摘要
为了对御道口沙地樟子松人工林密度效应进行量化比较,采用统计学及种群生态学方法对御道口沙地樟子松人工林自疏规律进行建模研究,探讨了2种不同自疏规律模型的构建方法并进行了对比分析。结果表明:通过比较Reineke密度模型和Yoda模型的预测值与实际值有一定的差异。Reineke模型模拟的结果与实际结果对比的平均误差为0.2%,Yoda模型与实际结果对比的平均误差为22.1%,Reineke自然稀疏模型的预测更接近实测值。该结果可以为沙地樟子松人工林在御道口地区的经营与管理提供参考。
The method of population ecology was used to study the self-thinning mechanism of Pinus sylvestris var.monglica.plantation in Yudaokou sandy land.The construction methods of two different self-thinning models were systematically studied and compared.The results showed that the maximum density predicted by the Reineke density model and the Yoda model was different in the measured maximum density of Pinus sylvestris var.monglica.The prediction of the Reineke density model was closer to the measured value.
作者
刘雪莹
谷建才
LIU Xueying;GU Jiancai(Collage of Forestry,Hebei Agricultural University,Baoding 071000,China)
出处
《林业与生态科学》
2019年第1期24-27,共4页
Forestry and Ecological Sciences
基金
国家重点研发计划课题(2016YFC0500802)
关键词
御道口
樟子松
自疏规律模型
Yudaokou
Pinus sylvestris var.monglica
self-thinning model
