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自2000年京津风沙源治理工程启动以来,河北省宣化县林业局以“防止水土流失,涵养保护水源,构建京津绿色屏障”为目
Since the start of the Beijing-Tianjin sandstorm source project in 2000, the Xuanhua County Forestry Bureau of Hebei Province has taken “preventing soil and water loss, conserving and protecting water sources and building a Beijing-Tianjin green barrier”