em oxygen cycle.ppt

8/13/2019 EM oxygen cycle.ppt

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Agriculture, fisheries and

oxygencycle

Vishnuraj.vr

S3 mba


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Agriculture

Agriculture, also called farmingor

husbandry, is the cultivation of animals, plants,

and other life forms for food, fiber, biofueland

other products used to sustain life.Agriculture

was the key development in the rise of human

civilization, whereby farming of domesticated

species created food surplusesthat nurtured thedevelopment of civilization. The study of

agriculture is known as agricultural science.

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http://en.wikipedia.org/wiki/Animalshttp://en.wikipedia.org/wiki/Planthttp://en.wikipedia.org/wiki/Foodhttp://en.wikipedia.org/wiki/Fiberhttp://en.wikipedia.org/wiki/Biofuelhttp://en.wikipedia.org/wiki/Civilizationhttp://en.wikipedia.org/wiki/Domesticationhttp://en.wikipedia.org/wiki/Economic_surplushttp://en.wikipedia.org/wiki/Civilizationhttp://en.wikipedia.org/wiki/Agricultural_sciencehttp://en.wikipedia.org/wiki/Agricultural_sciencehttp://en.wikipedia.org/wiki/Civilizationhttp://en.wikipedia.org/wiki/Economic_surplushttp://en.wikipedia.org/wiki/Domesticationhttp://en.wikipedia.org/wiki/Civilizationhttp://en.wikipedia.org/wiki/Biofuelhttp://en.wikipedia.org/wiki/Fiberhttp://en.wikipedia.org/wiki/Foodhttp://en.wikipedia.org/wiki/Planthttp://en.wikipedia.org/wiki/Animals


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IndianAgriculture Scenario

STRENGTHS Rich Bio-diversity

Arable land

Climate

Strong and well dispersedresearch and extension system

OPPORTUNITIES Bridgeable yield crops

Exports

Agro-based Industry

Horticulture

WEAKNESS Fragmentation of land

Low Technology Inputs

Unsustainable Water Management

Poor Infrastructure Low value addition

THREATS Unsustainable Resource Use

Unsustainable RegionalDevelopment

Imports


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Current Concerns

Pressure of the Population on Land

Land Degradation

Water Balance

Low level of mechanization Low Fertilizer Consumption

Development of Sustainable agriculture

Generation and Transfer of Technology

Improvement of input efficiency

Promotion of Investments in agriculture

Strengthening of institutional infrastructure

Better risk management


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Indias Agricultural products

Rice

Wheat

Cashew

Tea

Coffee

Castor

Jute

Fruits and Vegetables- Onions, Mango, Grapes, Banana,Tomato , Potato , Lichchi ,etc.


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fishery in India

India is ranked second after China for inland fishery sector Fishery contributes significantly to the agriculture (5.4%

GDP) and marginally to the national economy (1.04%

GDP).

The GDP contribution from fisheries sector has reached

Rs.29, 707 crore (GBP 372 Bl.) in 2004-05 from Rs.245

crore(GBP 3 Bl.) in the year 1970-71.

Indian share in global production has reached 4.36% per

cent with 9.92% in inland and 2.8% in marine.

The fisheries sector has been providing employment to

over 2 Million fishermen through fishing operations.

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Oxygen cycle

The oxygen cycle is the biogeochemical cycle

that describes the movement of oxygen within and

between its three main reservoirs: the atmosphere (air),

the biosphere (living things), and the lithosphere(Earth's crust).

The main driving factor of the oxygen cycle is

photosynthesis, which is responsible for the modern

Earth's atmosphere and life.

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The Oxygen Cycle(cont..)

Almost all living things need oxygen. They

use this oxygen during the process of creating

energy in living cells.

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Just as water moves from the sky to the

earth and back in the hydrologic cycle, oxygen is

also cycled through the environment. Plants

mark the beginning of the oxygen cycle. Plantsare able to use the energy of sunlight to convert

carbon dioxide and water into carbohydrates

and oxygen in a process called photosynthesis.This means that plants "breathe" in carbon

dioxide and "breathe" out oxygen.

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em oxygen cycle.ppt

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