枫桥古镇历史街区保护与更新探析

枫桥古镇历史悠久,文化内涵丰富,具有典型的江南古镇特色.历史街区是枫桥古镇文化和历史传承的缩影,但目前呈现出传统风貌消退、历史建筑物老化、街区功能衰退、交通组织混乱、基础设施落后和人口老龄化等一系列问题.在明确历史街区保护与更新的辩证关系和原则的基础上,借鉴历史街区成功保护案例揭示的经验,深入探讨历史街区有机更新的目标、内容和实施策略,以实现历史街区经济复兴、社会复兴和人文复兴.     

贵州省水资源安全问题及战略性对策研究

通过多年来水资源状况数据分析,发现贵州省主要河流和湖(库)水环境功能较差,主要城市地下水受到一定污染,水、旱灾害交织频发、灾害损失较大,水利基础建设滞后,水资源安全问题严峻。体制性和机制性障碍突出,水资源分配和管理效率低下;污水排放量加大,治污能力不足;强烈溶岩发育,生态脆弱性和水利设施建设难度大是导致贵州省水资源安全问题的主要原因。因此,通过建立有效的水污染防治体系,加快节水型社会建设,实施"三三结合"的生态建设战略和开展水环境保护补偿机制探索,是缓解贵州省水资源安全问题主要途径。     

In vitro inhibition of ETEC K88 adhesion by pea hulls and of LT enterotoxin binding by faba bean hulls

Enterotoxigenic Escherichia coli (ETEC) expressing K88 (F4) adhesins are associated with post‐weaning diarrhoea in piglets. Different grain fractions from pea (Pisum sativum) and faba bean (Vicia faba) were tested in vitro for their capacity to counteract aetiological factors, which contribute to the development of diarrhoea. In detail, adhesion of E. coli O149:K91:K88ac (ETEC K88ac) to grain legume products, intended to impair the colonization of the host, was studied as well as interference with receptor binding of the pathogen’s heat‐labile enterotoxin LT, intended to reduce toxin‐inflicted gut cell damage. When comparing different pea and faba bean products tested for their binding capacity of ETEC K88ac, especially pea hulls, but also whole pea meal, starch‐enriched and protein‐enriched pea meal, and digestion‐resistant pea hull and meal fractions showed a higher binding of ETEC K88ac than faba bean products. In contrast to the ETEC K88ac adhesion results, bean hulls proved more effective than pea hulls in preventing GM1 receptor binding of LT. Previous small intestinal segment perfusion experiments we performed with ETEC K88ac‐challenged piglets indicated that both pea and bean hulls have the potential for successful application in diarrhoea prophylaxis and treatment, which is in agreement with and refined by our detection of their different modes of functioning.     

Value-added strategies and forward integration in the Swedish sawmill industry: positioning and profitability in the high-volume segment

Abstract

The changing market conditions for the Swedish sawmill industry place a focus on a better understanding of the pros and cons of value-added and forward integration strategies. The purpose of this article is to describe and explain recent value-added strategies in the Swedish sawmill industry. The study includes strategies from 13 of the 15 largest sawmill companies for the period between 2002 and 2005, describing a differentiation between value added in primary sawmill production and forward integration into secondary production. It also aims to relate some basic conditions, such as company size, company growth and corporate strategy, to value added and forward integration to profitability. The results show strong positive and significant correlations between forward integration, value added in primary production (somewhat weaker) and unit revenue, and profitability measured as return on investment. There were no strong or significant correlations between size and profitability, playing down the importance of economies of scale (among these already large companies). An interesting result is the much higher profitability of the buying sawmill companies compared with the forest corporations, stressing the importance of both a long-term strategy when investing in value-added activities and ultimately the priorities of ownership.     

山东省高尔夫产业发展现状与对策研究

近年来,山东省高尔夫产业的发展已取得了突出的成绩,但通过对山东地区高尔夫产业发展的现状进行调查分析后发现,山东省高尔夫产业发展过程中存在产业结构单一,土地使用不规范,环境污染严重,公众认识欠缺等问题。因此,在此基础上提出了一些对策与建议,如优化产业结构,实施多种经营;完善管理制度,科学规划布局;加强环境保护,合理利用水资源;推进人才培养,全面提高认识等。以期为山东省高尔夫产业的健康、可持续发展提供理论支持。     

寿宁县犀溪文化生态旅游探析

分析了福建省寿宁县犀溪文化生态旅游资源,包括漂流、千年名村和特有民俗、古建筑、山水风光、红色旅游等,着重对森林旅游资源及存在的问题进行分析,并提出了寿宁县犀溪文化生态旅游发展策略.     

武汉休闲观光果园的选址原则与营销策略

随着经济的发展和社会的进步,人们的旅游消费层次由低级向高级发展,由少部分群体向大众普及,城市旅游休闲农业发展加速。笔者对休闲观光果园的涵义、功能和类型及武汉休闲旅游农业现状、休闲观光果园选址原则、品种配置和营销策略进行了初步探讨。     

武陵山区东北门户的林业扶贫攻坚策略

长阳土家族自治县是武陵山区门户,是长江流域重要生态屏障,是国家级贫困县。笔者通过调查研究,针对现状和问题,用现代林业理念进行定位思考,提出了定位生态民生改善、定位内生示范、定位9年同步全国,大打科技战、生态战、产业战,率先建成全国林药产业大县。     

Countermeasure Strategy for China’s Wood Enterprises to Meet Timber Legality Requirements

As the global forest issues and illegal logging have increasingly aroused the concerns of the international community,the US Lacey Act Amendment and the EU Timber Regulation poses requirements for the legality of timber.The paper described the background of timber legality issue,analyzed the specific requirements of the US and the EU for timber legality,and pointed out their negative impacts on China’s wood enterprises.Based on the analyses,the authors came up with the approaches that China’ s wood enterprises could adopt to meet legality requirements,and proposed the specific suggestions on how enterprises respond to the requirements for legality with an eye for the difficulties that they are confronting with.     

马尾松纸浆材育种研究进展及策略

介绍世界各国的松树材性改良的概况及研究进展,材性研究包括木材基本密度遗传变异、木材纤维形态遗传变异、木材化学组成遗传变异和木材材性性状之间相关性,并提出了马尾松纸浆材遗传改良的策略。