ecological race 中文意思是什麼
ecological race
解釋
生態品種- ecological : adj. 生態學的。adv. -ly
- race : n 1 競賽；賽跑；賽艇；賽馬；〈pl 〉賽馬會，跑馬會；競賽；疾走。2 路程，行程；經歷，人生路程，一輩...
-
Firstly, the people preferred the economic benefit of forest to the ecological benefit in the past old planned economy system. secondly, the resource of natural evergreen broad - leaved forest is destroyed and increasingly exhausted because of the population increment and the science and technology advancement. thirdly, we suffer from a gre at dread of the frequent natural - calamities and the continual deteriorated environment people began to be aware of the importance of the natural evergreen broad - leaved forest to human race and the protection for it
在我國，生態保護小區的建立有其深刻的歷史背景： （ 1 ）舊的計劃經濟體制偏重於對森林木材採伐加工的利用，甚至盲目地追求森林採伐加工的經濟利潤，忽視了森林的最主要生態功能，造成大面積天然闊葉林遭受破壞； （ 2 ）人口增長引發毀林開荒，科技水平提高引起木業的飛速發展，這些導致天然闊葉林資源日益枯竭； （ 3 ）頻繁自然災害、不斷惡化的環境使人類蒙受巨大經濟、社會損失。
分享友人