Results 11 to 20 of about 4,101 (130)

洮儿河中下游流域湿地景观演变及驱动力分析

open access: yesShuitu Baochi Xuebao, 2004
应用景观生态学理论,分析了1986,1996,2000年洮儿河中下游流域湿地景观的演变过程,探讨了湿地的数量消长、转化和湿地景观格局特征的变化趋势以及湿地景观演化的驱动力因素,指出十几年来湿地景观数量、分布总体呈明显下降趋势,湿地主体由自然湿地向人工湿地转变,水文因素是湿地景观演变的直接驱动力,自然因素和人为因素以不同强度和方式影响湿地的演化。
郭跃东 何岩 张明祥 严登华
doaj   +2 more sources

三江平原湿地冷湿效应研究

open access: yesShuitu Baochi Xuebao, 2002
湿地是重要的自然资源,具有巨大的环境功能和环境效益,冷湿效应是湿地的累积环境效应之一。研究湿地的冷湿效应有助于从水热角度进一步揭示湿地的生态环境效应,为湿地的保护及合理利用提供依据。测试结果表明,三江平原湿地冷湿效应与湿地植被及其积水深度有关。选择漂筏苔草湿地、毛果苔草湿地、小叶章湿地以及农田4种类型进行对比研究,其中漂筏苔草积水最深,冷湿效应最大,其次为毛果苔草,小叶章最小。不同下垫面近地面气温和湿度变化不同,但基本趋势是一致的,即随着高度增加,温度升高,湿度降低。6月份和9月份的地温变化趋势明显不同。
高俊琴 吕宪国 等
doaj   +2 more sources

Using Harvest Data to Assess Factors Influencing Regional Population Declines of Muskrats (Ondatra zibethicus) 利用捕获数据评估影响麝鼠 (Ondatra zibethicus) 区域种群数量下降的相关因素

open access: yesWildlife Letters, EarlyView.
Reported annual per‐capita harvest of muskrats (PCHM) decreased as wetland complexity (total number of wetland patches) decreased in 13 state and federal wetland areas in the Midwest, USA. Our results support the hypothesis that regional‐scale declines in the abundance of muskrats are likely associated with the losses to wetland habitats throughout the
Tim L. Hiller   +5 more
wiley   +1 more source

From Crisis to Resilience: Rethinking Urban Flooding and Groundwater Recharge in Bengaluru City, India

open access: yesWorld Water Policy, Volume 12, Issue 3, August 2026.
ABSTRACT Bengaluru, a primary metropolitan centre in India, is currently grappling with the dual crises of urban flooding and severe groundwater depletion. These challenges are driven by rapid urbanization, which has seen built‐up areas increase from 42% to 86% over two decades, resulting in a dramatic loss of vegetation and wetlands.
S. Biswas, S. V. B. Patel, B. Maheshwari
wiley   +1 more source

陕西省安康瀛湖湿地保护区水鸟群落特征及多样性

open access: yes野生动物学报, 2021
湿地鸟类不仅是鸟类的重要组成部分,也是湿地环境质量变化的重要指示物种。根据陕西安康瀛湖湿地保护区湿地生境状况,将研究区划分为河流湿地、水库湿地、沼泽和草甸湿地3种类型,于2016年9月—2019年8月,采用样线法与样点法对瀛湖湿地保护区水鸟群落特征和多样性进行调查,共记录到湿地水鸟68种,隶属8目17科,其中,旅鸟25种,冬候鸟20种,夏候鸟13种,留鸟9种,迷鸟1种;国家一级保护水鸟2种,国家二级保护水鸟5种,省级重点保护水鸟12种,“三有”水鸟43种;广性分布水鸟11种,中性分布水鸟23种 ...
龚晓松郭全忠
doaj  

Wings of Change: Motivations, Challenges, and Environmental Concerns Among Birdwatchers 变革之翼:观鸟者的动机、挑战与环境关切

open access: yesWildlife Letters, Volume 4, Issue 2, Page 83-93, June 2026.
Birdwatching in Nepal has high potential to support avain biodiversity and tourism. Conservation was identified as the primary motivation for birdwatching, followed by enjoyment and achievement purposes. Health/wellbeing benefits, social and economic factors showed moderate representation, whereas academic motivation played a relatively minor role ...
Kamal Raj Gosai, Hem Bahadur Katuwal
wiley   +1 more source

Defining and identifying relevant stakeholders to advance effective conservation

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
The challenge of defining stakeholders in environmental science and an approach for refining existing definitions. Abstract Stakeholder is a contested term that has spawned a multitude of ad hoc definitions. The ambiguity of these definitions has oftentimes impeded transdisciplinary research in environmental governance and conservation science because ...
Milan Büscher   +5 more
wiley   +1 more source

In Situ MOF Pyrolysis Construction of Hierarchical Porous Co‐Nanoparticles/Carbon Cloth Composites for Enhanced Electromagnetic Wave Shielding and Absorption

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT The development of high‐performance electromagnetic protection materials integrating broadband absorption and effective shielding capabilities is hindered by challenges in simultaneously optimizing multiple electromagnetic properties through conventional material designs.
Changlong Du   +9 more
wiley   +1 more source

吉林省西部地区重要湿地及其生态环境功能

open access: yesShuitu Baochi Xuebao, 2001
根据重要湿地划分标准,确定吉林西部重要湿地,包括查干湖湿地区、向海湿地区、莫莫格湿地区、大布苏湖湿地区、龙沼沼泽区等,并对吉林西部湿地的生态环境功能进行了论述, 对该地区湿地保护、管理与开发建设具有一定意义.
王国平 张玉霞 高峰
doaj  

Gravity‐Driven Inclination Sensor Based on Liquid Metal Interface Migration in Anisotropic Microchannels for Information Transmission and Continuous Surface Topography Scanning

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT With the continuous advancement of materials science and technology, the rare metal gallium has increasingly emerged as a promising alternative to the toxic metal mercury. Although existing research has predominantly focused on the high electrical conductivity and excellent deformability of liquid metal (LM), its intrinsic fluidic property ...
Feifan Guo   +6 more
wiley   +1 more source

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