Availability for small-scale woody biomass power generation from the view of forest resources in Tochigi Prefecture, Japan
Availability for small-scale woody biomass power generation from the view of forest resources in Tochigi Prefecture, Japan
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从日本栃木县森林资源看小型木质生物质发电的可行性
DOI：
10.1080/14942119.2018.1514178
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发表时间：
2018
影响因子：
1.9
通讯作者：
Hiroaki Shirasawa
中科院分区：
文献类型：
--
作者：
Takahisa Yamamoto;Kazuhiro Aruga;Hiroaki Shirasawa
本研究提取了生产林，并估计了日本杉树和柏树的私人和公共森林，以及国家森林，日本栃木县，盈利性森林管理下的森林生物量资源的年可用性。生产林是作为小班开采的，从种植到最后收获，预期收入超过所有成本，55年轮换。然后，根据生产林的年供应潜力，估算了森林生物量资源的年可利用量。木材和森林生物质资源的年供应潜力分别为1，070，234 m3和493，572绿色吨（公吨）。木材和森林生物量资源的年可利用量估计分别为357 461立方米和149 808绿色吨（公吨）。日本雪松和柏树的年供应量分别为私人和公共森林供应潜力的31.5%和50.1%，国家森林供应潜力的14.4%和49.6%，这是因为日本柏树的价格较高，私人和公共森林提供补贴。为了维持可持续森林管理，生产林的开采利润超过1，880，000日元/公顷（2018年4月16日1美元= 107日元），为期55年。因此，年度供应量估计分别为91，857立方米和42，391绿色吨（公吨）。由于2，500 kWe中川木质生物质发电厂每年消耗35，000吨绿色森林生物质资源，可以满足其需求。
This study extracted production forests and estimated the annual availability of forest biomass resources under profitable forest management for Japanese cedar and cypress of private and communal forests, as well as national forests, of Tochigi Prefecture, Japan. Production forests were extracted as sub-compartments where expected revenues surpassed all costs, from planting to final harvest, for a 55-year rotation. Then, annual availability of forest biomass resources was estimated on the basis of annual supply potential from production forests. Annual supply potential of timber and forest biomass resources were 1,070,234 m3and 493,572 green tons (metric), respectively. Annual availability of timber and forest biomass resources was estimated at 357,461 m3and 149,808 green tons (metric), respectively. Annual availability of Japanese cedar and cypress was 31.5% and 50.1% of their supply potential in private and communal forests, and 14.4% and 49.6% in national forests, because of higher prices for Japanese cypress and subsidy provision for private and communal forests. In order to maintain sustainable forest management, production forests were extracted with more than 1,880,000 JPY/ha (1 USD = 107 JPY on 16 April 2018) profits for a 55-year rotation. As a result, annual availability was estimated at 91,857 m3and 42,391 green tons (metric), respectively. Since the 2,500 kWe Nakagawa woody biomass power generation plant consumed 35,000 green tons/year of forest biomass resources, its demand could be met.
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作者：
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DOI：
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发表时间：
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DOI：
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发表时间：
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期刊：
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