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Reform in the forest sector in Peru resulted in a new forestry law, developed with substantial input from international conservation and donor organizations. While it incorporates the principles of sustainable forest management, biodiversity conservation and livelihood improvement, inconsistencies remain between the regulatory mechanisms and actual practices and outcomes in the field, leading some to consider the legal framework a failure. This article suggests that problems in the sector persist because the legal and regulatory frameworks do not incorporate existing local institutions, norms and practices — all of which are rooted in complex historical social, political and economic relationships. Based on information from interviews, data on movement of timber and analysis of secondary information, the authors examine the local structure, actors and dynamics of the concession forestry system in the Peruvian Amazon. The article focuses on how financial, social and political relationships in the network of actors, and particularly the patronage system, have helped actors in the sector adapt to the new policy framework. It is proposed that any further reform in the forest sector must be based on a keen understanding and appreciation of the praxis of timber extraction in the region. 相似文献
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古建筑是一种重要的文物类型.长期以来对古建筑的研究多重视单体建筑的研究或区域内某一时代的建筑类型和建筑特点的研究,而缺乏区域内纵向的较为系统的研究. 相似文献
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成一农 《中国历史地理论丛》2012,27(1):84-93
以往关于中国古代城市选址的研究多注重宏观因素,本文认为虽然这些宏观要素对于城市选址起到了一定的决定因素,但城址最终是由人来选择的,而人对于各种因素、利弊必然有着不同的认识,其结果不是一种必然。地理因素或者宏观因素在很大程度上决定了在某一区域中可能会产生城市,但是否产生了城市以及城市的微观选址则是由人决定的。这些问题是以往研究所忽视的。本文认为城市选址是一种过程,是一种以人为主体的"人地关系"。 相似文献
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Analysis of plant microfossils (phytoliths, pollen, and starch grains) from archaeological and paleoecological sediments in the humid Neotropical forest can provide information on some formerly intractable problems in American paleoethnobotany and archaeology. Each technique has strengths that redress the other's shortcomings, and all three microfossils can be recovered from early sites, securely identified, and dated. Agricultural origins, Pleistocene/ Holocene environmental changes, and the evolution of slash-and-burn agriculture are three important issues that yield substantial results to phytolith, pollen, and starch grain study. Microfossils of a number of domesticates, including maize, manioc, squash, bottle gourd, arrowroot, and leren, have been identified in contexts dating from 9000 to 7000 radiocarbon years B.P. The scope and methodology of traditional paleoethnobotany should be expanded to routinely include microfossil study. 相似文献
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本文以史前陶器为例,拓展了陶器研究中的新视野:指出陶器并非只是生活用品或文化序列的标志物,它与自然环境、经济方式、社会组织、意识形态等方面均有着密切的关系。而要真正全面了解陶器所潜藏的各种古代文化信息,就必须首先寻找获取信息的新途径。就史前陶器而言,传统的地层学、类型学方法已不能满足考古学发展的新要求,而自然科学技术、考古统计学、民族考古学、实验考古学则是有效地获得材料的主要途径。从某种意义上说,考古方法体系的陈旧比考古理论的滞后更加不利于中国考古学的健康发展。 相似文献
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普洱茶因普洱而得名,普洱因普洱茶而扬名。普洱境内有距今3540万年前的茶树始祖,有2700余年的野生古茶树王,有1700多年的过渡型古茶树,有千年万亩栽培型古茶园,这一切,都在申遗者的手中熠熠生辉。 相似文献
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为保护古建筑,采用试验方法,研究了不同方法加固榫卯节点后木构架的抗震性能。基于故宫太和殿某开间梁柱节点的具体尺寸,制作了1:8比例的4梁4柱木结构空间框架模型,其中梁和柱考虑为燕尾榫形式连接。采用人工加载方式,进行了低周反复加载试验,研究了马口铁、CFRP布和钢构件加固榫卯节点后对木构架抗震性能的影响。基于试验结果,获得了加固前后构架的力-侧移滞回曲线和骨架曲线,分析了构架耗能能力、刚度退化规律及变形能力,对不同方法加固木构架的抗震效果进行了对比,对其工程应用提出了建议。 相似文献
