Summary: Land & Forage Management
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Land management introduction
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Which 7 factors define a landschape?
- tectonic movements/vulcanism/parent material
- distance to sea/equator/water in general (climate,sea,river)
- climate
- land and soil type
- relief, topography
- plant succession
- human impact -
Which systems are the Dutch and FAO systems?
World Reference Base for Soil Resources (WRB)
Unified soil classification System (USCS)
USDA (National) -
What is the purpose of the different systems?
- Summary of information
- comparison and communication aboutsoils
- evaluation ofsoils ; landsuitability
- for agriculture
- for specific cropping systems
- for construction -
What are 5 characteristics of the agricultural soils in NL?
- Large variety of soil types
- animal husbandry across the country
- forage necessary for horses and ruminants
- cultivation for economic reasons
- increased focus on sustainable production -
les 2 physical properties
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Where are soils crucial for?
For the carbon (c) cycle -
When is a soil climate proof?
- if it maintains more moisture
- if the soil structure and fertility is improved
- if it is ecologically sound and economically feasible -
les 3 soil physics & biology
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What are characteristics of a sandy soil?
-poor (low nutrient state)
-permeable (doorlaatbaar)
-dusty
-low moisture holding
-not easy to work in -
What are characterisitcs of a loamy (silty) soil?
- low permeability
-Quite fertile
-Sensitive for erosion
- sometimes very slippery -
What are characterisitcs of a clay soil?
- Rich (high nutrient status)
- difficult to work on
-often slippery
-coarse structure -
What are characteristics of a peat (veen) soil?
- very wet
- mostly good fertility (due to organic matter)
- only grass is possible
- low bearing capacity
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