- Need for Forestry Development – Forest cover in India is only about 23%, less than the required 33%, so development is necessary.
- Main Causes of Decline – Agriculture expansion, shifting cultivation, overgrazing, and high demand for fuel and forest products.
- Livestock Pressure – Large livestock population depends on forests for grazing, causing serious damage.
- Transport Problems – About 16% forest areas are inaccessible; lack of cheap and proper transport makes forest use difficult.
- Other Problems – Forest fires, slow-growing trees, thin forests, and lack of trained staff affect proper forest management.
Key Points
Key Points: Introduction of Natural Vegetation
- Natural vegetation refers to plants that grow naturally without human help and remain undisturbed for a long time.
- It includes trees, shrubs, grasses, climbers, and creepers that adjust to the climate and soil of the region.
- Climate factors like temperature and rainfall determine the type of natural vegetation in an area.
- The Tropic of Cancer divides India into tropical (south) and temperate (north) regions, affecting vegetation patterns.
- Flora means plant species of a region, vegetation means plant communities, and a forest is a large area covered with trees and undergrowth.
Key Points: Major Types of Vegetation in India
- India has diverse natural vegetation due to variations in climate, soil, and relief.
- The Western Ghats and Andaman–Nicobar Islands have tropical evergreen forests.
- Tropical deciduous (monsoon) forests are found in regions with seasonal rainfall.
- Desert and semi-desert regions of Rajasthan have thorny and scrub vegetation.
- India’s vegetation is broadly divided into five types: Tropical Evergreen, Tropical Deciduous, Tropical Desert, Littoral (Mangroves), and Mountain forests.
Key Points: Forest Conservation
- Forests are declining due to deforestation, caused by agriculture expansion, overgrazing, urbanisation, industries and river valley projects.
- Loss of forest cover leads to soil erosion, floods and droughts, as forests help regulate water flow and rainfall.
- Forests absorb carbon dioxide; their decline increases greenhouse effect and global warming.
- India needs forest conservation to protect soil fertility, groundwater, climate balance and wildlife habitats.
- Reduced forests lower agricultural productivity by decreasing humus content and causing land degradation.
Key Points: Development of Forestry
Key Points: Forest Policy and Law
- Forest Policy 1894 & 1952 – First policy in 1894 (British period). After Independence, new policy in 1952 focused on forest classification, wildlife protection, control of shifting cultivation, grazing control, and better forest management.
- National Forest Policy 1988 – Main aim: protection, conservation and development of forests; increase forest cover through afforestation and social forestry.
- Objectives of 1988 Policy – Maintain ecological balance, prevent soil erosion and desertification, increase forest productivity, meet needs of rural and tribal people.
- Social Forestry (1976) – Tree planting to provide fuelwood, fodder and small timber; reduces pressure on natural forests; called “forestry of the people, by the people, for the people.”
- Types of Social Forestry – Agro forestry, community forestry, commercial farm forestry, non-commercial farm forestry, and urban forestry.
Key Points: Forest Conservation
- Importance of Forests – Forests are valuable natural resources; they support agriculture, industry, and maintain ecological balance.
- Need for Conservation – Deforestation causes soil erosion, floods, droughts, and ecological imbalance; forests take time to regenerate.
- Van Mahotsav (1950) – Annual tree-planting movement started to create awareness about importance of forests.
- Forest Conservation Act, 1980 (Amended 1988) – Made laws stricter to prevent deforestation, control grazing and shifting cultivation, and limit clear felling.
- Chipko Movement (1972) – Led by Sunder Lal Bahuguna; people hugged trees to stop cutting; helped ban tree felling in sensitive hill areas.
- People’s Participation – Environmental protection is more successful with involvement of local communities.
- Integrated Forest Protection Scheme (IFPS) – Focus on forest fire control, infrastructure, protection of sacred groves, restoration of ecosystems, and bamboo management.
Key Points: Impact of Human Activity on Vegetation
- Forest Area in India – Only about 23% of land is under forests, less than the required one-third for ecological balance.
- Causes of Forest Depletion – Population growth, agriculture expansion, shifting cultivation, industries, wood cutting, and overgrazing.
- Effects of Deforestation – Soil erosion, floods, droughts, hill slope denudation, and ecological imbalance.
- Conservation Efforts – Social forestry, regeneration of forests, and planting fast-growing trees.
- Forest Distribution – Highest forest cover in North-Eastern states and Andaman & Nicobar; very low in Rajasthan, Punjab, Haryana, and Delhi.
Distinction between Vegetation and Forest
| Basis | Vegetation | Forest |
|---|---|---|
| 1. Meaning | Includes trees, plants and grasses in an area. | Large area covered mainly with trees and shrubs. |
| 2. Coverage | Broad term for all types of plant cover. | Specific type of vegetation. |
| 3. Types | Includes woodland, grassland, etc. | Mostly dense tree cover. |
| 4. Structure | May include trees, shrubs and grasses together. | Thick and dense growth of trees. |
| 5. Landscape | Creates different landscapes. | Provides mainly one type of landscape (forest area). |
Distinction between Flora and Vegetation
| Basis | Flora | Vegetation |
|---|---|---|
| 1. Meaning | Refers to plant species of a particular region. | Refers to plant communities growing together in an area. |
| 2. Nature | Listed and studied by species. | Plants live in association in a given environment. |
| 3. Focus | Focuses on types of plants. | Focuses on plant cover of an area. |
| 4. Classification | Can be grouped into categories (e.g., Boreal flora). | Based on ecological conditions. |
| 5. Examples | Indian boreal species from Indo-Tibet. | Forests, grasslands, shrubs. |
Key Points: Classification of Vegetation Types
- Classification – Forests are classified by climate and rainfall into six types.
- Tropical Evergreen – Heavy rainfall; tall, dense trees; found in North-East and Western Ghats.
- Tropical Deciduous – 100–200 cm rain; shed leaves in summer; sal and teak important.
- Tropical Dry – 50–100 cm rain; short, less dense trees.
- Arid Forest – Below 50 cm rain; thorny bushes; Rajasthan region.
- Delta Forest – Mangrove forests in river deltas; Sundarbans example.
- Mountain Forest – Found in hills; vegetation changes with height; no plants above snowline.
