废弃混凝土的开发利用

混凝土仍将是21世纪一种应用最广泛的建筑材料，但越来越多的拆除建筑物会产生大量的废弃混凝土块，既带来环境污染，又造成资源浪费。搞好废旧混凝土的开发利用，具有明显的环境效益和经济效益。     

广州市城市供水水源的合理开发与保护

由于居民生活和商业用水量的急剧增加和市域内水源水质的下降，广州市面临着严重的水质性缺水的威胁。     

关于大庆龙凤湿地环境管理问题的思考

大庆龙凤湿地是除香港外国内唯一的城区中的湿地,在城市生态环境保护中具有重要意义。虽然建成自然保护区,并设立保护区管理处,但湿地资源仍受到破坏。剖析大庆龙凤湿地环境管理中问题的产生原因,研究湿地的保护措施及合理开发利用。     

房地产开发项目环境影响评价的探讨

根据房地产开发项目的特点,阐述该项目施工期、运行期分别对环境产生的不良影响,着重分析施工期扬尘、运行期废水污染情况,以及减缓该不利影响的措施,最后总结房地产开发项目环境影响评价还须进一步探讨的问题。     

Fishery resource management in Chilika lagoon: a study on coastal conservation in the Eastern Coast of India

A significant proportion of the fishing population comprises small-scale fishermen and many studies illustrate that these people are exploited by middlemen in the process of fish marketing combined with money lending. The negative dependency gives rise to poverty and triggers indiscriminate fish catch that threatens fishery resources depletion. This article explores the root causes of failures in resource-led development from the viewpoint of coastal resource conservation. The study presents a case study of Chilika lagoon, India and focuses on the interaction between small-scale fishermen and middlemen. The findings reveal that most of the small-scale fishermen have been exploited by specific middlemen and the underlying causes of the present fish marketing structure stem from (i) indebtedness and (ii) the unstable situation because of perpetual conflicts over fishery resources among the fishers across Chilika lagoon. Based on these observations, this article presents some recommendations on fishery resource conservation from the perspective of a fish marketing structure.

关于植物化学生态信息的开发与利用

植物的化学信息，早已被人们所关注和利用，目前，该研究已成为生态学和化学生态学中最活跃，最能为社会与生产服务的领域之一，生态系统中的物质流和能量流是资源，而生态学的信息则是更具开发，利用前景的资源。     

余甘子的保健价值及开发利用前景

我国南方山区、半山区广泛分布的余甘子是一种具有药用价值的野生或栽培果树。成分分析表明,余甘果有较高的营养价值,尤其是维生素C含量很高。进一步研究即通过体外模拟试验,动物试验、人体试验以及病区临床试验证明,余甘果汁能阻断强致癌物N-亚硝基化合物在动物及人体内的合成,阻断率达90％以上,均比同浓度的维生素C高。同时还发现,余甘果汁中含有超氧化物歧化酶,每毫升鲜果汁中含有的酶活力为 964.28国际单位;老人饮用余甘果汁2个月后,血液中红细胞超氧化物歧化酶活力提高1.5倍,并降低了血浆中脂质过氧化物的含量,显示了余甘果汁对人体具有较明显的防癌、抗衰老保健作用。我国余甘子资源十分丰富,民间早有利用余甘果实健身治病的习惯,因此,它是一种很有开发价值的水果。本文较详细地论述了余甘果的保健价值,并对其开发利用现状及前景作了简要的介绍。     

加强矿产资源开发中对环境的保护与治理

矿产资源开发对促进国民经济的发展具有重要的作用,但与此同时也带来不少环境问题,如破坏土地和生态环境,在矿石采选冶中产生“三废”对周围环境严重污染,破坏水资源平衡,引发地质灾害等。因此,现在必须高度重视并加强矿产资源开发中对环境的保护与治理,使矿产资源开发与矿山环境保护协调发展。首先,应制订并实施各地区的矿产开发规划,根据环境容量等调整矿业布局和矿业结构,严格对矿山环境进行监测、监管;其次,应加强对矿山环境的调查和评价,加强矿山环境保护的科技研究,提高矿山环境防治技术水平并加速技术推广;最后,应加强矿山环境保护的宣传教育,使矿山环境在全体公民的参与和监督下得到有效的保护。     

Changes in interacting species with disturbance

Human-influenced changes in the diversity and abundance of native wildlife in a southern boreal forest area, which became a national park in 1975, are used to develop working hypotheses for predicting and subsequently measuring the effects of disturbance or restoration programs on groups of interacting species. Changes from presettlement conditions began with early 1900 hunting, which eliminated woodland caribou (Rangifer tarandus) and elk (Cervus elaphus), and reduced moose (Alces alces) to the low numbers which still persist. Increases in white-tailed deer (Odocoileus virginianus), as these other cervid species became less abundant or absent, provided enough alternative food to sustain the system's carnivores until plant succession on previously burned or logged areas also caused deer to decline. With increased competition for reduced food, carnivore species also became less abundant or absent and overexploited some prey populations. The abilities of interacting species to maintain dynamically stable populations or persist varied with their different capacities to compensate for increased exploitation or competition. These relationships suggested a possible solution to the problem of predicting the stability of populations in disturbed systems. For the 1976–1985 period, a hypothesis that the increased protection of wildlife from exploitation in a national park would restore a more diverse, abundant, and productive fauna had to be rejected.     

武隆县旅游开发中的生态安全对策研究

旅游开发中的生态安全问题与整个旅游产业的可持续发展是息息相关的。本文通过对重庆武隆旅游开发现状的调查，对其旅游开发过程中的生态安全问题对策进行了研究，以期对重庆旅游业的可持续发展，以及整个西部旅游业的可持续发展提供借鉴和参考作用。