scholarly journals Supply Potential and Annual Availability of Timber and Forest Biomass Resources for Energy Considering Inter-Prefectural Trade in Tohoku Region of Japan

2020 ◽  
Vol 3 (1) ◽  
pp. 40
Author(s):  
Yusuke Matsuoka ◽  
Hiroaki Shirasawa ◽  
Uichi Hayashi ◽  
Kazuhiro Aruga
Keyword(s):  
Tree Species ◽  
Forest Biomass ◽  
Wood Chip ◽  
Site Index ◽  
Geographical Survey Institute ◽  
Digital Elevation ◽  
Gis Data ◽  
Biomass Resource ◽  
Biomass Resources ◽  
Generation Capacity

To promote sustainable timber and forest biomass utilization, this study estimated technically feasible and economically viable availability considering forest regenerations. This study focuses on five prefectures, namely, Aomori, Iwate, Miyagi, Akita, and Yamagata, and considers the trade between these prefectures. The data used in this study include forest registration (tree species and site index) and GIS data (information on roads and subcompartment layers) from the prefectures for private and communal forests. Additionally, this study includes GIS data (subcompartment layers, including tree species) from the Forestry Agency of Japan for national forests as well as 10-m-grid digital elevation models (DEMs) from the Geographical Survey Institute. As a result, supply potentials of timber and forest biomass resources were estimated at 11,388,960 m3/year and 2,277,792 m3/year, respectively. Then, those availabilities were estimated at 1,631,624 m3/year and 326,325 m3/year. Therefore, the rate of availabilities to supply potentials was 14.3%. Since timber production, and wood chip usage from thinned woods and logging residues in 2018 were 4,667,000 m3/year and 889,600 m3/year, respectively, the rates of timber and forest biomass resource availabilities to those values were 35.0% and 36.7%, respectively. Furthermore, the demand was estimated at 951,740 m3/year from 100,000 m3/year with the generation capacity of 5 MW. The rate of forest biomass resource availability versus the demand was 34.2%. The rates were increased to 64.1% with an additional regeneration subsidy, 173.3% with the thinning subsidy, and 181.5% with both subsidies. Thus, the estimated availability with both subsidies met the demand sufficiently in this region.

scholarly journals Annual Availability of Forest Biomass Resources for Woody Biomass Power Generation Plants from Subcompartments and Aggregated Forests in Tohoku Region of Japan

Forests ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 71
Author(s):  
Yusuke Matsuoka ◽  
Hiroaki Shirasawa ◽  
Uichi Hayashi ◽  
Kazuhiro Aruga
Keyword(s):  
Forest Biomass ◽  
Small Diameter ◽  
Wood Chip ◽  
Woody Biomass ◽  
Logging Residues ◽  
Biomass Resources ◽  
Supply Potential ◽  
Generation Capacity ◽  
Final Harvest

To utilize timber and forest biomass resources for bioenergy, technically feasible and economically viable timber and forest biomass resources should be estimated accurately considering their long-term availability. This study focuses on five prefectures, namely, Aomori, Iwate, Miyagi, Akita, and Yamagata, and considers trade between these prefectures. The annual availability of timber and forest biomass resources, such as small-diameter or defect stem logs, rather than logging residues in Japan was estimated as supply potential from profitable forests where expected revenues surpassed all costs, from planting to final harvest. As a result, the supply potential and annual availability of timber were estimated at 11,388,960 m3/year and 1,631,624 m3/year, whereas those of forest biomass resources were estimated at 2,277,792 m3/year and 326,325 m3/year, respectively. Therefore, the rate of annual availability to supply potential was 14.3%. Since timber production and wood chip usage from thinned woods and logging residues in 2018 were 4,667,000 m3/year and 889,600 m3/year, the rates of annual availability for timber and forest biomass resources to those values were 35.0% and 36.7%, respectively. Furthermore, the demand was estimated at 951,740 m3/year from 100,000 m3/year with a generation capacity of 5 MW. The rate of forest biomass resource availability to demand was 34.2%. A thinning subsidy was provided for operational site areas larger than 5 ha in Japan. The rates from subcompartments and aggregated forests with a thinning subsidy increased to 91.4% and 190.3%, respectively. Thus, the estimated availability from aggregated forests with a thinning subsidy met the demand sufficiently in this region.

Using multilevel remote sensing and ground data to estimate forest biomass resources in remote regions: a case study in the boreal forests of interior Alaska

2011 ◽  
Vol 37 (6) ◽  
pp. 596-611 ◽  
Author(s):  
Hans-Erik Andersen ◽  
Jacob Strunk ◽  
Hailemariam Temesgen ◽  
Donald Atwood ◽  
Ken Winterberger
Keyword(s):  
Remote Sensing ◽  
Boreal Forests ◽  
Forest Biomass ◽  
Interior Alaska ◽  
Biomass Resources

Forest Biomass Estimation Based on Forest Inventory Data in Middle and Last Scales

2011 ◽  
Vol 183-185 ◽  
pp. 220-224
Author(s):  
Ming Ze Li ◽  
Wen Yi Fan ◽  
Ying Yu
Keyword(s):  
Tree Species ◽  
Forest Inventory ◽  
Forest Biomass ◽  
Biomass Estimation ◽  
Total Biomass ◽  
Inventory Data ◽  
Biomass Equation ◽  
Tree Species Composition ◽  
Forest Inventory Data ◽  
Ecosystem Carbon

The forest biomass (which is referred to the arbor aboveground biomass in this research) is one of the most primary factors to determine the forest ecosystem carbon storages. There are many kinds of estimating methods adapted to various scales. It is a suitable method to estimate forest biomass of the farm or the forestry bureau in middle and last scales. First each subcompartment forest biomass should be estimated, and then the farm or the forestry bureau forest biomass was estimated. In this research, based on maoershan farm region, first the single tree biomass equation of main tree species was established or collected. The biomass of each specie was calculated according to the materials of tally, such as height, diameter and so on in the forest inventory data. Secondly, each specie’s biomass and total biomass in subcompartment were calculated according to the tree species composition in forest management investigation data. Thus the forest biomass spatial distribution was obtained by taking subcompartment as a unit. And last the forest total biomass was estimated.

Ponderosa Pine Habitat Types as an Indicator of Site Quality in the Dixie National Forest, Utah

1989 ◽  
Vol 4 (2) ◽  
pp. 52-54 ◽  
Author(s):  
David L. Verbyla ◽  
Richard F. Fisher
Keyword(s):  
Pinus Ponderosa ◽  
Ponderosa Pine ◽  
Tree Species ◽  
Habitat Type ◽  
Site Index ◽  
Site Quality ◽  
National Forest ◽  
Habitat Types ◽  
Quercus Gambelii ◽  
Generally True

Abstract Forest habitat types have been purported to be useful indicators of site quality. This is generally true for habitat types with different dominant tree species. However, few have studied the site indicator value of habitat types with the same dominant tree species. We measured site index (base age 25) from 172 randomly selected plots within the ponderosa pine (Pinus ponderosa) zone of the Dixie National Forest, Utah. The range of site index within any one habitat type was broad. Poor sites occurred on all five habitat types. However, the best sites occurred only on the Pinus ponderosa/Symphoricarpos oreophilus and Pinus ponderosa/Quercus gambelii habitat types. Therefore, habitat type may be useful in predicting the best sites, but only if other site information is used in addition to habitat type. West. J. Appl. For. 4(2):52-54, April 1989.

Allometric models of major tree species and forest biomass in Guangxi

2015 ◽  
Vol 35 (13) ◽  
Author(s):  
汪珍川 WANG Zhenchuan ◽  
杜虎 DU Hu ◽  
宋同清 SONG Tongqing ◽  
彭晚霞 PENG Wanxia ◽  
曾馥平 ZENG Fuping ◽  
...  
Keyword(s):  
Tree Species ◽  
Forest Biomass ◽  
Allometric Models

ASSOCIATION OF TOTAL CaCO3 AND ACTIVE CaCO3 WITH GROWTH OF FIVE TREE SPECIES ON CHERNOZEMIC SOILS

1981 ◽  
Vol 61 (1) ◽  
pp. 173-175 ◽  
Author(s):  
M. R. CARTER
Keyword(s):  
Tree Species ◽  
Soil Depth ◽  
Clay Fraction ◽  
Site Index ◽  
Fine Silt ◽  
Stunted Growth ◽  
Effective Site

In Chernozemic soils, active CaCO3, an estimate of the CaCO3 in the clay and fine silt particles, proved to be a more effective site index for several tree species than total CaCO3. In general, active CaCO3 exceeding 7–9% caused incidences of stunted growth and chlorosis. High levels of active CaCO3 within the 0–30 cm soil depth were related to enrichment of CaCO3 in the clay fraction.

Energy Potentiality of Crops Straw Resources in Yunnan

2012 ◽  
Vol 485 ◽  
pp. 421-424
Author(s):  
Hong Yang ◽  
Wu Di Zhang ◽  
Fang Yin ◽  
Shi Qing Liu
Keyword(s):  
Yunnan Province ◽  
Biogas Production ◽  
Daily Life ◽  
Biomass Resources ◽  
Generating Capacity ◽  
Generation Capacity

Crops straw is very important biomass resources. This paper estimated biogas potential, biogas generating capacity and the amount of standard coal alternative according to the production of crops straw from 2000 to 2010 in Yunnan Province. The results indicated: the amount of straw resources reduced in 2002 and 2003, it began to rise in 2004 and larger increase in 2007. Then the amount of crops straw reached 1485 ten thousand tons in 2010. It can produce 2.97 × 109m3 of methane. The biogas production can meet the need of almost 5.42 million farmers in the daily life each year, it can solve more than half of rural farmer’s needs in Yunnan Province. Biogas generation capacity can reach 4.75 × 109kWh, the production of biogas can replace 2.08 × 109kg of standard coal.

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