通过长白落叶松播种苗和移植苗分级造林成活率和生长量的比较研究，建立了苗木质量与造林效果的关系。
The relationship between seedling quality and outplanting performances was established through comparing the survival rate and the growth of seedlings and transplanted seedlings between grades.
通过长白落叶松播种苗和移植苗分级造林成活率和生长量的比较研究，建立了苗木质量与造林效果的关系。
The relationship between seedling quality and outplanting performances was established through comparing the survival rate and the growth of seedlings and transplanted seedlings between grades.
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