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https://www.readbyqxmd.com/read/29791526/geomorphology-based-unit-hydrograph-models-for-flood-risk-management-case-study-in-brazilian-watersheds-with-contrasting-physiographic-characteristics
#1
Samuel Beskow, Gabriela S Nunes, Carlos R DE Mello, Tamara L Caldeira, Lloyd D Norton, Alice A Steinmetz, Marcelle M Vargas, Léo F Ávila
Heavy rainfall in conjunction with an increase in population and intensification of agricultural activities have resulted in countless problems related to flooding in watersheds. Among the techniques available for direct surface runoff (DSR) modeling and flood risk management are the Unit Hydrograph (UH) and Instantaneous Unit Hydrograph (IUH). This study focuses on the evaluation of predictive capability of two conceptual IUH models (Nash and Clark), considering their original (NIUH and CIUH) and geomorphological approaches (NIUHGEO and CIUHGEO), and their advantages over two traditional synthetics UH models - Triangular (TUH) and Dimensionless (DUH), to estimate DSR hydrographs taking as reference two Brazilian watersheds with contrasting geomorphological and climatic characteristics...
May 21, 2018: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/29780584/opening-the-black-box-of-spring-water-microbiology-from-alpine-karst-aquifers-to-support-proactive-drinking-water-resource-management
#2
REVIEW
Domenico Savio, Philipp Stadler, Georg H Reischer, Alexander K T Kirschner, Katalin Demeter, Rita Linke, Alfred P Blaschke, Regina Sommer, Ulrich Szewzyk, Inés C Wilhartitz, Robert L Mach, Hermann Stadler, Andreas H Farnleitner
Over the past 15 years, pioneering interdisciplinary research has been performed on the microbiology of hydrogeologically well-defined alpine karst springs located in the Northern Calcareous Alps (NCA) of Austria. This article gives an overview on these activities and links them to other relevant research. Results from the NCA springs and comparable sites revealed that spring water harbors abundant natural microbial communities even in aquifers with high water residence times and the absence of immediate surface influence...
May 2018: WIREs. Water
https://www.readbyqxmd.com/read/29780371/comparative-metatranscriptomics-of-wheat-rhizosphere-microbiomes-in-disease-suppressive-and-non-suppressive-soils-for-rhizoctonia-solani-ag8
#3
Helen L Hayden, Keith W Savin, Jenny Wadeson, Vadakattu V S R Gupta, Pauline M Mele
The soilborne fungus Rhizoctonia solani anastomosis group (AG) 8 is a major pathogen of grain crops resulting in substantial production losses. In the absence of resistant cultivars of wheat or barley, a sustainable and enduring method for disease control may lie in the enhancement of biological disease suppression. Evidence of effective biological control of R. solani AG8 through disease suppression has been well documented at our study site in Avon, South Australia. A comparative metatranscriptomic approach was applied to assess the taxonomic and functional characteristics of the rhizosphere microbiome of wheat plants grown in adjacent fields which are suppressive and non-suppressive to the plant pathogen R...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29780366/biological-control-of-mango-dieback-disease-caused-by-lasiodiplodia-theobromae-using-streptomycete-and-non-streptomycete-actinobacteria-in-the-united-arab-emirates
#4
Fatima H Kamil, Esam E Saeed, Khaled A El-Tarabily, Synan F AbuQamar
Dieback caused by the fungus Lasiodiplodia theobromae is an important disease on mango plantations in the United Arab Emirates (UAE). In this study, 53 actinobacterial isolates were obtained from mango rhizosphere soil in the UAE, of which 35 (66%) were classified as streptomycetes (SA) and 18 (34%) as non-streptomycetes (NSA). Among these isolates, 19 (12 SA and 7 NSA) showed antagonistic activities against L. theobromae associated with either the production of diffusible antifungal metabolites, extracellular cell-wall-degrading enzymes (CWDEs), or both...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29780173/land-use-in-mountain-grasslands-alters-drought-response-and-recovery-of-carbon-allocation-and-plant-microbial-interactions
#5
Stefan Karlowsky, Angela Augusti, Johannes Ingrisch, Roland Hasibeder, Markus Lange, Sandra Lavorel, Michael Bahn, Gerd Gleixner
Mountain grasslands have recently been exposed to substantial changes in land use and climate and in the near future will likely face an increased frequency of extreme droughts. To date, how the drought responses of carbon (C) allocation, a key process in the C cycle, are affected by land-use changes in mountain grassland is not known.We performed an experimental summer drought on an abandoned grassland and a traditionally managed hay meadow and traced the fate of recent assimilates through the plant-soil continuum...
May 2018: Journal of Ecology
https://www.readbyqxmd.com/read/29778955/controlled-release-urea-reduced-nitrogen-leaching-and-improved-nitrogen-use-efficiency-and-yield-of-direct-seeded-rice
#6
Shugang Zhang, Tianlin Shen, Yuechao Yang, Yuncong C Li, Yongshan Wan, Min Zhang, Yafu Tang, Samuel C Allen
The use of controlled-release urea (CRU) has become one of best management practices for increasing crop yield and improving nitrogen (N) use efficiency (NUE). However, the effects of CRU on direct-seeded rice are not well understood while direct-seeding has gradually replaced transplanting due to increasing labor cost and lack of irrigation water. The objective of this two-year field experiment was to compare the effects of the CRU at four rates (120, 180, 240 and 360 kg N ha-1 , CRU1, CRU2, CRU3 and CRU4, respectively) with a conventional urea fertilizer (360 kg N ha-1 ; U) and a control (no N fertilizer applied; CK) on yield, biomass, NUE of direct-seeded rice and soil nutrients...
May 17, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29778168/development-of-a-novel-myconanomining-approach-for-the-recovery-of-agriculturally-important-elements-from-jarosite-waste
#7
Ankita Bedi, Braj Raj Singh, Sunil K Deshmukh, Nisha Aggarwal, Colin J Barrow, Alok Adholeya
In this study, an ecofriendly and economically viable waste management approach have been attempted towards the biosynthesis of agriculturally important nanoparticles from jarosite waste. Aspergillus terreus strain J4 isolated from jarosite (waste from Debari Zinc Smelter, Udaipur, India), showed good leaching efficiency along with nanoparticles (NPs) formation under ambient conditions. Fourier-transform infrared spectroscopy (FT-IR) and transmission electron microscopy (TEM) confirmed the formation of NPs...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29777998/an-integrated-modeling-approach-for-estimating-hydrologic-responses-to-future-urbanization-and-climate-changes-in-a-mixed-use-midwestern-watershed
#8
Michael G Sunde, Hong S He, Jason A Hubbart, Michael A Urban
Future urban development and climatic changes are likely to affect hydrologic regimes in many watersheds. Quantifying potential water regime changes caused by these stressors is therefore crucial for enabling decision makers to develop viable environmental management strategies. This study presents an approach that integrates mid-21st century impervious surface growth estimates derived from the Imperviousness Change Analysis Tool with downscaled climate model projections and a hydrologic model Soil and Water Assessment Tool to characterize potential water regime changes in a mixed-use watershed in central Missouri, USA...
May 16, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29775821/vermiremediation-of-metal-loid-s-via-eichornia-crassipes-phytomass-extraction-a-sustainable-technique-for-plant-amelioration
#9
Arnab Majumdar, Anil Barla, Munish Kumar Upadhyay, Dibyarpita Ghosh, Punarbasu Chaudhuri, Sudhakar Srivastava, Sutapa Bose
Eichhornia crassipes (water hyacinth), imparts deficiency of soluble arsenic and other toxic metal (loid)s through rhizofiltration and phytoaccumulation. Without proper management strategy, this phytoremediation of metal (loid)s might fail and get reverted back to the environment, contaminating the nearby water bodies. This study, focused on bio-conversion of phytoremediating hyacinths, spiked with 100 times and greater arsenic, lead and cadmium concentrations than the average water contamination, ranging in 58...
May 15, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29773861/uncoupling-human-and-climate-drivers-of-late-holocene-vegetation-change-in-southern-brazil
#10
Mark Robinson, Jonas Gregorio De Souza, S Yoshi Maezumi, Macarena Cárdenas, Luiz Pessenda, Keith Prufer, Rafael Corteletti, Deisi Scunderlick, Francis Edward Mayle, Paulo De Blasis, José Iriarte
In the highlands of southern Brazil an anthropogenitcally driven expansion of forest occurred at the expense of grasslands between 1410 and 900 cal BP, coincident with a period of demographic and cultural change in the region. Previous studies have debated the relative contributions of increasing wetter and warmer climate conditions and human landscape modifications to forest expansion, but generally lacked high resoltiuon proxies to measure these effects, or have relied on single proxies to reconstruct both climate and vegetation...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773481/comparison-of-thermophilic-anaerobic-and-aerobic-treatment-processes-for-stabilization-of-green-and-food-wastes-and-production-of-soil-amendments
#11
Jesus D Fernandez-Bayo, Ramin Yazdani, Christopher W Simmons, Jean S VanderGheynst
The management of organic wastes is an environmental and social priority. Aerobic digestion (AED) or composting and anaerobic digestion (AD) are two organic waste management practices that produce a value-added final product. Few side-by-side comparisons of both technologies and their digestate products have been performed. The objective of this study was to compare the impact of initial feedstock properties (moisture content and/or C/N ratio) on stabilization rate by AED and AD and soil amendment characteristics of the final products...
May 14, 2018: Waste Management
https://www.readbyqxmd.com/read/29773234/corrigendum-to-soil-organic-carbon-pool-s-contribution-to-climate-change-mitigation-on-marginal-land-of-a-mediterranean-montane-area-in-italy-j-environ-manag-218-2018-593-601
#12
Chiti Tommaso, Blasi Emanuele, Pellis Guido, Perugini Lucia, Chiriacò Maria Vincenza, Valentini Riccardo
No abstract text is available yet for this article.
May 14, 2018: Journal of Environmental Management
https://www.readbyqxmd.com/read/29772019/the-effect-of-abandonment-on-vegetation-composition-and-soil-properties-in-molinion-meadows-sw-poland
#13
Grzegorz Swacha, Zoltán Botta-Dukát, Zygmunt Kącki, Daniel Pruchniewicz, Ludwik Żołnierz
Intermittently wet meadows of the Molinion alliance, as with many other grasslands of high-nature value, have become increasingly exposed to abandonment due to their low economic value. The potential consequences of land abandonment are the decrease in species diversity and environmental alterations. The issue of land-use induced changes in plant species composition and soil physico-chemical parameters have been rarely studied in species-rich intermittently wet grasslands. In this study we attempt to i) to identify determinants of plant species composition patterns and ii) to investigate the effect of cessation of mowing on vegetation composition and soil properties...
2018: PloS One
https://www.readbyqxmd.com/read/29770670/-final-evaluation-of-control-program-of-key-parasitic-diseases-in-jinhu-county-2006-2015-jiangsu-province
#14
Sun Dao-Kuan, Zhang Cui-Ping
OBJECTIVE: To evaluate the implementation of the Control Program of Key Parasitic Diseases in Jinhu County from 2006 to 2015, so as to provide the evidence for the future work of prevention and control. METHODS: The historical data about key parasitoses were collected, and the organization management, financial support, capacity building, control effects, and so on were evaluated with the descriptive method. RESULTS: From 2006 to 2015, totally 19 technique educations were conducted, 844...
January 9, 2018: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
https://www.readbyqxmd.com/read/29768137/organic-amendments-beneficial-microbes-and-soil-microbiota-toward-a-unified-framework-for-disease-suppression
#15
Giuliano Bonanomi, Matteo Lorito, Francesco Vinale, Sheridan L Woo
Organic amendments (OAs) and soilborne biocontrol agents or beneficial microbes (BMs) have been extensively studied and applied worldwide in most agriculturally important plant species. However, poor integration of research and technical approaches has limited the development of effective disease management practices based on the combination of these two bio-based strategies. Insights into the importance of the plant-associated microbiome for crop productivity, which can be modified or modulated by introducing OAs and/or BMs, are providing novel opportunities to achieve the goal of long-term disease control...
May 16, 2018: Annual Review of Phytopathology
https://www.readbyqxmd.com/read/29765381/sequence-of-changes-in-maize-responding-to-soil-water-deficit-and-related-critical-thresholds
#16
Xueyan Ma, Qijin He, Guangsheng Zhou
The sequence of changes in crop responding to soil water deficit and related critical thresholds are essential for better drought damage classification and drought monitoring indicators. This study was aimed to investigate the critical thresholds of maize growth and physiological characteristics responding to changing soil water and to reveal the sequence of changes in maize responding to soil water deficit both in seedling and jointing stages based on 2-year's maize field experiment responding to six initial soil water statuses conducted in 2013 and 2014...
2018: Frontiers in Plant Science
https://www.readbyqxmd.com/read/29764666/relevance-of-wild-and-managed-bees-for-human-well-being
#17
REVIEW
Alexandra-Maria Klein, Virginie Boreux, Felix Fornoff, Anne-Christine Mupepele, Gesine Pufal
Wild and managed bees provide pollination services to both crops and wild plants, and a variety of other services from which humans benefit. We summarize the most important and recent findings on bees as providers of provisioning, regulating and cultural ecosystem services. With comprehensive literature searches, we first identified ten important bee species for global pollination of crops, which include wild and managed honey bees, bumble bees, orchard-, cucumber- and longhorn bees. We second summarized bee-dependent ecosystem services to show how bees substantially contribute to food security, medical resources, soil formation or spiritual practices, highlighting their wide range of benefits for human well-being and to identify future research needs...
April 2018: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/29763872/effect-of-compost-application-on-the-dynamics-of-carbon-in-a-nectarine-orchard-ecosystem
#18
E Baldi, L Cavani, A Margon, M Quartieri, G Sorrenti, C Marzadori, M Toselli
The aim of the present study was to compare the quantity and the type of carbon (C) stored during the 14-year lifetime of a commercial nectarine orchard ecosystem fertilized with mineral or organic fertilizers. The study was carried out in the Po valley, Italy, in a nectarine orchard of the variety Stark RedGold, grafted on GF677 hybrid peach × almond. Since orchard planting in August 2001, the following treatments were applied in a randomized complete block design with four replicates per block and compared: 1...
May 12, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29762773/animal-and-management-based-welfare-indicators-for-a-conventional-broiler-strain-in-2-barn-types-louisiana-barn-and-closed-barn
#19
Helen Louton, Shana Bergmann, Sven Reese, Michael Erhard, Josef Bachmeier, Beatrice Rösler, Elke Rauch
The aim of this observational study was to describe health- and management-related welfare indicators for a conventional broiler strain housed in 2 barn types (Louisiana barn and closed barn) on the same farm and to assess the impact of age and housing conditions on these indicators. Broilers were examined 4 times in each of 7 fattening periods. Their weight gain, gait score, and further animal-based indicators did not differ between the barn types. On average 46% showed no sign, 51% a minor but visible, and 3% a profound lameness at the end of the fattening period (fattening day 39)...
May 11, 2018: Poultry Science
https://www.readbyqxmd.com/read/29762552/the-electronic-rothamsted-archive-e-ra-an-online-resource-for-data-from-the-rothamsted-long-term-experiments
#20
Sarah A M Perryman, Nathalie I D Castells-Brooke, Margaret J Glendining, Keith W T Goulding, Malcolm J Hawkesford, Andy J Macdonald, Richard J Ostler, Paul R Poulton, Christopher J Rawlings, Tony Scott, Paul J Verrier
The electronic Rothamsted Archive, e-RA (www.era.rothamsted.ac.uk) provides a permanent managed database to both securely store and disseminate data from Rothamsted Research's long-term field experiments (since 1843) and meteorological stations (since 1853). Both historical and contemporary data are made available via this online database which provides the scientific community with access to a unique continuous record of agricultural experiments and weather measured since the mid-19th century. Qualitative information, such as treatment and management practices, plans and soil information, accompanies the data and are made available on the e-RA website...
May 15, 2018: Scientific Data
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