Classification of agro ecological zones
WHO classified agro-ecological zones?
The Food and Agriculture Organization (FAO) of the United Nations (2000b) classified the region into five different agroecological zones according to rainfall and the length of the growing season as follows: 1. Humid zone with the length of growing period ranging between 270 and 329 days in DR Congo; 2.
WHO classified agro-ecological zones in India?
The National Bureau of Soil Survey & Land Use Planning (NBSS&LUP) came up with twenty agro-ecological zones based on the growing period as an integrated criteria of effective rainfall, soil groups, delineated boundaries adjusted to district boundaries with a minimal number of regions.
What are the 4 ecological zones?
3.4 Characteristics of global Ecological Zones
- 1 Tropical domain. Mean temperature of all months over 18oC. …
- 2 Subtropical domain. At least 8 months above 10oC. …
- 3 Temperate domain. …
- 4 Boreal domain.
What are the three agro-ecological zones?
The resulting AEZ classifications for Africa have three dimensions: major climate zone (tropics or subtropics), moisture zones (water availability) and highland/lowland (warm or cool based on elevation).
How many agro-ecological zones does India have?
20 agro-ecological zones
India has a variety of landscapes and climate conditions and this is reflected in the development of different soils and types of vegetation. Based on 50 years of climate data and an up-to-date soil database, the country has been divided into 20 agro-ecological zones (AEZs).
How many agricultural zones are in India?
fifteen agricultural regions
For resource development, the country has been broadly divided into fifteen agricultural regions based on agroclimatic features, particularly soil type, climate including temperature and rainfall and its variation and water resources availability as under: Western Himalayan division.
How many ecological zones are there?
At least nine ecological zones are recognized (Schultz 2005). They occur in bands, which may be fragmented owing to the irregular configuration of the continents and oceans, from the poles to the equator.
What are agro-ecological zones PDF?
Agro-ecological zone is a land unit, carved out of climatic zone, correlated with landforms, climate and the length of growing period (LGP). LGP refers to the number of days available for crop growth with suitable conditions.
What are agro-ecological factors?
Soil for seed production should have optimum moisture, good texture and structure. Different vegetables have different soil requirements and in general, loams are the best. Clay soils in high rainfall area become sick and cause lack of aeration which affects seed quality.
What is ecological classification system?
Ecological land classifications are used to identify, describe, and map progressively smaller areas of land with increasingly uniform ecological features. The system uses associations of biotic and environmental factors, including climate, geology, topography, soils, hydrology, and vegetation.
What is the meaning of ecological zone?
An Ecological Zone (EZ) is defined as: “A zone or area with broad yet relatively homogeneous natural vegetation formations, similar (not necessarily identical) in physiognomy. Boundaries of the EZs approximately coincide with the map of Köppen-Trewartha climatic types, which was based on temperature and rainfall.
What is ecological zoning?
Introduction. Agro-ecological Zoning (AEZ) refers to the division of an area of lend into smaller units, which have similar characteristics related to land suitability, potential production and environmental impact.
Why is ecological classification important?
By describing, classifying and tracking terrestrial ecosystems, we are able to address a complex suite of processes and functions beyond that of individual species interactions, such as old-growth forests, productive soils, and coral reefs.
What are the land classification?
Land classification refers to land categories, reflecting quality classes, capability classes or grade, depending upon the characteristics of the land and/or its potential for agricultural use.
What are the 2 main structures of an ecosystem?
Two main components exist in an ecosystem: abiotic and biotic. The abiotic components of any ecosystem are the properties of the environment; the biotic components are the life forms that occupy a given ecosystem.
What are the ecological zones in Nigeria?
The ecological zones in Nigeria are based on Keay (1949), and are defined from South to North as follows: Mangrove Swamp and Coastal Vegetation, Freshwater Swamp Forest, Lowland Rain Forest, Derived Savanna, Guinea Savanna, Sudan Savanna, and Sahel Savanna.
What are the ecological zones in Kenya?
Table 1: Agro-ecological zones of Kenya
| Zone | Approximate Area (km2) | % Total |
|---|---|---|
| II. High Potential | 53,000 | 9.3 |
| III. Medium Potential | 53,000 | 9.3 |
| IV. Semi-Arid | 48,200 | 8.5 |
| V. Arid | 300,000 | 52.9 |