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Monday, 21 August 2023

Green Hydrogen definition in India

 Green Hydrogen Definition in India

The Ministry of New & Renewable Energy has opted to characterize Green Hydrogen as possessing a well-to-gate emission, encompassing stages such as water treatment, electrolysis, gas purification, drying, and hydrogen compression, with a limit of up to 2 kg CO2 equivalent per kg of H2.

Environment Education Syllabus EnE--101

 

























Friday, 11 August 2023

Unit 2: Microbes Biotic resources

 Microbes Biotic resources

Microbes, also known as microorganisms, are essential biotic resources that play significant roles in various aspects of life on Earth. Despite their small size, microbes have a major impact on ecosystems, human health, biotechnology, and other fields. Here are some key ways in which microbes are valuable biotic resources:

 

Biological Recycling: Microbes are crucial for breaking down organic matter in the environment through processes like decomposition. They recycle nutrients, such as carbon, nitrogen, and phosphorus, making them available for plants and other organisms. This recycling process is essential for the sustainability of ecosystems.

 

Soil Health: Microbes are a vital component of healthy soil. They participate in nutrient cycling, improve soil structure, and help control disease-causing organisms. Many agricultural practices, such as composting and crop rotation, leverage the beneficial activities of microbes to enhance soil fertility.

 

Bioremediation: Microbes have the ability to degrade and detoxify pollutants in the environment. Bioremediation, a process that uses microbes to break down hazardous substances, is used to clean up contaminated soils and water bodies. This technology helps mitigate the impact of pollution.

 

Symbiotic Relationships: Microbes form symbiotic relationships with many plants and animals. For example, nitrogen-fixing bacteria form associations with leguminous plants, providing them with a vital nutrient (nitrogen). These relationships enhance the health and growth of the host organisms.

 

Fermentation: Microbes are used in various fermentation processes, such as the production of food and beverages (e.g., yogurt, cheese, beer, wine), as well as the creation of biofuels and pharmaceuticals. These processes have economic importance and cultural significance.

 

Biotechnology: Microbes serve as valuable tools in biotechnology. Genetic engineering and synthetic biology often involve the manipulation of microbial genomes to produce useful products, such as enzymes, antibiotics, and bio-based materials.

 

Ecological Balance: Microbes play a crucial role in maintaining ecological balance. They are part of the microbial food web, serving as food for larger organisms. They also influence the health of plants, animals, and other microbes, contributing to the overall stability of ecosystems.

 

Scientific Research: Microbes serve as model organisms in scientific research, allowing scientists to study fundamental biological processes. Their simple yet diverse genetics make them valuable for understanding genetics, evolution, and molecular biology.

 

It's important to recognize the value of microbes as biotic resources and to consider their conservation and sustainable use. Protecting microbial diversity and understanding their ecological roles can have far-reaching implications for environmental health, human well-being, and technological innovation.

Unit 2 : Wetland Biotic resources

 Wetland Biotic resources

Wetlands are valuable natural resources that play a crucial role in the environment. They are transitional zones between aquatic and terrestrial ecosystems, characterized by the presence of water, waterlogged soil, and unique plant and animal species adapted to these conditions. Wetlands provide a wide range of ecological, economic, and social benefits, making them essential resources for various reasons:

Biodiversity: Wetlands are rich in biodiversity, supporting a diverse array of plant and animal species. They serve as breeding, feeding, and nesting grounds for many aquatic and terrestrial species. Protecting wetlands helps preserve the biodiversity of these ecosystems.

Water Quality: Wetlands act as natural filters, removing pollutants and excess nutrients from water. They help improve water quality by trapping sediment, absorbing nutrients, and breaking down harmful substances, which is essential for maintaining healthy aquatic ecosystems and providing clean drinking water.

Flood Regulation: Wetlands function as natural buffers against flooding. They can absorb excess water during heavy rainfall, reducing the risk of downstream flooding. Wetlands act like sponges, storing water and slowly releasing it, which helps in flood control and reduces damage to infrastructure.

Climate Regulation: Wetlands play a role in climate regulation by sequestering carbon dioxide (a greenhouse gas) from the atmosphere. They store carbon in their soils, which can help mitigate the effects of climate change.

Recreation and Tourism: Wetlands offer opportunities for recreational activities such as bird watching, fishing, boating, and hiking. They are also popular tourist destinations, attracting visitors interested in experiencing the beauty and tranquillity of these unique ecosystems.

Economic Value: Wetlands provide essential resources for local economies. They support fisheries, agriculture, and forestry, and they also contribute to the tourism industry. The resources and services provided by wetlands have economic value that should be considered when making land use decisions.

Habitat and Nursery Areas: Many species of fish, birds, and other wildlife rely on wetlands for breeding and as nursery areas for their young. Protecting wetlands is essential for maintaining healthy populations of these species.

Cultural and Indigenous Values: Wetlands hold cultural significance for many Indigenous communities around the world. They are often considered sacred and are integral to traditional practices and beliefs.

Given these crucial roles, it is essential to conserve and manage wetland resources sustainably to ensure their continued benefits for current and future generations. This includes proper land use planning, regulation of development near wetlands, and restoration efforts for degraded wetland ecosystems.

Ø  Wetland day celebrated on 2nd Feb.

Ø  Presently, there are around 2400 Ramsar sites in the world. In India, In India, there are 75 Ramsar Sites as of Feburary 2023. The Wetlands (Conservation and Management) Rules, 2017, set forth regulations for wetlands.

Ø  Theme of wetland 2023 “ the wetland restoration”.

Ø  It is named after the city of Ramsar in Iran, where the convention was signed in 1971 and came into force 1975. The Ramsar convention came into force in India on 1 February 1982.

 

Unit 2: Grassland Biotic resources

Grassland Biotic resources

A grassland is an area where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. Furthermore, grasslands are one of the largest biomes on earth and dominate the landscape worldwide. There are different types of grasslands: natural grasslands, semi-natural grasslands, and agricultural grasslands. They cover 31–69% of the Earth's land area.

The health and well-being of human populations depend on the services provided by ecosystems and their components: the organisms, soil, water, and nutrients. Ecosystem Services are the process by which the environment produces resources such as clean water, forage, and range; habitat for wildlife; and pollination of native and agricultural plants.

National Grassland Ecosystems provide services that:

Ø  Disperse seeds

Ø  Mitigate drought and floods

Ø  Cycle and move nutrients

Ø  Detoxify and decompose waste

Ø  Control agricultural pests

Ø  Maintain biodiversity

Ø  Generate and preserve soils and renew their fertility

Ø  Contribute to climate stability

Ø  Regulate disease-carrying organisms

Ø  Protect soil from erosion

Ø  Protect watersheds, and stream and river channels

Ø  Pollinate crops and natural vegetation

Ø  Provide aesthetic beauty

Ø  Provide wildlife habitat

Ø  Provide wetlands, playas

Ø  Provide recreation

Ø  Provide research opportunities

Ø  Grasslands hold about 20 percent of global soil carbon stocks

Natural ecosystems and the plants and animals within them provide humans with services that would be very difficult to duplicate. For example, pollination is a service for which there is no technological substitute. Grasslands provide habitat for thousands of species of pollinators. While it is often impossible to place an accurate monetary amount on ecosystem services, we can calculate some of the financial values. Many of these services are seemingly performed “free” and yet are worth many trillions of dollars. Over 100,000 different animal species - including bats, bees, flies, moths, beetles, birds, and butterflies - provide free pollination services. One third of human food comes from plants pollinated by wild pollinators.

Most scientists believe there is a direct relationship between increased levels of carbon dioxide in the atmosphere and rising global temperatures. Through the process of photosynthesis, plants capture carbon dioxide and remove it from the atmosphere. Because the National Grasslands contain large areas of intact prairie and other grassland types, they provide the ecosystem service of carbon sequestration in grassland vegetation and soil organic matter. Grassland ecosystem services help sustain, support, and fulfill human life. These services can be tangible or intangible, but they are nevertheless critical for sustaining human well-being.

In India 12 categories of grass land:

B

Banni Grasslands Reserve

Bugyals

C

Chari-Dhand Wetland Conservation Reserve

G

Great Rann of Kutch

K

Khajjiar

Kutch Desert Wildlife Sanctuary

L

Langmarg

Little Rann of Kutch

N

Northwestern Himalayan alpine shrub and meadows

P

Palani Hills

T

Terai

Terai–Duar savanna and grasslands

Banni Grasslands Reserve or Banni grasslands form a belt of arid grassland ecosystem on the outer southern edge of the desert of the marshy salt flats of Rann of Kutch in Kutch District, Gujarat State, India. They are known for rich wildlife and biodiversity and are spread across an area of 3,847 square kilometres. 

Old Syllabus EVS 2017-2021

  BOS, 21.07.2017                                             Annexure-X For Batch 2017-21Onwards and 2017 admission batch – All courses ...