scholarly journals Novel methodology to evaluate and compare evapotranspiration algorithms in an agroecosystem model

2019 ◽  
Vol 119 ◽  
pp. 214-227 ◽  
Author(s):  
K.R. Thorp ◽  
G.W. Marek ◽  
K.C. DeJonge ◽  
S.R. Evett ◽  
R.J. Lascano
Keyword(s):  
Agroecosystem Model

scholarly journals Evaluation of a regional air-quality model with bidirectional NH<sub>3</sub> exchange coupled to an agroecosystem model

2013 ◽  
Vol 10 (3) ◽  
pp. 1635-1645 ◽  
Author(s):  
J. O. Bash ◽  
E. J. Cooter ◽  
R. L. Dennis ◽  
J. T. Walker ◽  
J. E. Pleim
Keyword(s):  
Air Quality ◽  
The United States ◽  
United States Department ◽  
Air Quality Model ◽  
Quality Model ◽  
Coupled Modeling ◽  
Surface Exchange ◽  
Agroecosystem Model ◽  
The Us ◽  
Bidirectional Exchange

Abstract. Atmospheric ammonia (NH3) is the primary atmospheric base and an important precursor for inorganic particulate matter and when deposited NH3 contributes to surface water eutrophication, soil acidification and decline in species biodiversity. Flux measurements indicate that the air–surface exchange of NH3 is bidirectional. However, the effects of bidirectional exchange, soil biogeochemistry and human activity are not parameterized in air quality models. The US Environmental Protection Agency's (EPA) Community Multiscale Air-Quality (CMAQ) model with bidirectional NH3 exchange has been coupled with the United States Department of Agriculture's (USDA) Environmental Policy Integrated Climate (EPIC) agroecosystem model. The coupled CMAQ-EPIC model relies on EPIC fertilization timing, rate and composition while CMAQ models the soil ammonium (NH4&amp;plus;) pool by conserving the ammonium mass due to fertilization, evasion, deposition, and nitrification processes. This mechanistically coupled modeling system reduced the biases and error in NHx (NH3 &amp;plus; NH4&amp;plus;) wet deposition and in ambient aerosol concentrations in an annual 2002 Continental US (CONUS) domain simulation when compared to a 2002 annual simulation of CMAQ without bidirectional exchange. Fertilizer emissions estimated in CMAQ 5.0 with bidirectional exchange exhibits markedly different seasonal dynamics than the US EPA's National Emissions Inventory (NEI), with lower emissions in the spring and fall and higher emissions in July.

Global sensitivity and uncertainty analysis of a dynamic agroecosystem model under different irrigation treatments

2012 ◽  
Vol 231 ◽  
pp. 113-125 ◽  
Author(s):  
Kendall C. DeJonge ◽  
James C. Ascough ◽  
Mehdi Ahmadi ◽  
Allan A. Andales ◽  
Mazdak Arabi
Keyword(s):  
Uncertainty Analysis ◽  
Global Sensitivity ◽  
Agroecosystem Model ◽  
Irrigation Treatments ◽  
Sensitivity And Uncertainty Analysis

A coffee agroecosystem model: I. Growth and development of the coffee plant

2011 ◽  
Vol 222 (19) ◽  
pp. 3626-3639 ◽  
Author(s):  
Daniel Rodríguez ◽  
José Ricardo Cure ◽  
José Miguel Cotes ◽  
Andrew Paul Gutierrez ◽  
Fernando Cantor
Keyword(s):  
Growth And Development ◽  
Coffee Plant ◽  
Agroecosystem Model

scholarly journals A coffee agroecosystem model: III. Parasitoids of the coffee berry borer ( Hypothenemus hampei )

2017 ◽  
Vol 363 ◽  
pp. 96-110 ◽  
Author(s):  
Daniel Rodríguez ◽  
José Ricardo Cure ◽  
Andrew Paul Gutierrez ◽  
José Miguel Cotes
Keyword(s):  
Hypothenemus Hampei ◽  
Coffee Berry ◽  
Coffee Berry Borer ◽  
Agroecosystem Model

Documenting the pesticide processes module of the ARS RZWQM agroecosystem model

2004 ◽  
Vol 60 (3) ◽  
pp. 222-239 ◽  
Author(s):  
R Don Wauchope ◽  
Kenneth W Rojas ◽  
Lajpat R Ahuja ◽  
Qingli Ma ◽  
Robert W Malone ◽  
...  
Keyword(s):  
Agroecosystem Model

A coffee agroecosystem model: II. Dynamics of coffee berry borer

2013 ◽  
Vol 248 ◽  
pp. 203-214 ◽  
Author(s):  
Daniel Rodríguez ◽  
José Ricardo Cure ◽  
Andrew Paul Gutierrez ◽  
José Miguel Cotes ◽  
Fernando Cantor
Keyword(s):  
Coffee Berry ◽  
Coffee Berry Borer ◽  
Agroecosystem Model
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