一、研究目的本文试图通过黑龙江省森林防护效益的计算,来研究确定适宜的森林覆被率的计量指标,同时探讨森林防护效益计量研究的方法。二、研究方法目前国内外研究森林防护效益计量,主要是采取定位观测的方法。这对于确切的观察森林产生某些效能的过程和机理是必不可少的。而要研究森林宏观效益,则要设置大量的台站,要做长期的观测,这是比较困难的。为适应 First, the purpose of this study This paper attempts to calculate the effectiveness of forest protection in Heilongjiang Province, to determine the appropriate measurement of forest cover rate indicators, and to explore ways to measure the effectiveness of forest protection. Second, research methods Currently at home and abroad to study the effectiveness of forest protection measures, mainly to take the method of positioning observations. This is essential for an accurate observation of the processes and mechanisms by which forests produce certain efficiencies. To study the macroeconomic benefits of forests, we have to set up a large number of stations. It is more difficult to conduct long-term observations. To adapt