Download PDF by Julie Kerr Casper: Agriculture: The Food We Grow and Animals We Raise (Natural

By Julie Kerr Casper

ISBN-10: 0816063524

ISBN-13: 9780816063529

ISBN-10: 1438105541

ISBN-13: 9781438105543

Explores the most very important makes use of of the land: the construction of agriculture. This publication is helping readers study that farms and ranches produce even more than foodstuff; yet scientists, farmers, ranchers, and different landowners have not solved conservation difficulties - but.

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Additional info for Agriculture: The Food We Grow and Animals We Raise (Natural Resources)

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For example, if humans do not take care of the quality of our water today, then 10 years from now it might be too polluted to use. If farmers overfarm the land and make the soil worthless, future generations will not be able to farm it. 25 26 agriculture Farmers today must meet the needs of the present without compromising the ability of future generations to meet their own needs. Stewardship of the land and its natural resources involves managing it so that the same resources are there for the long term.

Us/ate/ag/ concepts of agriculture acres of once healthy, productive rangelands, forested lands, and riparian (river) areas have been overrun by noxious or invasive weeds. Weeds can dominate and cause permanent damage to natural plant communities. Scientists and land managers realize the seriousness of this problem and understand that, if weeds are not controlled, they can damage the health of the land. This problem is especially pronounced in the western regions of the United States. Because so much ranching and grazing of livestock occurs on private ranches and public lands in the West, weeds pose an increased threat to the health of the land there.

The opposite of this is a nonrenewable resource—a resource that cannot be replenished (once it is gone, it is gone for good). For practical applications, some scientists consider a renewable resource one that can be replenished within one generation (approximately 20 to 30 years) and a nonrenewable resource one that cannot be replenished in one generation. 39 40 agriculture For many classes of resources, it is easy to determine which resources are renewable and which are not. For example, with energy resources, fossil fuels (oil, petroleum) and coal are not renewable because they took millions of years to form.

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Agriculture: The Food We Grow and Animals We Raise (Natural Resources) by Julie Kerr Casper


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