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。
And these measurements can effectively reduce and prevent the occurrence of wind and sand damage.
这些措施能有效地减小和防止风沙灾害的发生。
Yongding River sand land is the largest area of wind-sand land sand and is one of the most severe wind sand damage region in Beijing, Which has important influence to eco-entironment in Beijng.
永定河沙地是北京市面积最大的风沙化土地和风沙危害最严重的地区之一，对北京市的生态环境有重要影响。
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