陕西黄河湿地的鹭林生境与保护     

吴逸群 《湿地科学与管理》2011,7(2):42-43

2010年7月19日～8月5日,在陕西黄河湿地自然保护区发现一处鹭类繁殖地。描述了鹭类繁殖地特征并提出了保护建议。  相似文献   

Continuous measurement of the depth of water table (inundation) in wetlands with fluctuating surfaces     

Nigel Roulet  Steven Hardill  Neil Comer 《水文研究》1991,5(4):399-403

Assessment of the water table in compressible and/or floating peatland mats requires a remote sensor that can measure simultaneously the elevation of the peat surface and the water level. A simple device, comprising two potentiometers, a float and ‘bog shoe’ was used to measure the water level and peat surface witin 0-3 mm. The water table (depth of water level relative to the peat surface) was then calculated.  相似文献   

湖北省湿地生态旅游资源开发的SWOT分析   总被引：1，自引：1，他引：0  

王留林  罗佳  吴宜进  张永利  刘汉生  王盈晓 《湿地科学与管理》2014,(4):16-19

随着生态旅游的兴起以及旅游业的多元化快速发展,湿地生态旅游逐渐受到人们的关注和亲近。湖北省湿地资源丰富多样,发展湿地生态旅游的条件优越,但在开发湖北湿地生态旅游资源过程中也存在一些问题。在实地调研和查阅相关资料的基础上,认真分析了开发湖北湿地生态旅游资源的优势、劣势、机遇和挑战,为该地区的生态旅游资源开发提供参考。  相似文献   

甘肃石羊河湿地景观生态特征及生态建设策略     

兰芳芳  陶雪松 《湿地科学与管理》2014,(3):20-23

分析了甘肃石羊河湿地景观生态的基本特征和变化情况,以维护湿地生物多样性为出发点,以恢复自然生态环境为主要目标,从景观生态学角度,提出甘肃石羊河湿地景现生态建设措施,采用自然恢复和人工修复相结合的湿地生态系统恢复形式,构建多样化动植物栖息生境,维持石羊河湿地生态系统的平衡,从而改善周边地区的生态环境,提升区域环境质量。  相似文献   

生态文明背景下广州市湿地经济发展研究     

徐松浚  徐正春 《湿地科学与管理》2014,(3):39-42

发展广州市湿地经济对改善当地民生、推进生态文明建设具有重要作用。广州市具有丰富的湿地资源,包括湿地水资源、湿地动植物资源和湿地旅游资源。目前广州市湿地经济发展模式主要为水产养殖模式、农业耕种模式、供水蓄能模式和生态旅游模式,但在发展过程中存在过度围垦、河流破坏、过度捕捞和盲目养殖、生态旅游开发不成熟等问题。针对存在的问题,提出以生态优先为原则、以统一规划为前提、以复合农业为重点、以生态旅游为特色的湿地经济发展建议。  相似文献   

Challenges and lessons from a wetland LiDAR project: a case study of the Okefenokee Swamp,Georgia, USA     

L. Shea Rose  Jared Ogle  Ed Beute  Jon Indridason  Jacob D. Hall 《国际地球制图》2013,28(3):210-226

Airborne LiDAR (Light Detection and Ranging) provides opportunities to generate high-quality digital elevation models (DEMs) even in wetland environments. Our project, performed over the Okefenokee Swamp in Georgia during the spring of 2010, shows that several, distinctive factors must be considered to ensure successful wetland LiDAR projects. Some of the challenges include selecting optimal flight times in accordance with weather variability and water levels, having effective and quality control protocols, applying and developing filtering and interpolation algorithms, breaklines in swamps and accounting for data striping and noise. While some of these issues are faced in any airborne LiDAR acquisition, many of these require special consideration in a low-slope wetland environment with water saturated soils, widespread shallow water, and sediments and extensive vegetation. An examination of these issues and how they were handled will help in ensuring the success of future LiDAR acquisitions and, in particular, will advance knowledge of producing quality DEMs in wetland environments.  相似文献   

Growth and survival of Halimione portulacoides stem cuttings in heavy metal contaminated soils     

《Marine pollution bulletin》2013,76(1-2):28-32

The halophytic shrub Halimione portulacoides demonstrates a high tolerance to heavy metal contamination and a capacity for accumulating metals within its tissues. On the Iberian Peninsula, this species has colonized habitats with high levels of metal pollution. The aim of this study is to analyze the response of H. portulacoides stem cuttings to this pollution. Growth, photosynthesis and metal uptake were examined in H. portulacoides through an experiment in which stem cuttings were replanted in metal-contaminated soil. This condition decreased growth and lowered both photosynthetic rate and stomatal conductance. Reduced photosynthetic performance was largely due to the reduced concentration of photosynthetic pigments. Despite these responses, there was some important evidence suggesting the phytoremediatory potential of Halimione stem cuttings. The results of our study indicate that this salt-marsh shrub may represent a biotool of value in the restoration of polluted areas.  相似文献   

Hydrological drivers of wetland vegetation community distribution within Everglades National Park,Florida   总被引：1，自引：0，他引：1  

M. Jason Todd  R. Muneepeerakul  D. Pumo  S. Azaele  F. Miralles-Wilhelm  A. Rinaldo  I. Rodriguez-Iturbe 《Advances in water resources》2010

The influence of hydrological dynamics on vegetation distribution and the structuring of wetland environments is of growing interest as wetlands are modified by human action and the increasing threat from climate change. Hydrological properties have long been considered a driving force in structuring wetland communities. We link hydrological dynamics with vegetation distribution across Everglades National Park (ENP) using two publicly available datasets to study the probability structure of the frequency, duration, and depth of inundation events along with their relationship to vegetation distribution. This study is among the first to show hydrologic structuring of vegetation communities at wide spatial and temporal scales, as results indicate that the percentage of time a location is inundated and its mean depth are the principal structuring variables to which individual communities respond. For example, sawgrass, the most abundant vegetation type within the ENP, is found across a wide range of time inundated percentages and mean depths. Meanwhile, other communities like pine savanna or red mangrove scrub are more restricted in their distribution and found disproportionately at particular depths and inundations. These results, along with the probabilistic structure of hydropatterns, potentially allow for the evaluation of climate change impacts on wetland vegetation community structure and distribution.  相似文献   

Consequences and Implications of Anthropogenic Desalination of Salt Marshes on Macrobenthos          下载免费PDF全文

Shanze Li  Baoshan Cui  Tian Xie  Xiaojing Shao  Menglu Zhang 《洁净——土壤、空气、水》2016,44(1):8-15

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广西湿地资源现状与保护对策   总被引：3，自引：1，他引：2  

李桂荣  梁士楚 《湿地科学与管理》2008,4(1):40-43

本文分析了近年来广西湿地生境、类型、野生动植物资源、水资源保护与可持续利用等方面的现状,并指出了存在的问题及今后的保护对策。  相似文献