生态灾害是指由于生态系统平衡改变所带来的各种始未料及的不良后果。与生态冲击（ecological backlash）、生态报复（ecological boomerang）、自然包袱（natural reprisal）的含义相似。
自然生态平衡遭到严重破坏，人为诱发的地质灾害发生越来越频繁。
The ecological balance of natural is damaged seriously, and human-induced geological disasters are increasingly frequently.
我国生态环境问题主要是由于生产的外部不经济、正式制度安排的缺陷和各种灾害造成的。
In China the eco-environment problems are derived from the external economies and normal institutional defects and some other natural disasters.
中国是一个气候条件复杂、生态环境脆弱、自然灾害频发、易受气候变化影响的国家。
China, with complex climatic conditions, fragile ecological environment and frequent natural disasters, is vulnerable to climate change.
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