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Ecological impact and community perception of Phoenix acaulis (Roxb.) management in Shorea robusta (Garten. f.) forest of Udayapur district, Nepal 尼泊尔乌达亚普尔县 Shorea robusta (Garten. f.) 森林中 Phoenix acaulis (Roxb.) 管理对生态的影响和社区的看法
IF 2.7 Q1 FORESTRY Pub Date : 2024-11-19 DOI: 10.1016/j.tfp.2024.100736
Santosh Ayer , Kishor Prasad Bhatta , Sachin Timilsina , Renuka Khamcha , Janak Airee , Prakash Chaudhary , Yajna Timilsina , Sagar Bhatta , Hari Adhikari
Phoenix acaulis (Roxb.), a common understory shrub in Nepal's Chure region, has remained largely understudied until now. Therefore, this study aims to examine the ecological impact of P. acaulis on Shorea robusta (Gaertn. f.) forest properties and to explore associated community perceptions in S. robusta forest of Udayapur district, Nepal. Stratified random sampling was adopted for this study where P. acaulis density (high, low and absent) was considered as basis of stratification. Altogether, 45 rectangular plots of 10 m x 10 m area (15 each category) were established for regeneration survey and soil sample collection (up to 30 cm). Soil quality index (SQI) method was used for soil quality assessment using indicators on the basis of prior studies conducted in Nepal. Using random sampling, a total of 52 households from the community forest user group were interviewed to gather their insights on the perceived effects of P. acaulis and its management. Highest S. robusta seedling and sapling density was observed in P. acaulis absent area (1132 ± 9.65 ha⁻¹ and 60 ± 0.63 ha⁻¹) where lowest in P. acaulis dense area (548 ± 7.4 ha⁻¹ and 4 ± 0.2 ha⁻¹). Similarly, higher SQI was in areas with high P. acaulis density (0.49) followed by low (0.45) and absent area (0.39). Most respondents advocated for removing P. acaulis from the forest, highlighting significant concerns among stakeholders. Our study suggests a positive impact P. acaulis on soil quality but indicates a negative impact on S. robusta regeneration. Therefore, further research to explore management strategies that balance the positive impact on soil quality with the observed negative influence on regeneration in P. acaulis presence areas is recommended.
Phoenix acaulis(Roxb.)是尼泊尔丘雷地区常见的林下灌木,但到目前为止,对它的研究仍然很少。因此,本研究旨在考察乌达亚普尔地区凤凰木对 Shorea robusta (Gaertn. f.) 森林特性的生态影响,并探讨相关社区对尼泊尔乌达亚普尔地区 S. robusta 森林的看法。本研究采用了分层随机抽样法,将乌头椿密度(高、低和无)作为分层的依据。共建立了 45 个面积为 10 米 x 10 米的矩形地块(每类 15 个),用于再生调查和土壤样本采集(30 厘米以下)。土壤质量指数(SQI)法是在尼泊尔先前研究的基础上,使用指标对土壤质量进行评估。采用随机抽样的方法,对社区森林使用者群体中的 52 个家庭进行了访谈,以收集他们对 P. acaulis 及其管理所产生的影响的看法。在无金针虫地区观察到的 S. robusta 幼苗和树苗密度最高(1132 ± 9.65 ha-¹ 和 60 ± 0.63 ha-¹),而在金针虫密集地区观察到的 S. robusta 幼苗和树苗密度最低(548 ± 7.4 ha-¹ 和 4 ± 0.2 ha-¹)。同样,高密度地区的 SQI 较高(0.49),其次是低密度地区(0.45)和无密度地区(0.39)。大多数受访者主张从森林中移除 P. acaulis,这凸显了利益相关者的重大关切。我们的研究表明 P. acaulis 对土壤质量有积极影响,但对 S. robusta 的再生有消极影响。因此,建议进一步研究探索管理策略,以平衡对土壤质量的积极影响和观察到的对 P. acaulis 存在区域再生的消极影响。
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引用次数: 0
The efficacy of the semiochemical repellent verbenone to reduce ambrosia beetle attack on healthy and Ceratocystis-infested ‘ōhiʻa trees 半化学驱虫剂马鞭草酮减少伏甲对健康和受 Ceratocystis 侵染的'ōhiʻa 树的侵袭的功效
IF 2.7 Q1 FORESTRY Pub Date : 2024-11-18 DOI: 10.1016/j.tfp.2024.100735
Kylle Roy , Dan Mikros , Dong H. Cha , Ellen J. Dunkle , Jennifer Juzwik , Matthew Ginzel
The Ceratocystis fungal disease complex, rapid ʻōhiʻa death (ROD), has killed over one million ʻōhiʻa (Metrosideros polymorpha), the keystone tree species of Hawaiʻi. The causal fungi can be spread by invasive ambrosia beetles (Coleoptera: Curculionidae) through fungal inoculum found on their bodies and in the frass they produce. Thus, there is a critical need to manage beetle attack on ʻōhiʻa trees to curtail subsequent pathogen spread and disease development. In this experiment at Waiākea Forest Reserve, we tested the potential of the semiochemical repellent, verbenone, in a commercial formulation, to protect healthy and ROD-affected ʻōhiʻa from ambrosia beetle attack in each of the 2022 and 2023 field seasons. Landing rates of ambrosia beetles on healthy and diseased trees were quantified over 16 weeks each year, using sticky traps on ethanol-baited trees that also received either a low (72 g) or high (108 g) dose of verbenone or untreated controls. In addition, we used gas-chromatography mass-spectrometry (GC–MS) to measure verbenone emission over 16 weeks in 2022. We found that the low dose of verbenone is the most effective and economical application to reduce beetle landing on healthy ʻōhiʻa trees and the high dose may be needed to reduce attraction to diseased ʻōhiʻa. Despite a large decrease in verbenone emission levels by week eight, the low dose effectively reduced beetle captures on healthy trees for 14 weeks and the high dose reduced landing rates on diseased trees for 10–14 weeks. Our results indicate verbenone may significantly lower ambrosia beetle attack on ʻōhiʻa, and thus, lead to reduction in the spread of ROD.
夏威夷的主要树种夏威夷杉(Metrosideros polymorpha)已因 Ceratocystis 真菌病复合体--夏威夷杉快速死亡(ROD)--死亡超过一百万株。病原真菌可通过入侵的伏甲(鞘翅目:Curculionidae)身上及其产生的虫粪中的真菌接种体传播。因此,亟需管理甲虫对ʻōhiʻa树的侵袭,以遏制随后的病原体传播和疾病发展。在怀阿凯亚森林保护区进行的这项实验中,我们测试了商业配方中的半化学驱虫剂马鞭草酮在2022年和2023年田间季节保护健康和受ROD影响的ʻōhiʻa免受伏甲侵袭的潜力。在每年的 16 周内,我们使用粘性诱捕器对健康和患病树木上的伏甲降落率进行了量化,这些树木也接受了低剂量(72 克)或高剂量(108 克)的马鞭草酮或未经处理的对照。此外,我们还使用气相色谱质谱法(GC-MS)测量了 2022 年 16 周的马鞭草酮排放量。我们发现,低剂量的马鞭草酮是减少甲虫落在健康ʻōhiʻa树上的最有效、最经济的方法,而高剂量的马鞭草酮则可能是减少甲虫对有病的ʻōhiʻa树的吸引所必需的。尽管到第八周时马鞭草酮的排放水平大幅下降,但低剂量能在 14 周内有效减少甲虫在健康树木上的捕获量,而高剂量则能在 10-14 周内减少甲虫在病树上的降落率。我们的研究结果表明,马鞭草酮可显著降低伏甲对ʻōhiʻa的攻击,从而减少 ROD 的传播。
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引用次数: 0
Examining the impacts of urban tree structure and condition on adult depression in the United States 研究美国城市树木结构和状况对成人抑郁症的影响
IF 2.7 Q1 FORESTRY Pub Date : 2024-11-17 DOI: 10.1016/j.tfp.2024.100734
Lalita Dhal , Jason Gordon , Alexander Young , Mukti R. Subedi , Katie Jennings , Lucie Lepine , Thomas Brandeis , Puneet Dwivedi
Urbanization can stimulate economic growth through industrialization; however, urbanization can also lead to dense development and high population densities. Both factors cause stress and negatively impact the quality of life of inhabitants living in cities. In response, a growing body of research has examined the association between urban trees and human health, in general and psychological well-being, in particular. Although this literature has tended to focus on tree canopy broadly, questions remain regarding the effects of specific tree characteristics (e.g., crown dieback, tree with damage, and leaf area). This study examines the association between adult depression and tree structure and condition metrics in ten cities across the United States. Adult depression data were obtained from the Centers for Disease Control and Prevention, and individual tree structure and condition data were calculated using the Urban Forest Inventory and Analysis Program. The linear mixed-effects model showed a positive relationship between depression and tree crown-dieback percentage (p = 0.03). Understanding the interplay between individual tree characteristics and adult depression can inform urban planning, design, and maintenance practices.
城市化可以通过工业化刺激经济增长;然而,城市化也会导致密集发展和高人口密度。这两个因素都会对城市居民的生活质量造成压力和负面影响。为此,越来越多的研究探讨了城市树木与人类健康,特别是心理健康之间的关系。尽管这些文献倾向于从广义上关注树冠,但对于特定树木特征(如树冠枯死、树木受损和叶面积)的影响仍存在疑问。本研究考察了美国十个城市中成年人抑郁与树木结构和状况指标之间的关联。成人抑郁数据来自美国疾病控制和预防中心,单棵树木的结构和状况数据则通过城市森林资源调查和分析程序计算得出。线性混合效应模型显示,抑郁症与树冠倒伏百分比之间存在正相关关系(p = 0.03)。了解树木个体特征与成株郁闭度之间的相互作用,可以为城市规划、设计和维护实践提供参考。
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引用次数: 0
Multi-criteria decision analysis using GIS in assessing suitability for a solar-powered biomass briquetting plant in the Gambella region, Ethiopia 利用地理信息系统进行多标准决策分析,评估埃塞俄比亚甘贝拉地区太阳能生物质压块厂的适宜性
IF 2.7 Q1 FORESTRY Pub Date : 2024-11-16 DOI: 10.1016/j.tfp.2024.100732
Koat Jing Riek , Wondwossen Bogale Eremed
Biomass briquetting presents a promising avenue for alternative cooking energy, enhancing livelihoods, and fostering sustainable development. This study underscores the abundant biomass resources in the Gambella region, primarily composed of savanna and woody savanna, which encompass 77 % of the land area, consisting mainly of forest and agricultural waste. Leveraging these resources can ensure a renewable and sustainable cooking energy supply, aligning with Sustainable Development Goals (SDGs) related to clean energy and environmental conservation. Consequently, this thesis endeavors to identify optimal sites for establishing solar-powered non-wooden biomass briquetting plants across the region. Various spatial and non-spatial datasets, including solar radiation, slope, land use/land cover (LULC), and proximity to roads, rivers, and towns, were utilized for area delineation and mapping. Parameters such as solar radiation, slope, and river streams were derived from 30 m resolution digital elevation models (DEMs). The Analytical Hierarchy Process (AHP) was employed to calculate criteria weights for overlay analysis, resulting in a suitable solar farm site map. The study reveals that land use/land cover exerts the most significant influence, with a weight of 46.58 %, followed by solar radiation strength (20.42 %), slope (15.52 %), proximity to roads (8.26 %), proximity to rivers (5.46 %), and proximity to towns (3.77 %). By integrating parameter suitability and weight assignment in ArcGIS spatial analysis, a suitability map was generated, highlighting highly suitable areas predominantly along the North-South axis through central Gambella. This area covers approximately 12,094.49 km², constituting 47 % of the study area. These findings have practical implications, as they can inform local policymakers and actors in strategically addressing the region's dire need for sustainable cooking energy. This contribution can support the development of localized renewable energy strategies and promote long-term energy security in line with local energy policies.
生物质压块是替代烹饪能源、改善生计和促进可持续发展的一条大有可为的途径。这项研究强调了甘贝拉地区丰富的生物质资源,主要由热带稀树草原和木本稀树草原组成,占土地面积的 77%,主要由森林和农业废弃物构成。利用这些资源可以确保可再生和可持续的烹饪能源供应,符合与清洁能源和环境保护相关的可持续发展目标(SDGs)。因此,本论文致力于确定在该地区建立太阳能非木质生物质压块厂的最佳地点。本论文利用各种空间和非空间数据集(包括太阳辐射、坡度、土地利用/土地覆盖(LULC)以及与道路、河流和城镇的距离)进行区域划分和绘图。太阳辐射、坡度和河流等参数来自 30 米分辨率的数字高程模型(DEM)。采用层次分析法(AHP)计算叠加分析的标准权重,最终绘制出合适的太阳能发电场选址图。研究表明,土地利用/土地覆盖影响最大,权重为 46.58%,其次是太阳辐射强度(20.42%)、坡度(15.52%)、靠近道路(8.26%)、靠近河流(5.46%)和靠近城镇(3.77%)。通过在 ArcGIS 空间分析中整合参数适宜性和权重分配,生成了适宜性地图,突出显示了主要沿甘贝拉中部南北轴线的高度适宜地区。该区域面积约为 12,094.49 平方公里,占研究区域的 47%。这些发现具有实际意义,因为它们可以为当地决策者和行动者提供信息,帮助他们从战略上解决该地区对可持续烹饪能源的迫切需求。这有助于支持制定地方可再生能源战略,并根据地方能源政策促进长期能源安全。
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引用次数: 0
Identifying key actors, barriers and opportunities to lead a transition towards sustainable forest management: an application to the Basque Country, Spain 确定向可持续森林管理过渡的主要参与者、障碍和机遇:在西班牙巴斯克地区的应用
IF 2.7 Q1 FORESTRY Pub Date : 2024-11-16 DOI: 10.1016/j.tfp.2024.100727
Noelia Zafra-Calvo , Unai Ortega , Unai Sertutxa , Céline Moreaux
The forestry sector is essential for achieving a transition towards sustainability because of the opportunities associated with the transformation of their management and practices. However, forest plantation management is characterised not only by ecological interactions but also by the complex dynamics that arise from the interaction of multiple actors, their knowledge and worldviews, and how actors can overcome barriers and lobby for their values and interests to be represented in policies and management. We illustrate this via a case study: the Basque Country in Spain. Drawing on 33 qualitative in-depth semistructured interviews conducted in 2022 and 2023 with a wide variety of forestry actors, we aim to a) identify who the potential actors are that can trigger a change toward sustainable forest management, b) explore actors’ interactions and knowledge interchange that can foster a transformation toward sustainable forest management, and c) understand the opportunities and barriers that the main actors face to achieve sustainable forest plantation management. Our results show that a) those who may have the ability to induce a change in the forestry sector of the Basque Country are landowners, rangers and private sector companies; b) mutual learning happens in the day-to-day practices of forest plantation management while academic knowledge does not reach policy and practice; and c) barriers are related to managerial, political and individual dimensions that impair the way towards “close to nature” management and a “circular bioeconomy”, such as a perceived lack of supporting policies and knowledge, as well as increasing land abandonment. Opportunities to pose a potential way forward are, among others, forest plantations of native species providing high-quality timber, and opening access to additional markets, such as the ones funding the diversity of contributions that forest plantations may bring to people. Collaboration to overcome barriers for small-scale forest plantation management and actions to promote a stronger feeling of attachment to natural forests and forest plantations are essential to achieve sustainable forest management in the Basque Country.
林业部门对于实现向可持续性过渡至关重要,因为其管理和实践的转变带来了机遇。然而,人工林管理的特点不仅在于生态互动,还在于多方参与者的互动、他们的知识和世界观所产生的复杂动态,以及参与者如何克服障碍并游说政策和管理部门体现他们的价值观和利益。我们通过西班牙巴斯克地区的案例研究来说明这一点。我们在 2022 年和 2023 年对 33 名林业参与者进行了深入的半结构式定性访谈,目的是:a) 确定谁是能够引发可持续森林管理变革的潜在参与者;b) 探索参与者之间的互动和知识交流,以促进向可持续森林管理的转变;c) 了解主要参与者在实现可持续人工林管理方面面临的机遇和障碍。我们的研究结果表明:a) 有能力促使巴斯克地区林业部门进行变革的是土地所有者、护林员和私营企业;b) 相互学习发生在人工林管理的日常实践中,而学术知识并没有深入到政策和实践中;c) 障碍与管理、政治和个人因素有关,这些因素阻碍了 "亲近自然 "管理和 "循环生物经济 "的发展,例如人们认为缺乏支持政策和知识,以及土地荒芜现象日益严重。除其他外,提供优质木材的本地物种人工林,以及开辟更多的市场,例如为人工林可能为人类带来的各种贡献提供资金,这些都是潜在的前进道路。为克服小规模植树造林管理方面的障碍而开展的合作,以及为促进人们对天然林和植树造林的感情而采取的行动,对于实现巴斯克地区的可持续森林管理至关重要。
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引用次数: 0
Variable associations of annual biomass increment with age, latitude and germination year in four tree species in Sweden 瑞典四种树种的年生物量增量与年龄、纬度和发芽年份的不同关系
IF 2.7 Q1 FORESTRY Pub Date : 2024-11-15 DOI: 10.1016/j.tfp.2024.100733
Anders Forsman , Jonatan Isaksson , Markus Franzén , Johannes Edvardsson
Forests are pivotal for biodiversity, food webs, and human economies, and as carbon sinks their climate change mitigation potential is undisputed. However, whether trees continue to efficiently accumulate biomass at an increasing rate with age, how growth trajectories respond to climate change, and vary with latitude at species range margins is under debate. Here, we combine tree-ring data with biometric equation modeling to analyze how annual biomass increment varies according to tree age, species, latitude, and germination year. We generated 26,225 estimates of annual biomass increments for 136 individual trees, representing two evergreen gymnosperm conifer species (Picea abies (L.) H.Karst., and Pinus sylvestris L.) and two deciduous angiosperm species (Quercus spp. L. and Fagus sylvatica L.). Our dataset includes some old trees (range 150 - 405 years), and samples from locations spanning >10° latitude (55.0 - 66.3 °N) in Sweden. Annual biomass increments varied considerably between species, years and among individual trees within stands. On average, biomass increment remained positive throughout the lifespan across trees, species, and latitudes. Age-specific biomass increment was higher in the deciduous than in the evergreen species and declined with increasing latitude within species. For spruce and beech, biomass increment increased significantly with germination year, possibly reflecting faster growth in recent times in response to a warmer climate. The findings have implications for forestry practices aimed at productivity, biodiversity conservation, and climate change mitigation.
森林对生物多样性、食物网和人类经济至关重要,作为碳汇,其减缓气候变化的潜力毋庸置疑。然而,树木是否会随着树龄的增长而持续有效地积累生物量,其生长轨迹如何应对气候变化,以及在物种分布边缘随纬度的变化而变化,这些问题都还在争论之中。在此,我们将树环数据与生物计量方程建模相结合,分析了年生物量增量如何随树龄、树种、纬度和发芽年份而变化。我们为 136 棵树生成了 26,225 个年生物量增量估算值,这些树代表了两种常绿裸子植物针叶树(Picea abies (L.) H.Karst. 和 Pinus sylvestris L.)和两种落叶被子植物(Quercus spp. L. 和 Fagus sylvatica L.)。我们的数据集包括一些老树(树龄在 150 - 405 年之间)和来自瑞典纬度 10°(北纬 55.0 - 66.3°)各地的样本。不同树种、不同年份以及不同林分中不同树木的年生物量增量差异很大。平均而言,不同树木、不同物种和不同纬度地区的生物量增量在整个生命周期内都保持正值。落叶树种的特定年龄生物量增量高于常绿树种,并且随着树种纬度的增加而下降。云杉和山毛榉的生物量增量随发芽年份的增加而显著增加,这可能反映了近期气候变暖导致的快速生长。这些发现对旨在提高生产力、保护生物多样性和减缓气候变化的林业实践具有重要意义。
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引用次数: 0
The socioeconomic dimension of forest therapy: A contribution to human well-being and sustainable forest management 森林疗法的社会经济层面:对人类福祉和可持续森林管理的贡献
IF 2.7 Q1 FORESTRY Pub Date : 2024-11-12 DOI: 10.1016/j.tfp.2024.100731
Carsten Mann , Mónica Hernández-Morcillo , Harumi Ikei , Yoshifumi Miyazaki
Forests provide a variety of ecosystem services that contribute in various ways to human well-being. In times of land-use pressures, urbanisation, and nature degradation, the societal demand for forest-based therapeutic uses is increasing. Although nature-related therapies and the beneficial effects of nature on health and well-being are an old concept in cultures such as Asia and, more recently, Europe, forest therapy offers are increasingly taking hold in the forest recreation landscape. This Commentary paper identifies recent forest therapy offers and research in Asia and Europe that focus on the therapeutic effects of forests and examine their underlying rationales, practices, and status. In particular, we elaborate the socioeconomic potential of forest therapy to contribute to human health and sustainable forest management. Based on a scoping review on forest therapy offers and research, we found that countries such as Japan and South Korea are ahead of European countries in the professionalization of forest therapy offers and respective studies. While the number of studies that demonstrate the positive health benefits of forests are increasing, there is a lack of understanding the link with forest management approaches and forest and health policies. A lack of socioeconomic evaluation hinders its successful integration into policy frameworks, and prevents its use as an alternative forestry product or preventive medical treatment. For forest therapy to become part of the forestry portfolio and a medical alternative, we recommend:
  • Interdisciplinary research approaches and new actor alliances that link societal demands for forest therapy with insights from forest management and medical health research,
  • Transdisciplinary research and multi-actor approaches to link insights from forest and medical research with practitioners’ skills for forest management, service design, and communication,
  • To identify trade-offs and conflict potentials with forest therapy, for example in relation to timber production or questions of insurance in case of injuries by falling branches etc., that allow to develop integrated and sustainable solutions,
  • Policy backup and economic support for forest managers and owners to compensate for their efforts to manage their forests for therapeutic purposes
  • Recognition of forest therapy as an explicit part of the forestry portfolio and an alternative medical offer for clinical treatments.
森林提供各种生态系统服务,以各种方式为人类福祉做出贡献。在土地使用压力、城市化和自然退化的时代,社会对森林疗法的需求日益增长。虽然与自然相关的疗法以及自然对健康和幸福的有益影响在亚洲等文化中是一个古老的概念,最近在欧洲也是如此,但森林疗法在森林休闲景观中正日益占据主导地位。本评论文章介绍了亚洲和欧洲最近推出的森林疗法和研究,重点关注森林的治疗效果,并研究其基本原理、做法和现状。我们特别阐述了森林疗法在促进人类健康和可持续森林管理方面的社会经济潜力。根据对森林疗法的提议和研究进行的范围审查,我们发现日本和韩国等国家在森林疗法提议和相关研究的专业化方面领先于欧洲国家。虽然证明森林对健康有益的研究越来越多,但人们对森林管理方法与森林和健康政策之间的联系还缺乏了解。缺乏社会经济评估阻碍了将森林疗法成功纳入政策框架,也阻碍了将森林疗法用作替代林业产品或预防性医疗。为使森林疗法成为林业产品组合的一部分和医疗替代品,我们建议:-采用跨学科研究方法和新的行为者联盟,将社会对森林疗法的需求与森林管理和医疗健康研究的见解联系起来;-采用跨学科研究和多行为者方法,将森林和医疗研究的见解与从业人员的森林管理、服务设计和沟通技能联系起来;-确定森林疗法的权衡和冲突潜力,例如与木材生产或树枝坠落造成伤害时的保险问题有关的权衡和冲突潜力、承认森林疗法是林业产品组合的明确组成部分,也是临床治疗的替代医疗方案。
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引用次数: 0
Knowledge and attitudes about genetically advanced loblolly pine seedlings among foresters and family forest landowners in Georgia, United States 美国佐治亚州林业工作者和家庭林地所有者对基因先进的小叶松幼苗的认识和态度
IF 2.7 Q1 FORESTRY Pub Date : 2024-11-10 DOI: 10.1016/j.tfp.2024.100722
Matt Pruitt , Carolina Berget , Puneet Dwivedi , Parag Kadam
This study aims to estimate the adoption rate of genetically advanced loblolly pine (Pinus taeda) seedlings and better understand the factors influencing seedling choice among family forest landowners and consulting foresters in Georgia, a major forestry state in the Southern United States. We conducted two online surveys, one for landowners and one for registered foresters in Georgia. Our findings reveal that the adoption rate, self-reported knowledge, and positive perceptions of genetically advanced loblolly pine seedlings were high among respondents of both surveys. The adoption rate was 13.5 % of all managed forestlands by foresters (29.3 % for managed loblolly pine stands) and 18.0 % of all the forestlands (37.4 % of managed loblolly pine stands) owned by family forest landowners. Reasons for adopting among both groups included fast growth and favorable financial outcomes. However, barriers to adoption include cost, beliefs that other factors are equally or more important than the genetics of seedlings, and the need for more evidence. Furthermore, a high proportion of each group expressed an interest in adopting genetically advanced seedlings for increasing carbon revenue over time. Our findings suggest that more research about the related benefits is needed to increase the adoption of genetically advanced loblolly pine seedlings. We also found that communicating these benefits using trusted sources is also necessary. Our study will feed into the growing movement for using better genetics to improve forest productivity and reduce forest health issues in Georgia and beyond, especially on family forestlands, as they supply the majority of roundwood and other forest-based ecosystem services.
本研究旨在估算美国南部主要林业州佐治亚州的家庭林地所有者和咨询林务人员对基因先进的龙柏(Pinus taeda)树苗的采用率,并更好地了解影响树苗选择的因素。我们进行了两次在线调查,一次针对土地所有者,另一次针对佐治亚州的注册林务人员。我们的调查结果显示,两次调查的受访者对先进基因小叶松种苗的采用率、自我报告的知识和积极看法都很高。在林务人员管理的所有林地中,采用率为 13.5%(管理的小叶松林地为 29.3%),在家庭林地所有者拥有的所有林地中,采用率为 18.0%(管理的小叶松林地为 37.4%)。这两类林地采用这种技术的原因包括生长速度快和经济效益好。然而,采用的障碍包括成本、认为其他因素与树苗遗传同样重要或更重要以及需要更多证据。此外,每组中都有很高比例的人表示有兴趣采用基因先进的种苗,以逐步增加碳收入。我们的研究结果表明,需要对相关益处进行更多研究,以提高对基因先进的小叶松树苗的采用率。我们还发现,利用可信来源宣传这些益处也很有必要。我们的研究将推动佐治亚州及其他地区利用更好的遗传学提高森林生产力和减少森林健康问题的运动不断发展,特别是在家庭林地,因为它们提供了大部分圆木和其他基于森林的生态系统服务。
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引用次数: 0
Impact of prescribed fire on fungal communities in Scots pine (Pinus sylvestris) forests in Mediterranean transitional zones 规定用火对地中海过渡区苏格兰松林真菌群落的影响
IF 2.7 Q1 FORESTRY Pub Date : 2024-11-10 DOI: 10.1016/j.tfp.2024.100724
Natalia Cuberos , Ignacio Sanz-Benito , Tatek Dejene , Pablo Martín-Pinto
The Mediterranean region is renowned for its natural susceptibility to wildfires. In recent years, this risk has intensified due to various factors, including climate change and rural abandonment. Castilla y Leon stands out as one of the most severely impacted areas grappling with rural exodus. This evolving scenario accentuates the urgency of implementing forest management strategies to mitigate the escalating threat of wildfires, with a primary focus on fuel reduction. Although prescribed fires represent an efficient and cost-effective tool for wildfire prevention, they remain a contentious subject in Europe. Fungi not only contribute significantly to rural economies but also play a pivotal role in maintaining the equilibrium of forest ecosystems. The main objective of this study was to examine the effects of prescribed burning on Pinus sylvestris soils, with a specific focus on the recovery of fungal populations after such fires. To assess the short-term effects of prescribed fires on soil fungal communities, we collected soil samples from both burned and unburned plots 12 months post-burning to perform genomic DNA analyses. Our findings indicate that prescribed burning does not significantly alter fungal diversity or composition, with only litter saprotrophs showing significantly higher levels of abundance in burned areas than in unburned areas. Valuable edible fungi persisted post-burning, suggesting that prescribed burning could be used to reduce wildfire fuel loads while preserving fungal biodiversity and valuable edible fungi. These results advocate for the use of prescribed burning as a viable, myco-friendly forest management practice, offering a balance between fire prevention and ecological conservation.
地中海地区因其天然易受野火影响而闻名于世。近年来,由于气候变化和农村人口外流等各种因素,这一风险不断加剧。卡斯蒂利亚-莱昂(Castilla y Leon)是受影响最严重的地区之一,该地区正在努力解决农村人口外流问题。这种不断变化的情况凸显了实施森林管理战略以缓解不断升级的野火威胁的紧迫性,其主要重点是减少燃料。尽管预设火种是一种高效且具有成本效益的野火预防工具,但在欧洲仍是一个有争议的话题。真菌不仅对农村经济贡献巨大,而且在维持森林生态系统平衡方面也发挥着关键作用。这项研究的主要目的是考察规定燃烧对欧洲赤松土壤的影响,特别关注火灾后真菌种群的恢复情况。为了评估烧荒对土壤真菌群落的短期影响,我们在烧荒后 12 个月收集了烧荒地块和未烧荒地块的土壤样本,进行基因组 DNA 分析。我们的研究结果表明,规定的焚烧并不会显著改变真菌的多样性或组成,只有枯落物噬菌体在焚烧区域的丰度明显高于未焚烧区域。有价值的可食用真菌在焚烧后仍然存在,这表明可以利用规定的焚烧来减少野火的燃料负荷,同时保护真菌的生物多样性和有价值的可食用真菌。这些结果主张将规定燃烧作为一种可行的、对真菌友好的森林管理方法,在防火和生态保护之间取得平衡。
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引用次数: 0
Are prevailing policy tools effective in conserving ecosystem services under individual private tenure? Challenges and policy gaps in a rapidly urbanizing region 现行的政策工具在保护个人私人保有的生态系统服务方面是否有效?快速城市化地区面临的挑战和政策缺口
IF 2.7 Q1 FORESTRY Pub Date : 2024-11-09 DOI: 10.1016/j.tfp.2024.100730
Behnoosh Abbasnezhad , Jesse B. Abrams
Forestlands worldwide provide vital ecosystem services (ES) essential for human well-being yet are facing rising threats from land-use/land-cover change. Land ownership patterns and property rights significantly influence land management practices and the protection of ES. Family forest owners (FFOs) are the targets of numerous conservation policies and programs, many of which are built around economic incentives and market-based instruments. This study combines a mail-administered survey with land use-land cover change modeling results to better understand whether FFOs plan to convert their properties, what motivates FFOs to adopt prevailing policies, and what other conservation policy models might be attractive. Our research focuses on FFOs whose parcels are identified as having high conservation values in a rapidly urbanizing watershed. Survey results show strong motivations among FFOs to protect biodiversity, wildlife habitat, and ES while expressing concerns about property taxes, regulations, and land-use threats. Our analysis indicates a relationship between anticipated land transfers or residential development and predicting factors including parcel size, government regulations, and tax concerns. Results reveal a gap between the design of existing conservation programs and FFOs’ interest in adoption. Limited interest in conservation easements and carbon markets underscores the need for more flexible conservation tools aligned with landowner preferences. Moreover, FFOs’ considerable awareness of existing conservation programs, alongside ongoing forest loss in the study region, underscores enrollment obstacles such as minimum-size eligibility requirements, thereby highlighting inadequacy of current frameworks in incentivizing long-term conservation outcomes. The findings from the studied watershed may have broader relevance for regions with similar land ownership patterns, land use dynamics, and political contexts worldwide.
世界各地的林地为人类福祉提供至关重要的生态系统服务(ES),但它们正面临着土地利用/土地覆盖变化带来的日益严重的威胁。土地所有权模式和产权显著影响土地管理做法和生态系统保护。家庭森林所有者是众多保护政策和计划的目标,其中许多政策和计划都是围绕经济激励和基于市场的手段制定的。本研究将邮件管理调查与土地利用-土地覆盖变化模型结果相结合,以更好地了解农民是否计划转换其财产,是什么促使农民采取现行政策,以及其他哪些保护政策模式可能具有吸引力。我们的研究重点是在快速城市化的流域中,其地块被确定为具有高保护价值的ffo。调查结果显示,在对财产税、法规和土地利用威胁表示担忧的同时,ffo有强烈的动机保护生物多样性、野生动物栖息地和生态环境。我们的分析表明,预期的土地转让或住宅开发与包括地块大小、政府法规和税收问题在内的预测因素之间存在关系。结果显示,现有保护计划的设计与ffo对采用的兴趣之间存在差距。人们对保护地役权和碳市场的兴趣有限,这突显出需要更灵活的保护工具,与土地所有者的偏好保持一致。此外,ffo对现有保护项目的充分认识,以及研究地区正在发生的森林损失,凸显了最小规模资格要求等注册障碍,从而凸显了当前框架在激励长期保护成果方面的不足。研究流域的发现可能对世界范围内具有类似土地所有权模式、土地利用动态和政治背景的地区具有更广泛的相关性。
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Trees, Forests and People
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