【摘要】 通过对大通县义务植树情况的调查分析,发现大通县的义务植树方面有经验教训,同时存在新问题,并提出解决这些问题的措施和建议。更多还原

【Abstract】 The conditions of all people voluntary forestation in Datong were invested and analyzed.Some experiments and lessons were be found on voluntary forestation.There were some problems at same time.Some measures and suggestions were offered for solving them.更多还原