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林业资源管理 ›› 2015›› Issue (4): 39-44.doi: 10.13466/j.cnki.lyzygl.2015.04.008

• 科学研究 • 上一篇    下一篇

思茅松天然林乔木生物量空间分异研究

徐婷婷, 舒清态, 欧光龙, 胥辉   

  1. 西南林业大学 林学院,昆明 650224
  • 出版日期:2015-08-28 发布日期:2020-12-01
  • 通讯作者: 胥辉(1960-),男,博士,教授。Email:zyxy213@126.com
  • 作者简介:徐婷婷(1990-),女,云南曲靖人,在读硕士,主要研究方向森林测计和林业3S技术应用。Email:459262257@qq.com
  • 基金资助:
    国家林业局林业公益性行业科研专项(201404309);国家自然科学基金(31460194)

Spatial Differentiation Characteristics of Pinus kesiya var. Based on Forest Resource Inventory Data for Management

XU Tingting, SHU Qingtai, OU Guanglong, XU Hui   

  1. Southwest Forestry University,Kunming 650224,China
  • Online:2015-08-28 Published:2020-12-01

摘要: 以景谷县思茅松天然乔木林为研究对象,以2006年森林资源二类调查数据和DEM为信息源,在前期实测120株思茅松单木生物量建立思茅松单木生物量估测模型基础上,对研究区思茅松天然林乔木生物量的空间分异特征进行分析。研究结果表明思茅松单木生物量模型以幂函数模型精度最高,决定系数R2=0.952 8,估测精度p=85.4%,均方根误差RMSE=14.81kg,可用来进行思茅松天然林生物量估测;在空间分异上,研究区思茅松天然林乔木生物量集中分布于海拔1 000~2 000 m,在海拔1 500~2 000 m时生物量密度最大,为73.33 t/hm2;坡度对生物量影响主要集中在陡坡、缓坡和斜坡上,其中,在急坡上生物量密度达到最大,为76.17 t/hm2;生物量在各个坡向上的分布相对较均匀,生物量密度在阴坡上最大,为74.13 t/hm2,在阳坡上最小,为70.42 t/hm2

关键词: 思茅松, 生物量, 海拔, 坡度, 坡向

Abstract: The forest resource inventory data for management in Jinggu county in 2006 were used as the information source.The biomass and related factors of standard simao pine were used to build a model and the biomass of simao pine stand in Jinggu county was analyzed.The results show that the power function model has the highest precision,R2=0.9528,p=85.4%,RMSE=14.81(kg),this model can be used to estimate the simao natural forest biomass.Simao pine trees in the study area of natural forest biomass concentrated at the altitude of 1000~2000m,and the biomass density is the highest at the altitude of 1500~2000m with 73.33t/hm2;Simao pine trees natural forest biomass mainly concentrated on steep slopes,gentle slopes and slopes,in acute slope biomass density reaches a maximum of 76.17 t/hm2.Distribution of biomass in each upward slope is relatively uniform,biomass density on the shady slopes is the highest with 74.13 t/hm2,on sunny slope it’s the lowest with 70.42 t/hm2.

Key words: simao pine, biomass, altitude, slope, aspect

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