Agricultural & California Resources Model Agricultural Core Curriculum: Supplement University of California, Davis 131.T 1 Major Watersheds of California The following watersheds are the largest in California and the most significant to agriculture. 1. San Joaquin Basin 2. Sacramento Basin 3. North Coast 4. Central & South Coast 5. Imperial Valley Drainage

Agricultural & California Resources Model Agricultural Core Curriculum: Supplement University of California, Davis 131.T 2 Forests Used as Watersheds The forest plays a vital role in providing us with pure, clean water. 1. Vegetation of the forest prevents erosion. 2. Forest litter and soils filter water and improve its quality. 3. Forests shade shallow mountain streams and lakes, keeping them cool and able to support a larger variety of fish and wildlife. Redwood Sequoia sempervirens

Agricultural & California Resources Model Agricultural Core Curriculum: Supplement University of California, Davis 131.T 3 Forests as Timber Resources California’s forest provide a large amount of timber. The state is divided into three major timber producing areas : Redwood region: Douglas Fir, Western Hemlock Sierra region: Douglas Fir, White Fir, Ponderosa Pine, Jeffery Pine, Sugar Pine, & Incense Cedar Mountain region: Douglas Fir, Ponderosa Pine, White Fir, Sugar Pine, Red Fir, & Incense Cedar Douglas Fir Pseudotsuga menziesii

Agricultural & California Resources Model Agricultural Core Curriculum: Supplement University of California, Davis 131.T 4 Management of Natural Resources It is the agriculturalist’s responsibility to carefully manage natural resources. This responsibility extends far beyond farm needs and effects on profitability. Consider how the public is affected by the following: Negative effects of poor farm resource management. Pesticide or fertilizer residue in groundwater. Air pollution. Siltation in streams and rivers.

Agricultural & California Resources Model Agricultural Core Curriculum: Supplement University of California, Davis 131.T 5 Management of Natural Resources (cont’d.) Consider how the public is affected by the following: Positive effects of good farm resource management. High quality reservoirs of water. Improved wildlife habitat. Improved pasture and rangeland. Improved scenic quality to landscape.