نتایج جستجو برای: soil aggregation

تعداد نتایج: 245141  

2005
H. Bormann

Introduction Conclusions References Tables Figures Back Close Papers published in Hydrology and Earth System Sciences Discussions are under open-access review for the journal Hydrology and Earth System Sciences Abstract Introduction Conclusions References Tables Figures Back Close Abstract This paper analyses the effect of spatial input data resolution on the simulated water balances and flow c...

مجید باقرنژاد, , پرویز شکاری, ,

Chenges in the soil characteristics is rather continuously. A method that takes this continuity into account would present a realistic pattern of soil distribution either in taxonomic or geographical space. The fuzzy set theory provides such an approach. In this study, the robustness of fuzzy clustering in soil pattern recognition was evaluated in a subcatchment of western Iran. The clustering ...

فؤاد تاجیک, ,

Aggregation is an important temporal property of soil structure that is affected by intrinsic soil properties and also soil use and management. Aggregate stability has a strong influence on many processes in soil such as infiltration, aeration, strength, erosion, and soil’s ability to transmit liquids, solutes, gases, and heat. In this study, undisturbed soil specimens from 0-10 and 10-20 cm de...

2011
Sarah E. Gatzke Dylan E. Beaudette Darren L. Ficklin Yuzhou Luo Anthony T. O’Geen Minghua Zhang

SSSAJ: Volume 75: Number 5 • September–October 2011 Soil Sci. Soc. Am. J. 75:1908–1921 Posted online 15 Aug. 2011 doi:10.2136/sssaj2010.0418 Received 10 Nov. 2010. *Corresponding author ([email protected]). © Soil Science Society of America, 5585 Guilford Rd., Madison WI 53711 USA All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, ele...

ژورنال: علوم آب و خاک 2014
اسمعیلی دستجردی پور, عاطفه, سرچشمه پور, مهدی, فرپور, محمد هادی,

Organic substances produced by cyanobacteria and some polymeric compounds play a role in soil aggregation and increase soil structure stability in sandy soils. Effects of biological soil crusts and some polymeric compounds on some properties of a sandy soil were investigated in this research. Inoculation of three cyanobacterial treatments (Nostoc sp., Phormidium sp. and their combination) and f...

ژورنال: علوم آب و خاک 2017

This research investigated the effects of super absorbentpolymers on root characteristics of Avena fatua under two soil textures and three irrigation regimes. The study was arranged according to a factorial experiment based on a completely randomized design with three replications. Hydrogel compositions included three types of super absorbents (Aquasorb, Boloorab A and Stockosorb) with two leve...

Journal: :محیط شناسی 0
سیدحمید فلاح میری همت الله پیردشتی میرخالق ضیاء تبار احمدی حسن قلیچ نیا

this research was carried out based on systematic analysis approach for evaluation of ecological resources capability of kasilian representative catchment for agricultural land use. the study area is located in southern of mazandaran province. in this study we used topography digital data, paper maps, climatology data, satellite images and gis, database and spreadsheet software. the process of ...

2004
KARL RITZ IAIN M YOUNG

The spatial organisation of soils is crucially important in affecting belowground function, and the associated delivery of ecosystem services. Fungi constitute an important part of the soil biomass. As well as playing key roles in nutrient cycling and biotic interactions, they are also intimately involved in soil structural dynamics. Fungi mediate the formation of soil structure at a variety of...

2015
Qing Wang Dan Wang Xuefa Wen Guirui Yu Nianpeng He Rongfu Wang

The principle of enzyme kinetics suggests that the temperature sensitivity (Q10) of soil organic matter (SOM) decomposition is inversely related to organic carbon (C) quality, i.e., the C quality-temperature (CQT) hypothesis. We tested this hypothesis by performing laboratory incubation experiments with bulk soil, macroaggregates (MA, 250-2000 μm), microaggregates (MI, 53-250 μm), and mineral f...

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