Research Articles (Journals)
- Klein-Raufhake, T, Hölzel, N, Schaper, JJ, Hortmann, A, Elmer, M, Fornfeist, M, Linnemann, B, Meyer, M, Rentemeister, K, Santora, L, Wöllecke, J, and Hamer, U. . “Severity of topsoil compaction controls the impact of skid trails on soil ecological processes.” Journal of Applied Ecology, № 00: 1–12. doi: 10.1111/1365-2664.14708.
- Zhang, F, Wang, Q, Zhang, Y, Yao, S, Wang, Q, Ndzana, G, Hamer, U, Kuzyakov, Y, Zhang, B, and ,. . “Soil organic carbon increase via microbial assimilation or soil protection against the priming effect is mediated by the availability of soil N relative to input C.” Geoderma, № 444 116861. doi: 10.1016/j.geoderma.2024.116861.
- Freitag, M, Hölzel, N, Neuenkamp, L, Plas, F, Manning, P, Abrahão, A, Bergmann, J, Boeddinghaus, R, Bolliger, R, Hamer, U, Kandeler, E, Kleinebecker, T, Knorr, K-H, Marhan, S, Neyret, M, Prati, D, Le Provost, G, Saiz, H, Kleunen, M, Schäfer, D, and Klaus, VH. . “Increasing plant species richness by seeding has marginal effects on ecosystem functioning in agricultural grasslands.” Journal of Ecology, № early view (n/a) doi: 10.1111/1365-2745.14154.
- Middelanis, Thomas, Pohl, Chiara Marie, Looschelders, Dana, and Hamer, Ute. . “New directions for the Tea Bag Index: Alternative teabags and concepts can advance citizen science.” Ecological Research, № 38 (5) doi: 10.1111/1440-1703.12409.
- Georges, Martial N, Yao, S, Hamer, U, Zhang, Y, Zhang, B, and ,. . “Positive and negative priming effects induced by freshly added mineral-associated oxalic acid in a Mollisol.” Rhizosphere, № 26 100708. doi: 10.1016/j.rhisph.2023.100708.
- Muskus, AM, Miltner, A, Hamer, U, and Nowak, KM. . “Microbial community composition and glyphosate degraders of two soils under the influence of temperature, total organic carbon and pH.” Environmental Pollution, № 297: 118790. doi: 10.1016/j.envpol.2022.118790.
- Meyer U.N., Tischer A., Freitag M., Klaus V.H., Kleinebecker T., Oelmann Y., Kandeler E., Hölzel N., Hamer U.,. . “Enzyme kinetics inform about mechanistic changes in tea litter decomposition across gradients in land-use intensity in Central German grasslands.” Science of the Total Environment, № 836 155748. doi: 10.1016/j.scitotenv.2022.155748.
- Abrahão A.; Marhan S.; Boeddinghaus R.S.; Nawaz A.; Wubet T.; Hölzel N.; Klaus V.H.; Kleinebecker T.; Freitag M.; Hamer U.; Oliveira R.S.;Lambers H.; Kandeler E.;. . “Microbial drivers of plant richness and productivity in a grassland restoration experiment along a gradient of land-use intensity.” New Phytologist, № 236 (5): 1936–1950. doi: 10.1111/nph.18503.
- Ndzana, G, Zhang, Y, Yao, S, Hamer, U, and Zhang, B. . “The adsorption capacity of root exudate organic carbon onto clay mineral surface changes depending on clay mineral types and organic carbon composition.” Rhizosphere, № 23 doi: 10.1016/j.rhisph.2022.100545.
- Hamer, U, Meyer, MUT, Meyer, U, Radermacher, A, Götze, P, Koch, H, and Scherber, C. . “Soil microbial biomass and enzyme kinetics for the assessment of temporal diversification in agroecosystems.” Basic and Applied Ecology, № 53: 143–153.
- T, Kwon, H, Shibata, S, Kepfer-Rojas, IK, Schmidt, KS, Larsen, C, Beier, B, Berg, K, Verheyen, J, Lamarque, F, Hagedorn, N, Eisenhauer, I, Djukic, TN, T, Kwon, H, Shibata, S, Kepfer-Rojas, IK, Schmidt, KS, Larsen, C, Beier, B, Berg, K, Verheyen, JF, Lamarque, F, Hagedorn, N, Eisenhauer, I, Djukic, A, Caliman, A, Paquette, A, Gutiérrez-Girón, A, Petraglia, A, Augustaitis, A, Saillard, AC, Ruiz-Fernández, AI, Sousa, AI, Lillebø, AdR, Gripp, A, Lamprecht, A, Bohner, A, Francez, A, Malyshev, A, Andrić, A, Stanisci, A, Zolles, A, Avila, A, Virkkala, A, Probst, A, Ouin, AA, Khuroo, A, Verstraeten, A, Stefanski, A, Gaxiola, B, Muys, B, Gozalo, B, Ahrends, B, Yang, B, Erschbamer, CER, Ortíz, CT, Christiansen, C, Meredieu, C, Mony, C, Nock, C, Wang, C, Baum, C, Rixen, C, Delire, C, Piscart, C, Andrews, C, Rebmann, C, Branquinho, D, Jan, D, Wundram, D, Vujanović, EC, Adair, E, Ordóñez-Regil, ER, Crawford, EF, Tropina, E, Hornung, E, Groner, E, Lucot, E, Gacia, E, Lévesque, E, Benedito, EA, Davydov, FP, Bolzan, FT, Maestre, F, Maunoury-Danger, F, Kitz, F, Hofhansl, F, Sutter, FdA, Lobo, FL, Souza, F, Zehetner, FK, Koffi, G, Wohlfahrt, G, Certini, GD, Pinha, G, González, G, Canut, H, Pauli, HA, Bahamonde, H, Feldhaar, H, Jäger, HC, Serrano, H, Verheyden, H, Bruelheide, H, Meesenburg, H, Jungkunst, H, Jactel, H, Kurokawa, I, Yesilonis, I, Melece, Iv, Halder, IG, Quirós, I, Fekete, I, Ostonen, J, Borovská, J, Roales, JH, Shoqeir, J, Lata, J, Probst, J, Vijayanathan, J, Dolezal, J, Sanchez-Cabeza, J, Merlet, J, Loehr, Jv, Oppen, J, Löffler, JLB, Alonso, J, Cardoso-Mohedano, J, Peñuelas, JC, Morina, JD, Quinde, JJ, Jiménez, JM, Alatalo, J, Seeber, J, Kemppinen, J, Stadler, K, Kriiska, KVd, Meersche, K, Fukuzawa, K, Szlavecz, K, Juhos, K, Gerhátová, K, Lajtha, K, Jennings, K, Tielbörger, K, Hoshizaki, K, Green, K, Steinbauer, L, Pazianoto, L, Dienstbach, L, Yahdjian, LJ, Williams, L, Brigham, L, Hanna, Lvd, Brink, L, Rustad, L, Morillas, LS, Carneiro, LD, Martino, L, Villar, LAF, Tavares, M, Morley, M, Winkler, M, Lebouvier, M, Tomaselli, M, Schaub, M, Glushkova, MGA, Torres, Md, Graaff, M, Pons, M, Bauters, M, Mazón, M, Frenzel, M, Wagner, M, Didion, M, Hamid, M, Lopes, M, Apple, M, Weih, M, Mojses, M, Gualmini, M, Vadeboncoeur, M, Bierbaumer, M, Danger, M, Scherer-Lorenzen, M, Růžek, M, Isabellon, MD, Musciano, M, Carbognani, M, Zhiyanski, M, Puşcaş, M, Barna, M, Ataka, M, Luoto, MH, Alsafaran, N, Barsoum, N, Tokuchi, N, Korboulewsky, N, Lecomte, N, Filippova, N, Hölzel, O, Ferlian, O, Romero, O, Pinto-Jr, P, Peri, PD, Turtureanu, P, Haase, P, Macreadie, PB, Reich, P, Petřík, P, Choler, P, Marmonier, Q, Ponette, RD, Guariento, R, Canessa, R, Kiese, R, Hewitt, R, Weigel, R, Kanka, RC, Gatti, RL, Martins, R, Ogaya, R, Georges, RG, Gavilán, S, Wittlinger, S, Puijalon, S, Suzuki, S, Martin, S, Anja, S, Gogo, S, Schueler, S, Drollinger, S, Mereu, S, Wipf, S, Trevathan-Tackett, S, Stoll, S, Löfgren, S, Trogisch, S, Seitz, S, Glatzel, S, Venn, S, Dousset, T, Mori, T, Sato, T, Hishi, T, Nakaji, T, Jean-Paul, T, Camboulive, T, Spiegelberger, T, Scholten, TJ, Mozdzer, T, Kleinebecker, T, Rusňák, T, Ramaswiela, T, Hiura, T, Enoki, T, Ursu, UMd, Cella, U, Hamer, V, Klaus, VD, Cecco, V, Rego, V, Fontana, V, Piscová, V, Bretagnolle, V, Maire, V, Farjalla, V, Pascal, W, Zhou, W, Luo, W, Parker, Y, Utsumi, Y, Kominami, Z, Kotroczó, and Z, Tóth. . “Effects of Climate and Atmospheric Nitrogen Deposition on Early to Mid-Term Stage Litter Decomposition Across Biomes.” Frontiers in Forests and Global Change, № 4 doi: 10.3389/ffgc.2021.678480.
- Freitag, M, Klaus, VH, Bolliger, R, Hamer, U, Kleinebecker, T, Prati, D, Schäfer, D, and Hölzel, N. . “Restoration of plant diversity in permanent grassland by seeding: Assessing the limiting factors along land-use gradients.” Journal of Applied Ecology, № 58 (8): 1681–1692. doi: 10.1111/1365-2664.13883.
- Klaus, VH, Friedritz, L, Hamer, U, and Kleinebecker, T. . “Drought boosts risk of nitrate leaching from grassland fertilisation.” Science of the Total Environment, № 726: 137877. doi: 10.1016/j.scitotenv.2020.137877.
- Muskus, AM, Krauss, M, Miltner, A, Hamer, U, and Nowak, KM. . “Degradation of glyphosate in a Colombian soil is influenced by temperature, total organic carbon content and pH.” Environmental Pollution, № 259: 113767.
- Knoke, T, Paul, C, Rammig, A, Gosling, E, Hildebrandt, P, Härtl, F, Peters, T, Richter, M, Diertl, K, Castro, LM, Calvas, B, Ochoa, S, Valle-Carrión, LA, Hamer, U, Tischer, A, Potthast, K, Windhorst, D, Homeier, J, Wilcke, W, Velescu, A, Gerique, A, Pohle, P, Adams, J, Breuer, L, Mosandl, R, Beck, E, Weber, M, Stimm, B, Silva, B, Verburg, PH, and Bendix, J. . “Accounting for multiple ecosystem services in a simulation of land-use decisions: Does it reduce tropical deforestation?” Global Change Biology, № 26 (4): 2403–2420. doi: 10.1111/gcb.15003.
- Poniatowski, D, Stuhldreher, G, Helbing, F, Hamer, U, and Fartmann, T. . “Restoration of calcareous grasslands: The early successional stage promotes biodiversity.” Ecological Engineering, № 151: 105858.
- Tischer, A, Sehl, L, Meyer, UN, Kleinebecker, T, Klaus, VH, and Hamer, U. . “Land-use intensity shapes kinetics of extracellular enzymes in rhizosphere soil of agricultural grassland plant species.” SOIL, № 437: 215–239. doi: 10.1007/s11104-019-03970-w.
- Schäfer, D, Klaus, VH, Kleinebecker, T, Boeddinghaus, R, Hinderling, J, Kandeler, E, Marhan, S, Nowak, S, Sonnemann, I, Wurst, S, Fischer, M, Hölzel, N, Hamer, U, and Prati, D. . “Recovery of ecosystem functions after experimental disturbance in 73 grasslands differing in land-use intensity, plant species richness and community composition.” Journal of Ecology, № 107 (6): 2635–2649. doi: 10.1111/1365-2745.13211.
- Muskus, AM, Krauss, M, Miltner, A, Hamer, U, and Nowak, KM. . “Effect of temperature, pH and total organic carbon variations on microbial turnover of 13C315N-glyphosate in agricultural soil.” Science of the Total Environment, № 658: 697–707.
- Quichimbo, P, Jiménez, L, Veintimilla, D, Potthast, K, Tischer, A, Günter, S, Mosandl, R, and Hamer, U. . “Nutrient dynamics in an Andean forest region: a case study of exotic and native species plantations in southern Ecuador.” New Forests, № 51 (2): 313–334. doi: 10.1007/s11056-019-09734-9DO-10.1007/s11056-019-09734-9.
- Klaus, VH, Schäfer, D, Prati, D, Busch, V, Hamer, U, Hoever, CJ, Kleinebecker, T, Mertens, D, Fischer, M, and Hölzel, N. . “Effects of mowing, grazing and fertilization on soil seed banks in temperate grasslands in Central Europe.” Agriculture, Ecosystems and Environment, № 256: 211–217. doi: 10.1016/j.agee.2017.11.008.
- VH, Klaus, T, Kleinebecker, V, Busch, M, Fischer, Hölzel, S, Nowak, D, Prati, D, Schäfer, I, Schöning, M, Schrumpf, and U, Hamer. . “Land use intensity, rather than plant species richness, affects the leaching risk of multiple nutrients from permanent grasslands.” Global Change Biology, № 24 (7): 2828–2840. doi: 10.1111/gcb.14123.
- Kleinebecker, T, Busch, V, Hölzel, N, Hamer, U, Schäfer, D, Prati, D, Fischer, M, Hemp, A, Lauterbach, R, and Klaus, VH. . “And the winner is … ! A test of simple predictors of plant species richness in agricultural grasslands.” Ecological Indicators, № 87: 296–301. doi: 10.1016/j.ecolind.2017.12.031.
- Klaus, VH, Hoever, CJ, Fischer, M, Hamer, U, Kleinebecker, T, Mertens, D, Schäfer, D, Prati, D, and Hölzel, N. . “Contribution of the soil seed bank to the restoration of temperate grasslands by mechanical sward disturbance.” Restoration Ecology, № 26 (S2): S114–S122. doi: 10.1111/rec.12626.
- Quichimbo, P., Jiménez, L., Veintimilla, D., Tischer, A., Günter, S., Mosandl, R., and Hamer, U. . “Forest site classification in the Southern Andean region of ecuador: A case study of pine plantations to collect a base of soil attributes.” Forests, № 8 (12) doi: 10.3390/f8120473.
- Graham, EB, Knelman, JE, Schindlbacher, A, Siciliano, S, Breulmann, M, Yannarell, A, Beman, JM, Abell, G, Philippot, L, Prosser, J, Foulquier, A, Yuste, JC, Glanville, HC, Jones, D, Angel, R, Salminen, J, Newton, RJ, Bürgmann, H, Ingram, LJ, Hamer, U, Siljanen, HM, Peltoniemi, K, Potthast, K, Bañeras, L, Hartmann, M, Banerjee, S, Yu, RQ, Nogaro, G, Richter, A, Koranda, M, Castle, S, Goberna, M, Song, B, Chatterjee, A, Nunes, OC, Lopes, AR, Cao, Y, Kaisermann, A, Hallin, S, Strickland, MS, Garcia-Pausas, J, Barba, J, Kang, H, Isobe, K, Papaspyrou, S, Pastorelli, R, Lagomarsino, A, Lindström, E, Basiliko, N, and Nemergut, DR. . “Microbes as engines of ecosystem function: when does community structure enhance predictions of ecosystem processes?” Frontiers in Microbiology, № 7 doi: 10.3389/fmicb.2016.00214.
- Knoke, T., Paul, C., Hildebrandt, P., Calvas, B., Castro, L., Hartl, F., Dollerer, M., Hamer, U., Windhorst, D., Wiersma, Y., Curatola, Fernández G., Obermeier, W., Adams, J., Breuer, L., Mosandl, R., Beck, E., Weber, M., Stimm, B., Haber, W., Fürst, C., and Bendix, J. . “Compositional diversity of rehabilitated tropical lands supports multiple ecosystem services and buffers uncertainties.” Nature Communications, № 7 (null) doi: 10.1038/ncomms11877.
- Tischer, A., Blagodatskaya, E., and Hamer, U. . “Microbial community structure and resource availability drive the catalytic efficiency of soil enzymes under land-use change conditions.” Soil Biology and Biochemistry, № 89 (null): 226–237. doi: 10.1016/j.soilbio.2015.07.011.
- Tischer, A., Werisch, M., Döbbelin, F., Camenzind, T., Rillig, M., Potthast, K., and Hamer, U. . “Above- and belowground linkages of a nitrogen and phosphorus co-limited tropical mountain pasture system – responses to nutrient enrichment.” Plant and Soil, № 391 (null): 333–352. doi: 10.1007/s11104-015-2431-7.
- Passauer, L., Hallas, T., Bäucker, E., Ciesielski, G., Lebioda, S., and Hamer, U. . “Biodegradation of Hydrogels from Oxyethylated Lignins in Model Soils.” ACS Sustainable Chemistry & Engineering, № 3 (9): 1955–1964. doi: 10.1021/acssuschemeng.5b00139.
- Tischer, A., Blagodatskaya, E., and Hamer, U. . “Extracellular enzyme activities in a tropical mountain rainforest region of southern Ecuador affected by low soil P status and land-use change.” Applied Soil Ecology, № 74 (null): 1–11. doi: 10.1016/j.apsoil.2013.09.007.
- Tischer, A., Potthast, K., and Hamer, U. . “Land-use and soil depth affect resource and microbial stoichiometry in a tropical mountain rainforest region of southern Ecuador.” Oecologia, № 175 (1): 375–393. doi: 10.1007/s00442-014-2894-x.
- Knoke, T, Bendix, J, Pohle, P, Hamer, U, Hildebrandt, P, Roos, K, Gerique, A, Sandoval, ML, Breuer, L, Tischer, A, Silva, B, Calvas, B, Aguirre, N, Castro, LM, Windhorst, D, Weber, M, Stimm, B, Guenter, S, Palomeque, X, Mora, J, Mosandl, R, and Beck, E. . “Afforestation or intense pasturing improve the ecological and economic value of abandoned tropical farmlands.” Nature Communications, № 5 doi: 10.1038/ncomms6612.
- Hamer, U, Potthast, K, Burneo, JI, and Makeschin, F. . “Nutrient stocks and phosphorus fractions in mountain soils of Southern Ecuador after conversion of forest to pasture.” Biogeochemistry, № 112 (1-3): 495–510. doi: 10.1007/s10533-012-9742-z.
- Pulleman, M, Creamer, R, Hamer, U, Helder, J, Pelosi, C, Pérès, G, and Rutgers, M. . “Soil biodiversity, biological indicators and soil ecosystem services-an overview of European approaches.” Current Opinion in Environmental Sustainability, № 4 (5): 529–538. doi: 10.1016/j.cosust.2012.10.009.
- Potthast, K, Hamer, U, and Makeschin, F. . “Land-use change in a tropical mountain rainforest region of southern Ecuador affects soil microorganisms and nutrient cycling.” Biogeochemistry, № 111 (1-3): 151–167. doi: 10.1007/s10533-011-9626-7.
- Potthast, K, Hamer, U, and Makeschin, F. . “In an Ecuadorian pasture soil the growth of Setaria sphacelata, but not of soil microorganisms, is co-limited by N and P.” Applied Soil Ecology, № 62: 103–114. doi: 10.1016/j.apsoil.2012.08.003.
- Hamer, U, Rumpel, C, and Dignac, M-F. . “Cutin and suberin biomarkers as tracers for the turnover of shoot and root derived organic matter along a chronosequence of Ecuadorian pasture soils.” European Journal of Soil Science, № 63 (6): 808–819. doi: 10.1111/j.1365-2389.2012.01476.x.
- Potthast, K, Hamer, U, and Makeschin, F. . “Impact of litter quality on mineralization processes in managed and abandoned pasture soils in Southern Ecuador.” Soil Biology and Biochemistry, № 42 (1): 56–64. doi: 10.1016/j.soilbio.2009.09.025.
- Hamer, U, Potthast, K, and Makeschin, F. . “Urea fertilisation affected soil organic matter dynamics and microbial community structure in pasture soils of Southern Ecuador.” Applied Soil Ecology, № 43 (2-3): 226–233. doi: 10.1016/j.apsoil.2009.08.001.
- Hamer, U, and Makeschin, F. . “Rhizosphere soil microbial community structure and microbial activity in set-aside and intensively managed arable land.” Plant and Soil, № 316 (1-2): 57–69. doi: 10.1007/s11104-008-9758-2.
- Hamer, U, Makeschin, F, An, S, and Zheng, F. . “Microbial activity and community structure in degraded soils on the Loess Plateau of China.” Journal of Plant Nutrition and Soil Science, № 172 (1): 118–126. doi: 10.1002/jpln.200700340.
- An, S, Zheng, F, Zhang, F, Van Pelt, S, Hamer, U, and Makeschin, F. . “Soil quality degradation processes along a deforestation chronosequence in the Ziwuling area, China.” CATENA, № 75 (3): 248–256. doi: 10.1016/j.catena.2008.07.003.
- Hamer, U, Makeschin, F, Stadler, J, and Klotz, S. . “Soil organic matter and microbial community structure in set-aside and intensively managed arable soils in NE-Saxony, Germany.” Applied Soil Ecology, № 40 (3): 465–475. doi: 10.1016/j.apsoil.2008.07.001.
- Marschner, B, Brodowski, S, Dreves, A, Gleixner, G, Gude, A, Grootes, PM, Hamer, U, Heim, A, Jandl, G, Ji, R, Kaiser, K, Kalbitz, K, Kramer, C, Leinweber, P, Rethemeyer, J, Schäffer, A, Schmidt, MWI, Schwark, L, and Wiesenberg, GLB. . “How relevant is recalcitrance for the stabilization of organic matter in soils?” Journal of Plant Nutrition and Soil Science, № 171 (1): 91–110. doi: 10.1002/jpln.200700049.
- Ohm, H, Hamer, U, and Marschner, B. . “Priming effects in soil size fractions of a podzol Bs horizon after addition of fructose and alanine.” Journal of Plant Nutrition and Soil Science, № 170 (4): 551–559. doi: 10.1002/jpln.200625087.
- Hamer, U, Unger, M, and Makeschin, F. . “Impact of air-drying and rewetting on PLFA profiles of soil microbial communities.” Journal of Plant Nutrition and Soil Science, № 170 (2): 259–264. doi: 10.1002/jpln.200625001.
- Hamer, U, and Marschner, B. . “Priming effects in soils after combined and repeated substrate additions.” Geoderma, № 128 (1-2): 38–51. doi: 10.1016/j.geoderma.2004.12.014.
- Hamer, U, and Marschner, B. . “Priming effects in different soil types induced by fructose, alanine, oxalic acid and catechol additions.” Soil Biology and Biochemistry, № 37 (3): 445–454. doi: 10.1016/j.soilbio.2004.07.037.
- Hamer, U, Marschner, B, Brodowski, S, and Amelung, W. . “Interactive priming of black carbon and glucose mineralisation.” Organic Geochemistry, № 35 (7): 823–830. doi: 10.1016/j.orggeochem.2004.03.003.
- Hamer, U, and Marschner, B. . “Priming effects of sugars, amino acids, organic acids and catechol on the mineralization of lignin and peat.” Journal of Plant Nutrition and Soil Science, № 165 (3): 261–268. doi: 10.1002/1522-2624(200206)165:3<261::AID-JPLN261>3.0.CO;2-I.