Effects of different agricultural organic wastes on soil GHG emissions During a 4-year field measurement in the North China Plain

Effects of different agricultural organic wastes on soil GHG emissions : During a 4-year field measurement in the North China Plain

Copyright © 2018 Elsevier Ltd. All rights reserved.

Bibliographische Detailangaben
Veröffentlicht in:Waste management (New York, N.Y.). - 1999. - 81(2018) vom: 01. Nov., Seite 202-210
1. Verfasser: Li, Zhejin (VerfasserIn)
Weitere Verfasser: Wang, Dong, Sui, Peng, Long, Pan, Yan, Lingling, Wang, Xiaolong, Yan, Peng, Shen, Yawen, Dai, Hongcui, Yang, Xiaolei, Cui, Jixiao, Chen, Yuanquan
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Waste management (New York, N.Y.)
Schlagworte:Journal Article Characteristics of organic wastes Cropping system Emission factors North China Plain Organic wastes Soil GHG emission Greenhouse Gases Carbon 7440-44-0
Beschreibung
Zusammenfassung:Copyright © 2018 Elsevier Ltd. All rights reserved.
Large quantities and many varieties of agricultural organic wastes are produced in China annually. Applying agricultural organic wastes to soil plays an essential role in coping with the environmental pollution from agricultural wastes, solving the energy crisis and responding global climate change. But there is little information available on the effects of different agricultural organic wastes on soil greenhouse gas (GHG) emissions. The objectives of this study were to investigate and compare the impacts of different organic wastes on soil GHG emissions during a 4-year field experiments in the North China Plain, as well as analyze the influential factors that may be related to GHG emissions. The treatments were: crop straw (CS), biogas residue (BR), mushroom residue (MR), wine residue (WR) and pig manure (PM) returning to soil, as well as a control with no organic waste applied to soil but chemical fertilizer addition only (CF). The results showed that compared with CF treatment, organic material applied to soil significantly increased GHG emissions and emissions followed the order of WR(27,961.51 kg CO2-eq/ha/yr) > PM(26,376.50 kg CO2-eq/ha/yr) > MR(23,366.60 kg CO2-eq/ha/yr) > CS(22,434.44 kg CO2-eq/ha/yr) > BR (22,029.04 kg CO2-eq/ha/yr) > CF(17,402.77 kg CO2-eq/ha/yr), averagely. And considering the affecting factors, GHG emissions were significantly related to soil temperature and soil water content. Different organic wastes also affected soil total organic carbon (TOC), microbial carbon (MBC) and dissolved organic carbon (DOC) contents, which related to GHG emissions. Further analysis showed that characteristics of organic wastes affected GHG emissions, which included C-N ratio, lignin, polyphenol, cellulose and hemicellulose. Our study demonstrates that biogas residue returning to soil emitted minimum GHG emissions among these different types of organic wastes, which provided a better solution for applying organic wastes to mitigate soil GHG emissions
Beschreibung:Date Completed 15.07.2019
Date Revised 15.07.2019
published: Print-Electronic
Citation Status MEDLINE
ISSN:1879-2456
DOI:10.1016/j.wasman.2018.10.008