‘Bear are only the Lightning Rod’: Ongoing Acrimony in Alberta’s Grizzly Bear Recovery     

Courtney Hughes  Scott E. Nielsen 《社会与自然资源》2019,32(1):34-52

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Towards a moral socio-environmental economy: A reconsideration of values     

《Geoforum》2015

In this intervention article I contribute to discussions of moral economy by arguing that scholars should reconsider the nature of value. Neoliberalism considers only exchange value. As a consequence neoliberal policies try to manage problems such as climate change with economic systems and instruments that are mis-calibrated to the material realities they are meant to represent. Value has spatial and temporal characteristics. Recognizing the spatial and temporal dynamics of value leads to new means of resource valuation, such as extending the time-frame of instruments and changing the nature of privatization. In conclusion, I argue for the need for new theories of use value.  相似文献   

Emerging Asias: Transnational Forces,Developmental States,and “Asian Values”     

Jim Glassman 《The Professional geographer》2016,68(2):322-329

Discussions of East Asian developmental states and Asian values discourse have been deformed by national-territorial frameworks that limit scholars' ability to highlight transnational phenomena. Such limits can be overcome by adopting a “Pacificist” perspective, one that highlights the transnational collaborative efforts of Pacific ruling class members, from both Asia and the United States. Such a Pacificist approach has the virtue of highlighting phenomena of transnational class formation that help account for the emergence of both developmental states in East Asia and Asian values discourse, and it also suggested the importance of attending to other kinds of emerging actors in Asian development politics, such as labor and democracy movements.  相似文献   

Diagnosis of earth-fill dams by synthesised approach of sounding and surface wave method     

Shin-ichi Nishimura  Toshifumi Shibata  Takayuki Shuku 《Georisk: Assessment and Management of Risk for Engineered Systems and Geohazards》2016,10(4):312-319

The spatial distribution of the strength inside the earth-fill is identified by the sounding tests. In this research, the Swedish weight sounding (SWS) is employed, and the spatial high-density test is performed to identify the spatial correlation structure. Furthermore, the synthesised approach of the SWS and surface wave method, which is one of the geophysical method, is proposed to compensate the shortage of each approach. Consequently, the correlation structure of an earth-fill could be identified accurately, and the high resolution of the spatial distribution could be visualised based on the survey results.  相似文献   

岩石铷-锶和钐-钕同位素标准物质的研制     

唐索寒  李津  潘辰旭  刘辉  闫斌 《岩矿测试》2021,(2):285-295

通常样品的⁸⁷Sr/⁸⁶Sr和¹⁴³Nd/¹⁴⁴Nd同位素比值分析采用SRM9⁸⁷、JNdi-1作为标准物质,它们分别是纯的碳酸盐和氧化物,适用于监控质谱测试过程。中国现有的钐-钕地质和铷-锶年龄标准物质,分别为玄武岩和钾长石,它们与很多地质样品的基质存在差别。仅有这两种基质的标准物质不能有效地监控不同地质样品Rb-Sr、Sm-Nd同位素分析过程,因此研制不同岩性的Rb-Sr、Sm-Nd同位素标准物质具有重要现实意义。本文采集中国典型地区的橄榄岩、榴辉岩和花岗岩作为候选物,严格按照《一级标准物质技术规范》(JJF 1006-1994)和《标准物质定值的通用原则及统计学原理》(JJF 1343-2012)等相关标准物质国家计量技术规范和国家标准,研制了橄榄岩、榴辉岩和花岗岩铷-锶、钐-钕同位素标准物质(编号为GBW04139、GBW04140、GBW04141),其中橄榄岩标准物质适用于高Mg、Fe,低Rb、Nd含量样品的分析,榴辉岩和花岗岩标准物质适用于含有难溶副矿物的岩石样品的分析。每个标准物质具有6个特性量值,Rb、Sr、Sm和Nd含量分布分别为0.16~64μg/g、12~560μg/g、0.1~3.2μg/g和0.3~15.3μg/g,⁸⁷Sr/⁸⁶Sr比值分布为0.70446~0.71309,¹⁴³Nd/¹⁴⁴Nd比值分布为0.51115~0.51267,同位素比值精度达到或优于同类标准物质。这些特性量值更接近实际样品,使用时将更加有效和方便。该系列标准物质可用于校准仪器和评价方法,并能有效监控实验室此类样品的铷-锶、钐-钕同位素分析过程。  相似文献   

石煤钒矿成分分析标准物质的研制     

田宗平  彭君  王干珍  易晓明  曹健  秦毅 《岩矿测试》2021,(1):111-120

石煤钒矿资源的开发和合理利用需要对其成分进行准确的分析测试和质量控制。目前,国内外尚未有石煤钒矿成分分析的标准物质,现有钒成分分析标准物质无论是其五氧化二钒含量,还是定值成分都无法满足我国对石煤钒矿勘查、开发和研究需要。本文对采自湖北省崇阳县小源冲钒矿、湖南省芷江县牛牯坪钒矿、湖南省古丈县岩头寨钒矿和湖南省凤凰县黑冲钒矿等4个大型石煤钒矿区样品开展了标准物质研制工作,研制了4个石煤钒矿成分分析标准物质(GBW07875、GBW07876、GBW07877、GBW07878)。将矿层样品、顶底板岩石和人工剥离高品位样品,经过颚式初碎、对辊中碎、粗粒过筛混匀、配矿混匀、盘式细磨、细粒过筛、灭活混匀等加工处理,经初检合格后,装瓶和编号。随机抽取的4×35瓶样品进行均匀性检验,F_实测值均小于F_0.05(34,70)=1.60,且相对标准偏差(RSD)在0.31%~7.48%之间,表明样品的均匀性好。对随机抽取样品进行长期稳定性检验和短期稳定性检验,结果没有发现统计学意义的明显差异,表明样品的稳定性良好。通过9家实验室参加协作定值研究,定值成分包括V₂O₅、C和SiO₂等共16种成分,其中4个石煤钒矿成分分析标准物质中的V₂O₅的质量分数分别为0.63%、0.86%、1.55%、3.99%,涵盖边界品位0.50%、工业品位0.70%、富矿品位≥1%,碳含量分别为2.40%、3.46%、5.60%、7.27%。本批次4个标准物质的研制成功,可为石煤钒矿的科学利用和研究提供参考和借鉴。  相似文献   

Cross-site analysis of perceived ecosystem service benefits in multifunctional landscapes     

《Global Environmental Change》2019

Rural development policies in many Organization for Economic Co-operation and Development (OECD) member countries promote sustainable landscape management with the intention of providing multiple ecosystem services (ES). Yet, it remains unclear which ES benefits are perceived in different landscapes and by different people. We present an assessment of ES benefits perceived and mapped by residents (n = 2,301) across 13 multifunctional (deep rural to peri-urban) landscapes in Europe. We identify the most intensively perceived ES benefits, their spatial patterns, and the respondent and landscape characteristics that determine ES benefit perception. We find outdoor recreation, aesthetic values and social interactions are the key ES benefits at local scales. Settlement areas are ES benefit hotspots but many benefits are also related to forests, waters and mosaic landscapes. We find some ES benefits (e.g. culture and heritage values) are spatially clustered, while many others (e.g. aesthetic values) are dispersed. ES benefit perception is linked to people’s relationship with and accessibility to a landscape. Our study discusses how a local perspective can contribute to the development of contextualized and socially acceptable policies for sustainable ES management. We also address conceptual confusion in ES framework and present argumentation regarding the links from services to benefits, and from benefits to different types of values.  相似文献   

滇西澜沧变质带中白云母的研究及其地质意义   总被引：7，自引：0，他引：7       下载免费PDF全文

赵靖 《岩石矿物学杂志》1993,(3)

本文以滇西澜沧变质带中最为广泛分布的造岩矿物——白云母为对象,详细研究和分析了其成分、多型类型及b_0值等,探讨了白云母的发育规律。研究结果表明,本带中绝大多数白云母为多硅白云母,且为3T+2M_1型,与蓝闪石共生的则以3T多硅白云母为主。此外,澜沧变质带经历了蓝闪石片岩亚相的高压变质作用,与古特提斯构造演化密切相关,并可与世界著名的高压带对比。  相似文献   

滇西澜沧变质带中白云母的研究及其地质意义          下载免费PDF全文

赵靖 《岩石矿物学杂志》1993,12(3):251-260

本文以滇西澜沧变质带中最为广泛分布的造岩矿物—白云母为对象，详细研究和 分析了其成分、多型类型及ba值等，探讨了白云母的发育规律。研究结果表明，本带中绝大多数白云母为多硅白云母，且为3T+2M,型，与蓝闪石共生的则以3T多硅白云母为主。此外，斓沧变质 带经历了蓝闪石片岩亚相的高压变质作用，与古特提斯构造演化密切相突，并可与世界著名的高 压带对比。  相似文献   

Modelling of earthquake rupturing as a stochastic process and estimation of its distribution function from earthquake observations     

Z.-M. Yin  G. Ranalli 《Geophysical Journal International》1995,123(3):838-848

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