摘要
以云南省临沧市膏桐种植区的灌木为研究对象,分别以D、H及D2H作为自变量,利用幂函数方程拟合灌木的生物量模型。结果表明,幂函数方程能较好地拟合研究区灌木生物量模型,用D2H复合因子拟合的效果较好,地上部分生物量模型估测效果优于地下部分。根据模型精度检验结果,模型对研究区内总生物量的拟合效果较好,用于研究区总生物量的估测较为准确。
Taking the shrub communities at Jatropha curcas growing areas in Lincang of Yunnan province as the study materials, using D （basal diameter）, H （height） and D2H as the independent variables, the biomass mod- els were built through the exponential function equation. The results showed that the biomass of shrub communities could be well expressed by an exponential function. Using the compound factor namely D2H as the variable was good for biomass estimation. As far as the estimation effect was concerned, above-ground biomass models were bet- ter than under-ground models. Based on the accuracy check, it was concluded that the models built could well ex- press the total biomass, and those models might be used for calculating the shrub biomass in the study area.
出处
《西部林业科学》
CAS
北大核心
2012年第6期53-57,共5页
Journal of West China Forestry Science
基金
国家“十一五”重大科技支撑计划课题(No.2007BAD32B02)
中国绿色碳基金云南省临沧市膏桐能源林碳汇计量与监测项目
关键词
生物量
模型
灌木
临沧
biomass
model
shrub
Lincang city
