摘要
森林的蓄积量与生物量评估是森林监测中的重要内容。我国有关森林蓄积方面的资料较为丰富,但是生物量方面的资料较少,因此森林蓄积量与生物量之间转换模型的研究具有重要意义。文中依据在塔里木河下游所伐倒的40棵胡杨样品,首先利用微积分模拟计算了蓄积量,其次用称重法测得胡杨的生物量,最后利用3个模型将胡杨的蓄积量与生物量的关系进行拟合,并将这3个模型的精确度进行对比分析。得出:B=c Vd模型的模拟效果最好,所建立的模型为:B=291.459V1.183。
It is an important content in monitoring forest to evaluate the volume and biomass of forest. There is an abundant data in forest stock volume,but the data of biomass is seldom. As a result,it will be of great importance in researching the alternative model between forest stock volume and biomass. In this study,we gathered40 samples of Populus euphratica which were cut down. Firstly,we did some analog computation of volume by calculus; secondly,we gained the biomass of Populus euphratica using weight method; lastly,we fitted the relationship between volume and biomass taking advantage of 3 models. What＇s more,we did contrastive analysis on accuracy among the 3 models. Then we arrived at the result： the simulate effect of B = c Vdis the best,with the model of B = 291. 459V^1. 183.
出处
《干旱区资源与环境》
CSSCI
CSCD
北大核心
2016年第5期175-179,共5页
Journal of Arid Land Resources and Environment
基金
新疆维吾尔自治区研究生科研创新项目(XJGRI2015090)
国家自然科学基金(41171427
41471099
31370551
31400466)
中国科学院"西部之光"人才培养计划(XBBS-2014-13)
荒漠与绿洲生态国家重点实验室自主课题项目资助
关键词
生物量
蓄积量
关系模型
胡杨
Populus euphratica
biomass
volume
Relational model
