首页|内蒙古地区天然白桦林碳密度预测模型的构建

内蒙古地区天然白桦林碳密度预测模型的构建

扫码查看
为了对天然白桦林碳储量预测提供方法,以内蒙古地区198块天然白桦林样地实测数据为材料,建立了碳密度预测模型,并进行了模型拟合优度检验,选出最优的内蒙古地区天然白桦林碳密度预测模型。结果表明:该模型为二元线性模型,决定系数R2为0。568,均方根误差RMSE为12。515 t·hm-2,平均偏差ME为0。005 t·hm-2,平均绝对偏差为9。435 t·hm-2,准确率Acc为0。776。该二元线性模型能更好模拟碳密度与各个因子之间的关系,估算精度更高,可为估测森林碳储量提供参考依据。
Construction of Carbon Density Prediction Model of Natural Birch Forest in Inner Mongolia
In order to provide a method for predicting the carbon storage of natural birch forest,the carbon density prediction model was established based on the measured data of 198 natural birch forest plots in Inner Mongolia,and the goodness test of the model fitting was carried out to select the optimal carbon density prediction model of natural birch forest in Inner Mongolia.The results showed that the model was a binary linear model,the determination coef-ficient R2 was 0.568,the root mean square error RMSE was 12.515 t·hm-2,the average deviation ME was 0.005 t·hm-2,the average absolute deviation was 9.435 t·hm-2,and the accuracy rate Acc was 0.776.The binary linear model can better simulate the relationship between carbon density and various factors,and the estimation accuracy is higher,which can provide a reference for estimating forest carbon storage.

natural forestbirchcarbon storagecarbon density model

王维芳、孙钰、戴亚维

展开 >

东北林业大学,黑龙江哈尔滨 150040

天然林 白桦 碳储量 碳密度模型

东北林业大学大学生创新训练项目

202310225616

2024

防护林科技
黑龙江省森林与环境科学研究院 国家林业局三北防护林建设局 黑龙江省三北林业建设指导站

防护林科技

影响因子:0.264
ISSN:1005-5215
年,卷(期):2024.(5)