Displaying items by tag: erosion
Dirt is far from just dirt. It’s a foundation for life.
This story was originally published by The Revelator.
Look down. You may not see the soil beneath your feet as teeming with life, but it is.
Better scientific tools are helping us understand that dirt isn’t just dirt. Life in the soil includes microbes like bacteria and fungi; invertebrates such as earthworms and nematodes; plant roots; and even mammals like gophers and badgers who spend part of their time below ground.
It’s commonly said that a quarter of all the planet’s biodiversity lives in the soil, but that’s likely a vast understatement. Many species that reside there, particularly microorganisms such as viruses, bacteria, fungi and protists, aren’t yet known to science.
- the revelator
- soil type
- soil moisture
- why is soil important
- soil microbe
- soil microorganism
- nutrient cycling
- reading university
- climate change
- soil degradation
- plastic pollution
- genetically modified organism
- artificial fertilizer
- land use change
- convention on biodiversity
- soil biodiversity observation network
- global soil biodiversity initiative
- ecosystem research
- farm to fork strategy
- microbial transplants
- soil quality
- soil sealing
UT students, professors and staff scrub up for ‘creek kidney transplant’ in Knoxville
Imagine you’re a kid again. It’s a Saturday afternoon in July and after a morning full of rain the clouds begin to clear and the sun peeks out.
You run outside in your rubber rain boots to meet your friends down by the creek in your neighborhood, carrying a large bucket, boots squeaking as you go.
Once there, you and your friends carefully wade down into the water, curious to see what creatures lurk beneath the surface.
Part I of this three-part series examines how the development of civilizations and rapid population growth gave rise to forest tree domestication. Parts II and III will discuss the role that the University of Tennessee’s Tree Improvement Program has played in forest sustainability by contributing to the productivity and health of Tennessee’s present and future forests.
Wood and lumber figured prominently in ancient civilizations, ranging from everyday use for warmth, cooking, and shelter to specialty uses like veneers for furniture and construction with scented woods.
No matter what continent or hemisphere, as human civilizations evolved from collections of nomad hunter-gatherers to the steel, brick, glass, and mortar cities of today, the impact on forested land proportionally increased. As villages became towns and, eventually, cities, forests were harvested in an ever-increasing radius around the population centers. Wild animals and plants were also harvested in the same manner, drastically altering ecosystems and causing massive erosion.
Nations that quickly exhausted the best trees in their limited forested lands, like ancient Egypt and Greece, met wood demands for construction or specialty products by importing wood from other nations. The then-rich forests of Lebanon and Cyprus were harvested to export timber to countries suffering from a timber famine.
- ut forestry
- tree improvement program
- history of conservation
- walnut orchard
- king artaxerxes
- roman empire
- ancient greece
- timber harvest
- agricultural experiment station
- land grant
- tennessee valley authority
- tennessee division of forestry
- budget cut
- eyvind thor
- christmas tree
- scott schlarbaum