哺乳动物群指示的气候旋回——以周口店早更新世哺乳动物群为例

文章根据对周口店地区四个哺乳动物群的分析，讨论了该区早更新世气候及生态环境的变迁。第１８地点显示了约１．９０ＭａＢ．Ｐ．的干凉气候和森林—草原植被。第１２地点指示了１．７０ＭａＢ．Ｐ．的湿热气候和茂密森林生态环境。东洞则记录了１．２０ＭａＢ．Ｐ．的干冷气候和草原景观。到第９地点时（约１．００～０．９０ＭａＢ．Ｐ．），气候炎热，森林和草原植被同时发育     

四川内江松柏寨旅游资源特征及开发浅论

详细介绍了内江松柏寨的七山、七堰、八景等自然景观；对以般若寺为代表的寺庙、寨门以及历代名人所留下的行踪和墨迹作了生动描写；提出以生态旅游为理念进行统一规划，并采取保护性开发的若干建议。     

横穿贝加尔湖山脉北部寒区的线性工程

The development of North Transbaikalye mineral resources (e. g. the Chiney deposit of iron titanium-vanadium-magnetite ores and Udokan copper deposits) is impossible without the establishment of industrial and transport infrastructure, one component of which are linear engineering constructions (drive railways, by-line auto roads, platform passages, protecting constructions, and others). However,on condition of spreading permafrost rocks this is conjugated with certain ecological risk just as from the transport network objects so for the objects themselves. A special attention is paid in the paper to considering of problems of projecting and constructing railways on the Udokan ridge.     

Type-specific and indicator taxa of phytoplankton as a quality criterion for assessing the ecological status of Finnish boreal lakes

Key issues in the implementation of the Water Framework Directive are classification of lakes using biological quality parameters and type-specific reference conditions. This work is one of three studies considering different metrics of phytoplankton in the classification of ecological status. Phytoplankton was studied in a total of 55 Finnish boreal lakes, including 32 reference lakes. We tested the suitability of taxonomic composition and abundance of phytoplankton groups for biological classification. We also preliminarily determined the type-specific taxa for the studied lakes. The type-specific taxa for reference conditions are coincidently the indicator species/taxa for high ecological status. Interestingly, some taxa type-specific for impacted oligo-humic lakes proved to be the type-specific taxa for humic reference lakes. The pressure of human impact was observed not only as increase of biomass but also as changes in the species composition. The phytoplankton composition indicated the ecological status of impacted lakes moderately well. There was some variation in the indications given by different algal groups, probably due to the preliminary class boundaries used. However, the preliminary combination of indicative parameters to estimate the ecological status of the studied impacted lakes was in general in accordance with earlier classification of water quality in Finnish lakes.     

三江源地区气候变化及其对生态环境的影响

利用EOF等方法通过计算 1 96 2～ 2 0 0 1年 4 0年来三江源地区 1 6个气象台站气温、降水、蒸发资料 ,分析了三江源地区近 4 0年来气候变化的异常特征及其对生态环境的影响 ,结果表明 :三江源地区气候变化表现为气温升高、降水减少和蒸发增大的干旱化气候变化趋势 ,同时 ,在气候干旱化和人为活动的影响下出现了草场退化、湖泊萎缩、河流流量减少、土壤沙化和水土流失等生态环境荒漠化问题。     

全球气候变化背景下的西北地区生态环境建设、可持续发展

本文通过对西北地区气候与生态环境、可持续发展的调查研究，提出我国应高度重视全球气候变化的影响，要在气候变化的背景下，通过人类的有序活动促进我国生态环境建设和经济社会的可持续发展，实现人和自然的和谐共存。     

济南-济阳地区土壤地球化学特征

通过对济南—济阳研究区内土壤地球化学特征的对比分析,探讨了元素的丰缺、土壤质量及对农业环境的影响。     

河北省生态环境地球化学

介绍河北省生态环境地球化学特征及其与人体健康、农作物生长等关系。为环境治理、地方病防治、农业生产等需要,提供了区域环境地球化学的基础。     

基于生态经济理论的生态需水计算方法研究

在简述生态需水研究现状的基础上,结合以可持续发展为基础的生态经济理论,提出了基于生态经济思想的生态需水概念,并进行了理论分析.根据生态经济领域中的生态价值理论,确定不同生态需水量条件下的生态价值,进而通过水资源的生态价值与经济价值之间的相互关系确定合适的生态需水量,并通过实例对该方法的具体步骤进行了说明,认为由该法所确定的生态需水量符合客观实际,可以作为生态建设过程中生态需水研究的方法之一.该法通过水资源将生态系统和经济系统联系在一起,对于研究可持续发展条件下的水资源利用有一定的现实意义.     

生态需水的理论内涵探讨

从生态系统水分循环的角度,较系统地探讨了生态需水的理论内涵,对生态系统水资源配置中相关且容易混淆的概念加以辨析,并分析了它们之间的相互关系.研究认为:生态缺水是生态系统水资源配置最直接的依据,而生态需水、生态储水的计算评价则是确定生态缺水的基础.通常,生态系统的水资源配置,必须在区域生态调查的基础上,结合社会经济发展状况,提出生态目标,然后进行生态需水估算、生态储水评价、生态缺水评估,并通过生态用水的可行性分析,最终确定生态保护和建设的水资源配置方案.