General estimation models for above- and below-ground biomass of teak (Tectona grandis) plantations in Thailand

Tanaka, Kenzö; Himmapan, Woraphun; Yoneda, Reiji; Narin, Tedsorn; Vacharangkura, Tosporn; Hitsuma, Gaku; Noda, Ichiro

doi:10.1016/j.foreco.2019.117701

Cited by 35 publications

(27 citation statements)

References 39 publications

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“…Some reference values for freijó wood quality can be obtained from Alves et al (2013) and Lima et al (2013), who found ρ a and ρ b , for wood from natural forests of about 590 and 504 kg m -3 , respectively. The characteristics of our freijó samples were similar to those of other species cultivated worldwide, such as teak (Tectona grandis), with values of ρ a and ρ b around 580 and 430 kg m -3 , respectively (Rizanti et al 2018;Amoah and Inyong, 2019;Kenzo et al 2020).…”

Section: Physical Propertiessupporting

confidence: 65%

Physico-mechanical properties of the wood of freijó, Cordia goeldiana (Boraginacea), produced in a multi-stratified agroforestry system in the southwestern Amazon

et al. 2021

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Agroforestry systems (AFSs) integrate, through sustainable practices, agricultural and forest crops for the production of wood and food, providing environmental services, and conserving biodiversity. The freijó (Cordia goeldiana) has potential for cultivation in the Amazon for timber purposes, but data on the characteristics of its wood produced in AFSs are scarce. Our objective was to determine the physical-mechanical properties and suggest technological applications of freijó wood produced in a multi-stratified AFS established in the state of Rondônia, Brazil in 1996. Agricultural and forest species were established in the AFS in double rows with 5.0-m x 2.5-m spacing. Three 19-year-old freijó trees were harvested for chemical, physical (density and dimensional stability), and mechanical (compression, static bending, Janka hardness, and shear strength) characterization of the wood. The wood presented a chemical composition similar to tropical hardwoods, was moderately heavy (582.63 kg m-3), and had high dimensional stability in comparison with other consecrated woods on the market (longitudinal, radial, and tangential retraction = 0.25, 4.27, and 6.83%, respectively). The values determined for parallel (32.32 MPa) and perpendicular compression (8.02 MPa), specific strength (55.32 MPa kg-1 m-3), parallel (2373.33 N) and perpendicular Janka hardness (2326.67 N), strength to static bending (63.5 MPa), and shear (5.94 MPa) were similar to the values observed in other high-density tropical woods grown in either monoculture plantations or natural forests. The wood under study is suitable for manufacture of high-value-added products, such as fine furniture, residential floors, musical instruments and structural pieces.

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Section: Physical Propertiessupporting

confidence: 65%

Physico-mechanical properties of the wood of freijó, Cordia goeldiana (Boraginacea), produced in a multi-stratified agroforestry system in the southwestern Amazon

et al. 2021

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“…Meanwhile, there was a case that height of teak planted in northeast Thailand was over 10 m for five years by soil improvement [16]. This value was similar with the suitable region of teak plantation in Thailand [18]. Thus, some areas in northeast Thailand have a potential for high growth of teak [19].…”

Section: Introductionmentioning

confidence: 83%

Effect of Bentonite on the Early Growth Characteristics of Teak Seedlings Planted in Sandy Soil in Northeast Thailand—A Pilot Study

Kayama

Nimpila

Hongthong

et al. 2020

Forests

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The growth of teak (Tectona grandis L. f.) seedlings in sandy soil in northeast Thailand is suppressed by infertility and drought stress. In a preliminary field pot experiment, we confirmed that bentonite was useful for increasing soil water availability. To monitor early growth characteristics of teak seedlings in sandy soil, we curried out an experiment of teak seedlings using bentonite and fertilizer in the field from July 2014 to November 2015. We then compared the growth, biomass, photosynthetic rate, leaf water potential, and concentration of elements in the plant organs among the four treatments. Bentonite increased both soil pH and Ca during the experimental period, and retained P in fertilizer. The dry mass of teak seedlings was markedly increased by concurrent use of bentonite and fertilizer. However, the use of bentonite alone showed little increase of dry mass of teak seedlings. Moreover, application of bentonite was mitigated drought stress in dry season, and photosynthetic rate showed high value by high concentration of chlorophyll. The concentration of K in root of teak seedlings was increased by application of bentonite, and its value showed positive correlation with the relative growth rate of teak seedlings. We concluded that bentonite was useful for the uptake of K and retention of P in fertilizer, as a result, growth of teak seedlings was accelerated.

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“…The SI values of plantations ranged from 13.6 to 32.2 (22.0 ± 3.7). Although we observed variations in the age and size of the studied stands, wood density, which has a strong effect on growth, does not vary widely in Thailand, including the study area (Kenzo et al 2020).…”

Section: Stand Growth Topographic Factors and Soil Propertiesmentioning

confidence: 58%

Effects of Topography, Soil Organic Matter, and Chemical Properties on the Growth of Teak (<i>Tectona grandis</i>) Plantations in Northeast Thailand

Noda

Himmapan

Vacharangkura

et al. 2021

JARQ

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General estimation models for above- and below-ground biomass of teak (Tectona grandis) plantations in Thailand

Cited by 35 publications

References 39 publications

Physico-mechanical properties of the wood of freijó, Cordia goeldiana (Boraginacea), produced in a multi-stratified agroforestry system in the southwestern Amazon

Physico-mechanical properties of the wood of freijó, Cordia goeldiana (Boraginacea), produced in a multi-stratified agroforestry system in the southwestern Amazon

Effect of Bentonite on the Early Growth Characteristics of Teak Seedlings Planted in Sandy Soil in Northeast Thailand—A Pilot Study

Effects of Topography, Soil Organic Matter, and Chemical Properties on the Growth of Teak (<i>Tectona grandis</i>) Plantations in Northeast Thailand

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