Results 1 to 10 of about 2,212 (110)
Identification of Shark Fin Using 12S rRNA Gene Marker(利用12S rRNA基因标记鉴定鱼翅真伪) [PDF]
To detect authenticity and species of 23 suspected shark fin samples. DNAs from either shark fin or shark fin derived soup were extracted, and then 12S rRNA gene of mitochondrial DNA that was special for animal species identification was amplified.
HUANG Yalin(黄娅琳)
doaj +1 more source
New records of vascular plants in Zhejiang Province(浙江维管植物分布新记录)
报道了浙江维管植物分布新记录10种,分别为:睫毛蕨科Pleurosoriopsidaceae的睫毛蕨Pleurosoriopsis makinoi (Maxim. ex Makino) Fomin;榆科 Ulmaceae 的山黄麻 Trema tomentosa (Roxb.) Hara;樟科 Lauraceae 的华南木姜子Litsea greenmaniana Allen 和黄枝润楠 Machilus versicolora S. K. Lee & F. N.
ZHANGFenyao(张芬耀) +4 more
doaj +1 more source
森林生态环境健康评价是森林保护与持续利用的基础,建立一套科学的森林生态环境 健康评价指标体系,可为制定科学的森林保护对策提供依据,对提高森林可持续经营水平和 环境管理水平具有重要的指导作用.本文依据一定的原则,从森林自然环境背景、森林生态 系统、林区社会经济3个方面,探讨并建立了一套操作方便,既能反映森林生态环境健康质 量,又能反映森林生态环境健康变化趋势的指标体系,并提出了森林生态环境健康评价的综合指数法及其等级划分.
张秋根, 王桃云, 钟全林
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Effects of restoration practices on biodiversity in temperate and boreal forests
Abstract Several restoration practices are used to mitigate and compensate for the negative effects of large‐scale forestry on biodiversity in temperate and boreal forests. A comprehensive synthesis of the benefits of these practices across taxa is missing. We conducted a systematic review and meta‐analysis on this topic.
Malin Tälle +2 more
wiley +1 more source
为了揭示喀斯特林下经济活动中人为踩踏对土壤入渗特性的影响规律,以喀斯特山地森林内部(未受干扰区域)、森林小径中央、森林小径边缘和裸地为试验样地,基于盘式入渗试验测定不同负压水头下(-0.5,-3,-6,-9 cm)的非饱和导水率(K9、K6、K3、K0.5)、饱和导水率KS、Gardner α常数和水流贡献率。通过原位染色示踪试验分别估算各样地的剖面染色面积比(DC)、均匀渗透深度(UniFr)和优先流百分比(PF-fr),分析了人为踩踏对喀斯特森林土壤优先流特征的影响。结果表明,森林小径中央的KS ...
李瑶, 刘冬冬, 车陆禄
doaj
Modeling seed germination data to meet biodiversity conservation needs in the Mediterranean
Workflow to assess the availability and quality of germination data and assign species' thermal risk in the Mediterranean. (a) Assessment of data availability, including the phylogenetic distribution of the number of records (i.e. available germination data); (b) data quality assessment; and (c) assignment of climate risk categories for species that ...
Diana María Cruz‐Tejada +2 more
wiley +1 more source
Abstract Modeling species distributions in dynamic pelagic environments remains challenging, particularly for wide‐ranging and highly mobile species when there is limited guidance on model performance. This limitation constrains the effective use of species distribution models (SDMs) in marine conservation, where robust and transferable predictions are
E. Pasanisi +32 more
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Using the capabilities approach to achieve people‐centered conservation
Abstract Top‐down interventions carried out by state and nonstate institutions to conserve biodiversity and improve the lives of forest‐proximate people (FPP) in the Global South tend to reflect economistic understandings of human well‐being. More progressive and people‐centered conservation projects are guided by normative visions of how the world ...
Arthur Rodrigues +4 more
wiley +1 more source
概述了目前常用的森林资源价值核算方法,较系统、全面地核算了黄土高原水土流失区森林资源环境价值(包括涵养水源价值、保育土壤价值、固碳制氧价值、景观游憩价值和净化环境污染价值)和实物价值(包括林地价值、林木和果品价值)的现值,并且分析了不同贴现率时森林资源价值的差异,指出基于可持续发展的需要,应取低贴现率进行森林资源价值核算。同时计算结果表明,森林资源环境价值是森林资源价值的主要部分,充分说明了森林环境价值的重要性,应该引起人们的高度重视。
杜丽娟 柳长顺 王冬梅
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Optimizing biodiversity offsetting for habitat succession and colonization dynamics
Abstract Biodiversity offsetting aims to compensate for ecological losses from development through conservation and restoration. However, its long‐term outcomes under repeated impact–offset cycles remain uncertain. Using a conceptual forest succession model, we evaluated how offset outcomes are affected by interactions among compensation scale ...
Konstans Wells +4 more
wiley +1 more source

