一、热带林生长、收获量的预测热带林有许多复杂的特点,如板根的处理、树高测定以及复杂多样的树种鉴定困难等等。所以需要研究一套统一的测定方法. 通过对热带60个国家地面调查方法统计的结果,非州和亚州太平洋各国多采用小区 First, the tropical forest growth, the yield forecast Tropical forest has many complex features, such as the processing of the root, tree height determination and the complexity of a variety of species identification difficulties and so on. Therefore, we need to study a set of uniform measurement methods.According to the statistical results of ground survey methods in 60 tropical countries, non-state and Asian Pacific countries use more cells