厦门海域环境现状分析与可持续发展策略

通过分析厦门海域环境的现状，提出海洋环境保护和可持续发展的策略。     

风景区索道建设与环境保护关系探讨

对于风景区索道建设的现状、主要问题、环境影响、安全隐患防范、索道承载力等方面，进行了分析，指出风景区内修建索道缆车不能以牺牲环境为代价，并就完善风景区索道建设管理提出相应的对策。     

可持续发展目标下环境影响评价(EIA)的新发展

描述了可持续发展的内涵及其特征，分析了传统ＥＩＡ不适应可持续发展目标的弊端，论述了为适应可持续发展目标而带来的传统ＥＩＡ的新发展，战略环境影响评价，累积影响评价以及强化ＥＩＡ中的公众参与。     

三峡工程泥沙淤积对重庆港区航运安全的影响与治理措施的探讨

川江为大型山区河流,水量充沛、坡陡流急,较细泥沙不易淤积,河床主要为岩石与卵石所构成,浅滩泥沙冲淤规律为“洪淤枯冲”,年内冲、淤基本平衡。由于水流能量大,浅区短,往往以较少的工程量即可取得良好的整治效果,满足航运发展的需要。三峡工程建成后,库区水流、泥沙运动发生很大变化。在较大范围的常年库区,水深增大,水流减缓,航行条件显著改善。但在变动回水区,天然河道与水库状态交替出现,将对重庆港区航运产生严重的不利影响。本文根据三峡工程泥沙模型的试验,阐述了库尾泥沙淤积发展及其分布规律。并针对存在的问题,从泥沙治理、岸坡整治、炸礁清库等方面进行综合分析探讨,为确保重庆港区航运安全畅通提供了科学对策。     

中国西北地区生态环境的现状及保护对策

近四十年来,由于种种原因,我国西北原本十分脆弱的生态环境愈加恶化,主要表现存:水土流失严重;绿色植被边培植、边破坏;草原退化,土地沙化;气候干旱,水资源短缺并遭受污染;大批珍稀动值物种群濒临灭绝。对此现状,我们认为,只有加强领导,强化生态意识,克服短期行为,大力植树种草,增加绿色覆盖,保护和合理利用水资源,才能改善大西北的生态环境。     

芦山地震灾区生态补偿对策研究

芦山大地震造成了巨大的生态破坏,导致了生态系统发生退化,尤其是地形条件极其复杂的山地生态系统退化更加严重。由于地震而引发的次生灾害对于山地生态系统的影响也非常显著。生态系统及其服务的可持续性是人类社会可持续发展的决定性约束因素,震后人类赖以生存与发展的自然环境面临威胁。因此,修复生态系统,实施生态补偿是震后保护生态环境问题的迫切需要。文章分析了芦山地震对灾区生态环境及自然保护区的影响,提出了震后生态补偿的思路、重难点和对策建议,以供雅安灾后生态重建借鉴。     

Iowa Statewide Stream Nitrate Load Calculated Using In Situ Sensor Network

Various techniques exist to estimate stream nitrate loads when measured concentration data are sparse. The inherent uncertainty associated with load estimation, however, makes tracking progress toward water quality goals more difficult. We used high‐frequency, in situ nitrate sensors strategically deployed across the agricultural state of Iowa to evaluate 2016 stream concentrations at 60 sites and loads at 35 sites. The generated data, collected at an average of 225 days per site, show daily average nitrate‐N yields ranging from 12 to 198 g/ha, with annual yields as high as 53 kg/ha from the intensely drained Des Moines Lobe. Thirteen of the sites that capture water from 82.5% of Iowa's area show statewide nitrate‐N loading in 2016 totaled 477 million kg, or 41% of the load delivered to the Mississippi–Atchafalaya River Basin (MARB). Considering the substantial private and public investment being made to reduce nitrate loading in many states within the MARB, networks of continuous, in situ measurement devices as described here can inform efforts to track year‐to‐year changes in nitrate load related to weather and conservation implementation. Nitrate and other data from the sensor network described in this study are made publicly available in real time through the Iowa Water Quality Information System.     

Species of the Month: Anti-Whaling,Mediated Visibility,and the News

Paul Watson, founder of the Sea Shepherd Conservation Society and captain of anti-whaling ship the Steve Irwin, has emerged as one of the world's most visible environmental protesters. This essay, based in part on a long interview with Watson in Australia in 2009, analyzes his mediated visibility and thus capacity to participate in public debate by isolating various components of his strategic activities under four themes: mediated protest, symbolic power, media practices, and celebrity. It argues that Watson's visibility involves a complex flow of information and meanings across various “old” and “new” media form, but remains reliant on news media. Thus, despite his generally astute media practices and strategies, Watson's visibility is contingent on a set of professional practices and logics unlikely to provide sustained news access or long-term legitimacy to a political “outsider.”     

江苏省"三沿"战略与区域协调发展

江苏省南北经济发展水平客观上存在很大的差距,已经成为制约全省经济协调发展的重要因素。为了加强苏中、苏北地区的发展,缩小省域内部南北发展差距,从区域协调发展的紧迫性及现实意义出发,论述了“三沿”战略的背景及其理论依据,分析了“三沿”战略在江苏省区域发展中的地位与作用,并提出实现江苏省区域协调发展的主要对策与措施。     

中国加入WTO后沈阳环保产业发展的对策研究

分析研究加入 WTO后给我国及沈阳环保产业发展带来的机遇与挑战 ,阐述沈阳环保产业应对战略性思考。