PPS-20306 Systems Analysis, Simulation and Systems Management

Vak

Studiepunten 6.00

Language of instruction:

English

Continuation courses:

The courses in the prepatory trajectories of PPS, BFS, CWE and HPC

Contents:

Systems approaches are widely used in studies of ecological systems for the purpose of increasing our understanding of ecosystems functioning and improving systems management. The application domain ranges from the (sub-)individual level to the (agro-)ecosystem level. Systems approaches represent a scientific concept in which the real world is divided into systems. Depending on the specific objective, these systems are analysed and captured in quantitative simulation models. Studying model behaviour in comparison to real world behaviour allows testing of hypotheses and increases knowledge.
This course introduces the student to the study of the behaviour of complex ecological systems. The course comprises three blocks:
1. systems dynamics;
2. simulation of simple systems;
3. integrating case studies.
In the block 'systems dynamics', concepts are introduced such as system, model, simulation, state, rate, feedback, time- coefficient, relational diagram, analysis of dimensions or units, numerical integration methods and discontinuities in integral contents.
'Simulation of simple systems' comprises exponential, logistic and paralogistic growth of a single population, interaction of two populations according to Lotka-Volterra, numerical dispersion during simulation of spatially distributed systems, crop growth and effects of pests.
The final block consists of integrating case studies where knowledge of the previous blocks is integrated and applied. The case studies will address system identification, model development, model evaluation and exploration of management options. Cases will be developed for themes from ecology, crop science and soil science.
The course is intended for 2nd or 3rd year university students, in particular for biologists, agro-ecologists, crop protectionists and soil scientists, but the way of thinking and the simulation techniques presented are applicable in many different fields of science.

Aims:

After successfully concluding this course:
1. you are able to apply elementary concepts such as feedback, time coefficient, relational diagram, analysis of units, and numerical integration methods, following the conventions of the systems approach;
2. you are able to analyse systems in terms of states, rates and driving variables;
3. you are able to understand and develop basic simulation models, and discuss their outcome;
4. you can explain applications of systems approaches in crop science, soil science and crop protection and their usefulness for evaluating options for improved systems management.

Activities:

1. lectures;
2. tutorials in which exercises are solved using paper and pencil and by means of a computer;
3. application of the subject matter in case studies elaborated in small groups;
4. presentations of case study results in workshops.

Examination:

Written, closed book exam with questions aimed at testing the gained insights and knowledge.

Literature:

A flyer containing basic information on the course will be available at the secretarial offices of Plant Production Systems and Biological Farming Systems. A reader will be available from the secretariat of the group at the Haarweg. The reader contains many exercises that enable the student to apply concepts and tools.