Forest Ecosystem
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The children walked on land that was both uneven and covered with many ______.

trees

Tibu aided the children in recognizing various trees like sal, teak, semal, sheesham, neem, palash, fig, khair, amla, ______, and kachnar.

bamboo

Besides trees, Prof Ahmad mentioned the presence of other ______, herbs, and grasses in the forest.

shrubs

Plywood, fuel wood, boxes, paper, matchsticks and furniture are examples of wooden items that may have been obtained from the ______.

<p>forest</p> Signup and view all the answers

Besides wooden items, forests also provide us with products like gum, oils, spices, fodder for animals, and ______ plants.

<p>medicinal</p> Signup and view all the answers

Professor Ahmad asked the children to observe how the branches of the tall trees formed a ______ over the other plants in the forest.

<p>canopy</p> Signup and view all the answers

In nature, trees produce enough ______, and the forest floor offers favorable conditions for them to germinate and develop into seedlings.

<p>seeds</p> Signup and view all the answers

Visiting a forest involves identifying and listing characteristics of trees like height, shape of leaves, ______, flowers and fruits.

<p>crown</p> Signup and view all the answers

Prof Ahmad explained that forests serve as 'green ______' due to their oxygen production and carbon dioxide absorption.

<p>lungs</p> Signup and view all the answers

According to Prof. Ahmad, forests act as natural ______ purifying systems, maintaining the cleanliness and health of our water sources.

<p>water</p> Signup and view all the answers

The proposal to clear part of the forest near the town was intended to address the town's ______ problem by creating employment opportunities.

<p>unemployment</p> Signup and view all the answers

Tibu was observed ______ around to keep the herd together. This demonstrated his agility and skill as a herder.

<p>running</p> Signup and view all the answers

The children brought a knife, a hand lens, a stick, and a ______ for their visit to the forest.

<p>notebook</p> Signup and view all the answers

The children met Tibu while he was taking ______ for grazing.

<p>cattle</p> Signup and view all the answers

The children decided to visit the forest with Prof. Ahmad after he told them about the ______ celebrations and the discussion that followed.

<p>jubilee</p> Signup and view all the answers

Prof Ahmad was a ______ working in the University.

<p>scientist</p> Signup and view all the answers

The branchy part of a tree above the stem is known as the ______ of the tree.

<p>crown</p> Signup and view all the answers

Different types and sizes of tree crowns create different horizontal layers in the forest, known as ______.

<p>understoreys</p> Signup and view all the answers

Giant and tall trees constitute the top layer of the forest, followed by shrubs and tall grasses, while ______ form the lowest layer.

<p>herbs</p> Signup and view all the answers

Variations in the types of trees and other plants in different forests are due to different ______ conditions.

<p>climatic</p> Signup and view all the answers

The forest floor is often dark-colored and covered with a layer of dead and decaying leaves, fruits, seeds, twigs, and small ______.

<p>herbs</p> Signup and view all the answers

The decaying matter on the forest floor is typically ______ and warm, promoting decomposition.

<p>moist</p> Signup and view all the answers

A continuous layer of treetops spreading over a forest is called a ______.

<p>Canopy</p> Signup and view all the answers

Besides timber, the Sheesham tree is also known for gum, medicine, or ______.

<p>oil</p> Signup and view all the answers

The forest floor feels like a spongy ______ due to the dead leaf layer.

<p>carpet</p> Signup and view all the answers

The activity suggested by Prof Ahmad involves using vegetable waste and leaves in a ______ to check for warmth.

<p>pit</p> Signup and view all the answers

Organisms that feed on plants are eaten by other organisms, forming a ______ chain.

<p>food</p> Signup and view all the answers

In the provided food chain, grass is eaten by insects, which are then consumed by the frog, followed by the snake and finally the ______.

<p>eagle</p> Signup and view all the answers

Cutting trees for a factory can disturb the food chains because all food chains are ______.

<p>linked</p> Signup and view all the answers

Organisms ultimately depend on ______ for food.

<p>plants</p> Signup and view all the answers

The text mentions that disturbing one ______ chain can affect other food chains in the forest.

<p>food</p> Signup and view all the answers

The text indicates that removing even one component of the forest, such as ______, affects all the other parts of the forest.

<p>trees</p> Signup and view all the answers

Forests act as a natural ______ of rainwater, allowing it to seep into the ground, which helps maintain the water table throughout the year.

<p>absorber</p> Signup and view all the answers

Unlike paved areas, forests prevent water ______ after heavy rainfall, allowing the water to seep into the ground.

<p>stagnation</p> Signup and view all the answers

The absence of trees can lead to soil erosion, as tree ______ normally bind the soil together, preventing it from being washed away by heavy rain.

<p>roots</p> Signup and view all the answers

Deforestation and increased demand for wood can put ______ on forests, leading to their vanishing if not managed sustainably.

<p>pressure</p> Signup and view all the answers

Forests' ability to maintain water flow in streams ensures a ______ supply of water, which is essential for ecosystems and human use.

<p>steady</p> Signup and view all the answers

Heavy rain hitting the ground directly, without tree cover, can ______ the soil and lead to flooding in nearby areas.

<p>damage</p> Signup and view all the answers

Proper management allows us to ______ forests and the environment while also enabling development.

<p>preserve</p> Signup and view all the answers

Forests are important because they help in bringing good ______ to neighboring areas, contributing to the local climate and water cycles.

<p>rainfall</p> Signup and view all the answers

When visiting a forest, it's advised to document your experiences through observations, including sketches, photographs and even recording ______.

<p>bird calls</p> Signup and view all the answers

Before venturing into a forest, one should ensure they have ______ to enter, which is key to responsible exploration.

<p>permission</p> Signup and view all the answers

To navigate effectively through a forest, bring a ______ and, if possible, accompany someone familiar with the terrain.

<p>map</p> Signup and view all the answers

During a forest visit, collecting seeds and identifying various plants by their height, crown shape, and ______ can enhance your understanding of its biodiversity.

<p>bark texture</p> Signup and view all the answers

To deepen your understanding of forest ecology, try to recognize animal ______, as well as interview forest officials or villagers to learn of the local plantlife.

<p>droppings</p> Signup and view all the answers

Flashcards

Forest's Role: "Green Lungs"

Forests act as natural "green lungs."

Forest's Role: Water Purifier

Forests help clean water naturally.

Prof Ahmad

A scientist who works at the university. He explained the concept of "green lungs" and water purifying systems to the children.

Town's Unemployment Problem

The forest can produce jobs but it needs to be preserved.

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Tibu

A young boy from a nearby village. He took cattle for grazing with her aunt.

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Forest Benefits

The forest provides useful resources.

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Golden Jubilee Celebrations

A planned celebration in town.

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Factory proposal

Clearing a forest.

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Tree

A tall, woody plant with a main stem and branches.

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Forest Floor

A forest floor is the ground surface of a forest, often covered with leaves and organic matter, providing conditions for seed germination.

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Canopy

A layer formed by the crowns of tall trees in a forest.

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Forest Products

Wood, paper, spices, fodder, and medicinal plants.

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Bamboo

A type of strong, woody grass, often used for building material.

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Forest

A forest contains trees, shrubs, herbs and grasses.

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Shrub

A woody plant, smaller than a tree, with several stems.

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Spices and medicinal plants

A product from forests; can be used in cooking and medicine.

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Crown of a tree

The branchy part of a tree above the stem.

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Understoreys

Horizontal layers in a forest created by different tree heights.

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Top Layer (Forest)

The uppermost layer of the forest, formed by giant and tall trees.

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Lower Forest Layers

Lower layers of the forest, consisting of shrubs, tall grasses, and herbs.

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Forest Floor Layer

The accumulation of dead and decaying organic material on the forest floor.

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Forest Animal Habitats

A habitat for insects, spiders, squirrels, ants, and other small animals.

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Forest Variations

Varying climatic conditions lead to differences in tree and plant species.

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Decaying Matter

The process by which dead organic matter is broken down and decomposed.

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Activity 12.3 (Decay)

An activity involving burying vegetable waste and leaves, then checking the temperature after a few days.

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Autotrophs

Organisms that make their own food, like plants.

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Heterotrophs

Organisms that obtain food from other organisms, like animals.

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Saprotrophs

Organisms that obtain nutrients from dead or decaying organic matter, like fungi and some bacteria.

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Food Chain

A sequence of organisms where each feeds on the one below it in the chain.

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Example Food Chain

Grass → insects → frog → snake → eagle

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Food Chain Interdependence

A disturbance in one food chain affects other linked food chains and the entire ecosystem.

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Forest Entry Permission

Securing permission before entering ensures responsible access and compliance with regulations protecting the area.

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Forest Navigation

Maps and familiar companions ensures safe travels while exploring unfamiliar territories.

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Forest Observations

Records enrich the experience and provide valuable information about the environment.

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Animal Droppings

Recognizing animal droppings gives more understanding of creatures inhabiting the ecosystem.

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Interviews

Gathering different perspectives provides insights into the forest's value and challenges.

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Forests as Water Absorbers

Forests act as a natural sponge, absorbing rainwater and replenishing the water table.

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Forests and Water Flow

Forests help prevent flooding and maintain a steady flow of water in streams throughout the year.

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Impact of Deforestation on Rain

Without trees, rain directly hits the ground, increasing flood risk and soil damage.

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Role of Tree Roots

Tree roots bind the soil, preventing it from being washed away or eroded by rain.

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Threats to Forest Regeneration

Overgrazing and excessive tree cutting prevent forest regeneration, leading to forest disappearance.

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Forests and Oxygen

Forests provide essential oxygen necessary for life.

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Forests as Habitats

Forests provide habitat for a large number of animals.

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Forests and Rainfall

Forests contribute to rainfall in neighboring areas.

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Study Notes

  • One evening, Boojho entered the park with an elderly scientist, Prof Ahmad, who worked at the university.
  • The children wanted to know about the town's golden jubilee celebrations.
  • The senior people then discussed the town's unemployment problem.
  • A factory proposal by clearing a forest area was met with objections.
  • Prof Ahmad explained that forests serve as green lungs and water purification systems.
  • They decided to visit a forest with Prof Ahmad.

Forest Visit

  • The children packed essentials like a knife, hand lens, stick, and notebook for their forest visit.
  • They met Tibu, a local boy, who was grazing cattle with his aunt and joined them; his aunt went on a different path
  • Tibu signaled the children to be quiet to avoid disturbing the forest animals.
  • Tibu led them to a high place with a broad view of the forest.
  • The children were surprised as they could not see any land due to the green tree cover.
  • The treetops formed a green canopy, but it was not uniformly green.
  • The environment was peaceful with a cool breeze.
  • The children were excited by a sudden sound of birds, which Tibu explained was normal.
  • Monkeys had climbed higher in the trees because of their presence, disturbing the birds.
  • Animals often use warning calls to alert others.
  • Other animals like boar, bison, jackals, porcupine, and elephants also inhabit the deeper forest areas.
  • Prof Ahmad cautioned the children against venturing too deep.
  • Forests serve as habitats for numerous animals and plants.
  • The ground was uneven and covered with many trees.
  • Tibu assisted in identifying trees like sal, teak, semal, sheesham, neem, palash, fig, khair, amla, bamboo, and kachnar.
  • Prof Ahmad pointed out various trees, shrubs,herbs and grasses.
  • The forest floor and trees had different creepers and climbers.
  • The sunlight barely reached through the leaves.

Forest Components

  • The canopy is what the branches of the tall trees creates as a roof over the other plants
  • Trees had different crown sizes, creating horizontal layers known as understoreys.
  • Giant and tall trees made up the top layer, followed by shrubs, tall grasses, and herbs.
  • Due to different climatic conditions, there are variations in trees, plants and animals in different forests.
  • Butterflies were fluttering in the flowers of shrubs and herbs.
  • The children found seeds and thorns clinging to them as they looked at the bushes.
  • They observed insects, spiders, squirrels, ants, etc., on trees, leaves, and the forest floor.
  • The forest floor was dark, covered with dead leaves, fruits, seeds, twigs, and herbs.
  • The decaying matter was moist and warm.
  • The children collected seeds and leaves and observed tiny mushrooms and insects under decaying leaves.
  • Micro-organisms were present apart from the visible insects in the forest soil.
  • Mushroom and other micro-organisms feed on dead plant and animal tissues, converting them to a dark substance called humus.
  • Humus is a dark-colored substance formed from decomposed organic matter, and decomposers are the micro-organisms responsible for this process.
  • Decomposers play a role in the forest.
  • Humus ensures nutrients from dead plants/animals are released into the soil.
  • Dead animals in the forest become food for vultures, crows, jackals, and insects, cycling nutrients.
  • This prevents waste in the forest.
  • Therefore, forests are called green lungs because photosynthesis releases oxygen that helps maintain the balance with carbon dioxide.
  • Trees help to uptake water from the ground through their roots and release water vapor into the air through evaporation.
  • Forests provide food, shelter, water, and medicines to different tribes that depend on it.
  • Bushes and tall grass provide shelter and food to animals.
  • Forest officers can identify animals by their droppings and footprints.
  • Beetles and grubs feed on decaying animal dung, and seedlings sprout from it.
  • Animals disperse the seeds of plants and help the forest thrive.
  • Decaying animal dung provides nutrients to seedlings.
  • Forests harbor a variety of plants, providing food and habitat for herbivores, which in turn support carnivores.
  • Decomposers ensure the supply of nutrients to growing plants.
  • Thus, forests are called 'dynamic living entities' full of life and vitality.

Forest Elements

  • The closed canopy and layers of vegetation slow the speed of raindrops.
  • The root system helps water seep into the ground.
  • The ground cover with decaying material acts like a sponge.
  • Rainwater drips from the trees because of the forest canopy.
  • After half an hour of rain, the layer of dead leaves was wet, but water did stagnate.
  • The forest acts as a natural absorber of rainwater and helps with permeation.
  • It helps to maintain the water table throughout the year and maintains the flow of water in streams.
  • Without trees, rain hits ground directly and may flood the surrounding area.
  • Roots of trees normally prevent soil erosion, washing away soil when absent..
  • Villagers explained they received good rainfall and have cool air because of the surrounding forest.
  • The forest also absorbed noise from a nearby highway.
  • Increased demand of wood created pressure on the forests and it started vanishing.
  • The forest near their village is not regenerating because animals are overgrazing, and there is indiscriminate felling of trees.
  • Protecting the forests by using them wisely also helps with the conservation of the environment.
  • Forests provide oxygen, protect soil, provide habitat, enable rainfall and are a medicinal source.
  • The amount of carbon dioxide in the air increases if forests disappear, resulting in the increase of earth's temperature.
  • In the absence of trees and plants, the animals will not get food and shelter.
  • Deforestation may lead a lack of water retention in the soil, resulting in floods.
  • Deforestation will endanger our life and environment.

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Description

Explore the forest ecosystem: uneven terrains with diverse flora like sal, teak, and neem. Forests offer wood for plywood, paper, and natural products like gum, oils, and medicinal plants. Tall trees create a canopy, and seedlings thrive on the forest floor.

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