UNITED-STATES FEDERAL-POLICY ON OLD-GROWTH FORESTS IN ITS INSTITUTIONAL SETTING-BALMER-DG-NORTHWEST ENVIRON JBalmer, Donald G. 1990. United States Federal Policy on Old-Growth Forests in Its Institutional Setting. Northwest Environmental Journal 6:331-60....
Ⅲ.语法填空Spotted owls(斑点猫头鹰) live in old-growth forests in the western United States and act as an indicator species, a measure of the biological health of _ 1_ area, for public-land management.The species is 2 (particular) allergic to logging,and when the northern subspecies of spo...
Most old growth forests in the Lower 48 states were logged during the past two centuries. Previous protections for older trees have come indirectly, such as the “roadless rule” adopted under former President Bill Clinton in 2001 that blocked logging on about a quarter of ...
1III. 语法填空Spotted owls(斑点猫头鹰) live in old-growth forests in the western United States and act as an indicator species, a measure of the biological health of 1 area, for public-land management.The species is 2 (particular) allergic to logging,and when the northern subspecies of spot...
old growth- forest or woodland having a mature or overly mature ecosystem more or less uninfluenced by human activity virgin forest forest,woods,wood- the trees and other plants in a large densely wooded area Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University,...
They argue that once old - growth forests are gone, the unique ecological functions they provide, such as water purification and carbon sequestration, are also lost.” 可知,一些人主张保护原始森林是因为它们有独特的生态功能,答案选 B。A 选项 “容易重新造林” 与原文不符;C 选项 “没有文化价值”...
www.nature.com/scientificreports OPEN Old-growth beech forests in Germany as cool islands in a warming landscape Yojana Adhikari1, Nadine Bachstein1, Charlotte Gohr1,2, Jeanette S. Blumröder1, Caroline Meier1 & Pierre L. Ibisch1 The climate crisis seriously threatens ...
2012. Governing old-growth forests: the interdepen- dence of actors in Great Bear Rainforest in British Columbia. Soc Nat Res Int J. 25:900-914.Raitio, Kaisa, and Heli Saarikoski. 2012. "Governing Old-Growth Forests: The Interde- pendence of Actors in Great Bear Rainforest in British...
Mediterranean old-growth forests: The role of forest type in the conservation of epiphytic lichens The present study investigated the effect of forest type on epiphytic lichen communities and selected indicator species, useful for long-term monitoring pr......
Old Growth Urban Forests (Springer Briefs in Ecology)doi:10.1080/03071375.2012.729374Ian D. RotherhamArboricultural Journal: The International Journal of Urban Forestry