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>From: "Ing. M.C. Plentinger, AB-DLO" <[log in to unmask]>
>Subject: CAMASE_NEWS No. 10, June 1996
>To: Multiple recipients of list CAMASE-L <[log in to unmask]>
>
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
> N E W S L E T T E R
>
> O F
>
> A G R O - E C O S Y S T E M S
>
> M O D E L L I N G
>
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
> Published by AB-DLO June 1996, No.10
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
> \==================================================================\
> \ \
> \ CONTENTS \
> \ \
> \ REGISTER OF AGRO-ECOSYSTEMS MODELS \
> \ \
> \ ANNOUNCEMENTS \
> \ Plant morphogenesis & activities of \
> \ organisms on plants on WWW \
> \ Join us on AGROMET-L \
> \ \
> \ FORTHCOMING MEETINGS \
> \ European Society for Agronomy, ESA 4th Congress \
> \ 1996 International Meeting of the American Society of \
> \ Agricultural Engineers \
> \ Modelling water flow and solute transport in the \
> \ soil-water-plant-atmosphere system \
> \ Wind Erosion: An International Symposium/Workshop \
> \ Workshop "Modern Problems in Agro-ecosystem Modeling" \
> \ \
> \ NEW BOOKS \
> \ 8 new articles, books, and PhD thesis \
> \ \
> \ THE MARKET PLACE, WITH: \
> \ Theoretical and practical testing of the \
> \ CROPSYST crop growth model \
> \ PhD projects \
> \==================================================================\
>
> ====================================================================
> EDITORIAL
>
> This is already the tenth issue of the Newsletter. These is
> never a shortage of information and news. But do not hesitate
> to send us suggestions of things you would like all included.
>
> Frits Penning de Vries,
> Marja Plentinger
> ====================================================================
>
> * * *
>
> REGISTER OF AGRO-ECOSYSTEMS MODELS
>
> k e y w o r d s:
> m o d e l s
> m o d u l e s
> d a t a b a s e s
>
> On the World Wide Web with URL: http://www.co.dlo.nl/camase
> CAMASE keeps a database of model descriptions from all over
> the world.
>
> We expanded the database last week, and will update all
> entries later this year.
>
> If your model is not yet there: you are most welcome to join us.
>
>
> * * *
>
> ANNOUNCEMENTS
>
> k e y w o r d s:
> p l a n t m o r p h o g e n e s i s
> o r g a n i s m s o n p l a n t s
> a g r o m e t e o r o l o g y
> a g r o c l i m a t o l o g y
>
>
> * PLANT MORPHOGENESIS & ACTIVITIES OF ORGANISMS ON PLANTS ON WWW
> Programs for acquiring and processing 3-D information on plant
> morphogenesis and activities of organisms on plants, as well
> as programs for handling "plant map" data on topological
> structure of plants, will be available shortly at:
>
> http://www.ctpm.uq.oz.au/Programs/InsectPlant.html
>
> http://www.cpsc.ucalgary.ca/projects/bmv/vlab/index.html
>
> Contact
> Dr. P.M. Room
> Cooperative Research Centre for Tropical Pest Management,
> CSIRO Division of Entomology, P.O.Box 3, Indooroopilly Q4068,
> Australia.
> Telephone: +617.3214.2700
> Telefax: +617.3214.2885
> Internet: [log in to unmask]
>
> * JOIN US ON AGROMET-L
> This is to announce the a new WMO/FAO sponsored discussion
> list on agrometeorology and agroclimatology.
>
> Users can subscribe to the list by sending an e-mail to
>
> [log in to unmask],
>
> leaving the subject blank, and entering the line below in the
> body of the message:
>
> subscribe AGROMET-L
>
> The welcome message will provide more details about the list.
>
>
> * * *
>
> FORTHCOMING MEETINGS
>
> * EUROPEAN SOCIETY FOR AGRONOMY, ESA 4TH CONGRESS
> European Society for Agronomy
> ESA 4th Congress 7 - 11 July 1996
> Veldhoven - Wageningen, The Netherlands
>
> The fourth Congress of the European Society for Agronomy (ESA)
> will be held from 7-11 July 1996 in the Congress centre
> Koningshof in Veldhoven, The Netherlands.
>
> Sessions
> A General Plenary Session will address:
> Land use, natural resources and agricultural production in an
> expanding Europe.
>
> Thereafter three main themes will be introduced in a plenary
> session, and elaborated in parallel oral and poster sessions:
> - Agro-ecological studies and climate change
> - Integrated and ecological agriculture
> - Dynamics of nutrients and organic matter
> A productive mix with subjects channelled through the existing
> Scientific Divisions of ESA is planned.
>
> You will find more information on World Wide Web:
> http://www.ab.dlo.nl/AB/ESAgro/
>
> Organizing secretariat
> If you are interested in the Congress or its theme, please
> contact the organizing secretariat:
> Kongresservice Brabant
> P.O.Box 140
> NL-5500 AC Veldhoven
> The Netherlands.
> Telephone: +31.40.2547171
> Telefax: +31.40.2545515
> Internet: [log in to unmask]
>
> * 1996 INTERNATIONAL MEETING OF THE AMERICAN SOCIETY OF
> AGRICULTURAL ENGINEERS
> The 1996 International ASAE meeting will be held on July
> 14-18, 1996 in Phoenix, Arizona.
>
> Contact
> David Bosch
> USDA-ARS
> Southeast Watershed Research Laboratory
> P.O.Box 946
> Tifton
> Georgia 31793
> United States.
> Telephone: +1.912.386.3515
> Telefax: +1.912.386.7294
> Internet: [log in to unmask]
>
> * MODELLING WATER FLOW AND SOLUTE TRANSPORT IN THE
> SOIL-WATER-PLANT-ATMOSPHERE SYSTEM
> International Postgraduate Training Course 'Modelling water
> flow and solute transport in the soil-water-plant-atmosphere
> system'.
> Wageningen, 18-23 November 1996
>
> The course is organized by the International Training Centre
> (PHLO), Wageningen Agricultural University in cooperation with
> the Department of Water Resources of Wageningen Agricultural
> University and the DLO Winand Staring Centre in Wageningen.
>
> Information
> Further information can be obtained from:
> Wageningen Agricultural University
> International Training Centre (PHLO)
> P.O.Box 8130
> 6700 EW Wageningen
> The Netherlands.
> Telephone: +31.317.484092 / 484093
> Telefax: +31.317.426547
> Internet: [log in to unmask]
>
> * WIND EROSION: AN INTERNATIONAL SYMPOSIUM/WORKSHOP
> Commemorating the 50th anniversary of the USDA's Wind Erosion
> Research at Kansas State University
> Manhattan, Kansas, USA
> 3-5 June 1997
>
> Background
> This symposium is held in commemoration of the 50th
> anniversary of the USDA's Wind Erosion Research at Kansas
> State University. The purpose is to bring together leading
> scientists, conservationists, and policy makers to: identify
> the present and future wind erosion threat to sustainability;
> summarize current understanding of wind erosion processes,
> prediction, and control; identify societal needs and develop
> strategies for sustaining agriculture, protecting the
> environment, and conserving the natural resource against the
> ravages of wind erosion.
>
> Program
> Scientists, engineers and conservationists are invited to
> present papers and/or attend sessions related to the
> occurrence, measurement, and prediction and control of wind
> erosion and related processes and consequences. Plenary,
> concurrent, and poster sessions are planned.
> Keynote addresses will feature various aspects of wind
> erosion.
>
> Additional information, (e-mail preferred)
> USDA-ARS, NPA, Wind Erosion Research Unit, Throckmorton Hall,
> Kansas State University, Manhattan, KS 66506 United States.
> Telephone: +1.913.532 6528
> Telefax: +1.913.532 6495
> Internet: [log in to unmask]
> World Wide Web URL: http://www.weru.ksu.edu/
>
> * WORKSHOP "MODERN PROBLEMS IN AGRO-ECOSYSTEM MODELING"
> Laboratory of Agro-ecosystem Simulation
> Agrophysical Research Institute
> June 21-26, 1997
> St.-Petersburg, Russia
>
> In 1997 will be fulfilled the 30th anniversary of the
> Laboratory of Agro-ecosystem Simulation, Agrophysical Research
> Institute, St.-Petersburg. During the last two decades the
> Laboratory deals with the development of mathematical models
> in agriculture and agro-ecology as well as the theoretical
> investigation of related phenomena in ecology, physics and
> biology. The Laboratory staff plans to organize the Jubilee
> International Workshop: "The Modern Problems in Agro-ecosystem
> Modeling". The Workshop will be held at the end of June, 1997
> in Agrophysical Research Institute, St.-Petersburg, Russia.
>
> Areas of interest
> - New approaches to mathematical description of processes
> taking place in the soil, atmosphere and plant canopy.
> - Modern tendencies and non-traditional applications of
> ecosystem simulation models (Ecological Monitoring, Climate
> Change Impact onto Agro-ecosystems, Energy Crops, Agriculture
> on Contaminated Areas, Sustainable Agriculture etc.).
> - The competition of the models on the base of previously
> adjusted set of experimental data is planned.
>
> << The end of June is the best time in the beautiful city
> St.-Petersburg. It is the time of famous "White Nights". The
> visit to St.-Petersburg at this period gives magic
> impressions. >>
>
> For more details contact
> Prof. R.A. Poluektov
> Agrophysical Research Institute
> 14 Grazhdansky prospect
> 195220 St.-Petersburg
> Russia.
> Telephone: +7.812.534 4640
> Telefax: +7.812.535 5220
> Internet: [log in to unmask]
>
>
> * * *
>
> NEW BOOKS
>
> * Veldkamp, A. & L.O. Fresco, 1996. CLUE: a conceptual model
> to study the Conversion of Land Use and its Effects.
> Ecological modelling 85: 253-270
>
> Abstract
> A dynamic model to simulate Conversion of Land Use and its
> Effects (CLUE) is presented. For an imaginary region, CLUE
> simulates land use conversion and change in space and time as
> a result of interacting biophysical and human drivers. Within
> CLUE regional land use changes only if biophysical and human
> demands cannot be met by existing land use. After a regional
> assessment of land use needs, the final land use decisions are
> made on a local grid level. Important biophysical drivers are
> local biophysical suitability and their fluctuations, land use
> history, spatial distribution of infrastructure and land use,
> and the occurrence of pests and diseases. Important human land
> use drivers in CLUE are population size and density, regional
> and international technology level, level of affluence, target
> markets for products, economical conditions, attitudes and
> values, and the applied land use strategy. Initial CLUE
> simulation suggest that the integrated land use approach of
> CLUE can make a more realistic contribution to predictions of
> future land cover than currently used biophysical equilibrium
> approaches.
>
> Contact
> A. Veldkamp
> Wageningen Agricultural University
> Dept. Soil Science and Geology
> P.O.Box 37
> 6700 AA Wageningen
> The Netherlands.
> Telephone: +31.317.484145 / 484410
> Telefax: +31.317.482419
>
> Prof.dr.ir. L.O. Fresco
> Wageningen Agricultural University
> Dept. Agronomy
> P.O.Box 341
> 6700 AH Wageningen
> The Netherlands.
> Telephone: +31.317.483040
> Telefax: +31.317.484575
> Internet: [log in to unmask]
>
> * Ven, G.W.J. van de, 1996. A mathematical approach to
> comparing environmental and economic goals in dairy farming on
> sandy soils in the Netherlands. PhD Thesis, Wageningen
> Agricultural University, The Netherlands. 240 pp.
> ISBN: 90-5485-489-8
>
> Abstract
> A Dairy Farming Model was developed to screen the potentials
> for development of dairy farming on sandy soils in the
> Netherlands with respect to environmental, agro-technical and
> economic demands. The Dairy Farming Model consists of
> technical coefficient generators (TCG models) and an
> interactive multiple goal linear programming model (IMGLP
> model). The TCG models have been used to quantify input-output
> coefficients for a wide range of production techniques for
> grass, maize, fodder beet and milk. The results of the TCG
> models have been used in the IMGLP model, that optimizes the
> set of production techniques with respect to the goals
> defined.
> The model has been applied to a fictitious region with sandy
> soils. The analysis shows that dairy farming can meet both
> economic and environmental goals, as set by the government for
> the year 2000. However, this requires a reduction in labour
> income. Many different dairy farming systems are possible. A
> few general characteristics are: low N application on grazed
> grassland, a large proportion of the animals housed in
> low-emission stables and a substantial part of the
> concentrates produces in the region itself.
> Application of the Dairy Farming Model to the situation at the
> experimental dairy farm 'De Marke' has shown that the model is
> suited for exploring the opportunities for the development of
> dairy farming at a specific location, provided it can be
> initialized for that situation. Initial farm lay-out and
> measures taken at 'De Marke' have been evaluated.
> Additional keywords: grassland, maize, fodder beet,
> environment, economics, landscape, nitrogen, phosphorus,
> modelling, linear programming
>
> Contact
> Dr. G.W.J. van de Ven
> Research Institute for Agrobiology and Soil Fertility (AB-DLO)
> P.O.Box 14
> 6700 AA Wageningen
> The Netherlands.
> Telephone: +31.317.475939
> Telefax: +31.317.423110
> Internet: [log in to unmask]
>
> * Bouma, J., A. Kuyvenhoven, B.A.M. Bouman, J.C. Luyten & H.G.
> Zandstra (Eds.), 1995. Eco-regional approaches for sustainable
> land use and food production. Proceedings of a symposium on
> eco-regional approaches in agricultural research, 12-16
> December 1994, ISNAR, The Hague. Systems approaches for
> sustainable agricultural development, v. 4. Kluwer Academic
> Publishers in cooperation with International Potato Center
> (CIP). 505 pp.
> ISBN: 0-7923-3608-9 (hardback).
>
> Abstract
> In the coming decades the world will need to more than double
> its food and feed production, almost all of the increase being
> needed in developing countries. This has socio-economic and
> biophysical implications. Traditional component and commodity
> research addresses overly narrow issues at too small a scale.
> Rural development needs an eco-regional approach that
> integrates biophysical and socio-economic work on cropping
> systems, livestock, the environment, and natural resources.
> This book contains the papers, response papers and discussion
> report of a five-day seminar on eco-regional approaches. It
> assesses the state of the art of systems approaches applied to
> eco-regional problems, presenting and discussing a number of
> case studies. Future research needs are discussed, as well as
> ways to improve collaboration between research institutes.
> The seminar on which the book is based was organised on behalf
> of the Directorate General for International Cooperation of
> the Netherlands Ministry of Foreign Affairs by the Research
> Institute for Agrobiology and Soil Fertility (AB-DLO), the
> Wageningen Agricultural University (WAU), and the
> International Potato Center (CIP). It was held at the
> International Service for National Agricultural Research
> (ISNAR), and was attended by participants from all CGIAR
> centres, among others.
>
> Sold and distributed
> In the U.S.A. and Canada by:
> Kluwer Academic Publishers, 101 Philip Drive, Norwell, MA
> 02061, United States.
> In all other countries, sold and distributed by Kluwer
> Academic Publishers Group,
> P.O.Box 322, 3300 AH Dordrecht, The Netherlands.
>
> * Bouman, B.A.M., March 1996. Remote sensing subroutines in
> crop growth simulation models. Quantitative Approaches in
> Systems Analysis No. 3. DLO Research Institute for Agrobiology
> and Soil Fertility & The C.T. de Wit Graduate School for
> Production Ecology, The Netherlands. 39 pp.
> ISBN 90-73384-40-0
> NUGI 835
>
> New issue Quantitative Approaches in Systems Analysis
> Recently, the third issue in the series Quantitative
> Approaches in Systems Analysis (QUASA) appeared: Remote
> sensing subroutines in crop growth simulation models. This
> report is meant for researchers that study (optical and radar)
> remote sensing of agricultural crops for purpose such as
> classification, growth monitoring and yield prediction. The
> report describes the implementation of optical and radar
> remote sensing models as Fortran subroutines, and their
> linkage with crop growth simulation models that are written in
> the Fortran Simulation Environment (FSE), version 2.1 (see
> first issue of QUASA: The FSE system for crop simulation;
> D.W.G. van Kraalingen). The optical remote sensing routines
> are based on the models EXTRAD and CLAIR, and on empirical
> relationships between Leaf Area Index (LAI) and the Vegetation
> Index WDVI. The radar remote sensing routines are based on the
> one- and two-layer Cloud model. The remote sensing routines
> are incorporated in so-called 'interfaces', subroutines that
> can be called from crop growth models and that take care of
> computations on variables that are needed in the remote
> sensing routines. The interfaces are also written in FSE 2.1,
> and have been implemented in FSE-SUCROS models for sugar beet,
> wheat and potato.
>
> The report, and the described software, are available from:
> B.A.M. Bouman
> Research Institute for Agrobiology and Soil Fertility (AB-DLO)
> P.O.Box 14
> 6700 AA Wageningen
> The Netherlands.
> Telephone: +31.317.475972
> Telefax: +31.317.423110
> Internet: [log in to unmask]
> Quantitative Approaches in Systems Analysis are issued by the
> DLO Research Institute for Agrobiology and Soil Fertility
> (AB-DLO) and The C.T. de Wit Graduate School for Production
> Ecology (PE).
>
> The address for ordering other copies of this series is:
> H.E. de Ruiter
> Wageningen Agricultural University
> Department of Theoretical Production Ecology
> P.O.Box 430
> 6700 AK Wageningen
> The Netherlands.
> Internet: [log in to unmask]
>
> * Maracchi, G., L. Fibbi & M. Bindi, 1996. A guide to data and
> software sources for applied climatology on Internet. European
> School of Climatology and Natural Hazards 'A course on climate
> change impact on Agriculture and Forestry'. Volterra, Pisa,
> Italy. 16-24 March 1996. 81 pp.
>
> Contents
> This manual attempts to provide essential information at a
> technical level suitable for those who start to work on
> different applications of Climatology including: data sources,
> data processing, data representations, etc. For this purpose a
> research on Internet has been performed to look for
> information on the main available climatic data banks and
> software packages. For each topic a brief description of its
> characteristics and Internet address of the institutions and
> people who may be contacted are provided. Further information
> and demos, however, are available at Internet addresses
> reported for each topic and in a companion guide "Researching
> Meteo Data for Agrometeorology on the Internet" printed within
> of COST actions 711-77-79.
> The work is organised into 4 sections. The first section
> summarises the wide range of sources available for
> meteorological data. Other sections provide a general overview
> of the main software packages available on the market for data
> organisation, data processing, spatial and cartographic
> representation and other climatological applications.
>
> Contact
> Prof. G. Maracchi
> I.A.T.A. - C.N.R.
> Institute of Agrometeorology and Environmental Analysis for
> Agriculture
> Piazzale delle Cascine 18
> I-50144 Firenze, Italy.
> Telephone: +39.55.354895/7
> Telefax: +39.55.350833/332472
> Internet: [log in to unmask]
>
> * Wopereis, M.C.S., B.A.M. Bouman, T.P. Tuong, H.F.M. ten
> Berge & M.J. Kropff, February 1996. ORYZA_W: rice growth model
> for irrigated and rainfed environments. Wageningen:
> DLO-Research Institute for Agrobiology and Soil Fertility;
> Wageningen: WAU-Department of Theoretical Production Ecology;
> Los Banos: International Rice Research Institute. SARP
> Research Proceedings. 159 pp.
> ISBN: 90-73384-39-7
> NUGI: 835
>
> Preface
> This volume of the SARP Research Proceedings presents ORYZA_W
> version 3.0, a simulation model for irrigated and rainfed rice
> production. The above-ground crop growth part of ORYZA_W is
> based on ORYZA1, version 1.3, described in another volume of
> this series.
> ORYZA_W provides the user with a choice of three
> one-dimensional soil-water balance modules: PADDY, SAHEL and
> LOWBAL. SAHEL and LOWBAL are already familiar to researchers
> in the SARP network. Use of these two modules is, however,
> limited to specific environments. SAHEL was developed for
> freely draining 'upland' rice soils with a deep groundwater
> table and LOWBAL for 'lowland' rice soils with a hard plow
> sole (impenetrable for roots) and a deep groundwater tale.
> Because of their frequent use in SARP, SAHEL and LOWBAL are
> explained in detail in this volume. PADDY was especially
> developed to provide the user with a universal soil-water
> balance module. It can handle any soil condition (puddled /
> non-puddled, free draining / impeded drainage, cracking /
> non-cracking) in irrigated and rainfed rice growing
> environments, and can also be used in rice / non-rice
> rotations. All soil-water balance modules presented here work
> with time steps of 1 day. We hope that ORYZA_W will prove to
> be of value for your research.
>
> Further information
> Dr.ir. H.F.M. ten Berge
> Research Institute for Agrobiology and Soil Fertility (AB-DLO)
> P.O.Box 14
> 6700 AA Wageningen
> The Netherlands.
> Telephone: +31.317.475951 / 475953
> Telefax: +31.317.423110
> Internet: [log in to unmask]
>
> * Habekotte, B., 1996. Winter oilseed rape: analysis of yield
> formation and crop type design for higher yield potential. PhD
> Thesis, Wageningen Agricultural University, The Netherlands.
> 156 pp.
> ISBN: 90-5485-514-2
>
> Abstract
> The study described in this thesis focuses on quantifying the
> seed yield formation of winter oilseed rape and on identifying
> crop traits and combinations of traits for increasing seed
> potential in North-West Europe, by combining experimental
> research with crop growth simulation.
> The model was used to identify options for increasing seed
> yield potential. Comparison with the higher-yielding reference
> crop, winter wheat, showed determining components. Crop traits
> and combinations of traits were identified to obtain higher
> values in these components. Finally, high-yielding crop types
> were designed and tested in simulations for various locations
> in North-West Europe and showed good prospects for increasing
> seed yield potential.
>
> Contact
> Dr. B. Habekotte
> Research Institute for Agrobiology and Soil Fertility (AB-DLO)
> P.O.Box 14
> 6700 AA Wageningen
> The Netherlands.
> Telefax: +31.317.423110
>
> * Meinke, H., 1996. Improving wheat simulation capabilities in
> Australia from a cropping systems perspective. Thesis Landbouw
> Universiteit Wageningen. - With ref. - With summary in Dutch.
> 270 pp.
> ISBN: 90-5485-511-8
>
> Abstract
> A methodology to objectively compare model components within a
> cropping systems model is introduced. It allows effective and
> efficient comparisons of modelling approaches with the help of
> a versatile cropping systems shell. This highly modular
> simulation environment allows inclusion of desired modules at
> the click of a button. The methodology is applied to some key
> wheat models currently in use for systems analysis and
> decision support in Australia. Thus, comprehensive data sets
> for model testing were required. One such data set, comprising
> various levels of applied nitrogen and water, is analysed
> using a crop physiological framework that provides all
> necessary parameter values for inclusion into a predictive
> wheat model of intermediate complexity.
> Among others, it will be applied in Australia to investigate
> options for manipulating either the crop or the cropping
> system as an aid to pursuing improved sustainable farming
> practices.
>
> Contact
> Holger Meinke
> DPI/CSIRO
> Agricultural Production Systems Research Unit
> P.O.Box 102
> Toowoomba
> QLD 4350 Australia.
> Telephone: +61.76.314378
> Telefax: +61.76.332678
> Internet: [log in to unmask]
>
>
> * * *
>
> THE MARKET PLACE
>
> Do you feel that the research of your team is insufficiently
> known? In this section, we welcome a short description of your
> systems research group. We will also welcome offers of
> specific expertise or data, and calls for the same.
>
> * THEORETICAL AND PRACTICAL TESTING OF THE CROPSYST CROP GROWTH
> MODEL
> CROPSYST (Stockle and Nelson, 1994, 1996) is designated as an
> user-friendly, conceptually simple model and as an analytical
> tool to study the effect of cropping system management on
> productivity and environment.
> The findings of 4 months spent at DLO-Research Institute for
> Agrobiology and Soil Fertility of Wageningen (The Netherlands)
> to test CROPSYST are reported below.
> With respect to crop growth testing (winter wheat), CROPSYST
> showed a high skill in predicting flowering date, a quite
> general inability to simulate green leaf area index, a general
> tendency in underestimating above ground biomass (less
> accentuated at the end of the growing season). With respect to
> technical testing (system and code) an incomplete level of
> documentation (unupdated manual and undocumented parameters),
> an incomplete ability in preventing strange behaviour under
> limit and impossible conditions, large discontinuities in many
> parameters, lack of mass and energy balances (except for
> nitrogen transport) were pointed out. CROPSYST interface
> proved to be transparent and directly accessible to the model
> users. Therefore, thanks to this model the analysis of the
> experiments was performed easily with a depth and accuracy
> following the evolution of the crop under the influence of
> variable and fluctuating environmental conditions. This is due
> to the fact that CROPSYST requires input parameters easily
> available through the normal agronomic practice. Such a simple
> approach and the transparent interface play an important role
> in ensuring that a great number of potential model users can
> be reached, increasing the impact of system analysis to
> agriculture. It is hoped that this program will not remain
> inside a closed group of people, as commonly happens.
>
> Dr. Gianni Bellocchi
>
> Dipartimento di Agronomia e Gestione dell'Agroecosistema
> via S. Michele degli Scalzi, 2
> 56124 Pisa
> Italy.
> Telephone: +39.50.599111
> Telefax: +39.50.540633
> Internet:[log in to unmask]
>
> * PHD PROJECTS
> In this section we would like to make some room for PhD
> project topics of students around the world. Just send us your
> name, the PhD project topic, the supervisor, and Internet
> address. In future the list of PhD topics will be put on the
> World Wide Web pages of CAMASE.
>
> The topic was suggested by mr. Mohammed Bannayan Avval, who
> send us the list the following people at his office at the
> University of Nottingham.
>
> - Students name: Mr. J.P. Absalom.
> PhD topic: Radiocasmium fixation dynamics in upland soils;
> measurement and modelling.
> Supervisor: Dr. N. Crout, and dr. S.D. Young.
> Finish date: September, 1995.
> Internet: [log in to unmask]
>
> - Students name: Mr. M. Bannayan Avval.
> PhD topic: Winter wheat yield, modelling and forecasting.
> Supervisor: Dr. N. Crout
> Finish date: April 1998.
> Internet: [log in to unmask]
>
> - Students name: Mr. A. Guilett.
> PhD topic: Predictive information on plant development in
> relation to yield and quality.
> Supervisor: Dr. N. Crout, and dr. R. Sylvester-Bradley.
> Finish date: June, 1996.
> Internet: [log in to unmask]
>
> - Students name: Mr. J. Turnpenny.
> PhD topic: Impact of climate change on the energy balance of
> livestock.
> Supervisor: Dr. J. Clark.
> Finish date: October, 1997.
> Internet: [log in to unmask]
>
> ====================================================================
> CAMASE: A CONCERTED ACTION FOR THE DEVELOPMENT AND TESTING
> OF QUANTITATIVE METHODS FOR RESEARCH 0N AGRICULTURAL SYSTEMS
> AND THE ENVIRONMENT.
>
> CAMASE is financially supported by the European Community
> Specific Programme for Research, Technological Development and
> Demonstration in the Field of Agriculture and Agro-industry,
> including Fisheries.
>
> The objectives of CAMASE are to advance quantitative
> research on agricultural systems and their environment in the
> EU-countries, by improving systems research in participating
> institutes through exchange and standardization of concepts,
> approaches, knowledge, computer programs and data.
> CAMASE relates to a small network of research groups, and a
> broad group of scientists receiving information. The network
> consists of scientists from five groups in Europe: Denmark
> (Royal Veterinary and Agricultural University, Copenhagen),
> France (Institut National de la Recherche Agronomique,
> Toulouse), Spain (Cordoba University, Cordoba), Scotland
> (Institute of Ecology and Resource Management, Edinburgh) and
> The Netherlands (AB-DLO, TPE-WAU and SC-DLO, Wageningen).
>
> With CAMASE_NEWS, we aim to improve communication among
> scientists working in agro-ecosystem modelling and interested
> in better access to appropriate models, data, and related
> tools, instruction materials. CAMASE-core groups and others
> can contribute spontaneously or will be invited to contribute.
> Responsibility for the opinions expressed rests with the
> authors.
>
> CAMASE_NEWS will appear four times per year. Please submit
> news items for CAMASE_NEWS and requests for new subscriptions
> to:
>
> F.W.T. Penning de Vries/M.C. Plentinger
> DLO Research Institute for Agrobiology and Soil Fertility
> (AB-DLO)
> P.O.Box 14
> 6700 AA WAGENINGEN
> The Netherlands
> Telephone: +31.317.475961
> Telefax: +31.317.423110
> Internet: [log in to unmask]
>
> After an e-mail request for subscription, you will receive
> a form to give your address, which is necessary for postal
> mailings.
> ====================================================================
>
=======================================================================
Gerrit Hoogenboom
Associate Professor
Department of Biological and Agricultural Engineering
The University of Georgia
Griffin, Georgia 30223-1797, USA
Phone: 770-228-7216
FAX: 770-228-7218
E-mail: [log in to unmask]
=======================================================================
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