6788
Characterization of the Soil Organic Matter in Agricultural Mine Spoils and Reclaimed Soils Treated with Organic Amendments 期刊名称： Communications in Soil Science & Plant Analysis
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四六级算分器>mystery是什么意思作者： Fiorenzo Cesare Ugolini,Paola Arfaioli,Marinella Botto,Alessandro
suffer的用法Degl'Innocenti,Irene Malescithe是什么意思
kugu
insistent年份： 2010年
英文自我介绍面试期号： 第1期
关键词： Amendments;δ 13C abundance;density fractionation;mine spoils;δ 15N abundance;organic matter;reclaimed soils;sludge
摘要：Recycling organic waste in agricultural soils is a valid solution. We performed short‐term experiments to investigate the fate of urban sludge and composts, in mine spoils, cultivated or uncultivated, and reclaimed soils located in Florence and Milan, Italy. The samples, either treated or untreated, were fractionated by density into light (<1.63 Mg m−3) and heavy (>1.63 Mg m−3) fractions.
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The fractions were analyzed for total carbon (C) and nitrogen (N) contents and for δ 13C and δ 15N isotopes, and they were characterized by 13C NMR spectroscopy. Treatment incread the heavy fraction. The addition of sludge in the Florence area acts in synergy with the cultivation, increasing the light fraction (LF). In the Milan area, the LF tends to be decompod and apparently transformed into HF. The addition of
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