Dr.ir. J. de Graaff

Update Persondata

• agricultural
• aspects
• conservation
• development
• economic
• evaluation
• monitoring
• social
• soil
• water
• watershed

Active as

Publications

(the most recent at the top)

Land-use changes in a small watershed in the Mediterranean landscape (SE Spain): environmental implications of a shift towards subtropical crops

Application of DSSAT crop models to generate alternative production activities under combined use of organic-inorganic nutrients in Rwanda

The development of soil and water conservation policies and practices in five selected countries from 1960 to 2010

Strategies and economics of farming systems with coffee in the Atlantic Rainforest Biome

Financial cost-benefit analysis of bench terraces in Rwanda

All publications..

Enhanced publications

(the most recent at the top)

Doctoral Thesis: Exploring farmers' perceptions of drought in Tanzania and Ethiopia

Current research

(the most recent research is at the top)
Supervisor	Development of strategies to improve public-private partnerships in natural resource management in Trinidad
Supervisor	Promising strategies to mitigate desertification: participatory appraisal, impact assessment and decision making.
Project leader	Promising strategies to mitigate desertification: participatory appraisal, impact assessment and decision making.
Supervisor	The effectiveness and efficiency of agricultural and environmental policies to combat desertification: a case study in Portugal.

Completed research projects

(the most recent research is at the top)
Supervisor	Farm level bio-economic modelling to analyse land productivity in Rwanda
Supervisor	Valuation of conservation scenarios for olive farming on sloping and mountainous land.
Supervisor	Exploring farmers' drought perception in Ethiopia and Tanzania; search for the missing link in prioritising actions for improved productivity.
Co-supervisor	The effectiveness of incentives for soil and water conservation.
Supervisor	Impact assessment of soil and water conservation in the West Usambra Highlands, Tanzania

All completed research..

Classification

A12000	Surfacewater and groundwater
A13000	Soil
A21000	Agriculture and horticulture
A52000	Trade and international commerce
C20000	Development studies
D15000	Earth sciences
D22400	Ecology