利用湿地废水资源化的效益分析——以八湖镇荷塘湿地为例

根据我国对湿地废水资源化利用的现状,阐述利用人工湿地净化污水的理论基础。以临沂市八湖镇荷塘湿地为例,对荷塘湿地净化蔬菜加工废水进行经济效益、社会效益和环境效益分析。结果表明,应用荷塘湿地净化蔬菜加工废水技术可有效缓解水资源危机,维持生态平衡,进而实现经济、社会和生态环境的协调及可持续发展,其产生的效益较大,可为我国类似地区开展蔬菜加工废水资源化利用提供借鉴。     

江苏沿海互花米草盐沼湿地的经济、生态功能

互花米草是从美国引进我国的新物种,自1982年在江苏沿海栽种以来,在江苏沿海已形成了约125km^2的互花米草盐沼湿地。本文分析了互花米草盐沼湿地的生态、经济价值,讨论了互花米草盐沼湿地对环境的影响,指出必须对互花米草代盐沼作进一步深入研究。     

生态水库研究及建设东风西沙生态水库探讨

本文通过对国内外生态水库研究现状的调查,阐述了生态水库的概念、内涵及标志,并就东风西沙生态型水库建设及生态调度进行了探讨,是对促进维持水库的基本功能并使其得以可持续发挥的有益尝试,对构建水资源合理利用与生态系统保护之间的和谐关系有着重要意义。     

黄河三角洲湿地生态评价与保护利用对策研究（上）

在分析黄河三角洲湿地资源概况的基础上,从多样性,代表性,稀有性,面积的适宜性,自然性,脆弱性等因素出发,对黄河三角洲湿地生态保护功能作出了评价,进而提出了黄河三角洲湿地保护,利用的指导思想,原则以及对策。     

银川市湿地现状与保护

湿地不仅是生物多样性的载体,具有重要的环境调节功能,在抵御洪涝、改变径流时空分布、涵养水源、保持水土、降解污染等方面具有其它系统不可替代的作用,其本身还具有很高的美学价值,尤其是城市中的湿地,对城市生态环境维系以及为人们提供游憩场所等方面更具有重要作用。但城市的不断拓展,造成了湿地面积缩小,使其失去了生态功能,制约着城市的健康发展。     

江西湿地旅游资源的开发

江西是我国湿地资源丰富的省份之一。湿地作为一种独特的自然景观,具有作为生态旅游开发的价值,并成为我国旅游资源开发中的一个热点。分析江西湿地旅游资源的特点和类型,对江西湿地旅游产品的开发提出思路和建议,以期为江西地方旅游经济的发展尽绵薄之力。     

Restoring Wetlands Through Wetlands Mitigation Banks

This paper offers the first economic analysis of wetlands mitigation banks. The banks are a new alternative for restoration of wetlands by developers before receiving regulatory approval for future development of wetlands in the same watershed. A stochastic optimal control model is developed which incorporates ecological uncertainty of wetlands restoration. The model helps in examining the decisions of how much to invest in a wetlands mitigation bank. The model is calibrated with data from California bioeconomic parameters. Numerical simulation of the model provides a sensitivity analysis of how model parameters of restoration costs, stochastic biological growth, interest rate, and the market value of credits affect the trajectory of investment and the optimal stopping state of wetlands quality when the investment ends. The analysis reveals that restoration of the whole site will occur when there is a reduction in restoration costs, an increase in biological uncertainty or an increase in the value of wetlands credits. Continued restoration is harder to justify with a higher interest rate.     

浙江省海洋湿地特征及其保护性开发研究

海洋湿地生态系统拥有着非常高的经济价值、社会价值和环境价值,其保护性开发利用研究对于沿海地区具有重要意义。文章通过对各类相关数据的研究和比较,分析了浙江省海洋湿地的现状特征和存在的问题,并根据现状提出了保护性开发对策。     

湿地经济价值的研究

湿地是一种有着较高生产力的生态系统，它可以为经济系统提供多种服务，具有重要的经济价值，湿地的经济价值来源于湿地内部生物，物理，化学组分之间的相互作用过程，其价值的大小取决于湿地规模大小，作用性质和该湿地所处的人类社会经济环境。近年来，有关湿地经济价值评估的理论与方法研究已引起了人们的广泛关注，本文系统分析了各类湿地经济价值，探讨了对湿地经济价值进行评估的理论依据。同时概括总结出了对各种湿地服务功能进行评估的方法。     

How recreation involvement,place attachment and conservation commitment affect environmentally responsible behavior

This study examines a behavioral model using latent variables of place attachment, recreation involvement, conservation commitment and environmentally responsible behavior among tourists visiting wetlands. In total, 928 usable questionnaires were collected. Confirmatory factor analysis and structural equation modeling were applied to the data by using LISREL 8.70 for Windows. Analytical results, which further elucidate the behavioral models of nature-based tourism, suggest that place attachment, recreation involvement and conservation commitment critically impact environmentally responsible behavior. In this behavioral model, conservation commitment simultaneously and partially mediates the relationships between place attachment and environmentally responsible behavior and between recreation involvement and environmentally responsible behavior. A series of management implications are drawn, including the need to use this information via a visitor interpretation strategy, greater use of partnerships with local communities and businesses to spread the importance of wetlands and of environmentally friendly behavior, and the need to work with other wetlands to share the type of visitor motivations best suited to encourage environmentally friendly behavior.