1) ecological problem
生态学问题
1.
The ecological problems in hilly city are analyzed,and principles and methods of ecological construction are presented.
分析了山地城市面临的生态学问题,并提出了相应的生态建设原则和途径。
2) problems in ecological economics
生态经济学问题
3) ecological problems
生态问题
1.
Researches on social and economic benefits and ecological problems aroused by water transfer projects in the USA;
美国调水工程社会经济效益与生态问题研究
2.
Analysis of water resources vulnerability and ecological problems in Heihe river basin;
黑河地区水资源脆弱性及其生态问题分析
3.
In view of the existence of the current meadow severely degradation,animal population density decrease,water flow reduction and other ecological problems,it presents we must draw up environmental protection regulations for this conserve as soon as possible,establish biodiversity conservation authority institutions,carry out condomin.
通过对雾灵山国家级自然保护区的调查,研究保护区的生态沿革,分析保护区的生态功能、生态作用等生态效应,针对当前所存在的草甸严重退化、动物种群密度降低、水量减少等生态问题,提出对保护区的生态环境应尽快制定环境保护规范化,建立生物多样性保护权威机构,实行社区共管,开展科学生态旅游等措施。
5) ecological issue
生态问题
1.
Since the industrial revolution took place in 18th century, for human’s over-exploitation to the natural world, led to imbalance in the relationship between human and nature , the disturbance of natural systems, have brought about serious ecological issues.
18世纪工业革命发生以来,人类对于自然界的过度开发,导致了人与自然关系的失衡、自然系统的紊乱,从而带来了严重的生态问题。
6) ecological problem
生态问题
1.
This article probes into the present situation and perspective of the world fertilizer raw materials,the development of the mineral fertilizer production and related ecological problem
探讨世纪之交世界矿肥工业原料的现状与前景 ,矿肥工业生产的发展形势与有关的生态问
2.
After illuminating some natural and ecological problems that are existed in the course of nonpublic ownership forestry s development,the paper emphasizes some specific countermeasures to the problems.
指出中国当前非公有制林业发展中存在的自然和生态问题,在阐述和分析自然灾害影响、不规范的生产经营活动而导致的严重水土流失、纯林造成的生物多样性缺乏和一些引种树种对周边生态环境的负面影响、无节制地使用农药和化肥而引起的生态环境破坏、大量的非公有制林产加工小企业对生态环境的污染等自然和生态问题的基础上,着重研究解决这些自然和生态问题的对策,即通过宣传教育,促使非公有制林业经营者在发展经济的同时兼顾生态保护,并通过采取约束和激励相结合的方式解决已出现的生态问题。
补充资料：昆虫个体生态学(见昆虫生态学)
昆虫个体生态学(见昆虫生态学)
昆虫个体生态学见昆虫生态学
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条