1. fresh weight and dry weight belowground decreased increasingly, and the differences were not significant. 地下部鲜重和干重呈逐渐降低趋势，但各处理之间差异不显著。
2. There was positive correlation between aboveground biomass and heating field, while there was not significant relationship between belowground biomass and heating field. 地上生物量季节变化与热源强度具有显著的正相关关系，而地下生物量季节变化与热源强度关系不明显。
3. Further more, the research of root biomass and its distribution in succession can provide the new theoretic bases for forest dynamics, also maybe the one focus of the belowground ecology. 在演替过程中，根系生物量及其分布动态的研究，可以为森林群落动态学提供新的理论基础，是未来地下生态学研究的焦点之一。
英英解释
adj.
1. under the level of the ground
2. underneath the ground
