悠然
发表于 2025-3-23 10:18:47
Sedimentary Diatoms and Chrysophytes as Indicators of Lakewater Quality in North Americaiables and to characterize the trajectories of aquatic ecosystems accurately. Unfortunately, historical water quality data are often lacking, and so environmental monitoring programs must either continue for many years before meaningful trends can be inferred or else indirect proxy techniques, such
pessimism
发表于 2025-3-23 14:28:12
Dinoflagellate Cysts as Indicators of Cultural Eutrophication and Industrial Pollution in Coastal Selished just recently, and though so far based on only a few studies it shows a clear potential for development as a robust working method for environmental science. In contrast to almost all other microfossil groups included in this book, the cysts used here are acid-resistant and therefore not subj
一个搅动不安
发表于 2025-3-23 21:10:49
Environmental Stratigraphyrds with an estuarine circulation pattern, where surface or transitional lowdensity water extends down to sill depth and thereby inhibits frequent renewals of the denser deep basin water. The oxygen regimes in such fjords are very sensitive to increased fluxes of organic carbon whether due to natura
Haphazard
发表于 2025-3-23 22:31:12
A Practical Guide to Small-Area Projections,logy in petroleum exploration during the last half-century, foraminifera were used much earlier to date strata in a water well near Vienna, Austria in 1877. Further studies followed in the United States, but it was primarily J. A. Udden of Augustana College (Illinois), who, in 1911, began to use mic
过时
发表于 2025-3-24 03:30:13
https://doi.org/10.1007/978-1-4615-2796-1ng standing crop, species abundance, and species diversity) and the attributes of the environment (physical, chemical, and biological). Such studies may be . involving a suite of samples collected over a geographic area during a very short time interval (days), or ., where samples are collected from
NAG
发表于 2025-3-24 10:02:40
How Net Present Value Is Implemented,t system. Chemical analyses are often used, but they are expensive and can measure only a fraction of the contaminants present at a given time. Such analyses may also require continuous monitoring in rapidly changing environments such as estuaries and coastal lagoons (paralic environments). Moreover
motivate
发表于 2025-3-24 14:27:21
An Evaluation of the IPCC WG III Assessments which records fundamental environmental changes and evolutionary processes of earth history, (2) small size and, consequently, high abundance in small samples, (3) wide distribution over all marine environments, (4) high taxonomic diversity, and (5) very short reproductive cycles (month to year), w
草率男
发表于 2025-3-24 17:38:17
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NEXUS
发表于 2025-3-24 19:34:50
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影响深远
发表于 2025-3-25 02:53:00
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