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黑龙江省松花江地区在水土保持工作中,及时总结以户承包治理小流域的经验,作出了“以治理为基础的开发性承包的几项规
In Songhua River area of Heilongjiang Province, in the work of soil and water conservation, summed up in a timely manner the experience of household contracting and harnessing small watersheds, and made "a few rules of governance-based development contracting