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11篇 您的检索式:作者名="Karsten KALBITZ"
    题名 作者 年代 出处 被引量
1黄土区几种土壤培养过程中可溶性有机碳、氮含量及特性的变化显示文摘对不同地域农田和林地土壤进行35 d好气培养研究,结果表明:不同土壤培养过程中可溶性有机碳(SOC)含量呈明显下降,而可溶性有机氮(SON)含量却呈明显增加趋势。不同农田土壤相比,在培养起始时和培养过程中红油土SOC和SON的平均含量均高于黑垆土和淋溶褐土;同为黑垆土,林地土壤SOC和SON含量均明显高于相应农田土壤。与起始值相比,土壤培养后提取的可溶性有机物的UV280和HIXem(Hu-mification index)值均明显增加,其中HIXem值在培养的第8天和第35天时呈显著增加趋势。随着培养过程的持续,SOC/SON比值逐渐下降。相关分析发现,培养第35天时SOC的减少幅度与UV 280增加比例呈显著正相关;培养第8天时SOC的减少比例与起始HIXem值呈显著负相关。说明UV280和HIXem值可以在一定程度上反映可溶性有机物种类和结构特性的变化。赵满兴 Kalbitz Karsten 周建斌 2008土壤学报2008,45,3:19
2黄土区几种土壤培养过程中可溶性有机氮的变化及其与土壤矿化氮的关系显示文摘研究了黄土高原12种土壤(农地和林地)35 d好气培养过程中可溶性有机氮(SON)含量及其占可溶性全氮(TSN)的比例,以及SON与土壤矿化氮间的关系。结果表明,随着培养过程的进行,不同类型土壤SON的含量均呈明显增加;土壤SON占TSN的比例在培养的前3 d内明显下降,随后这一比例基本保持在24%左右。根据总可溶性氮确定的供试土壤氮素矿化势No平均为45.8 mg/kg,较由矿化的无机氮确定的土壤氮素矿化势No(平均36.5 mg/kg)高约1/4左右;培养过程中土壤SON含量与利用无机氮拟合得到的土壤氮素矿化势No间的相关性未达显著水平。研究表明,评价土壤氮素矿化特性时仅仅测定矿化的无机氮数量,可能会低估土壤氮素矿化潜力和氮素损失的数量和效应。赵满兴 Kalbitz Karsten 周建斌 2008水土保持学报2008,22,4:7
3Influence of Organo-Metal Interactions on Regeneration of Exhausted Clay Mineral Sorbents in Soil Columns Loaded with Heavy Metals显示文摘Natural clay minerals can play an important role in crude remediation of wastewater polluted with the heavy metals(HMs) Cu, Zn and Ni. The presence and timing of addition of natural dissolved organic matter(DOM) have a significant effect on the HM removal by clay mineral sorbents. However, the influence of the presence of DOM on the remediation of the used clay mineral sorbents once saturated with HMs is largely unknown. To resolve this, clay mineral-rich soil column of varying composition, loaded(i) with Cu, Zn and Ni only,(ii) first with DOM followed by Cu, Zn and Ni, or(iii) with DOM, Cu, Zn and Ni simultaneously, was used in a set of desorption experiments. The soil columns were leached with 0.001 mol L^(-1)CaCl_2 dissolved in water as control eluent and 0.001 mol L^(-1)CaCl_2 dissolved in DOM as treatment eluent. During the preceding loading phase of the sorbent, the timing of DOM addition(sequential or concurrent with HMs) was found to have a significant influence on the subsequent removal of the HMs. In particular when the column was loaded with DOM and HMs simultaneously, largely irreversible co-precipitation took place. Our results indicate that the regeneration potential of clay mineral sorbents in wastewater treatment will be significantly reduced when the treated water is rich in DOM. In contrast, in manured agricultural fields(where HMs enter together with DOM), HM mobility will be lower than expected from interaction dynamics of HMs and clay minerals.Yasser REFAEY Boris JANSEN Pim DE VOOGT John R.PARSONS Abdel-Hamid EL-SHATER Abdel-Aziz EL-HADDAD Karsten KALBITZ 2017Pedosphere2017,27,3:2
4Different effect of peat degradation on dissolved organic carbon and nitrogen显示文摘Karsten Kalbitz Stefan Geyer 2000Organic Geochemistry2000,,33:1
5Stabilization of dissolved organic matter by sorption to the mineral soil显示文摘Karsten Kalbitz David Schwesig Janet Rethemeyer Egbert Matzner 2005Soil Biology and Biochemistry2005,,7:1
6Controls of bioavailability and biodegradability of dissolved organic matter in soils显示文摘Bernd Marschner Karsten Kalbitz 2002Geoderma2002,,3:1
7Biogeochemistry of paddy soils显示文摘Ingrid K?gel-Knabner Wulf Amelung Zhihong Cao Sabine Fiedler Peter Frenzel Reinhold Jahn Karsten Kalbitz Angelika K?lbl Michael Schloter 2010Geoderma2010,,1:1
8β-HCH mobilization in polluted wetland soils as influenced bydissolved organic matter显示文摘Kalbitz Karsten Popp Peter Geyer Wolfgang 1997Science of the Total Environ-ment1997,204,1:1
9Controls of bioavailability and biodegradability of dissolved organic matter in soils显示文摘Bernd Marschner Karsten Kalbitz 2002Geoderma2002,,3:1
10Application of solid- phase microextraction and gas chromatography with electron- capture and mass spectrometric detection for the determination of hexachlorocychohexanes in soil solutions 显示文摘Popp Peter Kalbitz Karsten Oppermann Gudrun 1994Chromatography A1994,657,3:1
11Response of dissolved organic matter in the forest floor to long-term manipulation of litter and throughfall inputs显示文摘Karsten Kalbitz Armin Meyer Rong Yang Pedro Gerstberger 2007Biogeochemistry2007,,3:1
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