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在推广马占相思造林过程中，发现马占相思林中一天然杂种（暂名“莞屏一号”），它速生、耐寒、抗病、耐贫瘠，是一个增产潜力大的造林阔叶树种。
During the promotion of Acacia mangium plantation, a natural hybrid (tentatively named “Guanping No.1”) was found in Acacia mangium forest. It is fast-growing, cold-tolerant, disease-resistant and barren-resistant.