Question : Indicate the major biotic regions of the world and discuss the ecological aspects of the monsoon region.
(1994)
Answer : A biome includes all plants, animals and soils of all those areas of the world where all the biota have minimum common characteristics and all the areas of biome are characterized by more or less uniform environmental conditions. The biome or biotic region is in fact a large natural ecosystem.
Following major biotic regions can be identified on the basis of vegetational type and structure, climatic type, pedogenic regime and soil-moisture regimes:
Question : Social Forestry and Environmental Conservation.
(2007)
Answer : To serve many purposes e.g. timber, firewood, economy, environment, the term and practice of social forestry came into being. Social forestry is seen as an instrument of sustainable development and environmental conservation. Thisis due to its potential of resolving three basic issues of rural poor simultaneously. It has a capacity to provide food security, fuel security and livelihood security with eco-friendly approach to development thus leading to sustainable development. Social forestry has been maintained by ....
Question : Distribution of soils.
(2006)
Answer : The major divisions of soil are-Zonal, Intrazonal and Azonal.
Zonal Soil: These soils reflect climate and vegetation to a large degrees, hence they are formed on well-drained sites on non-extreme parent material.
Question : Soil Erosion and Conservation.
(2005)
Answer : Till the time a balance exists between the process of soil formation and soil erosion, there is no problem. When this balance is disturbed, the soil erosion becomes a menace. Indiscriminate felling of trees, careless overgrazing of pasture lands, Unscientific drainage operations and improper land use are some of the important causes which upset this balance. Soil erosion is a major problem in the world.
The two most active agents of soil erosion are wind and ....
Question : Weathering and soil formation.
(1997)
Answer : Weathering has been defined as the total of all processes acting at or near the earth's surface to cause physical disruption and chemical decomposition of rocks in situ. In other words, weathering is the process by which rocks are broken down and decomposed by the action of external agencies such as temperature change, rain, wind, plants, bacteria etc.
Rocks are disintegrated and decomposed and ultimately are broken down into smaller pieces due to the operation of ....
Question : Man and the Amazon Rain Forest.
(1996)
