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conversion of cropland to forest and grassland
释义
conversion of cropland to forest and grassland
Encyclopedia
农学
水土保持林草措施
释
conversion of cropland to forest and grassland
退耕还林还草
从保护和改善生态环境出发,将易造成严重水土流失的坡耕地、易造成严重土地荒漠化及生态地位重要且粮食产量低而不稳的耕地,有计划、分步骤地停止耕种,因地制宜地造林种草,恢复林草植被。
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topological metal
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