【摘要】 白桦种源和白桦繁殖是近年来白桦研究的重点。关于白桦种源 ,各理论的观点基本一致 ;而对于白桦繁殖 ,一直没有一个经济有效的方法。本文主要对国内外白桦的分布、白桦种源的研究现状 ,以及白桦种子储藏、白桦繁殖的研究方法进行了综述 ,并就目前这两个方面存在的问题提出了进一步研究的方向更多还原

【Abstract】 Seeds resource and propagation of Betula platyphylla Suk. are important in Betula platyphylla Suk. studies in recent years. All theoretics are almost accord in Seeds Resource of Betula platyphylla Suk.. We had not a economical and efficiency method to propagate Betula platyphylla Suk. now .This paper made a brief review on Betula platyphylla Suk. distributing and seeds resource, and on research method on storage and propagation of Betula platyphylla Suk..And more ways were brought forward to study Betula platyphylla Suk. on these problems in existence of the two parts.更多还原