Silvicultura e Manejo Florestal: Técnicas de Utilização e Conservação da Natureza - Volume 2最新文献

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HARVESTING CRITERIA APPLICATION AS A TECHNICAL AND FINANCIAL ALTERNATIVE FOR MANAGEMENT OF DEGRADED TROPICAL FORESTS: A CASE STUDY FROM BRAZILIAN AMAZON 采伐标准作为退化热带森林管理的技术和财政替代办法的应用:巴西亚马逊地区的案例研究

Silvicultura e Manejo Florestal: Técnicas de Utilização e Conservação da Natureza - Volume 2 Pub Date : 2020-09-27 DOI: 10.3390/D12100373

Marco A. Siviero, A. Ruschel, J. Yared, Osmar J. R. de Aguiar, P. Pereira, S. Vieira, A. Sales

{"title":"HARVESTING CRITERIA APPLICATION AS A TECHNICAL AND FINANCIAL ALTERNATIVE FOR MANAGEMENT OF DEGRADED TROPICAL FORESTS: A CASE STUDY FROM BRAZILIAN AMAZON","authors":"Marco A. Siviero, A. Ruschel, J. Yared, Osmar J. R. de Aguiar, P. Pereira, S. Vieira, A. Sales","doi":"10.3390/D12100373","DOIUrl":"https://doi.org/10.3390/D12100373","url":null,"abstract":"This article addresses a case study on the application of criteria for harvesting, aiming at restoration and profitability in a degraded tropical forest in the Amazon. The objective is to provide technical and economic information to promote a truly sustainable silvicultural management system in forests with this profile and turn them into a desirable financial asset for conservation and social development. In the forest census, 85.907 trees ha−1 (100.8566 m3 ha−1) were inventoried with diameter at breast height (dbh) ≥ 25 cm, belonging to 106 commercial species. When applying the harvest criteria, 19.923 trees ha−1 (29.99 m3 ha−1), referring to 53 species, were destined for harvest. Some trees were selected by more than one criterion, totalizing 17.985 trees ha−1 by density, 1.831 trees ha−1 by compromised health, 0.212 trees ha−1 by maximum dbh, 18.933 trees ha−1 by minimum dbh, 1.385 trees ha−1 by tree stem (quality 3), and 0.080 trees ha−1 by species conservation. In all scenarios, the application of criteria for harvesting proved to be profitable with excellent cost–benefit ratios. The selection of trees with a minimum cutting diameter of 25 cm in shorter cycles tends to allow the promotion of new commercial species. The set of actions presented has the potential to favor the maintenance of biodiversity and expansion of low-density populations, health and the potential increment of the forest productivity. In addition, it is more feasible for the supply of forest products in a shorter time than provided for in Brazilian regulations; however, they must respect the specificities of the species and also of the site.","PeriodicalId":205696,"journal":{"name":"Silvicultura e Manejo Florestal: Técnicas de Utilização e Conservação da Natureza - Volume 2","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117020855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

IN VITRO PROPAGATION OF CASEARIA SYLVESTRIS SWARTZ (SALICACEAE) 水杨科黑穗病菌的离体繁殖

Silvicultura e Manejo Florestal: Técnicas de Utilização e Conservação da Natureza - Volume 2 Pub Date : 1900-01-01 DOI: 10.37885/210404152

J. Paranhos, Lisiane Löbler, Joanei Cechin, Tiéle Stuker Fernandes, H. H. Soriani, Elvis Fao

{"title":"IN VITRO PROPAGATION OF CASEARIA SYLVESTRIS SWARTZ (SALICACEAE)","authors":"J. Paranhos, Lisiane Löbler, Joanei Cechin, Tiéle Stuker Fernandes, H. H. Soriani, Elvis Fao","doi":"10.37885/210404152","DOIUrl":"https://doi.org/10.37885/210404152","url":null,"abstract":"In order to do an in vitro propagation of Casearia sylvestris , a tree native to Brazilian forests, studies of in vitro seed germination were performed and aseptic seedlings obtained were used as explant donors for micropropagation. Mature and immature seeds, stored for 10 days at 10 or 25°C were inoculated in medium containing 10% of MS salts and kept in the light (a 16-hour photoperiod) or continuous dark, at 25°C. For immature seeds, gibberellic acid (GA 3 ) was or was not tested at a concentration of 1.5 mg l -1 . From the seedlings obtained, the cotyledon and apical segments were removed and cultured in complete MS medium with five combinations of 6-benzylaminopurine (BAP) and naphthalene acetic acid (NAA): 0.0; 0.25; 0.5; 1.0; 2.0 and 0.0; 0025; 0.05; 0.1; 0.2 mg L-1, respectively. The aerial shoots formed in vitro were cultured in MS medium containing 0.0 or 1.5 mg L -1 indole-3-butyric acid (IBA) for rooting. The highest percentage of germination (60%) occurred in mature seeds exposed to light, regardless of other treatments, and may be considered positive photoblastic. The highest percentage of germination of immature seeds (27%) occurred when previously stored at 10 ° C with or without GA 3 . The induction of aerial shoots was more efficient in apical segments in a medium containing the lowest combination of BAP and NAA or free of these growth regulators. The higher number of roots occurred in aerial shoots obtained from cotyledon segments, with or without IBA. After acclimatization, 83% of the plants survived. Five combinations of L -1 0.025; L -1 , respectively. explant types combinations of in a","PeriodicalId":205696,"journal":{"name":"Silvicultura e Manejo Florestal: Técnicas de Utilização e Conservação da Natureza - Volume 2","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122074012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Silvicultura e Manejo Florestal: Técnicas de Utilização e Conservação da Natureza - Volume 2 林业和森林管理:利用技术和自然保护-第2卷

Silvicultura e Manejo Florestal: Técnicas de Utilização e Conservação da Natureza - Volume 2 Pub Date : 1900-01-01 DOI: 10.37885/978-65-89826-19-4

Robson José de Oliveira

引用次数: 0