海洋物探技术在近岸海底礁石探测中的应用

论文介绍了海底礁石地质特征,同时通过重点分析几种常用的海底礁石探测技术方法特点,说明了海洋物探是目前海底礁石探测最值得推荐使用的技术方法,其效率高、成本低、适应性强、适用范围广的特点能够很好地满足海底礁石探测的各项要求,并在相关工程项目得到了有效应用。实践证明,海洋物探法可精确还原疏浚区海底礁石分布状态,为项目提供可靠的数据支持。     

海底隧道防渗新技术

以广东省某海底隧道项目为例,介绍了Intercrete产品在混凝土负向抗渗的应用。实践证明,Intercrete产品在新建及维修项目上可以有效抵抗极高的负向渗水,性能优异且安全可靠,可施工在湿混凝土结构表面,工期短,施工方法及工艺流程简单,涂料安全、无毒害,非常适合过海、公路、地铁等隧道的防渗和保护,具有广阔的应用前景。     

航道整治水下炸礁方法

介绍了航道整治工程中水下炸礁施工工艺及施工经验,为类似工程提供借鉴。     

Valuing Changes in the Quality of Coral Reef Ecosystems: A Stated Preference Study of SCUBA Diving in the Bonaire National Marine Park

We estimated the economic value of changes in the quality of a coral reef ecosystem to SCUBA divers in the Caribbean using a stated preference mail survey. Our sampling frame was all divers with U.S. home addresses who purchased a tag required for diving in the Bonaire National Marine Park in 2001. Divers were asked how they might have altered their trip choice had the quality of the coral reef system been different from what they experienced. From these responses we inferred the value of three different levels of quality defined by visibility, species diversity, and percent coral cover. We used random utility theory and mixed logit to analyze the choice questions. Our sample size was 211, and our survey response rate was 75%. For modest changes in quality we estimated per person annual losses at $45. For larger losses the value was $192. Presented at the 3rd World Congress of Environmental and Resource Economists in Kyoto, Japan, July 2006.     

我国珊瑚礁鱼类市场的演变

论文通过研究我国的珊瑚礁鱼类市场,分析现阶段珊瑚礁鱼类生产、流通、消费相关国家和地区在产业链上地位的变化,探究影响产业演变与调整的因素,进而判断我国珊瑚礁鱼类产业的发展趋势.并针对珊瑚礁鱼类产业可持续发展所面临的挑战,提出促进珊瑚礁鱼类产业健康发展的建议.     

青岛崂山湾海域人工鱼礁建设浅析

近几年来,由于海洋经济的迅速发展,近海生态环境受到严重破坏,水生生物资源日渐枯竭,生态环境质量逐年下降。本文从人工鱼礁建设对于改善生态环境、调整渔业产业结构的意义等方面着手,借鉴国内外建设人工鱼礁的经验,介绍了崂山湾建设人工鱼礁的条件及产生的效益,并对崂山湾实施人工鱼礁建设遇到的问题及解决对策进行了重点分析,为恢复近海渔业资源,改善渔业生态环境提供参考。     

京石路段高水压富水区隧道限排衬砌注浆圈合理参数研究

由于海底隧道要承受很大的外力,因此在隧道设计的时候不仅要对其排限等份额方面进行全面的整理和修补,还应当关注隧道建立过程中的经济实用等问题。     

How do environmental knowledge,environmental sensitivity,and place attachment affect environmentally responsible behavior? An integrated approach for sustainable island tourism

Previous studies have explored tourists’ environmentally responsible behavior (ERB) from the perspectives of individual commitment, attractiveness, and involvement. This study approaches from the standpoint of environmental knowledge (EK); it probes tourists’ behavior to facilitate sustainable tourism development, and constructs a sustainable island tourism development model by integrating EK, environmental sensitivity, place attachment, and ERB. Four hundred and seventy seven tourists visiting the Penghu Islands, Taiwan, were surveyed. Structural equation modeling was used to determine the relationships among the variables and the mediating effects. Results indicate that higher levels of tourists’ EK about the Penghu Islands are associated with stronger environmental sensitivity; environmental sensitivity which tourists have for island tourism is positively associated with place attachment. The extent of place attachment of Penghu as perceived by tourists is also positively associated with stronger ERB. When tourists are highly sensitive to the attraction, they are more likely to exhibit ERB. Environmental sensitivity and place attachment were found to exert significant effects in mediating the relationships between EK and ERB. This study pioneers the integration of all four constructs in a sustainable tourism behavior model for tourists to island tourism destinations. Suggestions for marketing and implementation of sustainable tourism, and their managerial implications are proposed.     

Welcome to the Wet Tropics: the importance of weather in reef tourism resilience1

As one of Australia's iconic tourism attractions and one of the seven natural wonders of the world, the Great Barrier Reef (GBR) is an important economic, social and natural resource for Queensland's Tropical North. However, the long-term prognosis for the health of the reef and by implication, the industries dependent on it, is not positive. So far much attention has focussed on the health and resilience of the reef ecosystem, as a foundation for a resilient tourism industry. In this study we explore how weather conditions have affected the reef experiences of 1000 tourists to the Cairns/Port Douglas region, suggesting that this may also be an important indicator of change on the reef. The results suggest that poor weather has a more pronounced effect on experiences than good weather and reinforce the likelihood that seasickness, cold and wet conditions, reduced water visibility, and difficult snorkelling/diving conditions will reduce overall levels of satisfaction. Poor weather was found to have a direct effect on satisfaction scores, the likelihood that reef and tour expectations were not realised, and lowered perceived value for money. These are important considerations for the reef centred tourism industry that is currently facing strong environment pressures from climate change.     

生物礁滩在碳酸盐岩地层的分布预测

生物礁作为油气的储集体,被称为储集油气资源的"天堂",在全球范围内,许多大型油气田都是生物礁油气田。然而,在油气勘探中,生物礁预测一直是个难点,过去预测的生物礁其钻井多数落空,在现有的生物礁滩中,90%以上都属于随机钻遇。利用地震剖面反射结构分析方法对生物礁体的识别具有解释速度快、可靠性高等特点,如果能够提高甚至解决礁滩相的预测问题,重视生物礁油气田勘探的研究,对我国油气的勘探将产生深远的意义,在一定程度上,对于缓解我国油气资源的供需矛盾,以及促进经济可持续发展具有重要意义。