摘要
研究了松嫩草原羊草可燃物含水率的变化规律．结果表明，在枯死过程中，植物含水率呈下降趋势，10月末达到此期的最低值，为30％；在枯草期，植物含水率变化不显著，在10％波动。雨后羊草可燃物食水率升高，但经过7～8h就恢复到雨前水平．另外，可燃物含水率的日变化、雨后可燃物含水率的变化与气象因子之间具有一定的相关关系．
The changing pattern of Aneurolepidium chinense fuel moisture was studied in Songnen plain. In the process of withering, there was a trend for plant moisture to descend,by the end of October the plant moisture attained the minimum value (30% ) in this period;in litter period, there was an insignificant change in plant moisture (around 10% ). The post-rainfall moisture of Aneurolepidium chinense fuel went up, while restored the pre-rainfall level after 7 ~ 8 hours. In addition, there was a certain correlation among the diurnal change of fuel moisture, the change in post-rainfall fuel moisture, and climatic factors.
出处
《东北师大学报（自然科学版）》
CAS
CSCD
1999年第4期105-110,共6页
Journal of Northeast Normal University(Natural Science Edition)
基金
农业部"九五"重点科技项目
关键词
羊草
可燃物
含水率
松嫩草原
日变化
Aneurolepidium chinense
fuel
moisture
changing pattern
Songnen plain
