Accurate estimation of log MOE from non-destructive standing tree measurements

نویسندگان

چکیده

A novel non-destructive method has been developed to predict modulus of elasticity (MOE) logs using measurements taken from cores extracted discs. The trees were felled and cut into allow validation our method; however, similar results would be obtained if the standing trees. shows that a single core breast height is sufficient MOE logs, allowing early grading sorting for optimal use processing. Early estimation log allows efficient which can improve financial return reduce wastage wood. This work aims accurately on was predicted ultrasound conducted small segments two different approaches: segment average integral average. Sixty-eight locally F1 F2 hybrid pines (slash pine × Caribbean hybrids, Pinus elliottii var. P. caribaea hondurensis (PEE PCH cross)) validate results. Beam Identification by Non-destructive Grading (BING) used measure reference dynamic (BING-MOE) each log, this compared with estimated MOE. Strong correlations $$(r=0.79 \mathrm\ {to}\ 0.91)$$ between measured obtained. study revealed (1.3 m) tree good prediction Tree height, spacing, diameter had no significant effect prediction. under predicts BING-MOE, whereas provides very little bias in Furthermore, errors regression analysis all greater method. paper presented evaluation capable predicting whole combining data available breast-height approach. BING-MOE more lower other existing tools without any complex equipment, analysis, statistical calibration segregating out individual or stands. potentially species extended boards sawn log.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Acoustic-Based Non-Destructive Estimation of Wood Quality Attributes within Standing Red Pine Trees

The relationship between acoustic velocity (vd) and the dynamic modulus of elasticity (me), wood density (wd), microfibril angle, tracheid wall thickness (wt,), radial and tangential diameters, fibre coarseness (co) and specific surface area (sa), within standing red pine (Pinus resinosa Ait.) trees, was investigated. The data acquisition phase involved 3 basic steps: (1) random selection of 54...

متن کامل

Leaf area estimation by a simple and non-destructive method

In this study, the relation between leaf area and its dimensions was estimated using a non-destructive method. This method is based on this fact that the leaf shape does not change during the growing season. In this method, leaf area during the growing season is estimated based on the dimensions of the smallest leaf in the initial stage of plant growth or at any growth stage by measuring the le...

متن کامل

Non - Destructive Measurements for Robust Technologies

Non Destructive Evaluation (NDE) has become an inseparable part of modern society. Be it the field of engineering, technology, or healthcare, NDE is being used right from cradle to tomb to optimize processes, manage quality, predict the life and limit liability avoiding accidents. While NDE science and technology was qualitative during the first half of 20 century, the liberalisation of economi...

متن کامل

Accurate estimation of third-order moments from turbulence measurements

Politano and Pouquet’s law, a generalization of Kolmogorov’s four-fifths law to incompressible MHD, makes it possible to measure the energy cascade rate in incompressible MHD turbulence by means of third-order moments. In hydrodynamics, accurate measurement of thirdorder moments requires large amounts of data because the probability distributions of velocity-differences are nearly symmetric and...

متن کامل

Estimation of tree biomass reserves in tropical deciduous forests of Central India by non-destructive approach

The present study deals with the estimation of tree biomass by non destructive method in tropical dry deciduous forest (DDF) and tropical mixed deciduous forest (MDF) in 0.1 ha permanent plots, established at seven sites each in seven districts of state of Madhya Pradesh in central India. Tree volume was calculated using site specific volume equation. The biomass of each species was estimated t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Annals of Forest Science

سال: 2021

ISSN: ['1286-4560', '1297-966X']

DOI: https://doi.org/10.1007/s13595-021-01031-w