文献类型：期刊文献

英文题名：The Inorganic Composition of Tachigali vulgaris Wood: Implications for Bioenergy and Nutrient Balances of Planted Forests in the Amazonia

作者：dos Santos, Elvis Vieira[1] Lima, Michael Douglas Roque[2] Dantas, Kelly das Gracas Fernandes[3] Carvalho, Fabio Israel Martins[4] Goncalves, Delman de Almeida[5] Silva, Arystides Resende[5] Sun, Honggang[6] Ferreira, Marciel Jose[7] Bufalino, Lina[2] Hein, Paulo Ricardo Gherardi[1] Protasio, Thiago de Paula[4]

第一作者：dos Santos, Elvis Vieira

通信作者：dos Santos, EV[1]

机构：[1]Fed Univ Lavras UFLA, Dept Forest Sci, BR-37200000 Lavras, MG, Brazil;[2]Fed Rural Univ Amazonia UFRA, Inst Agr Sci, BR-66077830 Belem, PA, Brazil;[3]Fed Univ Para UFPA, Inst Exact & Nat Sci, Coll Chem, UFPA, BR-66075110 Belem, PA, Brazil;[4]Fed Rural Univ Amazonia UFRA, BR-68515000 Parauapebas, PA, Brazil;[5]Brazilian Agr Res Corp, Embrapa Eastern Amazonia, BR-66095903 Belem, PA, Brazil;[6]Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou 311400, Peoples R China;[7]Univ Fed Amazonas UFAM, Dept Ciencias Florestais, Manaus, AM, Brazil

年份：2023

外文期刊名：BIOENERGY RESEARCH

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001077515100001)】；

基金：This work was supported by the National Council for Scientific and Technological Development (CNPq-process no. 306793/2019-9) and Coordination for the Improvement of Higher Education Personnel (CAPES-finance code 001 and Edital Procad Amazpnia 2018-process no. 88881.199859/2018-01).

语种：英文

外文关键词：Energy forests; Nutrient export; Ash deposition; Renewable energy

摘要：Scientific information on the ash quality of Tachigalis vulgaris wood may reveal nutrient export mechanisms in energy forests and also insights into the wood quality for thermochemical conversions. This study aimed to evaluate the nutrient export and technological implications of ashes in the combustion of T. vulgaris grown in different planting spacings (4.5 m(2);6.0 m(2); 7.5 m(2); 9 m(2); 10.5 m(2); 12.0 m(2)). The levels of inorganic elements were determined for 7-year-old trees cultivated in experimental plantations across the eastern Amazonia region. The element contents were used to obtain the export of nutrients and to calculate the fouling index (FI), basic to acidic compound ratio (B/A), sintering index (SI), slag viscosity index (SR), bed agglomeration index (BAI), and alkali index (AI). The most exported nutrients were Ca (18.7 kg/ha), P (13.9 kg/ha), and K (6.6 kg/ha). The FI, B/A, SI, and SR indices suggested deposition problems in the boilers for all planting spacings. However, BAI and AI indicated a low propensity to form fouling and slag. The spacing significantly influenced the P export. Planting spacing of 12 m(2) demands increased P fertilization to maintain plantation productivity. The low ratio between alkaline earth and alkaline elements and high P2O5 values in the ash of T. vulgaris are disadvantageous. However, the high Al2O3 level and low ash content may contribute to the increase in the melting temperature of the ash. The study revealed that Tachigali vulgaris is a suitable species for wood production in energy forests.