IF 0.6 4区农林科学

BOSQUE Pub Date : 2021-04-29 DOI: 10.4067/S0717-92002021000100121

João Everthon da Silva Ribeiro, Ester dos Santos Coêlho

{"title":"Factores abióticos sobre aspectos ecofisiológicos de Handroanthus impetiginosus y Handroanthus serratifolius","authors":"João Everthon da Silva Ribeiro, Ester dos Santos Coêlho","doi":"10.4067/S0717-92002021000100121","DOIUrl":"https://doi.org/10.4067/S0717-92002021000100121","url":null,"abstract":"The objective of this research was to evaluate the influence of abiotic factors on the ecophysiological aspects of Handroanthus impetiginosus and Handroanthus serratifolius throughout the day, as well as to indicate the ideal time for ecophysiological evaluations. The design was entirely randomized, with ten treatments and six repetitions for each species. The treatments used were ten evaluation times throughout the day (8h-17h) with an interval of one hour between them. Climatic variables evaluated were internal and external temperature, relative humidity of the internal and external air of the greenhouse and the photosynthetically active radiation of the environment. Ecophysiological aspects evaluated were: net CO2 assimilation, stomatal conductance, transpiration, internal CO2 concentration, vapor pressure deficit, instantaneous water use efficiency, intrinsic water use efficiency and instantaneous carboxylation efficiency. The canonical correlation analysis and principle component analysis were used to verify associations between climatic and ecophysiological variables. In both species, climatic variables were correlated with ecophysiological variables, with higher association between photosynthetically active radiation, internal and external temperature of environment, with the rate of net CO2 assimilation, stomatal conductance, transpiration, instantaneous carboxylation efficiency and vapor pressure deficit. The influence of climatic factors on the ecophysiological aspects of H. impetiginosus and H. serratifolius was verified. In both species, the ideal time of day for measuring ecophysiological variables is between 11h and 13h.","PeriodicalId":55338,"journal":{"name":"BOSQUE","volume":" ","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44831013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Mapeo del daño en bosques incendiados de Chile central, mediante el modelado de índices espectrales ex-ante y ex-post 通过模拟事前和事后光谱指数，绘制智利中部被烧毁森林的损害图

IF 0.6 4区农林科学

BOSQUE Pub Date : 2021-01-01 DOI: 10.4067/s0717-92002021000200205

M. A. Peña, G. Martínez

{"title":"Mapeo del daño en bosques incendiados de Chile central, mediante el modelado de índices espectrales ex-ante y ex-post","authors":"M. A. Peña, G. Martínez","doi":"10.4067/s0717-92002021000200205","DOIUrl":"https://doi.org/10.4067/s0717-92002021000200205","url":null,"abstract":"This study estimated the severity of Nilahue-Barahona and Las Máquinas wildfires, occurred in central Chile during the summer of 2016-17, by an empirical-statistical modelling based on preand post-fire arithmetic differences of spectral indices sensitive to vigor, turgor and calcination states of vegetation. By doing this, map of damages were created to aid the efficient management and ecological restoration of disturbed forestry ecosystems. The index differences were calculated from Sentinel-2 satellite images, acquired anually in the summers spanning from 2016 to 2019. The resulting nine index-derived differences were used as predictors of burn severity, field-measured during the summer of 2019 using the CBI (composite burn index) method, into a linear stepwise regression that allowed for selecting those with the highest predictability. CBI yielded low correlations as its calculation includes low vegetation strata largely recovered at the time of the field data collection. However, when overstory field data were used alone, correlations increased (70 % of the data ≥ 0.80, P < 0.05). This was because this stratum was still appreciably damaged during the field campaign, along with its best representation from the image planimetry. The burn severity of both wildfires was mapped using the overstory data as regressand in a model based on NDWIex-ante-2019, NDWIex-ante-2018, NBRex-ante-2018 and NBRex-ante-2017 differences (R 2 ad = 0.77, RMSE = 0.35).","PeriodicalId":55338,"journal":{"name":"BOSQUE","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70491494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stand biomass estimation methods for Eucalyptus grandis and Eucalyptus dunnii in Uruguay 乌拉圭大桉和敦尼桉林分生物量估算方法

IF 0.6 4区农林科学

BOSQUE Pub Date : 2021-01-01 DOI: 10.4067/S0717-92002021000100053

A. Hirigoyen, F. Resquin, R. N. Cerrillo, J. Franco, Cecilia Rachid Casnati

{"title":"Stand biomass estimation methods for Eucalyptus grandis and Eucalyptus dunnii in Uruguay","authors":"A. Hirigoyen, F. Resquin, R. N. Cerrillo, J. Franco, Cecilia Rachid Casnati","doi":"10.4067/S0717-92002021000100053","DOIUrl":"https://doi.org/10.4067/S0717-92002021000100053","url":null,"abstract":"Biomass additivity is a desirable characteristic of a system of equations for predicting components and total biomass, since equations independently adjusted generate biologically inconsistent results. The aim of this study was to fit and compare three methods for modelling biomass: (i) total biomass individual regression, (ii) total biomass regression function calculated as the sum of separate biomass components, and (iii) simultaneous equations of biomass components based on Nonlinear Seemingly Unrelated Regression. A total of 208 trees of Eucalyptus dunnii and Eucalyptus grandis were harvested and destructively sampled to record above-ground biomass. Results indicate that a system of equations adjusted by simultaneous equations provides accurate biomass estimations, guaranteeing additivity. This model system showed good fit and good prediction performance, given that the correlation coefficient was higher than 97 % for total above-ground biomass, for both species; whereas root mean square error was 23.9 kg and 30.2 kg for E. grandis and E. dunnii, respectively. A system of biomass equations was developed for each eucalyptus species, such that the sum of the estimations of the biomass components equaled the estimate of above-ground biomass. Results showed that the systems of equations have high potential for improving the accuracy of individual tree above-ground biomass estimates for both species.","PeriodicalId":55338,"journal":{"name":"BOSQUE","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70491071","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Growth dynamics of Geoffroea decorticans and Parkinsonia praecox and their response to climate in arid and semiarid environments in Argentina 阿根廷干旱和半干旱环境下，松叶松和松叶松生长动态及其对气候的响应

IF 0.6 4区农林科学

BOSQUE Pub Date : 2021-01-01 DOI: 10.4067/S0717-92002021000100141

M. A. Cendoya, M. Micca, S. Bogino

{"title":"Growth dynamics of Geoffroea decorticans and Parkinsonia praecox and their response to climate in arid and semiarid environments in Argentina","authors":"M. A. Cendoya, M. Micca, S. Bogino","doi":"10.4067/S0717-92002021000100141","DOIUrl":"https://doi.org/10.4067/S0717-92002021000100141","url":null,"abstract":"Arid and semiarid environments dominate the Earth’s surface and are very vulnerable to global change. Chañar ( Geoffroea decorticans ) and brea ( Parkinsonia praecox ) are two ubiquitous woody species of these environments. They grow in degraded forests, strongly modified areas and as a main component of secondary forests. Despite the value of both species, little is known about their growth dynamics and their relationship with climate. The objective of this research was to determine their dendrochronological potential and the connection between growth and climate variables. Anatomical and standard dendrochronological methods were applied. First of all, we stated the anatomical characteristics that allowed us to detect tree-ring boundaries (terminal parenchyma and variation in the shape of vessels). Further, after dating and measurement of tree rings we determined significant correlation between series, which means a common growth signal among trees as a result of environmental variable effects. Trees were not older than 40 years. Mean annual radial growth was 3.37 mm (SD±0.71) and 2.16 mm (SD±0.61) for chañar and brea, respectively. Finally, chañar and brea had a negative growth-mean temperature association. Rainfall affected chañar and brea growth in summer previous to the growing season. Southern Oscillation Index (SOI) had an inverse association with growth of brea. This means, in the case of brea, a significant association with local (temperature and rainfall) and global (SOI) climate variables. These results evidenced the growth dynamics of both species and their value for dendroclimatological studies for the first time.","PeriodicalId":55338,"journal":{"name":"BOSQUE","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70490736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Comportamiento hidrológico de una mesocuenca de montaña en el centro oriente de México 墨西哥中东部山区的水文行为

IF 0.6 4区农林科学

BOSQUE Pub Date : 2021-01-01 DOI: 10.4067/s0717-92002021000200163

Alitzel Guzmán Huerta, Lyssette Elena Muñoz Villers

引用次数: 0

Propuesta teórica de rehabilitación de bosques de Nothofagus pumilio degradados por incendios basada en plantaciones en núcleo con Embothrium coccineum 基于栓皮栎(Embothrium coccineum)核心人工林的森林火灾退化恢复理论建议

IF 0.6 4区农林科学

BOSQUE Pub Date : 2021-01-01 DOI: 10.4067/s0717-92002021000300285

Alejandro Huertas Herrera, Álvaro Promis, M. Río, Mónica Toro Manríquez, M. V. Lencinas, Guillermo Martínez Pastur

引用次数: 0

Dinámica del carbono lábil del suelo en sistemas forestales de Eucalyptus grandis Hill ex Maiden en la Mesopotamia Argentina 阿根廷美索不达米亚巨桉山前少女森林系统土壤不稳定碳动态

IF 0.6 4区农林科学

BOSQUE Pub Date : 2021-01-01 DOI: 10.4067/s0717-92002021000300343

R. Romaniuk, Matias Venece, V. R. N. Cosentino, C. R. Álvarez, Esteban A Ciarlo, Helena Rimski Korsakov, Haydee S. Steinbach, A. Lupi

引用次数: 1

Enraizamiento de estacas de Pinus hartwegii de tres poblaciones naturales en ecosistemas de alta montaña del Estado de México y Veracruz 墨西哥和韦拉克鲁斯州高山生态系统中三个自然种群的哈特威吉松扦插生根

IF 0.6 4区农林科学

BOSQUE Pub Date : 2021-01-01 DOI: 10.4067/s0717-92002021000300323

Francisco Rivera Melo, Marcos Jiménez Casas, Carlos Ramírez herrera, Alma Yadira Martínez Rendón

引用次数: 0

New compostable tubes for the production of high quality seedlings of three species of Mimosa spp 用于三种含羞草高质量幼苗生产的新型堆肥管

IF 0.6 4区农林科学

BOSQUE Pub Date : 2021-01-01 DOI: 10.4067/s0717-92002021000300395

Anna Cecília Ferreira Stremel, Fernanda Neves Lima, M. R. Barrotto do Carmo, Rosimeri de Oliveira Fragoso, Carlos André Stuepp

{"title":"New compostable tubes for the production of high quality seedlings of three species of Mimosa spp","authors":"Anna Cecília Ferreira Stremel, Fernanda Neves Lima, M. R. Barrotto do Carmo, Rosimeri de Oliveira Fragoso, Carlos André Stuepp","doi":"10.4067/s0717-92002021000300395","DOIUrl":"https://doi.org/10.4067/s0717-92002021000300395","url":null,"abstract":"Obtaining high-quality native species seedlings and sustainable alternatives for seedling production are currently some of the bottlenecks for successful restoration plantings in degraded ecosystems. This study evaluated the survival and vigor of seminal seedlings of Mimosa flocculosa, M. micropteris and M. incana, produced in three containers (110 cm3 and 55 cm3 polypropylene tubes and 58 cm3 SISBGC type biocompostable container) for ecological restoration purposes in the phytogeographic region of Mixed Ombrophilous Forest. Survival, total height, stem diameter, shoot and root dry biomass, sturdiness quotient, Dickson’s quality index and technical efficiency were evaluated. Survival percentages were higher for the three Mimosa species throughout all evaluations and in the three containers, with an average over 95 %, demonstrating the viability of the seedling production protocol used. Although the 110 cm3 tube favored larger seedling growth, especially in M. flocculosa, the SISBGC tube showed similar efficiency for M. micropteris and M. incana. We conclude that a good performance in the nursery, associated with the bio-decomposition characteristics, makes SISBGC an excellent alternative for producing native seedlings for ecological restoration purposes.","PeriodicalId":55338,"journal":{"name":"BOSQUE","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70491874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Endemic Juniperus gracilior varieties of the Hispaniola island, tree taxa of environmental and economic relevance and a valuable phytochemical source 伊斯帕尼奥拉岛特有的桧品种，具有环境和经济意义的树木分类群和有价值的植物化学来源

IF 0.6 4区农林科学

BOSQUE Pub Date : 2021-01-01 DOI: 10.4067/S0717-92002021000100007

Carolina Juncá Morales, L. E. R. D. Francisco, Cristina López Hidalgo, R. N. Cerrillo, O. Perdomo, J. J. Novo

引用次数: 0

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