aThe great northern forest—the boreal forest—is home to a unique ecosystem of animals and plants. It covers one-third of the earth’s total forest area and is home to so many birds that it is known as “North America’s bird nursery.” The forest is a treasure trove of riches, but...
The boreal forest is the largest forest region in Canada, occupying approximately 315 mill. ha. Within this forest region long-term average annual area burned is 1.3 mill. ha, with extreme fire yearsbeing common, covering up to 7 million ha in a single fire season. Only 2% to 3% of ...
The boreal forest is vast. One of the largest ecosystems in the world, it encircles the globe’s northern reaches, from Europe to Russia to Canada.More than half of Ontario’s forest cover is boreal forest. The word “boreal” means northern, so climate is a big factor in how this ecos...
根据"The largest boreal forest is in Russia,Europe."可知最大的北方针叶林在欧洲的俄罗斯。故选C。47.细节理解题。根据"These forests cover only a tenth of the earth,yet they are home to more kinds of plants and animals than any other places"可知对植物和动物来说最好的森林是热带雨林。故选D...
B. Temperate forest.C. Boreal forest.D. Mountain forests.( )3. When do the tree leaves in temperate forests start to fall off?A. When it's hot.B. When it's warmC. When it's coolD. When it's cold( )4. Where is the largest boreal forest?A. In China.B. In Canada.C. In ...
The dilemma is how to continue resource extraction from the forest yet ensure that wildlife populations do not become endangered. An important ecosystem process in the boreal forest is forest fire and the forestry industry has traditionally argued that clear cutting simulates forest fire by creating ...
Large areas of Siberia’s taiga have been harvested for lumber since the collapse of the Soviet Union. In Canada, less than eight percent of the Boreal forest is protected from development and more than 50% has been allocated to logging companies for cutting....
This is the boreal forest(北方森林). The largest forest on Earth. 750 billion trees smothered by snow throughout the winter. This is the northermost boundary of an extraordinary world.Boreal Forest I‘m standing at the edge of the Arctic Circle(北极圈
解析 B。解析:先行词是“the forest”,定语从句是“trees are mostly conifers”。这里需要表示所属关系,即森林的树,whose有“……的”之意,可表示先行词和从句中名词的所属关系。which只能单纯指代先行词,that在这种情况下不适用,what不能引导定语从句,所以选B。
The ___ is known for its long, cold winters and short, warm summers. A. boreal forest climate area B. oceanic climate area C. desert climate area D. Savannah climate area 相关知识点: 试题来源: 解析 A。解析:北方针叶林气候区以漫长寒冷的冬季和短促温暖的夏季而闻名。选项B海洋性气候区终年...