Notes and Study material for Exams
Biodiversity with its sustainable use. They are internationally recognized, nominated by national governments and remain under sovereign jurisdiction of the states where they are located”. In 1971, UNESCO launched a global programme to formalize the scientific interaction between man and his natural environment. This programme is called the Man and the Biosphere … Read more
Topological & Non-Topological Conservation Conservation – shape and structure of networks of interacting organisms in ecological systems In-situ conservation Protect whole ecosystem at all levels to protect threatened species (save entire forest to save tiger) Hot Spots – High endemism & high Species richness (in India – Western Ghats (Agasthyamalai hills, … Read more
Sustainable management of natural Resources Natural Resources are not unlimited and with the human Population increasing at a tremendous rate due to improvement in Health-care, the demand for all resources is increasing at an exponential rate. The management of natural resources requires a long-term perspective so that these will last for the generations … Read more
Soil fertility depleted, the rivers polluted and the forests destroyed. The Indian Scenario India constitutes 18 per cent of the world’s Population, 15 per cent of the live stock population and only 2 per cent of the geographic area, one per cent of the forest area and 0.5 per cent of pasture lands. … Read more
Forest- Types and Conservation of Forest and Forest Resources A forest is a complex ecosystem which is predominantly composed of trees, shrubs and is usually a closed canopy. Forests are storehouses of a large variety of life forms such as Plants, mammals, birds, insects and reptiles etc. Also the forests have abundant Microorganisms … Read more
Economic Botany The land and waters of the earth sustain a vast assemblage of Plants upon which all other living forms are directly or indirectly dependent. These autotrophs have the remarkable property of capturing the inexhaustible energy of the sun to synthesise organic compounds which are vital for the existence of all life … Read more
Depletion of Natural Resources– Metals, Minerals — Conservation Policy All the materials and energy essential for the survival and welfare of living beings including humans-are provided by nature. They are called Natural Resources. A thing becomes resource only when it is used by humans to perform a function. Man lives in nature and … Read more
Biodiversity-Defination, types, importance, hotspots, threats and conservation The term biodiversity was coined as a contraction of biological diversity by E.O. Wilson in 1985. Biodiversity may be defined as the variety and variability of living organisms and the ecological complexes in which they exist. In other words, biodiversity is the occurrence of different types … Read more
Natural Resources, their sustainable management and conservation A natural resource is something that is found in nature and can be used by people. Earth’s Natural Resources include Light, air, water, Plants, animals, Soil, stone, Minerals, and fossil fuels. People need some natural resources to stay alive. They use others to make their lives … Read more
Energy security Energy security can be defined as “the uninterrupted availability of energy sources at an affordable price”. Energy security has many dimensions: long-term energy security mainly deals with timely investments to supply energy in line with economic developments and sustainable environmental needs. Short-term energy security focuses on the ability of the energy … Read more