11 effects on terrestrial systems
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The document discusses how climate change is affecting terrestrial ecosystems. It notes that temperature and precipitation determine the distribution of biomes, and that climate change is causing biomes to shift locations as conditions change. Forests currently occupy about one third of U.S. land but are predicted to migrate or shrink substantially due to warming temperatures and changing rainfall patterns. Grasslands are also expected to transition to deserts or shrublands in many areas.
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This document provides information about different ecosystems around the world, including cold environments, tropical rainforests, and the Amazon rainforest. It discusses the key components of ecosystems like producers, consumers, and decomposers. Regarding tropical rainforests, it describes their structure, climate, soils, plant and animal adaptations, and importance. For the Amazon, it outlines causes of deforestation like cattle ranching, impacts such as loss of biodiversity and soil erosion, and approaches to sustainable management including REDD+ programs and government schemes.
Tropical Rainforest Biomes
The document discusses the tropical rainforest biome and the impacts of climate change. It defines tropical rainforests as having very high rainfall, high temperatures, and high biodiversity. Tropical rainforests play an important role in regulating the global climate through carbon storage, oxygen production, and influencing weather patterns. Climate change poses threats to tropical rainforests like rising sea levels which can flood coastal forests, and droughts which make forests more vulnerable to fires. The loss of tropical rainforests exacerbates climate change due to reduced carbon storage capacity.
Summary of topic 2.4
1. Biomes are determined by factors like temperature, rainfall, and sunlight which affect photosynthesis and net primary productivity. Different biomes like tropical rainforests, savannas, and tundra support characteristic plant life adapted to their climate.
2. Succession over time and zonation over environmental gradients cause changes in plant communities. Early successional "pioneer" species establish first, followed by later successional species that outcompete pioneers. Eventually a stable "climax" community develops.
3. Human impacts like deforestation and grazing can interrupt succession, maintaining early successional "plagioclimax" communities
Rain forest and golbal warming
Rainforests are dense jungles that receive high amounts of rainfall, sometimes over 33 feet annually. They are home to the richest biodiversity in the world and are scattered around the globe in locations like the Amazon, Daintree, Alaska, Congo, and Southeast Asia. Rainforests are important because they produce oxygen, house much of the world's species, help regulate the climate by preventing global warming, and protect against soil erosion, floods, and droughts. Deforestation contributes to global warming by releasing the carbon stored in trees. The fires currently devastating the Amazon are depleting this important carbon sink and releasing large amounts of carbon dioxide into the atmosphere.
Deforestation.pptx
Deforestation occurs at a rate of about 50,000 square miles annually, an area roughly the size of England. The main direct causes of deforestation are agricultural expansion for subsistence and commercial farming and livestock grazing, as well as wood extraction through logging and infrastructure expansion. Underlying causes include poverty, government development policies, and global economic factors like markets and subsidies. Strategies to sustain tropical forests include sustainable agriculture and harvesting, ecotourism, and integrating science into national land use plans.
15 Chapter
The document summarizes different types of ecosystems including aquatic ecosystems. It discusses succession and climax communities in ecosystems and describes various biomes like tundra, taiga, temperate forests, tropical rainforests, grasslands, and deserts. It also covers freshwater ecosystems like rivers, streams, lakes, ponds, and wetlands as well as saltwater ecosystems including open oceans, coral reefs, seashores, and estuaries.
terrestial ecosystem.pptx
A terrestrial ecosystem is a land-based community of interacting species and their environment. Terrestrial ecosystems cover 28% of Earth's surface and include deserts, forests, grasslands, taigas, and tundras. Each ecosystem has distinct characteristics determined by factors like temperature, precipitation, and soil type that influence the types of plants and animals able to survive there. Climate change poses a threat to terrestrial ecosystems by altering habitats and thawing permafrost.
Climate change: Changes in the biosphere
The document summarizes the effects of climate change on different aspects of the biosphere, including land cover, marine life, forests, biodiversity, and humans. It discusses how land cover change affects surface albedo and evaporation. It also describes how ocean acidification impacts marine life by reducing the ability of some species to form shells and skeletons. Forests are threatened by diseases and wildfires fueled by climate change. Climate change endangers Arctic mammals that rely on sea ice. Humans face health risks from heat waves, storms, and changing disease patterns.
Eudece grasslands
Climate, parent material and soil, topography, and natural disturbances are the four major abiotic factors that influence grassland ecosystems. Climate, which includes temperature and precipitation patterns, is the most important factor determining grassland types. Grasslands occur in areas with varying temperatures and precipitation levels, from tropical regions with over 60 inches of rain annually to montane regions with under 30 inches. Topography such as elevation, slope and aspect also impact grassland ecosystems by affecting temperature, drainage and wildfire patterns. Natural disturbances like flooding and lightning-caused fires further contribute to grassland diversity.
Tundra forest
The document provides information about the tundra biome. It describes the tundra as a vast, cold region characterized by treeless vegetation and permanently frozen subsoil. It exists in the northernmost regions of the world and at high elevations. Plants and animals in the tundra are adapted to harsh conditions like freezing temperatures, short growing seasons, and nutrient-poor soil. Examples are given of the specific locations and characteristics of the Arctic, Antarctic, and alpine tundra biomes.
Ch 5 ed
Terrestrial biomes are areas sharing similar climate, topography, and soil conditions that support characteristic biological communities. The major terrestrial biomes include tropical rainforests, tropical savannas, deserts, grasslands, Mediterranean shrublands, deciduous forests, coniferous forests, tundra, and wetlands. Marine ecosystems include open ocean, coastal zones like coral reefs and estuaries, and tidal environments. Humans have significantly disturbed many ecosystems through habitat conversion, pollution, and overexploitation of resources.
Ch 5 ed
Terrestrial biomes are areas sharing similar climate, topography, and soil conditions that support characteristic biological communities. The major terrestrial biomes include tropical rainforests, tropical savannas, deserts, grasslands, temperate forests, boreal forests, and tundra. Human activities such as deforestation, overgrazing, agriculture, and urbanization have significantly disturbed many biomes and are the primary cause of biodiversity loss globally.
Chapt05 lecture
This document provides an outline of biomes and ecosystems around the world, including terrestrial biomes like rainforests, deserts, grasslands, and forests, as well as marine ecosystems from the open ocean to coastal areas. It also discusses freshwater ecosystems like lakes and wetlands, and notes several human impacts such as habitat loss, pollution, and climate change that are threatening biodiversity.
Eudece grasslands
The document summarizes the key abiotic factors that influence grassland ecosystems, including climate, parent material and soil, topography, and natural disturbances. Climate, which includes rainfall, temperature, and wind patterns, is the most important factor determining grassland types. Grasslands occur in areas with varying temperatures and precipitation levels. Parent material and soil composition influence soil texture and nutrient availability. Topography such as elevation, slope, and aspect also impact grassland environments. Natural disturbances such as flooding and fires further contribute to grassland diversity.
Similar to 11 effects on terrestrial systems (20)
Forest and climate change a study how world A Presentation by Mr Allah Dad K...
Forest and climate change a study how world A Presentation by Mr Allah Dad K...
Forest and climate change a study how world By Mr Allah Dad Khan
Forest and climate change a study how world By Mr Allah Dad Khan
Forest and climate change a study how world By Mr Allah Dad Khan
Forest and climate change a study how world By Mr Allah Dad Khan
11 effects on terrestrial systems
- 11. Alaska Greenland Iceland Siberia Canada Tundra N. Europe
- 13. Boreal Forest (Taiga) Canada Europe Asia S.W. U.S
- 15. Temperate Forests Four types: 1. deciduous forests 2. evergreen forests 3. mixed deciduous and evergreen 4. temperate rain forests
- 19. Grasslands
- 21. Deserts
- 22. Global Distribution of Vegetation 18,000 years ago conifers tundra taiga grassland woodland Biomes Through Time
- 23. Global Distribution of Vegetation 6,000 years ago taiga temperate deciduous woods & scrub conifers grassland desert tundra cold deciduous Biomes Through Time
- 24. Biomes Through Time Global Distribution of Vegetation - Present taiga tundra temperate deciduous grassland cold deciduous tropical R.F. warm mix