In this study, we explore the potential to reconstruct lake-level (and groundwater) fluctuations from tree-ring chronologies of black alder (Alnus glutinosa L.) for three study lakes in the Mecklenburg Lake District, northeastern Germany. As gauging records for lakes in this region are generally short, long-term reconstructions of lake-level fluctuations could provide valuable information on pa...

Against the background of global warming and frequent extreme precipitation events, changes in drought characteristics middle reaches Yellow River Basin (YRMB) have been particularly pronounced recent years. Under new situation, it is necessary to further our understanding risk basin its response mechanisms climate change. In this study, YRMB was utilized as research area. Based on (P) potentia...

Drought and wetness events have become common due to global warming, warranting the need for continuous analysis monitoring of drought wet safeguard people’s livelihoods. In this study, Standardized Precipitation Evapotranspiration Index (SPEI) was utilized analyze spatiotemporal characteristics in coastal Savannah agroecological zone from 1981 2021. Climate data 14 locations across were used c...

Drought is an extreme climate phenomenon that has a great impact on the economy, tourism, agriculture, and water resources. prediction can provide early warning of occurrence drought reduce losses. In this article, standard precipitation evapotranspiration index (SPEI) four time scales: SPEI-3, SPEI-6, SPEI-9, SPEI-12 are used to measure predict drought. Unlike general methods directly modeling...

Prediction of potential evapotranspiration (PET) using an artificial neural network (ANN) with a different architecture is not uncommon. Most researchers select the optimal statistical indicators. However, there still gap to be filled in future applications various drought indices and assessment location, duration, average, maximum minimum. The objective was compare performance PET computed ANN...

A genome and fatty acid analysis of 16 Pseudomonas stutzeri reference strains having DNA compositions ranging from 62.2 to 65.5 mol% G+C was performed by pulsed-field gel electrophoresis of XbaI and SpeI macrorestriction fragments and gas chromatography of total cellular fatty acids. Macrorestriction fragment patterns were evaluated by using previously described algorithms (D. Grothues and B. T...

We have cloned DNA methyltransferases (MTases) from various strains of Neisseria gonorrhoeae. Each of these clones represents a single specificity, indicating that the multiple gonococcal MTase specificities are encoded by monospecific MTases. The DNAs of five strains (FA5100, F62, MS11, Pgh3-2, and WR302) were digested with NheI, SpeI, or NheI plus SpeI and subjected to pulsed-field gel electr...