Barrons AP Environmental Science

Alley Cropping (Agroforestry) A method of planting crops in strips with rows of trees or shrubs on e ...

Crop Rotation Schedule Field 1 Field 2 Field 3 1st Year Wheat and rye Oats and barley Fallow 2nd Year Fallow Wheat ...

Figure 7.3 Example of interplanting Locally Grown—Farmers’ Markets Farmers’ markets feature foods sold directly by ...

and genetically modified organisms. Plantation A commercial tropical agriculture system that is essentially export ...

Agricultural productivity implies greater output with less input, and it also implies a more e ...

In addition, ingredients in organic fertilizers are naturally biodegradable. Genetically Modified (GM) Crops Between ...

Less spoilage. May harm beneficial insects. Faster growth which may mean greater productivity, resulting in lower ...

■ Diversify farms to reduce economic risks. ■ Rotate crops to enhance yields and facilitate pest management. ■ ...

Public education to inform consumers and those involved in policy making about the environmental costs and benefits ...

of people working in factories instead of in agricultural fields. Factors that created the Second Ag ...

CONTROLLING PESTS Pesticides can be used to control pests, but their use has drawbacks. Integrated pest managemen ...

males then compete with wild males to mate, ultimately reducing the next generation’s population ...

environment, to be capable of long-range transport, bioaccumulate in human and animal tissue, biomagnify in ...

FUMIGANTS Fumigants are used to sterilize soil and prevent pest infestation of stored grain. INORGANIC Inorganic ...

persistent (biodegradable). Reduce labor costs. Inefficiency—only 5% of pesticides reach a pest. Agriculture is mo ...

■ Pests becoming resistant to a particular pesticide (genetic resistance—i.e., an inherited change in the gen ...

Forest Management Forests cover about one-third of all land surface worldwide. Most—80%—of these forests ...

Mitigation means to alleviate in force or intensity. Examples include: ■ Making sure that the forest-deri ...

of Agriculture and consists of 155 national forests and 22 grasslands. The Forest Service manages public lands ...

include: ■ Providing wildlife habitats ■ Carbon sinks ■ Affecting local climate patterns ■ Purifying air and water ■ Red ...