Search results for "forest"

Identification and Handling of Critical Irradiance Forecast Errors Using a Random Forest Scheme – A Case Study for Southern Brazil

2015

Abstract Large forecast errors of solar power prediction cause challenges for the management of electric grids. Here, the classification technique Random Forests is applied to analyze the possible linkage of hourly or daily forecast errors to the actual situation given by a set of meteorological variables. This form a prediction of the forecast error and is thus usable to update the forecast. The performance of this scheme is assessed for the example of irradiance forecasts in Brazil. While limited to none improvements are obtained for next-hour forecasts, significant improvements are obtained for the next-day forecasts.

Latvijas mežu vēsture (līdz 1940. gadam): mežu vēstures bibliogrāfija

1996

Saturs: Ievadam 3 Rādītājā lietotie saīsinājumi 4 Vispārējie materiāli 6 Mežu politika un likumdošana 24 Mežainība. Koku sugas 37 Meža dzīvnieki un medniecība 49 Meža izmantošana 56 Meža blakus izmantošana 62 Meža materiālu eksports un imports 64 Meža muzeji 68 Personālijas 69

Mijiedarbība inovācijā mazajos un vidējos uzņēmumos meža nozarē Latvijā

2013

Anotācija Promocijas darbs ir veltīts, lai izpētītu mijiedarbību kā kompleksu un notiekošu procesu inovācijā meža nozares mazajos un vidējos uzņēmumos. Trīs socioloģijas teoriju (Inovācijas difūzijas teorija, Aģentu tīkla teorija, Sektorālā inovācijas sistēmas pieeja) analīze ir nodrošinājusi izpratni par mijiedarbības komplekso iedabu un daudzveidību inovācijā, kā arī sagatavojusi zināšanu bāzi teorētiskā modeļa izveidei mijiedarbības izpētei inovācijā meža nozares mazajos un vidējos uzņēmumos. Pielietojot gadījuma izpētes un kvalitatīvās analīzes metodi, empīriskajā pētījumā ir izpētīti 11 inovācijas piemēri un veikta divu inovācijas gadījumu padziļināta analīze. Kopsavelkot promocijas da…

Assessing a computational fluid dynamic technique (CFD) to evaluate pressure losses in drip irrigation laterals

2005

Soil microbial diversity has an impact on plant diversity and safeguard

2015

Diversity of microbial plant symbionts has an impact on plant diversity. Examples are given for Mediterranean species.

Platform GenoSol: a new tool for conserving and exploring soil microbial diversity

2009

International audience; Soils are the principal reservoirs of microbial diversity and represent a core component of terrestrial ecosystems. There is an increasing demand for assessing the impact of agricultural and industrial practices on the environment at large scales in a context of global change. To address this demand, taxonomic and functional diversity of soil microbial communities, and their stability over time need to be characterized for predicting soil quality upon human activities, the evolution of this quality being expected to affect environment quality and public health. Recent methodological progresses have led to the development and automation of molecular biological tools (…

2019

With growing populations and climate change, assuring food and nutrition security is an increasingly challenging task. Climate-smart and sustainable agriculture, that is, conceiving agriculture to be resistant and resilient to a changing climate while keeping it viable in the long term, is probably the best solution. The role of soil biota and particularly arbuscular mycorrhizal (AM) fungi in this new agriculture is believed to be of paramount importance. However, the large nutrient pools and the microbiota of subsoils are rarely considered in the equation. Here we explore the potential contributions of subsoil AM fungi to a reduced and more efficient fertilization, carbon sequestration, an…

Impact of Rocky Desertification Control on Soil Bacterial Community in Karst Graben Basin, Southwestern China

2021

Microorganisms play critical roles in belowground ecosystems, and karst rocky desertification (KRD) control affects edaphic properties and vegetation coverage. However, the relationship between KRD control and soil bacterial communities remains unclear. 16S rRNA gene next-generation sequencing was used to investigate soil bacterial community structure, composition, diversity, and co-occurrence network from five ecological types in KRD control area. Moreover, soil physical-chemical properties and soil stoichiometry characteristics of carbon, nitrogen and phosphorus were analyzed. Soil N and P co-limitation decreased in the contribution of the promotion of KRD control on edaphic properties. T…

In Vitro Testing of Alternative Synthetic and Natural Antiparasitic Compounds against the Monogenean Sparicotyle chrysophrii

2021

© 2021 by the authors.

Decomposition of Microbial Necromass Is Divergent at the Individual Taxonomic Level in Soil

2021

The turnover of microbial biomass plays an important part in providing a significant source of carbon (C) to soil organic C. However, whether the decomposition of microbial necromass (non-living microbial biomass) in the soil varies at the individual taxa level remains largely unknown. To fill up these gaps, we compared the necromass decomposition of bacterial and archaeal taxa by separating live microbial biomass with 18O-stable isotope probing from dead microbial biomass in soil. Our results showed that most of the microbial necromass at the operational taxonomic unit level (88.51%), which mainly belong to Acidobacteria, Actinobacteria, Gemmatimonadetes, and Proteobacteria, decomposed sig…