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A further step forward 向前迈进一步
Pub Date : 2017-05-25 DOI: 10.12899/asr-1351
P. Corona
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引用次数: 2
Effects of potting mixture on the growth of seedlings of Entandrophragma cylindricum (SPRAGUE) and Tamarindus the Growth of Seedlings of Entandrophragma cylindricum (SPRAGUE) and Tamarindus indica L 盆栽混合料对柱状石竹和罗望子幼苗生长的影响
Pub Date : 2017-05-25 DOI: 10.12899/ASR-1313
F. N. Ogana, E. Aigbedion, W. W. Modugu
The study describes the effects of biochar and NPK fertilizer on Entandrophragma cylindricum and Tamarindus indica seedlings in the nursery of the Department of Forestry and Wildlife, University of Benin, with a view to evaluating the seedling growth response to the quantity of biochar and the level of fertilizer applied. The potting mixtures used were soil only which is the control, mixture of soil and biochar, mixture of soil, biochar and fertilizer, mixture of soil and fertilizer. The seeds of Entandrophragma cylindricum and Tamarindus indica were sourced for and planted. Transplanting was carried out for germinated seeds until the required number of seedlings needed for the experiment was obtained. Measurements were taken at one week interval. Seedlings were evaluated for ten weeks for different growth variables. The experiment was a completely randomized design. Result indicates that there was no significant difference in the growth variables except for stem height of Entandrophragma cylindricum at 5% level. Although, there were marginal differences in the growth variables recorded. Other silvicultural practices that would promote the growth of Entandrophragma and Tamarindus should be considered. Few problems were encountered especially those of insect and pest infestation.
本研究描述了生物炭和NPK肥料对贝宁大学林业和野生动物系苗圃中的柱状Enthandrogram和Tamarindus indica幼苗的影响,以评估幼苗对生物炭用量和施肥水平的生长反应。所用的盆栽混合物仅为对照土壤、土壤和生物炭的混合物、土壤、生物炭和肥料的混合物、土肥混合物。对柱状党参和籼稻种子进行了采种。对发芽的种子进行移植,直到获得实验所需的幼苗数量。每隔一周进行一次测量。对不同生长变量的幼苗进行为期10周的评估。这个实验是一个完全随机的设计。结果表明,除茎高在5%水平外,其他生长变量均无显著差异。尽管如此,所记录的增长变量存在边际差异。应考虑其他有助于Entandorphragma和Tamarindus生长的造林做法。遇到的问题很少,特别是虫害。
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引用次数: 0
Tree-oriented silviculture for growing valuable broadleaved tree species in Turkey oak coppices 在土耳其栎树林中种植有价值阔叶树种的林木导向造林
Pub Date : 2016-11-28 DOI: 10.12899/asr-1198
D. Giuliarelli, A. Alivernini, P. Corona, Elena Mingarelli, F. Pelleri, F. Chianucci
Valuable broadleaved tree species can play an important role in mixed-forest management; in these forests, silviculture may play an important role in getting high value timber. This paper illustrates a tree-oriented silviculture approach with an application in a Turkey oak coppice stand in Central Italy. This silvicultural approach has been developed in the last decades in France, Germany, Switzerland. The rationale behind the tree-oriented approach is to select a number of target sporadic tree species with valuable timber and to support their growth through repeated thinning from above. We tested the effectiveness of this silviculture approach as an alternative to customary coppice management in Italy, which is traditionally focused on the dominant tree species and does not consider valuable broadleaved tree species. The two silviculture approaches (tree-oriented and customary coppicing) were compared through a financial evaluation of the economic convenience of the two alternatives in a Turkey oak coppice stand in Central Italy
有价值的阔叶树种可在混交林经营中发挥重要作用;在这些森林中,造林可能在获得高价值木材方面发挥重要作用。本文介绍了一种以树木为导向的造林方法,并在意大利中部的土耳其栎林林中进行了应用。这种造林方法是在过去几十年里在法国、德国和瑞士发展起来的。以树木为导向的方法背后的基本原理是选择一些有价值木材的目标散发性树种,并通过从上面反复间伐来支持它们的生长。我们测试了这种造林方法作为意大利传统灌木林管理的替代方法的有效性,传统的灌木林管理侧重于优势树种,而不考虑有价值的阔叶树种。在意大利中部的土耳其橡木林场,通过对两种替代方案的经济便利性进行财务评估,比较了两种造林方法(以树木为导向和习惯造林)
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引用次数: 0
Coppice forests, or the changeable aspect of things, a review 灌木林,还是事物多变的一面,回顾一下
Pub Date : 2016-11-28 DOI: 10.12899/ASR-1286
G. Fabbio
Coppiced forests were the main source of firewood, brushwood, and charcoal for rural and urban settlements’ basic needs such as cooking food and domestic heating for thousands of years and up to the mid-20 th century in many European countries and, specifically, in Mediterranean countries. The global diffusion of fossil fuels reduced this leadership and the coppice system turned, to some extent, to a reminder of the past. Nowadays, the ongoing global changes and the related green-economy issues call for resilient systems and effective bio-energy producers. These issues have caused a second turning point and the coppice has returned fifty years later to play a role. A review of the silvicultural system has been carried out with a special focus on the changes which have occurred in between, taking Italy as a consistent case-study. The analysis is mainly framed upon the long-term research trials established by the CREA-Forestry Research Centre in the late sixties, to find out adaptive management strategies and overcome the system’s crisis. The findings and further knowledge achieved so far on the dynamics and functioning of coppice forests in the outgrown phase, both as natural evolutive patterns and silviculture-driven processes, are highlighted in this paper. They provide useful tools to handle the management shift regarding forthcoming issues, i.e. the current role attributable to the coppice system within the changing environment and the renewable energy demand. The basic features of each management area and their complementarities within the current framework are outlined.
几千年来,一直到20世纪中叶,在许多欧洲国家,特别是在地中海国家,被覆盖的森林是农村和城市住区的基本需要,如烹饪食物和家庭取暖的柴火、灌木和木炭的主要来源。化石燃料的全球扩散削弱了这种领导地位,森林系统在某种程度上变成了对过去的提醒。如今,持续的全球变化和相关的绿色经济问题需要有弹性的系统和有效的生物能源生产商。这些问题引起了第二次转折点,五十年后,coppice又回来发挥作用。对造林系统进行了审查,特别注重其间发生的变化,并将意大利作为一贯的个案研究。本文的分析主要是基于中国林业研究中心在60年代末建立的长期研究试验,以寻找适应性管理策略并克服系统危机。本文重点介绍了迄今为止关于灌木林在生长阶段的动态和功能的发现和进一步的知识,包括自然进化模式和森林栽培驱动的过程。它们提供了有用的工具来处理关于即将到来的问题的管理转变,即在不断变化的环境和可再生能源需求中,森林系统的当前作用。概述了每个管理领域的基本特征及其在当前框架内的互补性。
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引用次数: 24
Use of innovative groundcovers in Mediterranean afforestations: aerial and belowground effects in hybrid walnut. 创新地被植物在地中海造林中的应用:杂交核桃的空中和地下效应。
Pub Date : 2016-11-28 DOI: 10.12899/ASR-1195
Angelo Vitone, J. Coello, M. Piqué, P. Rovira
Forest restoration in the Mediterranean area is particularly limited by water scarcity in summer and by weed competition, especially during the first years after establishment. The negative impact of these factors can be mitigated through environmentally friendly and cost-effective techniques which favour root development. This study describes the results of innovative weeding techniques in a reforestation carried out in a former agricultural field in Solsona, NE Spain, under Continental Mediterranean Sub-humid climate conditions. The tested weeding techniques included both novel groundcovers (based on prototypes built on a new biodegradable biopolymer, jute treated with resin and recycled rubber) and reference techniques, i.e. herbicide application and polyethylene and commercial biofilm groundcovers. We studied the response of hybrid walnut ( Juglans x intermedia ) to the application of these techniques during the first vegetative period in terms of survival, aerial growth and aboveground and belowground biomass allocation. The innovative groundcovers resulted generally in similar outcomes as the reference techniques with regard to tree survival and growth, and to better results in the case of belowground and, to a lesser extent, total tree biomass. Although preliminary, our results suggest that the tested novel groundcovers, notably the model based on treated jute, represent a promising alternative to plastic mulching and herbicide application in afforestation of agricultural lands in Mediterranean continental conditions. Besides these promising productive results, the novel groundcovers bring together relevant technical and environmental benefits, related to their use (not requiring removal or being reusable) and composition, based on biodegradable or recycled materials.
地中海地区的森林恢复特别受到夏季缺水和杂草竞争的限制,特别是在建立后的头几年。这些因素的负面影响可以通过有利于根系发展的环境友好和成本效益高的技术加以减轻。本研究描述了在地中海大陆亚湿润气候条件下,在西班牙东北部索尔索纳的一个前农业领域进行的再造林中采用创新除草技术的结果。测试的除草技术包括新型地被(基于新型可生物降解生物聚合物的原型,用树脂和再生橡胶处理的黄麻)和参考技术,即除草剂应用和聚乙烯和商业生物膜地被。研究了杂交核桃(Juglans x intermedia)在第一营养期对这些技术的响应,包括存活、地上生长和地上地下生物量分配。创新地被覆盖在树木生存和生长方面的结果与参考技术大致相似,在地下的情况下取得了更好的结果,在较小程度上取得了树木总生物量的结果。虽然是初步的,但我们的结果表明,测试的新型地被物,特别是基于处理过的黄麻的模型,在地中海大陆条件下的农业用地造林中代表了塑料覆盖和除草剂应用的有希望的替代方案。除了这些有希望的生产成果外,新型地被植物还带来了相关的技术和环境效益,涉及到它们的使用(不需要移除或可重复使用)和基于可生物降解或可回收材料的成分。
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引用次数: 3
Factors affecting branch wound occlusion and associated decay following pruning – a case study with wild cherry (Prunus avium L.) 影响修剪后树枝伤口闭塞和相关腐烂的因素——以野生樱桃为例
Pub Date : 2016-11-28 DOI: 10.12899/ASR-1193
Jonathan P. Sheppard, Matthias Urmes, Christopher Morhart, H. Spiecker
Pruning wild cherry ( Prunus avium L.) is a common silvicultural practice carried out to produce valuable timber at a veneer wood quality. Sub-optimal pruning treatments can permit un-occluded pruning wounds to develop devaluing decay. The aim of this study is to determine relevant branch, tree and pruning characteristics affecting the occlusion process of pruning wounds. Important factors influencing occlusion time for an optimised pruning treatment for valuable timber production utilising wild cherry are derived. 85 artificially pruned branches originating from ten wild cherry trees were retrospectively analysed. Branch stub length, branch diameter and radial stem increment during occlusion were found to be significant predictors for occlusion time. From the results it could be concluded that for the long term success of artificial pruning of wild cherry it is crucial to ( i ) keep branch stubs short (while avoiding damage to the branch collar), ( ii ) to enable the tree to maintain significant radial growth after pruning, ( iii ) to avoid large pruning wounds (>2.5 cm) by removing steeply angled and fast growing branches at an early stage.
修剪野生樱桃(Prunus avium L.)是一种常见的造林实践,以生产有价值的木材在单板木材质量。次优修剪处理可以允许未闭塞的修剪伤口发展贬值的腐烂。本研究的目的是确定影响剪枝伤口闭塞过程的相关枝、树和剪枝特征。影响封闭时间的重要因素优化修剪处理利用野樱桃有价值的木材生产。对10株野生樱桃树的85根人工修剪枝进行了回顾性分析。支短长度、支径和桡骨干增加是预测闭塞时间的重要指标。结果表明,要使野生樱桃人工修剪取得长期成功,关键是:(1)保持树枝短(同时避免破坏枝颈);(2)使修剪后的树木保持显著的径向生长;(3)通过早期去除陡峭角度和快速生长的树枝,避免大的修剪伤(约2.5 cm)。
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引用次数: 8
Volume function for the tree farming English oak plantations of the Valdarno (Tuscany, Italy) 瓦尔达诺(意大利托斯卡纳)英国橡树种植园的体积函数
Pub Date : 2016-07-19 DOI: 10.12899/ASR-1079
M. Marchi, S. Ravagni, F. Pelleri
In the past centuries a notable reduction of lowland forest s in Italy was detected as a result of the spreading of intensive agriculture and deforestation activities . According to the national forest inventory (IN F C 2005 ) the English oak ( Quercus robur L.) is mainly a scattered species and is distributed across 146,000 hectares of mixed forests. However th is species has often been used in many national programs to recreate new woodland s in the lowland s as well as tree farming plantations. In the '80s, d uring the restoration program of the Santa Barbara mining area in the Municipality of Cavriglia ( Valdarno, Tuscany), about 172 hectares of tree farming plantation s were created with English oak . Due to the lack of a specific volume equation for Italian plantations a sampling campaign was carried out. The volume of 299 sample tree s was measured using the Heyer formula and a v olume equation was studied as a polynomial function of DBH and total height of trees . The final equation demonstrated to be quite robust with a RMSE of 0.0176 m 3 corresponding to a relative RMSE of 10%.
在过去的几个世纪里,由于集约化农业和森林砍伐活动的蔓延,意大利的低地森林明显减少。根据国家森林资源清查(IN F C 2005),英国橡树(Quercus robur L.)主要是一个分散的物种,分布在14.6万公顷的混交林中。然而,这个物种经常被用于许多国家计划中,在低地重建新的林地,以及植树造林。在80年代,在Cavriglia市(瓦尔达诺,托斯卡纳)的圣巴巴拉矿区的恢复计划中,大约172公顷的树木种植种植园用英国橡木创建。由于意大利种植园缺乏具体的体积方程,因此进行了抽样活动。采用Heyer公式测量了299棵样本树的体积,并研究了以胸径和树高为多项式函数的v体积方程。最后的方程被证明是相当稳健的,RMSE为0.0176 m3,对应于10%的相对RMSE。
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引用次数: 4
Long-term development of experimental mixtures of Scots pine (Pinus sylvestris L.) and silver birch (Betula pendula Roth.) in northern Britain 英国北部苏格兰松(Pinus sylvestris L.)与白桦(Betula pendula Roth.)混合试验的长期开发
Pub Date : 2016-07-19 DOI: 10.12899/ASR-1119
B. Mason, T. Connolly
The Caledonian pinewoods of northern Scotland are a priority conservation habitat in Europe which are dominated by Scots pine ( Pinus sylvestris) , but varying proportions of a number of broadleaved species such as silver birch ( Betula pendula) can occur in these forests. Better understanding of the dynamics of mixed Scots pine-birch stands would be helpful in informing current initiatives to restore and increase the area of the pinewood ecosystem. Some evidence is provided by two experiments established in the 1960s which compared plots of pure Scots pine and pure birch with two treatments where the two species were mixed in 3:1 and 1:1 ratios. Some fifty years later, Scots pine was the more vigorous of the two species in these experiments, being both taller and significantly larger in diameter. The highest basal area was generally found in the pure Scots pine plots and the values in the mixed plots tended to be intermediate between those of the two component species. Examination of the growth in the mixed plots showed a slight, but non-significant, tendency towards overyielding. This appeared to be due to Scots pine growth being better than predicted, while that of birch was slightly less than predicted. These results suggest that in these mixtures, which are composed of two light demanding species, the main mechanism driving long-term performance is competition for light and there is little evidence of any complementary effect. These results suggest that any strategy seeking to increase the long-term representation of broadleaves such as birch in the Caledonian pinewoods will need to create discrete blocks that are large enough to withstand the competitive pressures exerted by the pine.
苏格兰北部的喀里多尼亚松林是欧洲的优先保护栖息地,以苏格兰松(Pinus sylvestris)为主,但在这些森林中可以出现不同比例的阔叶物种,如白桦(Betula pendula)。更好地了解苏格兰松桦林混合林的动态将有助于为当前恢复和增加松木生态系统面积的举措提供信息。20世纪60年代建立的两个实验提供了一些证据,该实验比较了纯苏格兰松和纯桦树的两种处理方式,两种树种以3:1和1:1的比例混合。大约五十年后,在这些实验中,苏格兰松是两个物种中更有活力的,既更高,直径也大得多。纯样地的基底面积最高,混合样地的基底面积介于两种成分种之间。对混交地的生长检查显示有轻微但不显著的超产趋势。这似乎是由于苏格兰松的生长比预测的要好,而桦树的生长略低于预测。这些结果表明,在这些由两种光需求物种组成的混合物中,驱动长期表现的主要机制是对光的竞争,几乎没有证据表明存在任何互补效应。这些结果表明,任何寻求在加里东松林中增加阔叶(如桦树)长期代表性的策略,都需要创建足够大的离散块,以承受松树施加的竞争压力。
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引用次数: 5
Forest-food nexus: a topical opportunity for human well-being and silviculture 森林-粮食关系:人类福祉和造林的热门机会
Pub Date : 2016-07-19 DOI: 10.12899/ASR-1181
P. Corona, A. Cutini, U. Chiavetta, E. Paoletti
As population will reach over 9 billion by 2050, interest in the forest-food nexus is rising. Forests play an important role in food production and nutrition. Forests can provide nutritionally-balanced diets, woodfuel for cooking and a broad set of ecosystem services. A large body of evidence recommends multi-functional and integrated landscape approaches to reimagine forestry and agriculture systems. Here, after a commented discussion of the literature produced in the last decade about the role for forests with respect to the food security global emergency, we summarize the state of the art in Italy as a representative country-case-study. The aim is to increase awareness about the potential of silviculture in Italy for combining ecological resilience with economic resilience, and reducing the pressure over tropical and sub-tropical forests by means of a sustainable intensification of forest management at national level. Although a quantification of the Italian non-wood forest products is difficult, the potential of this sector for the Italian bioeconomy is relatively high. Italy is among the four top European exporters of cork stoppers, is one of the three top countries for chestnut seed processing, and is among the leading exporters of wild mushroom, while it is the only European country among the top five global importers of tannins. In order to develop this sector for the food industry, more research is needed on non-wood forest products, the scale of production, emerging markets, marketing and production innovation. On the other hand, chain-supply fragmentation, landowner inertia, and lack of governance and cooperation may hamper an effective exploitation of non-wood products. A renewed joint impulse for exploitation of wood and non-wood products may come from a sustainable intensification of forest management. The strategies to guarantee an effective supply of non-wood products require appropriate business skills and the presence of a structured business services. A transparent market is also essential. Therefore, the introduction of standards (like those by forest certification schemes) is very important. They can add value to products and emphasize the importance and complexity of the forest sector. However, the implementation of sustainable forest management for an effective supply of non-wood products is affected by the availability of appropriate planning tools, and the public officers need a new mindset to stimulate and support business capacity of forest owners.
到2050年,人口将超过90亿,人们对森林与粮食关系的兴趣正在上升。森林在粮食生产和营养方面发挥着重要作用。森林可以提供营养均衡的饮食、用于烹饪的木材燃料和广泛的生态系统服务。大量证据建议采用多功能综合景观方法来重新构想林业和农业系统。在这里,在对过去十年中关于森林在粮食安全全球紧急情况方面的作用的文献进行评论讨论之后,我们总结了意大利的最新情况,作为具有代表性的国家案例研究。其目的是提高对意大利森林栽培潜力的认识,将生态恢复力与经济恢复力结合起来,并通过在国家一级可持续加强森林管理来减少热带和亚热带森林的压力。虽然意大利非木材林产品难以量化,但这一部门对意大利生物经济的潜力相对较高。意大利是欧洲四大软木塞出口国之一,是栗子加工的三大国家之一,是野生蘑菇的主要出口国之一,同时它是全球五大单宁进口商中唯一的欧洲国家。为了发展食品工业的这一部门,需要对非木材林产品、生产规模、新兴市场、营销和生产创新进行更多的研究。另一方面,供应链的碎片化、土地所有者的惰性以及缺乏治理和合作可能会阻碍对非木材产品的有效开发。可持续地加强森林管理可能会重新推动木材和非木材产品的开发。保证有效供应非木材产品的战略需要适当的商业技能和有组织的商业服务。透明的市场也是必不可少的。因此,引入标准(如森林认证计划的标准)非常重要。它们可以增加产品的价值,并强调森林部门的重要性和复杂性。但是,为有效供应非木材产品而实施可持续森林管理受到是否有适当规划工具的影响,公职人员需要一种新的思维方式来刺激和支持森林所有者的商业能力。
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引用次数: 11
Indicators of sustainable forest management: application and assessment 可持续森林管理指标:应用和评价
Pub Date : 2016-07-19 DOI: 10.12899/ASR-1214
E. D’Andrea, F. Ferretti, L. Zapponi, D. Badano, Rosario Balestrieri, M. Basile, C. Becagli, Giada Bertini, Pierangelo Bertollotto, D. Birtele, L. Calienno, M. Cammarano, P. Cantiani, M. Cater, U. Chiavetta, L. Cistrone, V. Coletta, M. Conforti, Serena Corezzola, Andrea Costa, M. Groot, U. D. Salvatore, K. Eler, G. Fabbio, M. Ferlan, Andreja Ferreira, Alessandro Giovannozzi Sermanno, M. Jurc, M. Kobal, A. Kobler, M. Kovac, L. Kutnar, A. Monaco, F. Lombardi, E. Magnani, A. Marinšek, F. Mason, G. Matteucci, G. Meterc, M. Micali, G. Pellicone, R. Picchio, Špela Planinšek, M. Posillico, N. Rezaei, A. Romano, D. Sansone, F. Sicuriello, P. Simončič, M. Skudnik, R. Spina, D. Tonti, R. Venanzi
Implementing forest management options for the Life project ManFor C.BD. Description of the test areas .......................................................................................................................... 40 Di Salvatore U., Becagli C., Bertini G., Cantiani P., Chiavetta U., Fabbio G., Ferretti F., Kobal M. , Kobler A., Kovač M. , Kutnar L., Sansone D., Skudnik M., Simončič P.
执行生命项目ManFor C.BD的森林管理选项。金字塔Description of the一直areas ..........................................................................................................................40 Di这份证词U。,Becagli C。,Bertini G。,Cantiani P。,Chiavetta U。,Fabbio G。,Ferretti F。,Kobal M。,Kobler A。,KovačM。,Kutnar L。,Sansone D。,Skudnik M。,西蒙čičP。
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引用次数: 4
期刊
Annals of Silvicultural Research
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