单种及混合培养条件下Fe、Mn对赤潮生物塔玛亚历山大藻(Alexandriumtamarense)生长的影响

研究了单种和两种混合世量培养条件下，Ｆｅ－ＥＤＴＡ（Ｆｅ＾３＋）、Ｍｎ（Ｍｎ＾２＋）浓度对甲藻塔玛亚历山大藻（Ａｌｅｘａｎｄｒｉｕｍ ｔａｍａｒｅｎｓｅ）生长及细胞大小的影响。同时考察了与其混合培养中的肋骨条藻（Ｓｋｅｌｅｔｏｎｅｍａ ｃｏｓｔａｔｕｍ）和圆筛藻（Ｃｏｓｃｉｍｏｄｉｓ ｃｕｓ ｓｐ．）的生长特性，结果表明在本实验的浓度范围内（Ｆｅ－ＥＤＴＡ，０－３．１５μｇ／Ｌ，Ｍｎ＾２＋，０－０     

Metal pollution in relation to mass outbreaks of Dendrolimus punctatus Walker on Pinus massoniana Lamb. in China

ＩｎｔｒｏｄｕｃｔｉｏｎＩｔｉｓｇｅｎｅｒａｌｌｙａｓｓｕｍｅｄｔｈａｔａｃｉｄｒａｉｎ，ｂｉｏｓｐｈｅｒｉｃｏｚｏｎｅ，ｍｅｔａｌｆａｌｌｏｕｔｏｒｓｏｍｅｏｔｈｅｒｐｏｌｌｕｔａｎｔｓｃａｕｓｅｆｏｒｅｓｔｄｅｃｌｉｎｅｔｈｒｏｕｇｈｐｈｙｔｏｔｏｘｅｍｉａｓｗｈｉｃｈｓｈｏｗｓｐｅｃｉｆｉｃｓｙｍｐｔｏｍｓｏｆｄｉｓｅａｓｅ．Ｉｔｈａｓｂｅｅｎｓｈｏｗｎｅｘｐｅｒｉｍｅｎｔａｌｌｙｔｈａｔｓｕｃｈｄｉｓｅａｓｅｓｙｍｐｔｏｍｓｍａｙｒｅａｌｌｙｄｅｖｅｌｏｐｉｎｔｒｅｅｓｗｈｅｎｔｈｅｙａ…     

沸石载铜除藻剂的探讨

 除藻剂;沸石载铜;海洋原甲藻;赤潮生物;赤潮治理     

温度场数值模拟后置处理中等温线的算法研究

应用场论和映射法对温度场等温线的算法进行了分析研究。通过数量场方向导数、梯度等理论 ,建立了求取等温线的算法 ,通过母单元与子单元之间一一对应关系 ,建立了间接绘制等温线的算法。     

Analysis on the long term discharge of a catchment

ＩｎｔｒｏｄｕｃｔｉｏｎＩｔｉｓｗｅｌｌｋｎｏｗｎｔｈａｔｔｈｅｃｈａｒａｃｔｅｒｉｓｔｉｃｓｏｆｔｈｅｃａｔｃｈｍｅｎｔｄｉｓｃｈａｒｇｅｗｉｌｌｃｈａｎｇｅｗｉｔｈｌａｎｄｕｓｅ.Ｉｎｔｈｉｓｐａｐｅｒ,ｔｈｅｆｏｃｕｓｉｓｔｏｄｉｓｃｕｓｓｔｈｅｍｏｄｅｌｏｆｌｏｎｇｔｅｒｍｄｉｓｃｈａｒｇｅｏｆｃａｔｃｈｍｅｎｔｗｈｉｃｈｉｎｃｌｕｄｅｓｔｗｏｋｉｎｄｓｏｆｌａｎｄｕｓｅ :ｏｎｅｉｓｆｏｒｅｓｔａｔｔｈｅｕｐｐｅｒｐａｒｔｏｆｔｈｅｃａｔｃｈｍｅｎｔ,ａｎｏｔｈｅｒｉｓｐａｄｄｙｆｉｅｌｄ…     

丽江城市水环境调查及研究

在多年监测工作基础上,对丽江的城市水环境连续12个月的监测分析表明 上游水质优良,中、下游污染严重,主要污染因子依次为粪大肠菌群、氨氮、总P、BOD 5.城市水环境冬季(平水期)较好,春、夏季(枯水期和洪水期)较差.     

室内空气污染分析及防治措施

简述了室内空气污染的种类和特点，多角度论述了室内空气污染的防治措施。     

沭阳县生活垃圾现状调查及处理方案的优化选择

通过对沭阳县生活垃圾的现状调查与监测,并对国内外垃圾处理技术进行比较和优化,重点介绍垃圾处理新技术ITAD垃圾处理的方法,实现垃圾完全资源化利用,具有良好的经济效益和环境效益。     

利用农作物秸秆生产生物质“颗粒”燃料

利用农业的废弃物及各类秸秆或杂草，经粉碎、蒸汽搅拌，在一定的温度下进行挤压（压缩）、干燥等工序，制成生物质“颗粒”燃料，替代煤、石油等不可再生燃料，具有良好的经济效益、环境效益和社会效益。     

Integrating Landscape and Metapopulation Modeling Approaches: Viability of the Sharp-Tailed Grouse in a Dynamic Landscape

Abstract:  The lack of management experience at the landscape scale and the limited feasibility of experiments at this scale have increased the use of scenario modeling to analyze the effects of different management actions on focal species. However, current modeling approaches are poorly suited for the analysis of viability in dynamic landscapes. Demographic (e.g., metapopulation) models of species living in these landscapes do not incorporate the variability in spatial patterns of early successional habitats, and landscape models have not been linked to population viability models. We link a landscape model to a metapopulation model and demonstrate the use of this model by analyzing the effect of forest management options on the viability of the Sharp-tailed Grouse (  Tympanuchus phasianellus ) in the Pine Barrens region of northwestern Wisconsin (U.S.A.). This approach allows viability analysis based on landscape dynamics brought about by processes such as succession, disturbances, and silviculture. The landscape component of the model (LANDIS) predicts forest landscape dynamics in the form of a time series of raster maps. We combined these maps into a time series of patch structures, which formed the dynamic spatial structure of the metapopulation component (RAMAS). Our results showed that the viability of Sharp-tailed Grouse was sensitive to landscape dynamics and demographic variables such as fecundity and mortality. Ignoring the landscape dynamics gave overly optimistic results, and results based only on landscape dynamics (ignoring demography) lead to a different ranking of the management options than the ranking based on the more realistic model incorporating both landscape and demographic dynamics. Thus, models of species in dynamic landscapes must consider habitat and population dynamics simultaneously.