UNIT 1 Flashcards
The natural world around us, the variety of different kinds of organisms… they exist in delicate balance.
Biodiversity
Six main uses of soil resource and land
- Biomass production
- Soil as a protective medium
- Soil as a biological habitat and gene reserve
- Soil as a basis for technical, industrial, and socio-economic human activities
- Source of geogenic energy
- Source of geogenic and cultural heritage
Soil and land use are divided into two groups
Ecological use
Anthropogenic use
Types of site-specific soil technologies
- Integrated Watershed Management
- Site-specific nutrient management
- Advances in soil testing services
- Geo-spatial soil mapping
- Soil management decision support systems
This has been accepted as one of the most rational approach in preventing deterioration of ecosystem, restoration of degraded lands, and improving overall productivity of rainfed areas and sustained use and conservation.
Integrated watershed management
This applies the concept of nutrient management to areas within a field that are known to require different management options from the field average. This concept can be applied to any field or any crop.
Site-specific nutrient management
The basis for scientifically sound decisions while addressing soil health issues. This helps improving the appropriate nutrient application across a field.
Advances in soil testing services
The use of GPS/GIS tools in specifically mapping the precise soil health conditions considering spatial and temporal variability.
Geo-spatial Soil mapping
Deals with the fundamental chemical properties of water itself, the chemical properties of other constituents that dissolve in water, and the countless chemical reactions that take place in water.
WATER CHEMISTRY
Gaseous state of water
100°C and 1.0 atmosphere pressure.
pH value of water
7.0 or neutral value
The goal of water resource management
Water security
seeks to harness the benefits of water by ensuring there is sufficient water of adequate quality for drinking water and sanitation services, food production, energy generation, inland water transport, and water-based recreational, as well as sustaining healthy water-dependent ecosystems and protecting the aesthetic and spiritual values of lakes, rivers, and estuaries.
Water Resource Management
How is water security achieved?
when water’s productive potential is leveraged and its destructive potential is managed.
This entails managing water-related risks, including floods, drought, and contamination.
Water Resource Management
