Results 61 to 70 of about 29,704 (171)

生态恢复与可持续发展

open access: yesShuitu Baochi Xuebao, 2004
简要介绍了生态恢复和恢复生态学的概念,阐述了生态恢复的效果,生态恢复的定位,生态恢复与可持续发展。国内称生态恢复为生态修复,而国际上则称为生态恢复。为了与国际接轨,文中采用生态恢复一词。
李凤 陈法扬
doaj   +2 more sources

Behavioral interventions to reduce demand for threatened freshwater turtles as pets

open access: yesConservation Biology, EarlyView.
Abstract Growing demand for freshwater turtles as pets has fueled illegal trade and accelerated wild population declines, underscoring the need for theory‐based demand‐reduction interventions. We conducted a three‐part randomized controlled trial with active turtle keepers (n = 1800) in China to test conservation‐ and legality‐framed messages by ...
Wuji Zheng   +9 more
wiley   +1 more source

陕西关中地区生态安全定量评价与动态分析

open access: yesShuitu Baochi Xuebao, 2005
利用生态足迹的理论与方法,对陕西关中渭河盆地,1986~2002年的生态足迹、生态承载力、生态盈余/亏损进行了测算。提出了生态压力指数的概念,建立了生态压力指数测算模型以及生态足迹、生态承载力、生态盈余及生态安全度变化预测模型,并对本地区万元GDP的生态足迹需求进行了测评。研究结果表明:①本地区生态承载力呈减少趋势;②生态足迹均呈现增加趋势;③1986~2002年生态压力指数从0.75增长为1.20,增长幅度为0.45,增长幅度较大;④关中盆地已严重超载,处于不安全状态 ...
任志远 黄青
doaj   +2 more sources

Modeling seed germination data to meet biodiversity conservation needs in the Mediterranean

open access: yesConservation Biology, EarlyView.
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

长兴水韭,中国水韭属一个四倍体新种

open access: yesGuangxi Zhiwu
水韭属是一类具有异形孢子的古老石松类植物,全属物种均被列入国家重点保护野生植物。该文报道了在浙江省长兴县新发现的一个四倍体水韭属居群。基于形态学、孢粉学和细胞学证据,将该物种命名为长兴水韭(Isoëtes changxingensis),并详细描述了其形态特征。长兴水韭与保东水韭(I. baodongii)在植株形态及孢子纹饰方面都较为相似,不同之处在于其染色体为44条,大孢子极面直径为317~411 μm(平均为360 μm)(vs.染色体22条,大孢子极面直径为390~510 μm,平均为450 ...
童 玲   +7 more
doaj   +1 more source

黄河流域经济带生态环境绩效评估及其提升路径

open access: yesShuitu Baochi Xuebao, 2023
黄河流域经济带是我国北方重要的经济走廊,科学评估黄河流域经济带生态环境绩效水平,提高黄河流域沿线9省生态环境质量是实现黄河流域经济带的高质量发展重要举措之一。运用生态环境质量评估、生态效率评估等研究方法,开展2012—2017年的生态环境质量、生态效率和绿色全要素生产率评估。结果表明:黄河流域经济带生态环境绩效水平总体呈现由较低水平不断提升的趋势;黄河沿线九省在生态环境质量和生态效率系统层中有明显差异,生态环境质量系统层中,上游地区的最优;生态效率系统层中,中下游地区的生态效率最优且稳定 ...
鲁仕宝, 尚毅梓, 王浩, 廉志端
doaj  

Comparative species distribution model framework for marine conservation and its application to loggerhead turtles in the Mediterranean

open access: yesConservation Biology, EarlyView.
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
wiley   +1 more source

广西苦苣苔科植物一新种——平果报春苣苔

open access: yesGuangxi Zhiwu
该文报道了广西苦苣苔科报春苣苔属(Primulina Hance)一新种——平果报春苣苔(Primulina pingguoensis H. S. Ma & B. Pan),该新种在形态学上与囊筒报春苣苔(P. carinata Y. G. Wei, F. Wen & H. Z. Lü)相似,但两者能明显区别,平果报春苣苔花冠裂片狭披针形至线型,长宽比大于2(vs.圆形至卵圆形,长宽比小于1.5),花冠内部具8~10条紫色条纹,与花冠同色,无明显导蜜线(vs.棕色条纹,与花冠不同色,具两条黄色导蜜线 ...
马 虎生   +3 more
doaj   +1 more source

Evaluating a structured expert elicitation approach for adaptive conservation management based on lessons from five years in practice

open access: yesConservation Biology, EarlyView.
Abstract Adaptive management of threatened species relies on having ex ante estimates of species’ responses to different interventions. Structured expert elicitation is often used to generate these estimates, but comparisons of these expert‐predicted outcomes with observed results are rare.
Helen J. Mayfield   +18 more
wiley   +1 more source

Structured decision‐making as a framework to incorporate social equity into conservation decisions

open access: yesConservation Biology, EarlyView.
Abstract Many conservation challenges require negotiating trade‐offs between the needs of different actors. Global frameworks such as the Kunming–Montreal Global Biodiversity Framework explicitly call for diverse participation and social equity in conservation decision‐making.
Emily Massingham   +2 more
wiley   +1 more source

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