How do we use land?
Name two ways humans use land ?
What is clear cutting
cut down and remove every tree from (an area).
Erosion
Forces such as wind ,water, and ice move particles of rock or soil
What is sustainability?
Sustainability is the practice of managing resources to meet present needs without compromising the ability of future generations to meet theirs, balancing environmental, social, and economic health.
What is mining?
Mining is the extraction of valuable minerals, metals, and geological materials
what is selective cutting?
the cutting down of selected trees in a forest so that growth of other trees is not affected
Why is it bad to plant the same crop in the same place over and over again.
It use more nutrients from the soil than decomposer can replace
What is land reclamation?
Restoring the land to a more productive state.
Why is agriculture important?
It provide food for people to eat.
Increase Carbon Dioxide
How can adding to much fertilizer in the soil affect the ecosystem ?
Adding Fertilizer can cause runoff into near by bodies of water
What can the government do to help with forest sustainability?
Make laws to cut a certain of trees.
It can remove nutrient from soil
How do roots prevent erosion and flooding?
It absorbs rainwater and hold soil together
How many year does it take for soil to form
Hundreds of years
Which option is harder ?
Bringing back damaged land from scratch
or
Conserve the resources before damage
Bringing back damaged land from scratch
Give me 5 examples of human land development
Pass/faill
What is a sustainable practice for maintaining trees in our environment?
If you cut a tree plant a new one , and selective cutting
What leads to desertification?
Give a 3 examples of why people cut down so many trees?
Pass/Fail