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Effects of arbuscular mycorrhizal fungi on microbial activity and nutrient release are sensitive to acid deposition during litter decomposition in a subtropical Cinnamomum camphora forest 亚热带樟科肉桂林中枯落物分解过程中,丛枝菌根真菌对微生物活动和养分释放的影响对酸沉积很敏感
IF 1.7 4区 农林科学 Q2 FORESTRY Pub Date : 2023-12-31 DOI: 10.3832/ifor4324-016
C. Wu, X. Kong, X. He, Y. Lin, Z. He, Y. Gao, Q. Kong
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引用次数: 0
Use of unmanned aerial vehicles for the diagnosis of parasitic plant infestation at the crown level in Pinus hartwegii 利用无人机诊断哈特威松树冠水平的寄生植物侵染
4区 农林科学 Q2 FORESTRY Pub Date : 2023-10-31 DOI: 10.3832/ifor4002-016
LA León-Bañuelos, AR Endara-Agramont, EG Nava-Bernal, W Gómez-Demetrio
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引用次数: 0
Breeding and improvement of black locust (Robinia pseudoacacia L.) with a special focus on Hungary: a review 以匈牙利为重点的刺槐育种与改良研究进展
4区 农林科学 Q2 FORESTRY Pub Date : 2023-10-31 DOI: 10.3832/ifor4254-016
T Ábri, K Cseke, Z Keserü, A Porcsin, FM Szabó, K Rédei
Black locust (Robinia pseudoacacia L.) is a multipurpose tree species native to North America commonly planted worldwide for its resistant and durable wood, rapid growth, site tolerance, honey production, and other qualities. However, caution is warranted when planting the species outside its native range due to its potential invasiveness with respect to the native flora. Many countries, particularly Hungary and China, have been conducting forestry research on black locust for decades to increase black locust yields, nectar production, and stem quality. The main breeding objectives, such as fast growth, superior trunk quality or higher nectar production, have already been achieved. Existing reviews on this tree species do not cover the whole research history of breeding, making a comprehensive review increasingly critical to identify research gaps, trends, and drawbacks. The present study offers a systematic analysis of nearly 100 papers spanning the last century and the most recent research on black locust improvement. This study also includes a detailed summary of the available cultivars and clone selections worldwide.
刺槐(Robinia pseudoacacia L.)是一种原产于北美的多用途树种,因其木材耐久、生长迅速、耐场地、产蜜等品质而在世界范围内广泛种植。然而,由于其对本地植物群的潜在入侵性,在其原生范围之外种植该物种时应谨慎。许多国家,特别是匈牙利和中国,几十年来一直在开展关于刺槐的林业研究,以提高刺槐产量、花蜜产量和茎干质量。主要的育种目标,如快速生长,优良的干品质或更高的花蜜产量,已经实现。现有的关于该树种的综述并没有涵盖整个育种研究的历史,因此全面的综述对于识别研究的差距、趋势和缺点变得越来越重要。本研究系统地分析了上个世纪近100篇论文和最近关于蝗虫改良的研究。本研究还详细总结了世界上现有的品种和无性系选择。
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引用次数: 0
FIRE-RES Geo-Catch: a mobile application to support reliable fuel mapping at a pan-European scale FIRE-RES Geo-Catch:一个移动应用程序,支持在泛欧范围内进行可靠的燃料测绘
4区 农林科学 Q2 FORESTRY Pub Date : 2023-10-31 DOI: 10.3832/ifor4376-016
E Kutchartt, JR González-Olabarria, A Trasobares, S de-Miguel, A Cardil, B Botequim, V Vassilev, P Palaiologou, M Rogai, F Pirotti
We present a browser-based App for smartphones that is freely available to end-users for collecting geotagged and oriented photos depicting vegetation biomass and fuel characteristics. Our solution builds on advantages of smartphones, allowing their use as easy sensors to collect data by imaging forest ecosystems. The strength and innovation of the proposed solution is based on the following points: (i) using a low memory footprint App, streaming images and data with as little data-volume and memory as needed; (ii) using JavaScript APIs that can be launched from both a browser or as an installed App, as it applies features such as service workers and Progressive Web App; (iii) storing both image and survey data (geolocation and sensor orientation) internally to the device on an indexed database, and synchronizing the data to a cloud-based server when the smartphone is online and when all other safety tests have been successfully passed. The goal is to achieve properly positioned and oriented photos that can be used as training and testing data for future estimation of the surface fuel types based on automatic segmentation and classification via Machine Learning and Deep Learning.
我们提出了一个基于浏览器的智能手机应用程序,它是免费提供给终端用户收集地理标记和定向照片描绘植被生物量和燃料特性。我们的解决方案建立在智能手机的优势之上,允许它们作为简单的传感器使用,通过成像森林生态系统来收集数据。所提出的解决方案的优势和创新基于以下几点:(i)使用低内存占用的应用程序,流式图像和数据与尽可能少的数据量和内存的需要;(ii)使用可以从浏览器启动或作为已安装的应用程序启动的JavaScript api,因为它应用了service worker和Progressive Web App等功能;㈢在设备内部将图像和调查数据(地理位置和传感器方向)存储在一个索引数据库中,并在智能手机在线并成功通过所有其他安全测试时将数据同步到基于云的服务器。目标是获得正确定位和定向的照片,这些照片可以作为训练和测试数据,用于未来基于机器学习和深度学习的自动分割和分类来估计表面燃料类型。
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引用次数: 0
Use of fallen dead trees by Japanese squirrels within cedar plantations in northeastern Japan 在日本东北部的雪松种植园里,日本松鼠利用倒下的死树
4区 农林科学 Q2 FORESTRY Pub Date : 2023-10-31 DOI: 10.3832/ifor4338-016
S Honda, MU Saito
Deadwood in forests plays a critical role in maintaining the ecological functions. Small mammals use deadwood, and thus deadwood can mitigate the negative impacts of plantation on small mammals. This study focused on fallen dead trees in planted forests, and aimed to verify whether fallen dead trees affect behavioral patterns of Japanese squirrels. To clarify the use of fallen dead trees by Japanese squirrels in a Japanese cedar plantation, we observed squirrel behavior by camera trap surveys at 61 survey sites. Our findings showed that fallen dead trees play a crucial role in the behavior of Japanese squirrels, serving as landmarks for movement, vigilance, resting, and hoarding sites. These functions are critical for the survival of Japanese squirrels, suggesting that fallen dead trees in planted forests have positive impacts on their microenvironment use. The increase of deadwood due to disturbances such as heavy rainfall and snowfall resulting from climate change may provide benefits to arboreal small mammals in poorly managed planted forests. Additionally, leaving some of the deadwood generated during the harvesting process in properly managed forests can improve the quality of habitat for arboreal small mammals.
森林枯木对维持森林生态功能起着至关重要的作用。小型哺乳动物利用枯木,因此枯木可以减轻人工林对小型哺乳动物的负面影响。本研究的重点是人工林中倒下的死树,旨在验证倒下的死树是否会影响日本松鼠的行为模式。为了明确日本杉木人工林中日本松鼠对枯死树木的利用,我们在61个调查点通过相机陷阱调查观察了松鼠的行为。我们的研究结果表明,倒下的死树在日本松鼠的行为中起着至关重要的作用,它们是运动、警惕、休息和囤积场所的标志。这些功能对日本松鼠的生存至关重要,这表明人工林中倒下的死树对它们的微环境利用有积极的影响。由于气候变化引起的暴雨和降雪等干扰而导致的枯木增加可能对管理不善的人工林中的树栖小型哺乳动物有益。此外,将采伐过程中产生的一些枯木留在妥善管理的森林中,可以改善树栖小型哺乳动物的栖息地质量。
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引用次数: 0
Is it needed to integrate mixture degree in Stand Density Management Diagram (SDMD)? 是否需要在林分密度管理图(SDMD)中加入混合度?
4区 农林科学 Q2 FORESTRY Pub Date : 2023-10-31 DOI: 10.3832/ifor4005-016
A Askarieh, I Ruano, F Bravo
Stand density management diagrams (SDMDs) are robust decision-support tools available to forest managers under limited information. SDMDs which are based on empirical models at stand level, graphically represent the temporal relationships among stand density, and different stand variables such as quadratic mean diameter, dominant height, and mean tree volume. They are used to define initial planting spacing or thinning interventions, to meet various management objectives. Nowadays, there is a growing interest in mixed-species forests as an option for adaptive forest management, where they are considered a guarantor to safeguarding a wide variety of ecosystem services within the framework of sustainability. But there is still a lack of knowledge and efficient tools and models for mixed stands such as SDMDs. This study aims to develop an SDMD for Pinus sylvestris L. and Pinus pinaster Ait. mixed stands in the Sierra de la Demanda (Spain) using data from the third Spanish National Forest Inventory. Both species are two of the most important conifers in Europe and the western Mediterranean basin. Different variables can be used to develop an SDMD. In this case, quadratic mean diameter, dominant height, total stand volume, number of trees per hectare, and stand density index were used. These equations were fit by simultaneous fitting including a new variable representing the proportion of both species in the mixed stand. The results of the simultaneous fitting showed the new variable representing the proportion of both species was not significant. Based on that, the SDMD was constructed without including mixture degree. This SDMD can be used by forest managers as an efficient tool to plan thinning operations.
林分密度管理图(sdmd)是森林管理者在有限信息下的可靠决策支持工具。基于林分水平经验模型的sdmd,以图形化的方式表达了林分密度与不同林分变量(二次平均直径、优势高度和平均树积)之间的时间关系。它们用于确定初始种植间距或间伐干预措施,以满足各种管理目标。如今,人们越来越关注混合物种森林作为适应性森林管理的一种选择,它们被认为是在可持续性框架内保护各种生态系统服务的保证。但是,对于sdmd等混合支架,仍然缺乏知识和有效的工具和模型。本研究的目的是开发中国松和中国松的SDMD。利用第三次西班牙国家森林清查的数据,对德曼达山(西班牙)的混交林进行了调查。这两个物种都是欧洲和西地中海盆地最重要的两种针叶树。可以使用不同的变量来开发SDMD。本研究采用二次平均直径、优势高度、总林分积、每公顷乔木数和林分密度指数。通过引入一个代表两种树种在混交林中所占比例的新变量,对这些方程进行了同时拟合。同时拟合的结果表明,代表两种物种比例的新变量不显著。在此基础上,构建了不考虑混合度的SDMD模型。该SDMD可被森林管理者用作规划间伐作业的有效工具。
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引用次数: 0
A new zoning index for detecting areas of biological importance applied to a temperate forest in Central Mexico 一种用于检测生物重要性区域的新分区指数应用于墨西哥中部的温带森林
IF 1.7 4区 农林科学 Q2 FORESTRY Pub Date : 2023-08-31 DOI: 10.3832/ifor4111-016
AN Torres-Díaz, Mdj González-Guillén, HM De Los Santos Posadas, P. Hernández De La Rosa, A. León Merino
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引用次数: 0
Strong relationships between soil and vegetation in reference ecosystems of a riparian Atlantic rainforest in the upper Doce River watershed, southeastern Brazil 巴西东南部多塞河上游大西洋沿岸雨林参考生态系统中土壤与植被之间的密切关系
IF 1.7 4区 农林科学 Q2 FORESTRY Pub Date : 2023-08-31 DOI: 10.3832/ifor4313-016
L. Ramos, D. Negreiros, Silva Ferreira, João Carlos Costa Gomes, D. Paiva, Y. Oki, Wénita De, Souza Justino, Rubens Manoel, dos Santos, R. Aguilar, Y. Nunes, W. Fernandes, M. Carbognani
Habitat loss and fragmentation have been impacting ecosystem services essential for human survival. The Brazilian Atlantic rainforest, a biodiversity hot-spot, has suffered from historical deforestation and, more recently, from an environmental disaster caused by the Fundão dam collapse that released ore tailings drastically affecting a large territory in the Doce River watershed. This work aims to assess the relationships between soil properties and vegetation in a reference ecosystem to provide guidelines for restoration projects in areas affected by the dam collapse. We conducted phytosociological (vegetation characteristic) and soil quality studies in three distinct natural sites and studied different vegetation strata to better understand plant species composition in reference sites along the impacted Doce River and their potential role in community structuring and functioning. We recorded 140 species, 78 in the tree stratum, and 90 in the sapling stratum. Furthermore, our results highlight the influence of soil on floristic composition in the Atlantic rainforest. Small-scale edaphic variation influenced species composition in both sapling and tree strata. We also identified species of the same genus with strong association with the extremes of the edaphic gradient. Therefore, we highlight that studies in various regions along the Doce River watershed are of utmost importance to evaluate the association between species and soils. The particularities of the species are crucial to the effectiveness of restoration processes since this plant-soil correlation should not be extrapolated even within the same genus. This knowledge is of strategic relevance to provide scientific-based guidance for restoring these environments, aiming at the recovery of biodiversity and ecosystem services.
栖息地的丧失和破碎化已经影响到对人类生存至关重要的生态系统服务。巴西大西洋雨林是一个生物多样性的热点地区,历史上曾遭受过森林砍伐,最近又遭受了fund o大坝坍塌造成的环境灾难,该大坝释放的尾矿严重影响了多塞河流域的大片地区。本研究旨在评估参考生态系统中土壤特性与植被之间的关系,为受溃坝影响地区的修复工程提供指导。为了更好地了解多斯河沿岸参考点的植物物种组成及其在群落结构和功能中的潜在作用,我们在三个不同的自然样地进行了植物社会学(植被特征)和土壤质量研究,并研究了不同的植被层。共记录到140种,乔木层78种,幼树层90种。此外,我们的研究结果强调了土壤对大西洋雨林植物区系组成的影响。小尺度的土壤变化对幼树层和乔木层的物种组成都有影响。我们还发现了与极端地形梯度密切相关的同一属物种。因此,我们强调在多泽河流域的不同区域进行研究对于评估物种与土壤之间的关系至关重要。物种的特殊性对恢复过程的有效性至关重要,因为即使在同一属中,这种植物-土壤相关性也不应该被外推。这些知识具有战略意义,可以为恢复这些环境提供基于科学的指导,旨在恢复生物多样性和生态系统服务。
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引用次数: 0
Wood production and nutritional status of Pinus taeda L. in response to fertilization and liming: a meta-analysis of the Americas 美洲杉木产量和营养状况对施肥和石灰化的响应
IF 1.7 4区 农林科学 Q2 FORESTRY Pub Date : 2023-08-31 DOI: 10.3832/ifor4296-016
V. Rodrigues, Acv Motta, JZ Barbosa, TM Ercole, Samantha Prior
Loblolly pine ( Pinus taeda L.) is one of the most planted forest species in the Americas. Since few studies have comprehensively assessed loblolly pine responses to fertilization, the present study performed a meta-analysis of the Americas based on 44 publications (1970-2022) of loblolly pine fertilization under field conditions. In general, fertilization increased root dry matter (+33%), litter (+21%), plant height (+6%), trunk diameter (+9%), wood yield (+30%), and needle concentrations of P (+9%), K (+36%), Ca (+17%), Mg (+14%), and S (+12%). Wood production was higher with residue fertilization, primarily with use of composite residues (cellulosic sludge + ash), compared to mineral fertilization. In regards to mineral applications, wood production was higher when multiple nutrients were added from fertilization and liming operations. Applications at planting (< 1 year) or on established trees (2-8 years), showed similar increases in wood production with higher responses occurring on sandy soils. These factors generally increased needle nutrient concentrations, except for no alteration or slight decreases in N under most conditions. The present study revealed loblolly pine responses to contrasting application strategies, which can help identify efficient fertility management practices for this commercially significant tree species.
火炬松(Pinus taeda L.)是美洲种植最多的森林树种之一。由于很少有研究全面评估火炬松对施肥的反应,本研究基于44份出版物(1970-2022)对美洲火炬松在田间条件下的施肥进行了荟萃分析。总体而言,施肥增加了根干物质(+33%)、凋落物(+21%)、株高(+6%)、树干直径(+9%)、木材产量(+30%)以及P(+9%)、K(+36%)、Ca(+17%)、Mg(+14%)和S(+12%)的针尖浓度。与矿物施肥相比,残渣施肥(主要是复合残渣(纤维素污泥+灰分))的木材产量更高。在矿物施用方面,当施肥和石灰化操作中添加多种营养物质时,木材产量更高。在种植(< 1年)或成熟树木(2-8年)上施用,显示出类似的木材产量增加,在沙质土壤上发生更高的响应。除氮在大多数条件下没有变化或略有下降外,这些因素普遍增加了针叶养分浓度。本研究揭示了火炬松对不同施用策略的响应,有助于确定这种具有重要商业价值的树种有效的肥力管理措施。
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引用次数: 0
Comparison of wood stack volume determination between manual, photo-optical, iPad-LiDAR and handheld-LiDAR based measurement methods 基于手动、光电、iPad-LiDAR和手持lidar测量方法的木材堆体积测定比较
IF 1.7 4区 农林科学 Q2 FORESTRY Pub Date : 2023-08-31 DOI: 10.3832/ifor4153-016
T. Purfürst, F. de Miguel-Díez, F. Berendt, B. Engler, T. Cremer
{"title":"Comparison of wood stack volume determination between manual, photo-optical, iPad-LiDAR and handheld-LiDAR based measurement methods","authors":"T. Purfürst, F. de Miguel-Díez, F. Berendt, B. Engler, T. Cremer","doi":"10.3832/ifor4153-016","DOIUrl":"https://doi.org/10.3832/ifor4153-016","url":null,"abstract":"","PeriodicalId":13323,"journal":{"name":"Iforest - Biogeosciences and Forestry","volume":"40 1","pages":""},"PeriodicalIF":1.7,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86276670","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
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Iforest - Biogeosciences and Forestry
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