Using post‐visit action resources to support family conservation learning following a wildlife tourism experience

Wildlife tourism experiences are often promoted for their ability to enhance visitors’ conservation knowledge, attitudes and behaviour; yet, studies exploring the long‐term influence of such experiences are rare. This research explores the impact of a wildlife tourism experience and post‐visit support on families’ adoption of conservation practices following their visit. In Stage 1, barriers and benefits associated with six conservation practices were identified and incorporated into the design of post‐visit action resources. Two hundred Australian families visiting Mon Repos turtle rookery in Queensland, Australia, were assigned to either a treatment group (given post‐visit support) or a control group (no support). Three months after their visit, families in the treatment group were significantly more likely to report changes in their conservation knowledge; their attitudes towards protecting wildlife and the natural environment; and the frequency with which they picked up litter. Treatment families also adopted significantly more conservation practices than the control group. Implications for wildlife interpretive practice and visitor management at wildlife tourism sites are discussed.     

浅谈建筑节能的意义及应用技术

文章阐述了建筑节能的意义,并对外墙外保温墙体工程建筑节能的应用技术、施工要点、监理要点进行了论述。     

非饱和砂土强度特性的室内试验研究

以广东珠三角地区某场地砂土为研究对象,通过同时控制吸力、净室压力的非饱和土三轴剪切试验和同时控制吸力和净竖向压力的非饱和直剪试验,分析探讨了非饱和砂土的应力—应变性状及强度规律,得到了各自的变形和强度参数,并将这些参数进行了比较和分析,得出随吸力和净围压的变化,其强度、变形和各强度参数之间的变化规律。     

休屯盆地典型茶园土壤有机质含量和pH的时空变异

选择休屯盆地低山典型茶园,采用5点采样法采集土壤样品,对其有机质、pH和速效N、P进行测定,就不同植茶年对土壤有机质、pH值的时空影响进行相关分析。结果显示,植茶龄36、53年的茶园土壤有机质较对照组（23.64±4.229g.kg-1）高,植茶龄25年的有机质含量（13.53±8.640g.kg-1）低;速效N、速效...     

土壤固化剂稳定砂土的力学性能试验研究

针对郑州至民权某段高速公路沿线石料缺乏这一现状,采用水泥与土壤固化剂对当地的典型砂土进行加固,通过一系列室内试验,对土壤固化剂稳定砂土作为高速公路筑路材料的力学性能展开研究,并分析了结合料掺量及养护龄期对土壤固化剂稳定砂土力学性能的影响。研究发现,土壤固化剂稳定砂土作为高速公路的筑路材料具有较好的力学性能。当结合料达到一定掺量时,土壤固化剂稳定砂土满足高速公路筑路材料的力学性能要求。     

Shifting the focus to people: Global societal priorities and the contribution made by conservation science

During the ICCROM Forum on Conservation Science in 2013, one of the main themes discussed was the ability for conservation science to contribute to global societal priorities. Today's world is in many ways globalized. Human actions have an impact at local as well as global level. Information travels fast, more or less in real time. To set up a framework for international interactions and cooperation, the majority of the recognized nations have joined the United Nations and signed the Universal Declaration on Human Rights. Global societal priorities are various and wide-ranging. This paper deals primarily with those that are referred to under the UN Millennium Development Goals and the term Sustainable Development. The first aims to fight extreme poverty, raise education levels, achieve gender equality, combat diseases, etc. The second deals with the interconnecting systems of social, economic, and environmental sustainability. A core aspect in the discussion is that culture and cultural heritage is integrated in all human activities, yet is diverse because culture holds various values, meanings, and functions for different groups in society. Cultural heritage is a powerful tool to reach and interact with people. It can be used for good and for ill. For conservation science as a discipline to take its professional responsibility seriously, it should contribute to the multi-, inter-, and transdisciplinary environment of conservation, and enhance its benefits for society. Through advanced research it can provide historical perspectives and raise awareness of traditional methods, transforming it into ‘easily accessible’ knowledge. It can also contribute by providing facts and information that can open up different narratives based on the same cultural historical realia. Examples of how that can be done are given under the headings: social, economic, and environmental sustainability. Finally, addressing the global conservation community, the following three areas are recommended for future development: the need for process managers and facilitators; the need for active participation in the global sustainability challenges, and the need for inspirational role models and case studies.     

一种用于山区土壤重金属评估的集成RBF空间插值算法(英文)

提出了一种在山区能够准确、稳定地预测未采样点土壤重金属浓度的集成径向基函数神经网络空间插值方法(IRBFANNs).该方法集成径向基函数神经网络和神经网络集成技术的优点.为了研究所提IRBFANNs方法的性能,进行了3组不同采样密度条件下的实验.通过M n元素插值的均方根误差和分布估计图对IRBFANNs和其他6个插值方法进行了比较.实验结果表明:IRBFANNs方法在精确性和稳定性方面优于其他参评方法,且在采样密度稀疏条件下该方法能够提供细节较丰富的分布估计图.     

黏性土三轴试验组合方法

针对解决《土工试验方法标准》三轴试验中,黏性土抗剪强度指标出现的变异问题,提出一种黏性土试样组合方法,准确测定黏性土抗剪强度指标值在原有的一组相同物理性质(含水率,液塑限,级配)黏性土三轴试样的基础上,增加一组或两组相同物理性质试样,通过系统软件对试样进行完备组合,重新形成黏性土抗剪强度指标值样本基数,取其样本数的平均值为黏性土抗剪强度指标.通过试验验证了试样组合方法能有效避免三轴试验中出现的互不包容的莫尔圆,或黏聚力c出现负值试验结果,并在不增加试样数量的前提下,扩大了黏性土抗剪强度指标的样本基数,从而可准确测定抗剪强度指标值组合方法的提出为黏性土抗剪强度指标的测定提供一定的参考价值.     

岩土力学实验教学优质资源建设与共享研究

实验是“岩土力学”课程学习中非常重要的实践性教学环节,对于提高学生的动手能力和培养学生科学研究的兴趣,具有非常大的锻炼作用.以东北大学岩土力学实验教学改革实践为例,改革传统的教学方法和手段,提出合理优化现有的教学资源,鼓励学生进驻实验室大胆创新,采用开放式的实验教学模式,从整体的结构体系作出了改革与探索.     

Determination of Diffusion Coefficient and Analysis of Diffusion Factors of Cr(Ⅵ) Ion in Clay Soil

Some laboratory diffusion tests were conducted with diffusion device to determine the diffusion coefficient of Cr(Ⅵ) ion passing through Dalian red clay samples. The concentrations of Cr(Ⅵ) at different places of the samples were then measured spectrophotometrically after a standing time of 1 000 d. A one-dimensional solute transport equation was used to simulate the transport of Cr(Ⅵ) through clay samples. Back-calculation of diffusion coefficient of Cr(Ⅵ) was made with finite difference method. Parametric...