Manure fertilization increases soil respiration and creates a negative carbon budget in a Mediterranean maize (Zea mays L.)-based cropping system

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• 作者：Roberto Lai^a ; ^b ; ^d ; ^{rlai@uniss.it} ; Pasquale Arca^a ; ^b ; Alessandra Lagomarsino^c ; Chiara Cappai^b ; Giovanna Seddaiu^a ; ^b ; Clara Ella Demurtas^b ; Pier Paolo Roggero^a ; ^b
• 关键词：MA ; manure ; MI ; mineral ; Rh ; soil heterotrophic respiration ; SL ; slurry ; SM ; slurry  ; +  ; mineral ; SR ; soil total respiration ; SWC ; soil water content ; T ; soil temperature
• 刊名：CATENA
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：151
• 期：Complete
• 页码：202-212
• 全文大小：1472 K
• 卷排序：151

文摘

Soil T was the main driver of soil respiration in irrigated cropping systems. The fertilization system greatly affected soil C losses and the soil C budget. Mineral fertilization changed the soil respiration sensitivity to temperature. Fertilization with manure was less efficient in mitigating CO2 emissions. Fertilization with manure resulted in a significantly negative soil C balance.