Helfrich, Mirjam: search on Z-Library

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1

Effect of conventional and minimum tillage on physical and biochemical stabilization of soil organic matter

Anna Jacobs, Mirjam Helfrich, Susan Hanisch, Ulrich Quendt, Rolf Rauber, Bernard Ludwig

Journal:

Biology and Fertility of Soils

Year:

2010

Language:

english

File:

PDF, 392 KB

english, 2010

2

Effects of residue location on soil organic matter turnover: results from an incubation experiment with 15N-maize

Jacobs, Anna, Helfrich, Mirjam, Dyckmans, Jens, Rauber, Rolf, Ludwig, Bernard

Journal:

Journal of Plant Nutrition and Soil Science

Year:

2011

Language:

english

File:

PDF, 253 KB

english, 2011

3

Storage and stability of organic matter and fossil carbon in a Luvisol and Phaeozem with continuous maize cropping: A synthesis

Flessa, Heiner, Amelung, Wulf, Helfrich, Mirjam, Wiesenberg, Guido L. B., Gleixner, Gerd, Brodowski, Sonja, Rethemeyer, Janet, Kramer, Christiane, Grootes, Pieter M.

Journal:

Journal of Plant Nutrition and Soil Science

Year:

2008

Language:

english

File:

PDF, 282 KB

english, 2008

4

Modeling carbon dynamics in subsoils using simple models

Helfrich, Mirjam, Flessa, Heiner, Ludwig, Bernard

Journal:

Journal of Plant Nutrition and Soil Science

Year:

2010

Language:

english

File:

PDF, 138 KB

english, 2010

5

Increased microbial anabolism contributes to soil carbon sequestration by mineral fertilization in temperate grasslands

Poeplau, Christopher, Helfrich, Mirjam, Dechow, Rene, Szoboszlay, Márton, Tebbe, Christoph C., Don, Axel, Greiner, Bärbel, Zopf, Dorit, Thumm, Ulrich, Korevaar, Hein, Geerts, Rob

Journal:

Soil Biology and Biochemistry

Year:

2018

Language:

english

File:

PDF, 2.32 MB

english, 2018

6

Organic matter in density fractions of water-stable aggregates in silty soils: Effect of land use

Tamon Yamashita, Heiner Flessa, Bettina John, Mirjam Helfrich, Bernard Ludwig

Journal:

Soil Biology and Biochemistry

Year:

2006

Language:

english

File:

PDF, 266 KB

english, 2006

7

Factors controlling the variability of organic matter in the top- and subsoil of a sandy Dystric Cambisol under beech forest

Heinze, Stefanie, Ludwig, Bernard, Piepho, Hans-Peter, Mikutta, Robert, Don, Axel, Wordell-Dietrich, Patrick, Helfrich, Mirjam, Hertel, Dietrich, Leuschner, Christoph, Kirfel, Kristina, Kandeler, Elle

Journal:

Year:

2018

Language:

english

File:

PDF, 409 KB

english, 2018

8

Fate and stability of dissolved organic carbon in topsoils and subsoils under beech forests

Kalks, Fabian, Liebmann, Patrick, Wordell-Dietrich, Patrick, Guggenberger, Georg, Kalbitz, Karsten, Mikutta, Robert, Helfrich, Mirjam, Don, Axel

Journal:

Biogeochemistry

Year:

2020

File:

PDF, 1.23 MB

2020

9

Is thermal oxidation at different temperatures suitable to isolate soil organic carbon fractions with different turnover?

Helfrich, Mirjam, Flessa, Heiner, Dreves, Alexander, Ludwig, Bernard

Journal:

Journal of Plant Nutrition and Soil Science

Year:

2010

Language:

english

File:

PDF, 117 KB

english, 2010

10

Soil mineral N dynamics and N 2 O emissions following grassland renewal

Buchen, Caroline, Well, Reinhard, Helfrich, Mirjam, Fuß, Roland, Kayser, Manfred, Gensior, Andreas, Benke, Matthias, Flessa, Heinz

Journal:

Agriculture, Ecosystems & Environment

Year:

2017

Language:

english

File:

PDF, 1.58 MB

english, 2017

11

Partitioning of carbon and nitrogen during decomposition of 13 C 15 N-labeled beech and ash leaf litter

Langenbruch, Christina, Helfrich, Mirjam, Joergensen, Rainer Georg, Gordon, Jennifer, Flessa, Heinz

Journal:

Journal of Plant Nutrition and Soil Science

Year:

2014

Language:

english

File:

PDF, 232 KB

english, 2014

12

Near-infrared spectroscopy can predict the composition of organic matter in soil and litter

Terhoeven-Urselmans, Thomas, Michel, Kerstin, Helfrich, Mirjam, Flessa, Heiner, Ludwig, Bernard

Journal:

Journal of Plant Nutrition and Soil Science

Year:

2006

Language:

english

File:

PDF, 129 KB

english, 2006

13

Fluxes of N2 and N2O and contributing processes in summer after grassland renewal and grassland conversion to maize cropping on a Plaggic Anthrosol and a Histic Gleysol

Buchen, Caroline, Lewicka-Szczebak, Dominika, Fuß, Roland, Helfrich, Mirjam, Flessa, Heinz, Well, Reinhard

Journal:

Soil Biology and Biochemistry

Year:

2016

Language:

english

File:

PDF, 1.24 MB

english, 2016

14

Translocation of 13C-labeled leaf or root litter carbon of beech (Fagus sylvatica L.) and ash (Fraxinus excelsior L.) during decomposition – A laboratory incubation experiment

Steffens, Christina, Helfrich, Mirjam, Joergensen, Rainer Georg, Eissfeller, Verena, Flessa, Heinz

Journal:

Soil Biology and Biochemistry

Year:

2015

Language:

english

File:

PDF, 1.02 MB

english, 2015

15

Effect of litter quality and soil fungi on macroaggregate dynamics and associated partitioning of litter carbon and nitrogen

Mirjam Helfrich, Bernard Ludwig, Martin Potthoff, Heiner Flessa

Journal:

Soil Biology and Biochemistry

Year:

2008

Language:

english

File:

PDF, 640 KB

english, 2008

16

The role of soil fungi and bacteria in plant litter decomposition and macroaggregate formation determined using phospholipid fatty acids

Helfrich, Mirjam, Ludwig, Bernard, Thoms, Carolin, Gleixner, Gerd, Flessa, Heinz

Journal:

Applied Soil Ecology

Year:

2015

Language:

english

File:

PDF, 477 KB

english, 2015

17

Stability of pyrochar and hydrochar in agricultural soil - a new field incubation method

Gronwald, Marco, Vos, Cora, Helfrich, Mirjam, Don, Axel

Journal:

Year:

2016

Language:

english

File:

PDF, 710 KB

english, 2016

18

Effects of beech (Fagus sylvatica), ash (Fraxinus excelsior) and lime (Tiliaspec.) on soil chemical properties in a mixed deciduous forest

Christina Langenbruch, Mirjam Helfrich, Heinz Flessa

Journal:

Year:

2012

Language:

english

File:

PDF, 296 KB

english, 2012

19

Controlling factors for the stability of subsoil carbon in a Dystric Cambisol

Wordell-Dietrich, Patrick, Don, Axel, Helfrich, Mirjam

Journal:

Year:

2016

Language:

english

File:

PDF, 717 KB

english, 2016

20

Peripheral Leptin Levels in Narcoleptic Patients

Dahmen, Norbert, Engel, Alice, Helfrich, Jana, Manderscheid, Nina, Löbig, Mirjam, Forst, Thomas, Pfützner, Andreas, Tonn, Peter

Journal:

Diabetes Technology & Therapeutics

Year:

2007

Language:

english

File:

PDF, 93 KB

english, 2007

21

Effect of chemical and mechanical grassland conversion to cropland on soil mineral N dynamics and N2O emission

Helfrich, Mirjam, Nicolay, Greta, Well, Reinhard, Buchen-Tschiskale, Caroline, Dechow, RenÃ©, FuÃ, Roland, Gensior, Andreas, Paulsen, Hans Marten, Berendonk, Clara, Flessa, Heinz

Journal:

Agriculture, Ecosystems & Environment

Year:

2020

File:

PDF, 2.03 MB

2020

22

Effect of land use on the composition of soil organic matter in density and aggregate fractions as revealed by solid-state 13C NMR spectroscopy

Mirjam Helfrich, B. Ludwig, P. Buurman, H. Flessa

Journal:

Year:

2006

Language:

english

File:

PDF, 239 KB

english, 2006

23

Properties and Degradability of Hydrothermal Carbonization Products

Eibisch, Nina, Helfrich, Mirjam, Don, Axel, Mikutta, Robert, Kruse, Andrea, Ellerbrock, Ruth, Flessa, Heinz

Journal:

Journal of Environmental Quality

Year:

2013

Language:

english

File:

PDF, 515 KB

english, 2013

24

Pyrochars and hydrochars differently alter the sorption of the herbicide isoproturon in an agricultural soil

Eibisch, Nina, Schroll, Reiner, Fuß, Roland, Mikutta, Robert, Helfrich, Mirjam, Flessa, Heinz

Journal:

Year:

2015

Language:

english

File:

PDF, 761 KB

english, 2015

25

Does water repellency of pyrochars and hydrochars counter their positive effects on soil hydraulic properties?

Eibisch, Nina, Durner, Wolfgang, Bechtold, Michel, Fuß, Roland, Mikutta, Robert, Woche, Susanne K., Helfrich, Mirjam

Journal:

Year:

2015

Language:

english

File:

PDF, 722 KB

english, 2015

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