• IPCC
• UN Conference on Environment and Development (Earth Summit), 1992
• Agenda 21
  • An action plan of UN relating to sustainable development adopted at the Earth Summit, 1992
• UNFCCC
• Kyoto Protocol

IPCC

• 1988 by World Meteorological Organisation and UNEP
• tasked with reviewing and assessing the most recent scientific, technical and socio-economic information produced worldwide relevant to the understanding of climate change
• Nobel Prize in 2007
• The IPCC does not carry out its own original research, nor does it do the work of monitoring climate or related phenomena itself.
• A main activity of the IPCC is publishing special reports on topics relevant to the implementation of the (UNFCCC)
• Till now, it has released four assessment reports (1990, 1995, 2001, 2007)
• Fifth assessment report is due in 2014

UNFCCC

1992 at the Rio Summit.

194 members. Secretariat at Bonn.

Parties to UNFCCC are classified as:

• Annex I countries – industrialized countries and economies in transition
• Annex II countries – developed countries which pay for costs of developing countries
• Developing countries.

 

Conference	Place	Outcome
1995 COP1	Berlin	The Berlin Mandate
1996 COP2	Geneva
1997 COP3	Kyoto	Kyoto Protocol
1998 COP4	Buenos Aires
1999 COP5	Bonn
2000 COP6 /2001 COP6	The Hague/Bonn	CDM and Joint Implementation adopted at Bonn
2001 COP7	Marrakesh
2002 COP8	New Delhi	Delhi Declaration: Calls for efforts by developed countries to transfer technology and minimize the impact of climate change on developing countries
2003 COP9	Milan
2004 COP10	Buenos Aires
2005 COP11/MOP1	Montreal
2006 COP12/MOP2	Nairobi
2007 COP13/MOP3	Bali	Bali Action Plan
2008 COP14/MOP4	Poznan, Poland
2009 COP15/MOP5	Copenhagen
2010 COP16/MOP6	Cancun
2011 COP17/MOP7	Durban, South Africa

 

Tarawa Climate Change Conference

• In the lead up to COP16, the leaders of the world’s most climate-change vulnerable countries met in Kiribati in November 2010
• Ambo Declaration was adopted
  • It calls for more and immediate action to be undertaken to address the causes and adverse impacts of climate change.

CoP-16/CMP-6, Cancun

COP-16 President: Patricia Espinosa, Mexico’s foreign secretary

COP-17 will be held in Durban

Issues

• Forestry issues and reducing emissions from deforestation and forest degradation (REDD) plus
• The developed countries are pushing for transparency from countries where they will fund climate change mitigation.
  • The assessment of carbon emission mitigation for developing countries is right now through domestic communication but is subject to international consultation and analysis. This push for transparency is a major contentious issue.
• Fast-track finance: $ 30 bn had been committed at CoP-15. A large part of this funding is yet to come through.

 

Goals

Agreements Reached

• The outcome of the summit was an agreement, not a binding treaty, which calls on rich countries to reduce their greenhouse gas emissions as pledged in the Copenhagen Accord, and for developing countries to plan to reduce their emissions, to limit global warming to less than 2 degrees celsius above pre-industrial levels.
• There should be no gap between the first commitment period of the Kyoto Protocol, which expires in December 2012, and the second phase.
• The agreement calls on the developed countries to “raise the level of ambition of the emission reductions to be achieved by them individually or jointly, with a view to reducing their aggregate level of emission of green house gases”
• Allows flexibility in choosing the base year for setting emission reduction targets
• Emissions trading and the project based mechanism under the KP shall continue to be available to Annex 1 parties as a means to meet their quantified emission limitation and reduction objectives.
• The agreements recognize that in all climate change related action, human rights must be respected. They also recognise the need to engage with a broad range of stakeholders, including youth and persons with disability, and call for gender equality and effective participation of women and indigenous people in effective action on all aspects of climate change.
• The BASIC group softened the three demands it had before the talks began
  • Necessity of a second commitment period to the Kyoto Protocol
  • Need to accelerate disbursement under the fast start finance in the form of new and additional resources through a multilaterally supervised mechanism
  • Continued dialogue on IPRs as part of the technology development and transfer issues.
• REDD is a part of the package and proposed mitigation actions include conservation and enhancement of forest carbon stocks and sustainable management of forests.
  • REDD is a set of steps designed to use market/financial incentives in order to reduce the emissions of greenhouse gases from deforestation and forest degradation. Its original objective is to reduce GHGs but it can deliver ‘co-benefits’ such as biodiversity conservation and poverty alleviation
  • REDD+ calls for activities with serious implication directed towards the local communities, indigenous people and forests which relate to reducing emission from deforestation and forest degradation. It goes beyond deforestation and forest degradation and includes the role of conservation, sustainable management of forests and enhancement of forest carbon stocks
• A Cancun Adaptation Framework has been proposed to strengthen and address implementation of action, and various kinds of assessments, apart from R&D and host of other issues.
• Green Climate Fund The fund will be designed by a transitional committee, with 15 members from the developed countries and 25 from the developing nations.
• Pledge by the developed countries to provide $100 bn annually till 2020.

 

Conclusion

• UNFCCC secretary-general Christian Figueres emphasised that the main achievement of the Cancun meet has been to restore some degree of faith in the multilateral process.
• The agreements don’t mention any reduction targets.
• Though the agreements recognize the need to reduce the GHG emissions and curb the increase in global average temperatures below 2 degrees Celsius above pre-industrial levels, in the absence of any firm target, this could be an inadequate and vague provision
• Bolivia has rejected the agreement, saying that it won’t support agreement without binding emission cuts.
• In a sense, the summit was both a major step forward as well as a failure
• It was a step forward because in recent years climate change negotiations had stumbled and this meeting helped overcome that
• It was a failure because it failed to reach an agreement for binding restrictions that are required to avert global warming.
• There was no agreement on how to extend the Kyoto Protocol, or how the $100 billion a year for the Green Climate Fund will be raised or whether developing countries should have binding emissions reductions.

Under the Cancun Agreements, the targets set by industrialised countries for reduction of greenhouse gas emissions are recognised as part of the multilateral process. They must now draw up low-carbon development plans and strategies and also report their inventories annually. In the case of developing countries, actions for emissions reduction will be recognised officially; a registry will record and match their mitigation actions to finance and technology support from rich countries; and they will report their progress every two years. These form a good preamble for target-setting for all member-countries under an agreed framework at Durban next year.

Trivia

• A large amount of energy used during the conference came from renewable sources
• Around 10000 trees and bushes will be planted in Cancun

Role of India and its relevance

• India can act as a mediator between the developing and developed countries
• India’s approach to climate change negotiations has been governed by three factors – how to protect the country’s economic interest and environment agenda, to use climate change as a tool of global diplomacy and consolidate its position on world forums.
• At Cancun, India was responsible for having made five insertions into the Agreement
  • In the section on shared vision, the figure of 50 pc has been dropped from identifying a global goal for substantially reducing emissions by 2050
  • The phrase access to sustainable development has been introduced in the context of working towards identifying a time-frame for global peaking of greenhouse gas emissions based on the best available scientific knowledge
  • International Consultation and Analysis (ICA) finds mention the agreements. It proposes to enhance the reporting for the non-Annex 1 parties or developing countries on mitigation  action and its effects and support received
• At Cancun, India also proposed legally binding emission cuts.

 

 

BT Brinjal

• In 2006, Maharashtra Hybird Seeds Company submitted biosafety and efficacy data to the GEAC and applied for permission to conduct large-scale trials
• At the same time SC imposed a ban on the on-going field trials
• An expert committee was constituted by GEAC to look into the concerns raised by several civil society actors
• SC later lifted the ban on field trials
• After a series of reviews the environment ministry declared a moratorium on Bt Brinjal in Feb 2010

Risk assessment

• Civil society has demanded that the science of risk assessment be made rigourous, independent and peer-reviewed

Soil Pollution is the Contamination of the soil by human and natural activities which may cause harmful effects on living beings.
This may be due to the following factors.

(i) Industrial wastes: Industries are the major causes for soil pollution Textiles, steel, paper, Cement, oil, dyeing and other industries are responsible for soil pollution. Toxic organic compounds and phenol destroy the fertility of the soil.
(ii) Biological agents – Fungi, protozoa, bacteria are important Biological agents for soil pollution. The human and animal wastes, garbage, waste water generates heavy soil pollution.
(iii) Radio active pollutants: Atomic reactor, nuclear radio active devices releases radio active pollutants. These pollutants enter the land and accumulate there by causing soil pollution.
(iv) Pesticides: Pesticides pollute the soil. There are of two types (i) chlorinated hydrocarbon insecticide (2) Organic phosphorous pesticides. Common chlorinated hydrocarbon insecticides are DDT, BHC.

Organo phosphorous insecticides are synthetic chemicals like Malathion and parathion.

DDT reduces the activity of sex hormones of male and female. The land with fungicides insecticides causes diseases to human beings.

Fertilizers: These discharge N, Na, K, S, Nitrates etc., into the soil. The nitrate causes cancer.

Polymer, Plastics & other water: These materials appear as garbage. Solid wastes and their quantities increase day by day. They pollute the atmospheres, land and also water badly.

Agricultural practices: Modern agriculture practices pollute the soil to a large extent. Today huge quantities of fertilizers, pesticides, weedicides are added to increase the crop field. Apart from these farm wastes, manure debris, soil erosion containing inorganic chemicals are causing soil pollution.
Effect of soil pollution
1.Organic wastes enter the soil pores and decompose. Pathogenic bacteria spread infection.
2.Compounds containing As, Hg, Cr, Ni, Zn and Fe are toxic to life.
3.Fluorides affect plant development
4.Water logging and salinity increase the dissolved salt content in the soil. Some plants are very sensitive to soil PH and salinity.
Thus land becomes unfit for irrigation.
Control of soil pollution
1.Treat the sewage before land disposal
2.Rotate the crop pattern to allow the soil replenish the nutrients.
3.Preserve and protect top fertile soil, control soil erosion by tree plantation.
4.Fertilizers may be applied only after estimating the soil and crop measures.
5.Production of natural fertilizers Excessive use of chemical fertilizers and insecticides should be avoided. Bio pesticides should be used instead of toxic chemical pesticides.
6.Proper hygienic condition- People should be trained regarding the sanitary habits.
7.Recycling and reuse of waster – The wastes such as paper, plastic, metals, glasses should be recycled and used.

 

Niche:- a  description  of  all  the  biological,  physical  and  chemical  factors  that  a  species needs to survive, stay healthy and reproduce. No two species have exact identical niches. Niche plays an important role in conservation of organisms.

Types of Niche

1. Habitat niche – where it lives
2. Food niche – what is eats or decomposes & what species it competes with
3. Reproductive niche -how and when it reproduces.
4. Physical & chemical niche – temperature, land shape, land slope, humidity & other requirement.

 

• located where river meets the sea.
• the most productive water bodies in the world
• The complete salinity range from 0-35 ppt is seen from the head (river end) to the mouth (sea end) of an estuary
• Coastal lakes which have their connection with the sea through small openings are better known as lagoons or backwaters acting as a natural water filter

 

Estuary Formation:

grouped into four geomorphic categories based on the physical processes responsible for their formation:

1) rising sea level; (2) movement of sand and sandbars; (3) glacial processes; and (4) tectonic processes.

India Estuarine Ecosystem

The Country has 14 major, 44 medium and 162 minor rivers drains into the sea through various estuaries.

Major estuaries occur in the Bay of Bengal.

Most of the India’s major estuaries occur on the east coast. In contrast, the estuaries on the west coast are smaller.

 

MANGROVES

are the characteristic littoral plant formation of tropical and subtropical sheltered coastlines.

are trees and bushes growing below the high water level of spring tides which exhibits remarkable capacity for salt water tolerance.

basically evergreen land plants growing on sheltered shores, typically on tidal flats, deltas, estuaries, bays, creeks and the barrier islands. require high solar radiation and have the ability to absorb fresh water from saline/ brackish water. produces pneumatophores (blind roots) to overcome respiration problem in the anaerobic soil conditions

• Leaves are thick and contain salt secreting glands.
• exhibit viviparity mode of reproduction. i.e. SeedS germinate in the tree itself (before falling to the ground). This is an adaptative medianiSintoovercome the problem of germination in Saline water.
• crystals of salt on the back of the leaves; others block absorption of salt at their roots

The mangroves of Sundarbans are the largest single block of tidal holophytic mangroves of the world. famous for the Royal Bengal Tiger and crocodiles.

The mangroves of Bhitarkanika (Orissa), which is the second largest in the Indian sub continent, harbour high concentration of typical mangrove species and high genetic diversity have (additional) special roots such as prop roots, pneumatophores  which help to impede water flow and thereby enhance the deposition of sediment in areas (where it is already occurring), stabilize the coastal shores, provide breeding ground for fishes. protects coastal lands from tsunami, hurricanes:and floods release oxygen back to the atmosphere, along with a little methane gas

 

CORAL REEFS

Coral is actually a living animal.

has a symbiotic relationship (each gives something to the other and gets something back in return) With ‘zooxanthellae’ microscopic algae which live on coral [i.e. instead of living on the sea  floor, the algae lives up on the coral which is closer to the ocean surface and so that the algae gets lots of light.

The tissues of corals themselves are actually not the beautiful colors of the coral reef, but are instead clear (white). The corals receive their  coloration from the zooxanthellae living within their tissues.

• There are two types of corals: hard corals and soft corals, such as sea fans and gorgonians. Only hard corals build reefs.
• The builders of coral reefs are tiny animals called polyps. As these polyps thrive, grew, then die, they leave their limestone (calcium carbonate) skeletons behind. The limestone is colonized by new polyps.
• found in tropical and sub-tropical water, there are also deep water corals in colder regions
• The United Nations Environment Programme reports that there are more cold water coral reefs worldwide than tropical reefs.
• There are only about 6 different coral species associated in building with these reefs.
• The largest cold-water coral reef is the Rost ‘Reef off Norway occur in shallow tropical areas where the sea water is clean, clear and warm.
• one of the most productive and complex coastal ecosystems with high biological diversity classified depending on their locations into fringing, patch, barrier and atoll.
• The fringing reefs are contiguous with the shore and they are the most common – by occurring reef form, found in Andamans.
• Patch reefs are isolated and discontinuous patches, lying shoreward of offshore reef structures as seen in the Palk bay, Gulf of Mannar and Gulf of Katchchh.
• Barrier reefs are linear offshore reef structures that run parallel to coastlines and arise from submerged shelf platforms. The water body between the reef and the shore is termed as lagoon. Barrier reefs are seen in Nicobar and Lakshadweep.
• Atolls are circular or semi-circular reefs that arise from subsiding sea floor platforms as coral reef building keeps ahead of subsidence. The examples are the atolls of Lakshadweep and Nicobar.
• Among the four major reef areas of India, Andaman and Nicobar Islands are found to be very rich in species diversity followed by the Lakshadweep Islands, the Gulf of Mannar and finally the Gulf of Kachchh.

 

 

Coral Bleaching

 

Bleaching, or the paling of coral colour occurs; when (i) the densities

of zooxanthellae decline and (ii) the concentration of photosynthetic pigments within the zooxanthellae fall.

Ecological causes of coral bleaching

• Temperature (Major Cause)
• Sub aerial Exposure-Sudden exposure of reef flat corals to the atmosphere during events such as extreme low tides, ENSO-related sea level drops or tectonic uplift can potentially induce bleaching.
• Sedimentation
• Fresh Water Dilution
• Inorganic Nutrients(e.g. ammonia and nitrate)
• Xenobiotics -Zooxanthellae loss occurs during exposure of coral to elevated concentrations of various chemical contaminants, such as Cu, herbicides and oil.
• Epizootics

 

KEY INITIATIVES TO PROTECT MARINE AND COASTAL ENVIRONMENTS

 

1. Coastal Ocean Monitoring and Prediction System (COMAPS)

• Being implemented from 1991. Assesses the health of coastal waters and facilitates management of pollution-related issues
• Programme was restructured and modified in 2000 2001 to include pollution monitoring; liaison, regulation and legislation; and consultancy services.

2.Land Ocean Interactions in the Coastal Zone (LOICZ)

 

• Launched in 1995. Investigates the effects of global change on the coastal zone
• Aims to develop, on a scientific basis, the integrated management of coastal environments

3. Integrated Coastal and Marine Area Management (ICMAM)

• Launched in 1998
• Aims at integrated management of coastal and marine areas.
• Model plans for Chennai, Goa and Gulf of Kutch being prepared

4. Society of  Integrated Coastal Management (SICOM)

• Launched in 2010
• Major national initiative to protect coastal ecosystems
• A professional body with experts in various aspects of coastal science and management

5. Institutions for Coastal Management

• The Notification on Coastal Regulation Zone (CRZ), 1991 (as amended from time to time) aims at protecting coastal stretches in India.
• India has created institutional mechanisms such as National Coastal Zone Management
• Authority (NCZMA) and State Coastal Zone Management Authority (SCZMA) for enforcement and monitoring of the CRZ Notification.
• These authorities have been delegated powers under Section 5 of the Environmental (Protection) Act, 1986 to take various measures for protecting and improving the quality-of the coastal environment and preventing, abating  and controlling environmental pollution in coastal areas.

 

Waste minimization is an appropriate strategy to address the problems of industrial pollution. The objective of the scheme is to assist the small and medium scale industries in adoption of cleaner production processes.

• A scheme on adoption of clean technology and promotion and establishment of waste minimization circles in small and medium scale industries is being implemented at the initiative of Ministry of Environment & Forests.
• So far, 118 waste Minimisation Circles have been established in 41 sectors in 17 geographic locations in the country.
• A “Waste Minimization Circle (WMC)” is a small group (5 to 7 units) of entrepreneurs in the small scale sector, whose units manufacture similar products and employ the same processes voluntarily meeting periodically and regularly in the premises of each member unit, one after another, to analyze the current operations of the host unit.

 

S.No	Name of National Parks/ Wild Life Sanctuary	District	Area(Sq.km.)
National Parks
1	Keoladeo National Park	Bharatpur	28.73
2	Ranthambore National Park	Sawai Madhopur	392.50
		Sub Total	421.23
Sanctuaries
1	Bandh Baratha WL Sanctuary	Bharatpur	199.50
2	Bassi WL Sanctuary	Chittorgarh	138.69
3	Bhensrodgarh WL Sanctuary	Chittorgarh	229.14
4	Darrah Game Sanctuary	Kota, Jhalawar	274.41
5	Desert WL Sanctuary	Barmer, Jaisalmer	3,162.00
6	Fulwari ki Nal WL Sanctuary	Udaipur	492.68
7	Jaisamand WL Sanctuary	Udaipur	52.34
8	Jamwa Ramgarh WL Sanctuary	Jaipur	300.00
9	Jawahar Sagar WL Sanctuary	Kota	153.41
10	Keladevi WL Sanctuary	Karoli,Sawai Madhopur	676.40
11	Kesarbagh WL Sanctuary	Dholpur	14.76
12	Kumbalgarh WL Sanctuary	Udaipur,Rajsamand,Pali	608.57
13	Mount Abu WL Sanctuary	Sirohi	112.98
14	Nahargarh WL Sanctuary	Jaipur	50.00
15	National Chambal WL Sanctuary	Kota, S.Madhopur, Bundi, Dholpur, Karauli	280.00
16	Ramgarh Vishdhari WL Sanctuary	Bundi	252.79
17	Ramsagar WL Sanctuary	Dholpur	34.40
18	Sajjangarh WL Sanctuary	Udaipur	5.19
19	Sariska WL Sanctuary	Alwar	557.50
20	Sawai Manshingh WL Sanctuary	Sawai Madhopur	127.76
21	Shergarh WL Sanctuary	Kota	98.70
22	Sitamata WL Sanctuary	Chittorgarh,Udaipur	422.94
23	Tal Chappar WL Sanctuary	Churu	7.19
24	Todagarh Rawali WLSanctuary	Ajmer,Pali,Rajsamand	463.03
25	Van Vihar WL Sanctuary	Dholpur	25.60
		Sub Total	8,739.98
		Grand Total	9,161.21

 

1. The term ecosystem was coined by                                                                                          A. Bennett. J.W.              B.  Odum. E.R                                                                                          C. Tansley                         D.  Walter, H.

 

2. The term ecology was coined by:                                                                                               a. Eton                                  b. HaeckeL       c. Odum, E.P .                     d. Thomas. D.S.G.

 

3. Consider the following statements and select the correct answer using the code given below:
4. The web that links all organisms with their physical environment is known as biosphere.
5. The biosphere extends from the bottom of the ocean trenches up to 8 km above the sea level.
6. Biosphere is synonymous with ecosphere
7. Biosphere is found only on Earth in the Solar System.

 

Code:

1. 1,2 and 3 arc correct, b. 1,3 and 4 are correct,
2. 2, 3 and 4 are correct. d. 1, 2, 3 and 4 are correct.

 

4. Consider the following statements and select the correct answer using the code given below
5. The scientific study of the interaction between organisms and environment is known as ecology.
6. The term ecology was coined by Odum, E.R

Code:

1. Only 1 is correct. b. Only 2 is correct.
2. Both 1 and 2 are correct. d. Neither 1 nor 2 is correct.

 

5. Consider the following statements and select the correct answer using the code given below:

1 Phosphorus is abundant in nature                           .

2. Phosphorus is an excretory product.
3. Phosphorus cycle can be disrupted by the use of chemical fertilizers.
4. Phosphates in the soil are taken into the plant for protection.

 

Code:

1. 1,2 and 3 are correct. b. 1,3 and 4 are correct
2. 2, 3, and 4 are correct. d. 1, 2, 3 and 4 are correct.
3. The mean productivity is highest in which of the following?
4. Grassland b. Continental shelf
5. Cultivated land d. Fresh water
6. Consider the following statements and select the correct answer using the code that follows:
7. A food chain is the sequence of energy transfer from the low er levels to the higher trophic levels.
8. All animals depend on plants for their food.
9. Fox may eat grass.

Code:

1. 1 and 2 arc correct. b. 1 and 3 are correct
2. 2 and 3 are correct. d. 1, 2 and 3 are correct.

 

8. Which one of the following is not a primary consumer:
9. Buffalo b. Goat
10. Lizard d. Rabbit

 

9. Which one of the following is not a tertian- consumer?
10. Frog b. Leopard
11. Lion d. Vulture
12. Arrange the following animals in a sequential trophic level and select the correct answer using the code given below:
13. Eagle 2. Frog
14. Insect 4. Plant
15. Snake

Code:

1. Plant, insect, frog,eagle and snake
2. Plant, insect, frog, snake and eagle
3. Plant, frog,insect, snake and eagle
4. Plant,insect,frog, eagle and snake

 

 

found where rainfall is about 25-75 cm per year, not enough to support a forest, but more than that of a true desert.

vegetation formations that are generally found in temperate climates.

In India, they are found mainly in the high Himalayas. The rest of India’s grasslands aremainly composed of steppes and savannas.

Steppe formations occupy large areas of sandy and saline soil; in western Rajasthan, where the climate is semi-arid,

The major difference between steppes and savannas is that all the forage in the steppe is  provided only during the brief wet season whereas in the savannas forage is largely from grasses that not only grow during the wet season but also from the  smaller amount of regrowth in the dry season.

 

Types of Grasslands

1. semi-arid zone (The Sehima-dichanthium type)

It covers the northern portion of Gujarat, Rajasthan (excluding Aravallis), western Uttar Pradesh, Delhi and Punjab.

The topography is broken up by hill spurs and sand dunes.

senegal, Calotropis gigantia, Cassia auriculata, Prosopis cineraria, Salvadora oloides and zizyphus Nummularia which make the savanna rangeland look like scrub.

2. dry sub humid zone (The Dichanthium- cenchrus-lasitrrus type)

It covers the whole of peninsular India (except Nilgiri).

The thorny bushes are Acacia catechu, Mimosa, Zizyphus (ber) and sometimes fleshy Euphorbia, along with low trees of Anogeissus latifolia, Soymida febrifuga and other deciduous species.

Sehima (grass)is more prevalent on gravel and the cover maybe 27%. Dichanthium (grass) flourishes on level soils and may cover 80% of the ground.

3)  moist subhumid zone(The Phragmities- sacchrum-imperata type)

It covers the Ganga alluvial plain in Northern India.

The topography is level, low lying and ill-drained.

Bothriochloa pertusa, Cypodon dactylon and     Dichanthium annulatum are found in transition zones.

The common trees and shrubs are Acacia arabica, hogeissus, latifolia, Butea monosperma,

Phoenic sylvestris and Zizyphus nummularia.

Some of these are replaced by Borassus sp in the palm savannas especially near Sunderbans.

4) The Themeda – Arundinella type

This extends to the humid montane regions and moist sub-humid axeas of Assam, Manipur,West Bengal, Uttar Pradesh, Punjab, Himachal Pradesh and. Jammu and Kashmir.

The savanna is derived from the humid forests on account of shifting cultivation and sheep grazing.

Indian Grasslands and Fodder Research Institute, Jhansi and Central Arid Zone Research institute, Jodhpur

Role of fire

fire plays, an important role in the management  of grasslands.

Under moist conditions fire favours grass over trees, whereas in dry conditions fire is often necessary to maintain grasslands against the invasion of desert shrubs.

Burning increases the forage yields, e.g. Cynodon daotylon