A global meta-analysis of soil organic carbon response to corn stover removal

被引:61
作者
Xu, Hui [1 ]
Sieverding, Heidi [2 ]
Kwon, Hoyoung [1 ]
Clay, David [3 ]
Stewart, Catherine [4 ]
Johnson, Jane M. F. [5 ]
Qin, Zhangcai [1 ,7 ,8 ]
Karlen, Douglas L. [6 ]
Wang, Michael [1 ]
机构
[1] Argonne Natl Lab, Div Energy Syst, Syst Assessment Grp, Lemont, IL 60439 USA
[2] South Dakota Sch Mines & Technol, Rapid City, SD USA
[3] South Dakota State Univ, Brookings, SD 57007 USA
[4] ARS, USDA, Ft Collins, CO USA
[5] ARS, USDA, Morris, MN USA
[6] ARS, USDA, Ames, IA USA
[7] Sun Yat Sen Univ, Sch Atmospher Sci, Guangzhou, Guangdong, Peoples R China
[8] Sun Yat Sen Univ, Guangdong Prov Key Lab Climate Change & Nat Disas, Guangzhou, Guangdong, Peoples R China
来源
GLOBAL CHANGE BIOLOGY BIOENERGY | 2019年 / 11卷 / 10期
关键词
carbon sequestration; corn; meta-analysis; soil organic carbon; stover removal; tillage; NITROGEN-FERTILIZATION; RESIDUE REMOVAL; CROP RESIDUE; CONSERVATION AGRICULTURE; EMISSION FACTORS; SOC STOCKS; LOAM SOIL; TILLAGE; SEQUESTRATION; MANAGEMENT;
D O I
10.1111/gcbb.12631
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Corn (Zea mays L.) stover is a global resource used for livestock, fuel, and bioenergy feedstock, but excessive stover removal can decrease soil organic C (SOC) stocks and deteriorate soil health. Many site-specific stover removal experiments report accrual rates and SOC stock effects, but a quantitative, global synthesis is needed to provide a scientific base for long-term energy policy decisions. We used 409 data points from 74 stover harvest experiments conducted around the world for a metaanalysis and meta-regression to quantify removal rate, tillage, soil texture, and soil sampling depth effects on SOC. Changes were quantified by: (a) comparing final SOC stock differences after at least 3 years with and without stover removal and (b) calculating SOC accrual rates for both treatments. Stover removal generally reduced final SOC stocks by 8% in the upper 0-15 or 0-30 cm, compared to stover retained, irrespective of soil properties and tillage practices. A more sensitive meta-regression analysis showed that retention increased SOC stocks within the 30-150 cm depth by another 5%. Compared to baseline values, stover retention increased average SOC stocks temporally at a rate of 0.41 Mg C ha(-1) year(-1) (statistically significant at p < 0.01 when averaged across all soil layers). Although SOC sequestration rates were lower with stover removal, with moderate (< 50%) removal they can be positive, thus emphasizing the importance of site-specific management. Our results also showed that tillage effects on SOC stocks were inconsistent due to the high variability in practices used among the experimental sites. Finally, we conclude that research and technological efforts should continue to be given high priority because of the importance in providing science-based policy recommendations for long-term global carbon management.
引用
收藏
页码:1215 / 1233
页数:19
相关论文
共 74 条
[1]   Sustainability of Corn Stover Harvest Strategies in Pennsylvania [J].
Adler, Paul R. ;
Rau, Benjamin M. ;
Roth, Gregory W. .
BIOENERGY RESEARCH, 2015, 8 (03) :1310-1320
[2]   Changes in soil organic carbon under biofuel crops [J].
Anderson-Teixeira, Kristina J. ;
Davis, Sarah C. ;
Masters, Michael D. ;
Delucia, Evan H. .
GLOBAL CHANGE BIOLOGY BIOENERGY, 2009, 1 (01) :75-96
[3]  
[Anonymous], PROP REG IMPL LOW CA
[4]  
[Anonymous], 2018, OECD-FAO Agricultural Outlook 2018-2027, DOI [10.1787/agr_outlook-2018-en, DOI 10.1787/AGR_OUTLOOK-2018-EN]
[5]   Soil and crop response to harvesting corn residues for biofuel production [J].
Blanco-Canqui, Humberto ;
Lal, R. .
GEODERMA, 2007, 141 (3-4) :355-362
[6]   Crop Residue Removal Impacts on Soil Productivity and Environmental Quality [J].
Blanco-Canqui, Humberto ;
Lal, R. .
CRITICAL REVIEWS IN PLANT SCIENCES, 2009, 28 (03) :139-163
[7]   Rapid changes in soil carbon and structural properties due to stover removal from no-till corn plots [J].
Blanco-Canqui, Humerto ;
Lal, R. ;
Post, W. M. ;
Izaurralde, R. C. ;
Owens, L. B. .
SOIL SCIENCE, 2006, 171 (06) :468-482
[8]   Global nitrous oxide emission factors from agricultural soils after addition of organic amendments: A meta-analysis [J].
Charles, Anais ;
Rochette, Philippe ;
Whalen, Joann K. ;
Angers, Denis A. ;
Chantigny, Martin H. ;
Bertrand, Normand .
AGRICULTURE ECOSYSTEMS & ENVIRONMENT, 2017, 236 :88-98
[9]   Does the combined application of organic and mineral nutrient sources influence maize productivity? A meta-analysis [J].
Chivenge, Pauline ;
Vanlauwe, Bernard ;
Six, Johan .
PLANT AND SOIL, 2011, 342 (1-2) :1-30
[10]   Soil organic carbon and 13C abundance as related to tillage, crop residue, and nitrogen fertilization under continuous corn management in Minnesota [J].
Clapp, CE ;
Allmaras, RR ;
Layese, MF ;
Linden, DR ;
Dowdy, RH .
SOIL & TILLAGE RESEARCH, 2000, 55 (3-4) :127-142