نتایج جستجو برای: quantity and diversity
تعداد نتایج: 16854509 فیلتر نتایج به سال:
What is the diversity of cyanobacteria in iron-depositing hot springs? We are currently conducting preliminary studies on the diversity of iron-tolerant CB isolated from irondepositing hot springs in and around Yellowstone National Park (WY, USA). Molecular analysis has confirmed the prediction [1] that the diversity of iron-tolerant CB is ill-defined. Analysis of 16S rRNA sequences from 15 uni...
The forest ecosystem is the main component of terrestrial ecosystems. The global climate and the functions and processes of soil microbes in the ecosystem are all influenced by litter decomposition. The effects of litter decomposition on the abundance of soil microorganisms remain unknown. Here, we analyzed soil bacterial communities during the litter decomposition process in an incubation expe...
background: extraction of blood genomicdnais one of the main approaches for clinical and molecular biology studies. although several methods have been developed for extraction of blood genomic dna, most of these methods consume long time and use expensive chemicals such as proteinase k and toxic organic solvent such as phenol and chloroform. the objective of this study was to developed easy and...
plant spacing and nitrogen are the most important factors for increasing tuberose quality and quantity. in this study, field experiment carried out as factorial randomized completely block design (rcbd) in 3 replications. different levels of nitrogen (0, 50, 100, 150, 200, 250 kg/ha) of ammonium nitrate was used. second factor was different plant spaces (10, 15, 20 and 25 cm). results showed th...
Transportation diversity (also called options, choice and multi-modalims) refers to the quantity and quality of transportation options available in a particular situation. It includes different modes, services and prices. Increased transport diversity can provide numerous benefits, including increased transport system efficiency, consumer savings, and support for equity objectives. Many of thes...
biodiversity/biological diversity Species, genetic, and ecosystem diversity in an area, sometimes including associated abiotic components such as landscape features, drainage systems, and climate. diversity indices Measures that describe the different components of biodiversity, such as species richness (alpha diversity), beta and gamma diversity, endemicity, and higher taxon richness. ecosyste...
Features provide a comprehensive global overview of extent and diversity of grasslands. Analyzes how humans shaped grasslands through millennia of use and which role they play in present-day agriculture. Quantifies the role of grasslands as biodiversity hotspots as well as the drivers threatening these. Evaluates the ecosystem services grasslands provide e.g. in terms of soil protection and car...
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