日本湿地生态系统保护的经验与启示

通过在日本对湿地生态系统及其生物多样性的修复,再生及合理利用项目的参观和学习,本文认为我国可借鉴日本政府和社会各界高度重视并参与湿地生态系统的保护和环境教育的经验,转变观念,加大湿地保护的投入力度,加强湿地科学研究与环境教育,提高全民湿地保护意识.鼓励当地居民参与和支持湿地保护活动。     

基于鸟类生境修复与营造的湿地 生态设计策略

以天津七里海古潟湖湿地为研究场地,以生活在其 中的鸟类及其所需的生境条件为主要研究对象。由于研究中 数据有限,因此选择根据有限数据就可得出较为准确结果的 Lasso回归算法,分析环境因子与鸟类多样性之间的关系。结 果显示人类干扰程度、植物水平斑块丰富度、植物香浓-威纳 指数及面积是影响鸟类丰富度的关键环境因子。以此为依据, 结合目标鸟类所偏好的生境条件,针对现状斑块类型及斑块内 的小生境提出了相应的修复、营建、增加面积及丰富植物群落 等设计策略,以期能够以提高研究场地内鸟类丰富度为最终目 标,进而达到湿地生态系统修复的目的。     

Applying the resilience principles for sustainable ecotourism development: A case study of the Nakdong Estuary,South Korea

When studying sustainable ecotourism, the ecotourism system can be better understood as a complex association of various elements that affects the local society and wildlife habitats. The purpose of this study is to plan an ecotourism system for the wise ecotourism resource management of estuary wetlands by using a resilience principle-based systems thinking approach. This study suggests an integrated management plan that considers diversity, connectivity, learning, participation, and polycentric governance to solve universal and important issues, such as estuary dam removal, urbanization, and natural resource use in the estuary's social-ecological system. The ecotourism system plans suggested in this study include minimizing ecological conflict and load through an improved sense of responsibility among stakeholders and strengthened protective activities. The results of this study suggest appropriate roles for various stakeholders in the management of tourism resources that can be used to establish new guidelines for ecotourism destination planning.     

若尔盖湿地生态系统管理的关键问题

若尔盖湿地是中国最大的高原湿地,具有丰富的生物多样性和生态资源。由于多种原因,这片湿地正面临着空前的生态危机。对若尔盖湿地展开生态系统管理研究是改善若尔盖生态环境,实现可持续发展的前提。其中,关键问题包括：湿地生态系统现状分析;生态系统服务功能分析与价值化评估;建立可视化专家管理系统,实施可持续利用对策。     

旅游城市湿地生态建设探讨——以苏州太湖国家旅游度假区为例

湿地是旅游城市重要的景观资源和生态资本。文章在介绍湿地生态理论基础上,提出了旅游城市湿地保护与开发的政策建议。以苏州太湖国家旅游度假区湖滨湿地为例,在分析度假区生态环境特征基础上,指出湿地公园的建设目标,阐述湖滨湿地功能分区建设,并提出具体的生态保护措施,以期充分发挥湿地的生态、社会和经济效益。     

污水处理中除磷方法的利弊分析

介绍了污水除磷的几种主要方法,并对化学沉淀法除磷技术和生物除磷技术以及人工湿地除磷技术进行了详细论述,简要分析了各种方法的利弊:化学法除磷效率较高,但会产生大量化学污泥;生物法除磷操作简单,但除磷效率较低;人工湿地除磷技术廉价高效,但有待进一步发展完善。     

减河湿地风景区

德州减河湿地风景区是国家海委首次批准的海河流域生态湿地示范项目,由减河湿地治理和景观改造两部分组成。工程竣工后,将进一步完善德州城市形象,提升城市品位,推动全市区域经济文化高地建设向纵深开展。     

The effect of accounting question response formats on student performance

The purpose of the research is to examine the effect of different response formats on student performance on introductory accounting exam questions. The study analyzes 1104 accounting students’ responses to quantitative questions presented in two formats: multiple-choice and fill-in. Findings indicate that response format impacts student performance on most of the questions, in favor of the multiple-choice. A second goal is to discover how effectively wrong-answer options in multiple-choice questions capture students’ actual incorrect thinking. Analyses of the fill-in questions showed students wrote in a wide array of incorrect answers, many of which would not have been offered as multiple-choice distracters. Answers filled in were often based on misguided logic that test question authors might never have anticipated. Students’ incorrect reasoning on quantitative fill-in questions can inform instructors on how to proactively address student misconceptions and write more effective multiple-choice items.     

洮儿河、归流河两河流域湿地生态环境动态监测与研究

对洮儿河、归流河流域湿地保护现状进行了全面的描述和分析,在此基础上指出了洮儿河、归流河湿地在环境与资源状况,管理与资源合理利用等方面存在的问题,针对这些问题,探索和讨论了洮儿河、归流河湿地生态环境监测指标。     

基于光谱特征的监督分类方法在黄河口湿地的应用比较

使用基于光谱特征的六种常用监督分类方法,对同景黄河口湿地高光谱CHRIS影像进行分类,后对分类结果进行对比,进而分析并总结六种方法分类精度之间的差异和各自的特点。