中文摘要：

木兰围场保护区是冀北山地森林保护最好的区域，主要为落叶阔叶林及其垂直分布类型所组成；往北，逐渐向草原过渡。它对京津地区直接起到防风固沙、阻挡沙源的作用，保证天津引滦入津水源的需求，具有重要的生物多样性保护和持续利用的价值。拟探讨一下有关这些方面的一些问题，供有关方面参考。

英文摘要：

Mulanweichang reserve is a best region of forest conservation in northern Hebei mountain, mainly being composed of deciduous broadleaf forests and their vertical distributional types; going northward, gradually transiting to the steppe region. It can directly play role in preventing sands blown by the wind and resisting sands from arid area for B eijng and Tianjin, and guarantees water requirement of channel water from Luarthe River into Tianjin city. It may be seen that it has an important values in biodiversity conservation and sustainable use. The paper simply deals with some problems of these aspects for related departments.