男生戴手铐
发表于 2025-3-23 12:52:54
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某人
发表于 2025-3-23 16:50:02
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aerobic
发表于 2025-3-23 20:49:49
https://doi.org/10.1007/978-3-662-60684-1ts of contaminants in the environment. Progress toward this goal has been slow. We believe future advancement requires increased emphasis on interdisciplinary studies which comprehensively investigate chemical fate and effect at spatial and temporal scales relevant to the natural systems of interest
哀求
发表于 2025-3-23 23:01:58
Analytische Informationssysteme make-up of communities affect ecosystems in ways that would be characterized as ‘de-stabilizing’. Modelling studies have also focused on stability, but in a well-defined mathematical sense. Conspicuously absent from the scientific dialogue has been an operational definition of stability that has bo
sleep-spindles
发表于 2025-3-24 02:46:57
Analytische Informationssystemey toxicology and the realism of field-based measurement. This trade-off is brought most sharply into focus through the issue of extrapolation of risk estimates between the laboratory and the field. It is a paradigm of ecotoxicology that it is possible to build tiers of test procedures, rooted in hig
侵略
发表于 2025-3-24 07:55:07
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BABY
发表于 2025-3-24 11:22:25
Behandlungstechnische Gesichtspunkte,ding of exposure-effect relationships at ecosystem level. A range of tests has been developed or is under development (.) for the assessment of exposure - effect relationships in terrestrial systems. Most of these are single-species tests and the interpretation of the results are problematic because
Axon895
发表于 2025-3-24 18:37:59
,Wir nutzen die analytischen Möglichkeiten, problems when attempts are made to use laboratory results to predict the impact of pollutants in the field, since it is not clear if an extrapolation factor should be applied. Clearly, if results from laboratory assays are to be placed in their correct context within the risk assessment procedure,
Vo2-Max
发表于 2025-3-24 20:48:27
The use of models in ecological risk assessmenttrapolate results from single-species tests to so-called ‘safe levels’ in the environment. Despite the usefulness of some of these methods, it is felt that single-species tests alone do not provide sufficient basis for ecological risk assessment, and the use of micro-and mesocosms, and mathematical models is advocated to acquire additional data
磨碎
发表于 2025-3-25 02:23:55
Allgemeine Gleichungen der Kegelschnitte,Upper soil horizons are important natural resources for the growth of plants for food and industry (crops, animal produce, timber and biofuels). The maintenance of soil fertility, with minimal exogenous inputs, is vital for long-term sustainable plant productivity with viable economic returns