TY - GEN A1 - Dilly, Oliver A1 - Franke, G. A1 - Nii-Annang, Seth A1 - Weber, K. A1 - Freese, Dirk A1 - Zyakun, Anatoly A1 - Hüttl, Reinhard F. T1 - Soil respiratory indicators including carbon isotope characteristics in response to copper T2 - Geomicrobiology Journal Y1 - 2008 U6 - https://doi.org/10.1080/01490450802402992 SN - 1521-0529 VL - 25 IS - 7-8 SP - 390 EP - 395 ER - TY - GEN A1 - Slazak, Anna A1 - Freese, Dirk A1 - Matos, Eduardo da Silva A1 - Nii-Annang, Seth A1 - Hüttl, Reinhard F. T1 - Phosphorus pools in soil after land conversion from silvopasture to arable and grassland use T2 - Journal of Plant Nutrition and Soil Science N2 - Differences in soil P among silvopasture, grassland, and arable lands have been well established. Nevertheless, most of the reports compare soil properties under long-term sites. Thus, there exists little information on the effect of the conversion of silvopasture to arable or grassland use on soil P pools. The objective of the study was to determine the impact of converting silvopasture system (SP) into arable cropping and grassland system on the distribution of P pools and potential P bioavailability. We compared the following systems: SP system, SP converted to arable cropland (SP-AL), SP converted to grassland (SP-GL), and for comparative purposes, a long-term arable cropland (AL). The P fractionation was performed by a sequential extraction scheme, using acid and alkaline extractants on samples collected from the 0–10 and 10–20 cm soil layers. It was assumed that the large variations in soil-P fractionations are caused by the different management practices associated with land conversion. The results of P fractionation showed a dominance of calcium-bound P, HCl-extractable Pi constituted up to 36% of the soil total P (TP). However, the type of land use did not affect this P fraction. On the other hand, the reduction in labile-Pi and NaOH-Pi fractions observed at the SP-AL site may have led to the decline in readily available P. The soil total organic P (TPo) content was 8% and 17% lower at SP-AL compared to SP and SP-GL site, respectively. Labile organic-P (labile-Po) content was markedly higher at SP site compared to arable soils, and was ≈ 10% of TPo. The NaOH-Po constituted the highest fraction of the organic-P pool (55%–79% of TPo) across all the study systems, and was positively correlated with TPo (p < 0.01). The study indicates that conversion of SP system in temperate regions to arable cropping with conventional tillage seems to result in the reduction of P availability compared to SP, indicating SP as an important land-use practice. Y1 - 2014 U6 - https://doi.org/10.1002/jpln.201200334 SN - 1522-2624 VL - 177 IS - 2 SP - 159 EP - 167 ER - TY - GEN A1 - Nii-Annang, Seth A1 - Grünewald, Holger A1 - Freese, Dirk A1 - Hüttl, Reinhard F. A1 - Dilly, Oliver T1 - Microbial activity, organic C accumulation and 13C abundance in soils under alley cropping systems after 9 years of recultivation of quaternary deposits T2 - Biology and Fertility of Soils Y1 - 2009 U6 - https://doi.org/10.1007/s00374-009-0360-4 SN - 1432-0789 VL - 45 IS - 5 SP - 531 EP - 538 ER - TY - CHAP A1 - Dilly, Oliver A1 - Nii-Annang, Seth A1 - Schrautzer, J. A1 - Schwartze, P. A1 - Breuer, P. A1 - Pfeiffer, Eva-Maria A1 - Gerwin, Werner A1 - Schaaf, Wolfgang A1 - Freese, Dirk A1 - Veste, Maik A1 - Hüttl, Reinhard F. ED - Müller, Felix ED - Baessler, Cornelia ED - Schubert, Hendrik ED - Klotz, Stefan T1 - Ecosystem Manipulation and Restoration on the Basis of Long-Term Conceptions T2 - Long-Term Ecological Research Between Theory and Application Y1 - 2010 SN - 978-90-481-8781-2 SP - 411 EP - 428 PB - Springer Netherlands CY - Dordrecht ER - TY - CHAP A1 - Dilly, Oliver A1 - Nii-Annang, Seth A1 - Böhm, Christian A1 - Grünewald, Holger A1 - Freese, Dirk A1 - Schneider, Bernd Uwe A1 - Hüttl, Reinhard F. T1 - Agroforestry as an environmental technology for multiple purposes and for atmospheric carbon dioxide and nitrogen fixation in the sensitive region Lusatia T2 - Impact Assessment of Land Use Changes, International Conference, 6-9 April 2008 in Berlin Y1 - 2008 UR - http://tran.zalf.de/home_ip-sensor/conference/IALUC2008Abstracts.pdf SP - S. 220 ER -