Pearson Environmental Science Ch 11 - Forestry Management Flashcards

8697817674	resource management	managing of resource harvesting so that resources are not depleted; includes maximum sustainable yield, ecosystem-based approach, and adaptive managment approach	0
8697828849	Renewable resources	soil, water, timber, wild animals	1
8697837636	sustainability	goal of resource management - balancing needs of people and ecosystems	2
8697871013	maximum sustainable yield	harvest maximum amount of resources without reducing the amount of future harvests	3
8697877921	ecosystem-based approach	harvest resources in ways that minimize impact on the ecosystems	4
8697883644	adaptive management	scientifically testing and collecting data to determine best ways to harvest - constantly assessing and changing	5
8697927509	ecological value	prevent soil erosion, regulate water cycle by preventing runoff, purifying water, releasing oxygen, store carbon to moderate climate	6
8697936729	economic values	fuel houses, produce wood for shelter, built ships, made paper	7
8697942695	medicinal values	fruits, nuts, spices, and herbs; treatment for Hodgkins disease, leukemia and other cancers	8
8697951528	clear-cutting	all the trees in an area are cut at once	9
8697986659	seed-tree approach	small numbers of mature and healthy seed-producing trees are left standing to reseed the area	10
8697993943	shelterwood approach	small numbers of mature trees are left to provide shelter for seedlings as they grow	11
8698005593	selection systems	only some trees are cut at once - results in uneven aged stands of regrown trees; more expensive than clear cutting	12
8698021847	deforestation	clearing of a forest without replacement; land is then used for another purpose (commercial; residential; farmland)	13
8698043324	Negative impacts of deforestastion	Decreased soil fertility from erosion, Runoff of eroded soil into aquatic systems, Accelerated flooding, Premature extinction of species with specialized niches, Loss of habitat for migratory species such as birds and butterflies, Regional climate change from extensive clearing, Release of CO2 into atmosphere from burning and tree decay	14
8698060269	rainforests & arid forests	greatest impact on biodiversity	15