Volume 29 Issue 4
Jul.  2012
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LUO Xian-Xian. Straight-line intersect sampling with comprehensive forest resource monitoring[J]. Journal of Zhejiang A&F University, 2012, 29(4): 566-573. doi: 10.11833/j.issn.2095-0756.2012.04.013
Citation: LUO Xian-Xian. Straight-line intersect sampling with comprehensive forest resource monitoring[J]. Journal of Zhejiang A&F University, 2012, 29(4): 566-573. doi: 10.11833/j.issn.2095-0756.2012.04.013

Straight-line intersect sampling with comprehensive forest resource monitoring

doi: 10.11833/j.issn.2095-0756.2012.04.013
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  • Corresponding author: LUO Xian-Xian
  • Received Date: 2011-09-16
  • Rev Recd Date: 2011-12-01
  • Publish Date: 2012-08-20
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Straight-line intersect sampling with comprehensive forest resource monitoring

doi: 10.11833/j.issn.2095-0756.2012.04.013
    Corresponding author: LUO Xian-Xian

Abstract: Line intersect sampling is an inventory method for rare populations using unequal probability sampling with replacement. For ecological management,the formula to calculate total volume,density,and mean and total number,as well as to of fallen dead woods estimate precision,variance,and the estimate interval was systematically deduced. Then,straight-line intersect sampling was applied to the inventory of fallen dead woods in the fourth small section of the first section of checking method in China. The effect of different transect length on inventory precision was discussed. The best transect length was determined to be 50 m taked inventory time and precision into consideration,for which the total volume of fallen dead woods was 536.85 m3,the volume density was 27.53 m3hm-2,the total number of fallen dead woods was 5 887,and the sampling precision gained was 90.05% (with a reliability of 95%). These results could provide scientific and practical applications for ground plot designs with comprehensive forest resource monitoring.[Ch,7 fig. 4 tab. 19 ref.]

LUO Xian-Xian. Straight-line intersect sampling with comprehensive forest resource monitoring[J]. Journal of Zhejiang A&F University, 2012, 29(4): 566-573. doi: 10.11833/j.issn.2095-0756.2012.04.013
Citation: LUO Xian-Xian. Straight-line intersect sampling with comprehensive forest resource monitoring[J]. Journal of Zhejiang A&F University, 2012, 29(4): 566-573. doi: 10.11833/j.issn.2095-0756.2012.04.013

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