Using the SWAT Model to Assess the Impacts of Changing Irrigation From
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0 RS Proceedings of thwk .I dt"ll th6lnternat ........... held at aoligb"M I k5 [ON TNR TrRwn N LAM, V p m [i r-iMmVEENM rv-'rv 0D .......... Internatio*0 'Bern, S, ........... Development of K-Fertilizer Recommendations 22nd Colloquium of the International Potash Institute Soligorsk, USSR June 18-23, 1990 Development of K-Fertilizer Recommendations International Potash Institute, CH-3048 Worblaufen-Bern/Switzerland P.O. Box 121 Phone: (0)31/58 53 73 Telex: 912 091 ipi ch Telefax: (0)31 58 41 29 © All rights held by: International Potash Institute P.O. Box 121 CH-3048 Worblaufen-Bern/Switzerland Phone: (0)31/58 53 73 Telex: 912 091 ipi ch Telefax: (0)31/58 41 29 Design: Mario Pellegrini, Bern Printing: Lang Druck AG, Liebefeld-Bern Proceedings of the 22nd Colloquium of the International Potash Institute Contents Opening Session Page N. Cello Welcome address .................. 9 A. Podlesny Welcome address by the Director General of Byeloruskali ............ 13 Session No. 1 Potassium demand in cropping systems J Breburda Development of agricultural yield levels and soil K-status in Eastern and Western E urope .......................... 17 A. van Diest The position of K in nutrient balance sheets of the Netherlands .......... 41 M. Kerschberger and Records of soil fertility in the GDR 55 D. Richter M.A. Florinsky and Agrochemical monitoring of exchange- E.N. Yefremov able potassium in arable soils of the U SSR ........................... 63 U Kafkafi The functions of plant K in overcoming environmental stress situations ...... 81 V V. Prokoshev Coordinator's report on the 1st Working Session .......................... 95 Session No. -
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15 NOVEMBER 2006 A R O R A A N D B O E R 5875 The Temporal Variability of Soil Moisture and Surface Hydrological Quantities in a Climate Model VIVEK K. ARORA AND GEORGE J. BOER Canadian Centre for Climate Modelling and Analysis, Meteorological Service of Canada, University of Victoria, Victoria, British Columbia, Canada (Manuscript received 4 October 2005, in final form 8 February 2006) ABSTRACT The variance budget of land surface hydrological quantities is analyzed in the second Atmospheric Model Intercomparison Project (AMIP2) simulation made with the Canadian Centre for Climate Modelling and Analysis (CCCma) third-generation general circulation model (AGCM3). The land surface parameteriza- tion in this model is the comparatively sophisticated Canadian Land Surface Scheme (CLASS). Second- order statistics, namely variances and covariances, are evaluated, and simulated variances are compared with observationally based estimates. The soil moisture variance is related to second-order statistics of surface hydrological quantities. The persistence time scale of soil moisture anomalies is also evaluated. Model values of precipitation and evapotranspiration variability compare reasonably well with observa- tionally based and reanalysis estimates. Soil moisture variability is compared with that simulated by the Variable Infiltration Capacity-2 Layer (VIC-2L) hydrological model driven with observed meteorological data. An equation is developed linking the variances and covariances of precipitation, evapotranspiration, and runoff to soil moisture variance via a transfer function. The transfer function is connected to soil moisture persistence in terms of lagged autocorrelation. Soil moisture persistence time scales are shorter in the Tropics and longer at high latitudes as is consistent with the relationship between soil moisture persis- tence and the latitudinal structure of potential evaporation found in earlier studies. -
Why Do We Have So Many Different Hydrological Models?
Why do we have so many different hydrological models? A review based on the case of Switzerland Pascal Horton*1, Bettina Schaefli1, and Martina Kauzlaric1 1Institute of Geography & Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland ([email protected]) This is a preprint of a manuscript submitted to WIREs Water. 1 Abstract Hydrology plays a central role in applied as well as fundamental environmental sciences, but it is well known to suffer from an overwhelming diversity of models, in particular to simulate streamflow. Based on Switzerland's example, we discuss here in detail how such diversity did arise even at the scale of such a small country. The case study's relevance stems from the fact that Switzerland shows a relatively high density of academic and research institutes active in the field of hydrology, which led to an evolution of hydrological models that stands exemplarily for the diversification that arose at a larger scale. Our analysis summarizes the main driving forces behind this evolution, discusses drawbacks and advantages of model diversity and depicts possible future evolutions. Although convenience seems to be the main driver so far, we see potential change in the future with the advent of facilitated collaboration through open sourcing and code sharing platforms. We anticipate that this review, in particular, helps researchers from other fields to understand better why hydrologists have so many different models. 1 Introduction Hydrological models are essential tools for hydrologists, be it for operational flood forecasting, water resource management or the assessment of land use and climate change impacts. -
Hydrological Induced Earth Rotation Variations from Stand-Alone and Dynamically Coupled Simulations
HYDROLOGICAL INDUCED EARTH ROTATION VARIATIONS FROM STAND-ALONE AND DYNAMICALLY COUPLED SIMULATIONS R. DILL, M. THOMAS, C. WALTER Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences Telegrafenberg, D-14473 Potsdam e-mail: [email protected] ABSTRACT. The impact of continental water mass redistributions on Earth rotation is deduced from stand-alone runs with the Hydrological Discharge Model (HDM) forced by ERA40 re-analyses as well as by the unconstrained atmospheric climate model ECHAM5. The HDM is attached in three different approaches to the atmospheric forcing models. First, ECHAM5 and its embedded land surface model generates directly runoff and drainage appropriate for the subsequent processing with HDM, like it is re- alized in the dynamically coupled model system ECOCTH, too. Second, an intermediate Simplified Land Surface scheme (SLS) is used to separate ERA40 precipitation into runoff, drainage, and evaporation. Third, precipitation and evaporation are used as input for the Land Surface Discharge Model (LSDM), which estimates runoff and drainage internally for its HDM-like discharge scheme. The individual models are validated by observed river discharges. The induced rotational variations represent mainly the dif- ferent forcing from precipitation-evaporation and trends from inconsistent mass fluxes. The dynamical coupling of atmosphere and ocean has only a subordinated influence. 1. HYDROLOGICAL MODEL APPROACHES Water mass redistributions within the global hydrological cycle affect the Earth’s rotation and its gravity field, especially on seasonal to interannual timescales. Since Earth rotation variations and partic- ularly Length-of-Day are sensitive for deficiencies in the global water balance, consistent mass exchanges among the atmosphere, oceans and continental hydrology are mandatory for realistic simulations of hy- drospheric induced global integral Earth parameters. -
Agrology, 2(4), 205‒208 AGROLOGY Doi: 10.32819/019029
ISSN 2617-6106 (print) ISSN 2617-6114 (online) Agrology, 2(4), 205‒208 AGROLOGY doi: 10.32819/019029 Оriginal researches Spatial Organization of the Vallonia Pulchella (Muller 1774) Ecological Niche in Sod-lithogenic Soils on Loesses-Like Clays in the Nikopol Manganese Ore Basin Received: 04 September 2019 A. K. Umerova Revised: 09 September 2019 Bohdan Khmelnytskyi Melitopol State Pedagogical University, Melitopol, Ukraine Accepted: 10 September 2019 Bohdan Khmelnytskyi Melitopol State Abstract. The influence of edaphic and phytoindication parameters on the spatial organiza- Pedagogical University, Hetmanska Str., 20, tion of the micromollusc Vallonia pulchella (Muller 1774) ecological niche was experimentally Melitopol, 72312, Ukraine investigated. The field experiment was conducted in June 2015 at the research polygon within the Nikopol Manganese ore basin (sod-lithogenic soils on loam loesses-like clays). A promi- Tel.: +38-096-057-17-84 sing area of research is the issue: what exactly edaphic factor and phytoindication parameters E-mail: [email protected] is the most important determinants of micromolluscs distribution. The experimental polygon was consisted of 105 samples located within 7 transect (15 samples each). The Vallonia pul- Cite this article: Umerova, A. K. (2019). chella average density was 2.54 ind./sample. The average penetration resistance of the soil was Spatial organization of the Vallonia pulchella found as a result of the experiment studies to increase with depth down the profile. The analy- (Muller 1774) ecological niche sis of aggregate fractions showed that the number of molluscs is unstable and varies in the in sod-lithogenic soils on loesses-like clays in the Nikopol Manganese Ore Basin. -
Agrology Practice Standards • Assessment, Remediation and Management of Contaminated Land • Land Reclamation
Agrology Practice Standards • Assessment, Remediation and Management of Contaminated Land • Land Reclamation Les Fuller Ph.D, P.Ag Director, Member Competence March 2019 The Profession of Agrology Section 1(1v) of the Agrology Profession Act (APA 2005) defines the practice of agrology as, • the development, acquisition or application of or advising on scientific principles and practices relating to the cultivation, production, utilization and improvement of plants and animals and the management of associated resources and includes…” • The analysis, classification and evaluation of land and water systems, • The conservation, decommissioning, reclamation, remediation and improvement of soils, land and water systems, • Etc, etc. AIA: Regulating the Profession of Agrology The Alberta Institute of Agrologists is a Professional Regulatory Organization (PRO). Difference between a PRO and an Association/Society: • PRO: Created by government via legislation to protect public interest. • Association/Society: Created by members to further member interests. • Example: • College of Physicians and Surgeons is a PRO (regulatory mandate; focus on public interest); • Alberta Medical Association is an association (focus on member’s interests); The Agrology Profession Act (APA; 2005) and the Agrology Profession Regulation (APR; 2007) established AIA as a PRO; no part of the APA or APR allows for association activities. Professional regulatory management is based on the premise that the best persons to regulate a profession are practitioners within that profession who understand what it means to be competent in that profession. Seven Pillars of Professional Regulation • Entrance Standards • Continuing Competence Program • Code of Ethics • Practice Standards • Practice Reviews • Errors and Omissions Insurance • Complaints Handling Protocol Agrology Profession Act The Institute’s role is defined in Section 3 of the Agrology Profession Act. -
Hydrological Controls on Salinity Exposure and the Effects on Plants in Lowland Polders
Hydrological controls on salinity exposure and the effects on plants in lowland polders Sija F. Stofberg Thesis committee Promotors Prof. Dr S.E.A.T.M. van der Zee Personal chair Ecohydrology Wageningen University & Research Prof. Dr J.P.M. Witte Extraordinary Professor, Faculty of Earth and Life Sciences, Department of Ecological Science VU Amsterdam and Principal Scientist at KWR Nieuwegein Other members Prof. Dr A.H. Weerts, Wageningen University & Research Dr G. van Wirdum Dr K.T. Rebel, Utrecht University Dr R.P. Bartholomeus, KWR Water, Nieuwegein This research was conducted under the auspices of the Research School for Socio- Economic and Natural Sciences of the Environment (SENSE) Hydrological controls on salinity exposure and the effects on plants in lowland polders Sija F. Stofberg Thesis submitted in fulfilment of the requirements for the degree of doctor at Wageningen University by the authority of the Rector Magnificus Prof. Dr A.P.J. Mol in the presence of the Thesis Committee appointed by the Academic Board to be defended in public on Wednesday 07 June 2017 at 4 p.m. in the Aula. Sija F. Stofberg Hydrological controls on salinity exposure and the effects on plants in lowland polders, 172 pages. PhD thesis, Wageningen University, Wageningen, the Netherlands (2017) With references, with summary in English ISBN: 978-94-6343-187-3 DOI: 10.18174/413397 Table of contents Chapter 1 General introduction .......................................................................................... 7 Chapter 2 Fresh water lens persistence and root zone salinization hazard under temperate climate ............................................................................................ 17 Chapter 3 Effects of root mat buoyancy and heterogeneity on floating fen hydrology .. -
A Case Study Carried out in the Ashan Drainage Basin, Iran)
European Journal of Environmental Sciences 99 ASSESSMENT OF SOIL EROSION ON HILLSLOPES (A CASE STUDY CARRIED OUT IN THE ASHAN DRAINAGE BASIN, IRAN) H. SADOUGH VANINI* and MOSTAFA AMINI Department of Physical Geography, Faculty of Earth Sciences, Shahid Beheshti University, Tehran, Iran * Corresponding author: [email protected] ABSTRACT The objective of this study is to determine the rate of soil erosion on slopes of differing steepness and its effects on agricultural land and pastures in the drainage basin around Ashan. Exogenous factors like water and wind and endogenous elements such as erodibility of the soil have key roles in erosion and the results of this study will help in the management of soil and soil conservation programs. Soil erosion in the drainage basin around Ashan has accelerated and because of this it is important to determine the erodibility of the soil. In this study, the soil on four different hill slopes was sampled and after drying, soil size distribution and soil texture and the organic content of forty samples, and the k-factor (erodibility) using the USLE equation, were determined. According to the results of the ANOVA test there are strong relationships between the variables, which is illustrated by box plots. The results indicate that erodibility is significantly (p < 0.05) associated with the type of land use and landforms. The highest levels of erosion were recorded on the back-slope and the least at the summit and on the toe-slope. Discriminant function analysis was used to determine the discriminatory power of the erodibility factor associated with the different uses of land and landform components. -
A Study on Water and Salt Transport, and Balance Analysis in Sand Dune–Wasteland–Lake Systems of Hetao Oases, Upper Reaches of the Yellow River Basin
water Article A Study on Water and Salt Transport, and Balance Analysis in Sand Dune–Wasteland–Lake Systems of Hetao Oases, Upper Reaches of the Yellow River Basin Guoshuai Wang 1,2, Haibin Shi 1,2,*, Xianyue Li 1,2, Jianwen Yan 1,2, Qingfeng Miao 1,2, Zhen Li 1,2 and Takeo Akae 3 1 College of Water Conservancy and Civil Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; [email protected] (G.W.); [email protected] (X.L.); [email protected] (J.Y.); [email protected] (Q.M.); [email protected] (Z.L.) 2 High Efficiency Water-saving Technology and Equipment and Soil Water Environment Engineering Research Center of Inner Mongolia Autonomous Region, Hohhot 010018, China 3 Faculty of Environmental Science and Technology, Okayama University, Okayama 700-8530, Japan; [email protected] * Correspondence: [email protected]; Tel.: +86-13500613853 or +86-04714300177 Received: 1 November 2020; Accepted: 4 December 2020; Published: 9 December 2020 Abstract: Desert oases are important parts of maintaining ecohydrology. However, irrigation water diverted from the Yellow River carries a large amount of salt into the desert oases in the Hetao plain. It is of the utmost importance to determine the characteristics of water and salt transport. Research was carried out in the Hetao plain of Inner Mongolia. Three methods, i.e., water-table fluctuation (WTF), soil hydrodynamics, and solute dynamics, were combined to build a water and salt balance model to reveal the relationship of water and salt transport in sand dune–wasteland–lake systems. Results showed that groundwater level had a typical seasonal-fluctuation pattern, and the groundwater transport direction in the sand dune–wasteland–lake system changed during different periods. -
Cowichan Bay Official Community Plan Bylaw No
Cowichan Valley Regional District Electoral Area D – Cowichan Bay Official Community Plan No. 3605 ____________________________________________________________________________ Cowichan Valley Regional District Electoral Area D – Cowichan Bay Official Community Plan Bylaw No. 3605 Amended up to and including Bylaw No. 4383 CONSOLIDATED FOR CONVENIENCE ONLY Please check with the Land Use Services Department (250.746.2620) for current information on this Bylaw _____________________________________________________________________ NOTE: CVRD Land Use Services Department staff have made every effort to provide the most up-to-date version of this consolidated bylaw and the associated maps. Nevertheless, this document may be somewhat out of date, particularly if there are amendments underway. Persons using this consolidated bylaw text and the maps should not rely on them for legal purposes or to make important decisions. AMENDING BYLAWS: 4271 4831 Trans Canada Highway (Map Amendment Only) – June 26, 2019 4383 1500 Cowichan Bay Road/PID: 005-490-227 (Text Amendment Only – July 28, 2021 Table of Contents Part 1 – Policy Framework ................................................................................................................... 1 1.0 Plan Foundations...................................................................................................................... 1 1.1 Introduction .............................................................................................................................................. 1 1.2 -
DE LA SCIENCE DES SOLS Anglais - Frangais Franiais - Anglais
GLOSSAIRE DE LA SCIENCE DES SOLS Anglais - Frangais Franiais - Anglais Compild par CARL E. FERGUSON Ph. D. Conseiller en Pddologie de I'A.I.D. Publidt par REGIONAL TECHNICAL AIDS CENTER American Embassy - Paris-France qui relive du DEPARTMENT OF STATE Agency for International Development Washington D.C. -- m . ILo INTRODUCTION TM.7,JE DES MATIERES L'auteur a pr~par6 le present glossaire durant une p6riode de deux ans, au cours de laquelle il a servi en qualit de conseiller p~dologue de i'Agency for International Development (AID) L Rabat, Maroc. INTRODUCTION .............................. 3 L'auteurLe glossaire, bien qu'assez iiche, n'est pas exhaustif. s'est efforc6 de choisir le ou les termes GLOSSAIRE ANGLAIS-FRANAIS ................ 5 6quivalents les plus couramment empl.cy~s et acceptes GLOSSAIRE FRANAIS-ANCLAIS ................ 81 par ies p~dologues et les sp~cialistes de la science du sol. Certains termes 61mentaires y ont 6t6 incorpor6s LISTE DE 200 VERBES ANGLAIS FRAQUEMMENT A l'iniention des 6tudiants peu vers6s dans l'une des EMPLOYtS EN P&DOLOGIE ...................... 157 deux Jangues. LISTE DE 200 Vf.PBES FRAN9AIS FROQUEMMENT L'auteur tient A remercier les personnalit6s ci-apr~s EMPLOYfS EN P DOLOGM ....................... 165 des suggestions et observations formuler au cours de qu'elles ont bien voulu BIBLIOGRAPHIE ]a preparation du glossaire : .............................. 173 M. Georges Bryssine, Chef de Ia Station d'eclogie, Service des recherches agronomiques, Ministare de 'Agriculture; M. J. Wilber , p~dologue et M. Claude Michel, agronome du mame service ; et M. Paul Avril, Conseiller p~dologue de la FAO au Maroc. L'auteur exprime 6galement sa gratitude au Service de traduction de !a Mission de I'AID ARabat, qui a bien voulu reviser le manuscrit et formiler des suggestions utiles concer nant la disposition du xat~riel. -
Modelling Groundwater Recharge
Groundwater recharge in Slovenia Energie & Umwelt Energie Results of a bilateral German-Slovenian Research project Energy & Environment Energy Mišo Andjelov, Zlatko Mikulič, Björn Tetzlaff, Jože Uhan & Frank Wendland 339 Groundwater recharge in Slovenia recharge Groundwater Member of the Helmholtz Association Member of the M. Andjelov, Z. Mikulič, B. Tetzlaff, J. Uhan & F. Wendland F. J. Uhan & B. Tetzlaff, Z. Mikulič, M. Andjelov, Energie & Umwelt / Energie & Umwelt / Energy & Environment Energy & Environment Band/ Volume 339 Band/ Volume 339 ISBN 978-3-95806-177-4 ISBN 978-3-95806-177-4 Schriften des Forschungszentrums Jülich Reihe Energie & Umwelt / Energy & Environment Band / Volume 339 Forschungszentrum Jülich GmbH Institute of Bio- and Geosciences Agrosphere (IBG-3) Groundwater recharge in Slovenia Results of a bilateral German-Slovenian Research project Mišo Andjelov, Zlatko Mikulič, Björn Tetzlaff, Jože Uhan & Frank Wendland Schriften des Forschungszentrums Jülich Reihe Energie & Umwelt / Energy & Environment Band / Volume 339 ISSN 1866-1793 ISBN 978-3-95806-177-4 Bibliographic information published by the Deutsche Nationalbibliothek. The Deutsche Nationalbibliothek lists this publication in the Deutsche Nationalbibliografie; detailed bibliographic data are available in the Internet at http://dnb.d-nb.de. Publisher and Forschungszentrum Jülich GmbH Distributor: Zentralbibliothek 52425 Jülich Tel: +49 2461 61-5368 Fax: +49 2461 61-6103 Email: [email protected] www.fz-juelich.de/zb Cover Design: Grafische Medien, Forschungszentrum Jülich GmbH Printer: Grafische Medien, Forschungszentrum Jülich GmbH Copyright: Forschungszentrum Jülich 2016 Schriften des Forschungszentrums Jülich Reihe Energie & Umwelt / Energy & Environment, Band / Volume 339 ISSN 1866-1793 ISBN 978-3-95806-177-4 The complete volume is freely available on the Internet on the Jülicher Open Access Server (JuSER) at www.fz-juelich.de/zb/openaccess.