ABSTRACT A bibliometric study was undertaken to analyze the spatiotemporal distribution of works related to managing boron (B) in Eucalyptus spp. from 1970 to 2022. This analysis was based on the Web of Science and Scopus databases, and 121 documents were retrieved. The eight main aspects analyzed were (1) annual scientific production, (2) most relevant research sources, (3) world scientific production, (4) association between countries, (5) most relevant affiliations, (6) indexed terms, (7) most relevant authors, and (8) most cited documents. The results indicated that publications of studies about B in eucalyptus have increased significantly over the last decade (2010-2020). Brazil has produced the most studies relating to the nutritional management of B in eucalyptus, as is mainly reflected in the numbers of researchers, research institutions, and journals that have published on the subject. Our study found that most works have been developed regionally, with little international collaboration between countries although researchers from the United States are the most frequent partners in international collaborations. The majority of the articles analyzed focused on studying the influence of B doses on the growth and rooting of eucalyptus seedlings. Finally, one significant gap in the literature is the need for studies on sources of B via soil and leaves, and new studies on this subject should be commissioned. Thus, the bibliometric review was an efficient approach for observing the main advances in managing B in eucalyptus in recent decades and identifying the leading research groups and future opportunities for scientific advances in this area. (B spp 197 2022 databases 12 retrieved 1 (1 production 2 (2 3 (3 4 (4 5 (5 affiliations 6 (6 terms 7 (7 authors 8 (8 20102020. 20102020 2010 2020 . (2010-2020) institutions regionally collaborations seedlings Finally leaves commissioned Thus area 19 202 ( 2010202 201 (2010-2020 20 201020 (2010-202 20102 (2010-20 (2010-2 (2010- (2010 (201 (20

ABSTRACT Fertilization with boron (B) is a crucial aspect in the management of tropical soils to achieve high yield and wood quality in forest species. However, studies are still needed for a better understanding of the effects of B on the anatomy and physiology of African mahogany to improve borate fertilization programs in terms of doses and sources of B. The objective was to characterize the morphology and anatomy of African mahogany leaves subjected to doses and sources of B, as well as to investigate leaf lesions caused by excess B. In a 3 × 3 factorial scheme, a randomized block design was used with four replications, resulting in a total of 36 experimental units. The treatments consisted of three sources of B: borax (sodium tetraborate), ulexite, and colemanite, and three doses of B: 0, 1.5, and 3 mg dm –3 . After 120 days of transplanting, leaf samples with and without toxicity lesions were collected for morphological and anatomical evaluations. Following the collection, the samples were photographed and fixed in Karnovsky’s solution. The plants cultivated in the control treatment did not exhibit any symptoms of B deficiency in the leaf tissue. Borax and ulexite sources, and higher doses of B resulted in greater lesions, accompanied by the accumulation of phenols in the necrotic region. In contrast, the source of lower solubility (colemanite) and lower dose of B demonstrated the highest accumulation of starch. African mahogany is sensitive to applying high doses (3 mg dm –3 ) and high solubility sources of Boron (borax). Excessive B levels cause necrosis and structural disorganization of African mahogany leaf tissues. (B species However scheme replications units sodium tetraborate, tetraborate , tetraborate) colemanite 0 15 1 5 1.5 – 12 transplanting evaluations collection Karnovskys Karnovsky s solution tissue region contrast (colemanite starch ( borax. (borax) tissues 1. (borax

RESUMO Pesquisas que quantificam o estoque de carbono em matas ciliares destacam-se pela apresentação de serviços ambientais que essas florestas oferecem e assim minimizam os efeitos das mudanças climáticas. Objetivou-se com a realização deste trabalho: i) quantificar o estoque de carbono presente na biomassa acima do solo das espécies presentes em áreas de mata ciliar; ii) ranquear as espécies pelo índice de valor de importância ampliado (IVIA) em relação à análise fitossociológica padrão, pelo índice de valor de importância (IVI). Os dados utilizados no estudo foram obtidos a partir de um inventário realizado em áreas de vegetação ripária, região sudoeste do estado de Goiás. Estimou-se a biomassa da madeira de cada árvore para todas as espécies e posteriormente a estimativa de estoque de carbono (Mg.ha-1) por hectare na fitofisionomia. A mata ciliar possui alta capacidade de estocar carbono e a incorporação dessa variável e o ranqueamento das espécies pelo índice de importância ampliado pode ser utilizado como razão para conservação e preservação das matas ciliares, bem como um critério na escolha de espécies com maior potencial de estoque de carbono para recuperação de áreas degradadas. destacamse destacam se climáticas Objetivouse Objetivou trabalho i ii IVIA (IVIA padrão IVI. IVI . (IVI) ripária Goiás Estimouse Estimou Mg.ha1 Mgha1 Mgha Mg.ha 1 Mg ha (Mg.ha-1 fitofisionomia degradadas (IVI ha1 (Mg.ha- (Mg.ha

ABSTRACT Research that aims to quantify the carbon stock in riparian forests underscores the environmental services of these forests to minimize the effects of climate change. The objective of this work was to i) quantify the carbon stock present in the above-ground biomass of the species present in areas of riparian forest and ii) rank species by the expanded importance value index (IVIA) in relation to a standard phytosociological analysis by the importance value index (IVI). The data used in the study were taken from an inventory conducted in areas of riparian vegetation in the southwestern region of the state of Goiás. The wood biomass of each tree was estimated for all species, with a later estimate of carbon stock (Mg.ha-1) per hectare in the phytophysiognomy. The riparian forest has a high capacity to store carbon. Incorporation of this variable and ranking of species by the expanded importance index can be a reason to conserve and preserve riparian forests, as well as a criterion in the choice of species with greater potential to stock carbon for the recovery of degraded areas. change i aboveground above ground ii IVIA (IVIA IVI. IVI . (IVI) Goiás Mg.ha1 Mgha1 Mgha Mg.ha 1 Mg ha (Mg.ha-1 phytophysiognomy (IVI ha1 (Mg.ha- (Mg.ha