本课题系国家自然科学基金项目,其初始阶段主要任务是数据采集工作.自开题以来,课题组同志先后走访了十五个部委,商讨委托数据采集事宜.截止目前,十三个部委数据采集所需表格已全部寄去,采集工作正在进行,少部分单位已完成采集任务,寄回了数据表.对全国各省区的数据采集工作,课题组同志利用各种渠道进行了信函联系.现在又与全 The subject of the National Natural Science Foundation of China, the initial stage of its main task is the data collection work.Since the opening, comrades of the research group has visited 15 ministries and commissions to discuss commissioned data collection matters.Up to now, 13 ministries and data collection The form has been sent to all, the collection work is in progress, a small number of units have completed the collection task, sent back the data sheet. Provinces and autonomous regions of the data collection work, task group comrades use various channels for correspondence. all