1) disaster preventing benefit
防灾效益
2) evaluation of the benefits of disaster prevention and control
防灾效益评估
3) net benefit of flood control and disaster mitigation
防洪减灾净效益
4) Problems with Evaluations of the Benefits in Disaster Prevention and Control
防灾效益评估问题
6) protective benefit
防护效益
1.
The results showed that the preserved rate, the growth increment of height and diameter of mixed forest were superior to the pure of Casuarina;the protective benefits of mixed forest were obviously larger than that of the pure.
为改变沿海地区造林树种单一状况,确保防护林生态系统稳定性,1992年在福建东山县赤山林场开展木麻黄大叶相思混交林和木麻黄纯林对比试验,研究结果表明,混交林中木麻黄保存率、树高、胸径生长量均大大超过木麻黄纯林;混交林防护效益明显大于木麻黄纯林;混交林林地土壤肥力高,改土效果显著。
补充资料：城市防灾
为抵御和减轻各种自然灾害和人为灾害及由此而引起的次生灾害，对城市居民生命财产和各项工程设施造成危害的损失所采取的各种预防措施。
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