详细信息
文献类型:期刊文献
中文题名:白刺灌丛沙包生物量的预测模型
英文题名:Biomass Forcast Models of Nitraria Tangutorum Shrub in Sand Dune
作者:贾宝全[1] 蔡体久[2] 高志海[3] 丁峰[3] 张国忠[3]
第一作者:贾宝全
机构:[1]中国林业科学研究院林业研究所;[2]北京林业大学;[3]甘肃省治沙研究所
年份:2002
卷号:16
期号:1
起止页码:96-99
中文期刊名:干旱区资源与环境
外文期刊名:Journal of Arid Land Resources and Environment
收录:CSCD:【CSCD2011_2012】;CSSCI:【CSSCI2000_2002】;
基金:国家自然科学基金 ( 30 0 70 6 0 1;39990 490 )研究成果
语种:中文
中文关键词:白刺;灌丛沙包;生物量;预测模型;民勤县;固沙灌木植物
外文关键词:Nitraria tangutorum,shrub sand dune, biomass, forecast model, minqin
分类号:S727.23;S775
摘要:本文以甘肃省民勤绿洲外的唐古特白刺 ( Nitratria tangutorum)灌丛沙包为例 ,利用野外便于测定的灌丛沙包长 ( X1)、宽 ( X2 )、高 ( X3 )等指标 ,以线性回归方法 ,分别对白刺灌丛的总的生物量、地上生物量、沙包内生物量和粘土内生物量建立了回归预测模型 。
Taking Nitraria tangutorum shrub at the outside of the Minqin oasis of Gansu Province as an example,easily determined characters of N.tangutorum shrub in sand dune,such as length(x1),width(x2),and height(x3) were chosed to establish regression equation.With the method of linear regression,5 forecast models were set up to facilitate the biomass of shrub dune.These models are as fallows: Total biomass:y=0.95+1.354x 1-5.123x 2+37.52x 3 Biomass on the ground:y=-0.278+0.32x 1-1.094x 2+8.951x 3 Biomass under the ground:y=-0.672+1.034x 1-4.029x 2+28.574x 3 Biomass at internal dune:y=-0.432+0.863x 1-4.02x 2+28.204x 3 Biomass in the clay:y=-0.24+0.171x 1-0.01x 2+0.369x 3
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