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1988年9月,大杨树林业局在古里,胡得气、宜里、卧罗河、四平山五个林场的施业区内,兴办了17个家庭林场。该局与这些家庭林场签订了5年经营合同。
In September 1988, Daya Forestry Bureau set up 17 family tree farms in the operation areas of Guli, Hu Deqi, Yili, Woluohe and Siping Mountain. The council signed a five-year contract with these family farms.