The method for estimating economical loss of forest fire calamity was also made according to some relative information.
提出了森林火灾灾害等级，它与森林火灾级是不同的两个概念，它反映了森林火灾的经济损失情况。
Wind-sand damage is a major natural calamity affected agricultural production in the HexiCnrridor. A main measure to administer wind-sand damage is afforestation of protection forest sys-tem.
风沙危害是影响河西走廊农业生产的主要自然灾害。治理风沙危害的主要措施是营造防护林体系。
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