journal: :Remote Sensing 2018
Tri Setiyono Emma D. Quicho Luca Gatti Manuel Campos-Taberner Lorenzo Busetto Francesco Collivignarelli Francisco Javier García-Haro Mirco Boschetti Nasreen Islam Khan Francesco Holecz

Crop insurance is a viable solution to reduce the vulnerability of smallholder farmers to risks from pest and disease outbreaks, extreme weather events, and market shocks that threaten their household food and income security. In developing and emerging countries, the implementation of area yield-based insurance, the form of crop insurance preferred by clients and industry, is constrained by th...

Journal: :Journal of medical entomology 2008
Craig R Williams Petrina H Johnson Sharron A Long Luke P Rapley Scott A Ritchie

New approaches for control of the dengue vector Aedes aegypti (L.) are being developed, including the potential introduction of life-shortening symbiont bacteria into field populations and the release of transgenic strains with reduced vector competency. With these new approaches comes the need for rapid estimations of existing field population size. Here, we describe the use of simulation mode...

Journal: :Journal of the Royal Society, Interface 2010
Michael H Butterworth Mikhail A Semenov Andrew Barnes Dominic Moran Jonathan S West Bruce D L Fitt

Effects of climate change on productivity of agricultural crops in relation to diseases that attack them are difficult to predict because they are complex and nonlinear. To investigate these crop-disease-climate interactions, UKCIP02 scenarios predicting UK temperature and rainfall under high- and low-CO(2) emission scenarios for the 2020s and 2050s were combined with a crop-simulation model pr...

2003
Sheng-Feng Kuo Chen-Wuing Liu

A simulation and optimization model was developed and applied to an irrigated area in Delta, Utah to optimize the economic benefit, simulate the water demand, and search the related crop area percentages with specified water supply and planted area constraints. The user interface model begins with the weather generation submodel, which produces daily weather data, which is based on long-term mo...

2017
Izzadora K.S. Andrew Jonathan Storkey

With the increasing pressure on crop production from the evolution of herbicide resistance, farmers are increasingly adopting Integrated Weed Management (IWM) strategies to augment their weed control. These include measures to increase the competitiveness of the crop canopy such as increased sowing rate and the use of more competitive cultivars. While there are data on the relative impact of th...

Journal: :journal of hydraulic structures 2014
mina sadat seyedjavad mahmoud mashaal aliasghar montazar

measuring sensitivity of hydraulic structures is considered as an approach for evaluation of water projects performance, due to lower distribution efficiency in irrigation and drainage project schemes. sensitivity analysis approach for irrigation structures is one of flow analysis methods which are developed in recent years in order to measure the behavior of flow in hydraulic structures in an ...

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