Biomass and Bioenergy

Biomass & Bioenergy is an international journal publishing original research papers and short communications, review articles and case studies on biological resources, chemical and biological processes, and biomass products for new renewable sources of energy and materials. The scope of the journal extends to the environmental, management and economic aspects of biomass and bioenergy. Key areas covered by the journal: • Biomass: sources, energy crop production processes, genetic improvements, composition. Please note that research on these biomass subjects must be linked directly to bioenergy generation. • Biological Residues: residues/rests from agricultural production, forestry and plantations (palm, sugar etc), processing industries, and municipal sources (MSW). Papers on the use of biomass residues through innovative processes/technological novelty and/or consideration of feedstock/system sustainability (or unsustainability) are welcomed. However waste treatment processes and pollution control or mitigation which are only tangentially related to bioenergy are not in the scope of the journal, as they are more suited to publications in the environmental arena. Papers that describe conventional waste streams (ie well described in existing literature) that do not empirically address 'new' added value from the process are not suitable for submission to the journal. • Bioenergy Processes: fermentations, thermochemical conversions, liquid and gaseous fuels, and petrochemical substitutes • Bioenergy Utilization: direct combustion, gasification, electricity production, chemical processes, and by-product remediation • Biomass and the Environment: carbon cycle, the net energy efficiency of bioenergy systems, assessment of sustainability, and biodiversity issues.

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Quartiles

The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Category	Year	Quartile
Agronomy and Crop Science	1999	Q2
Agronomy and Crop Science	2000	Q2
Agronomy and Crop Science	2001	Q2
Agronomy and Crop Science	2002	Q2
Agronomy and Crop Science	2003	Q1
Agronomy and Crop Science	2004	Q1
Agronomy and Crop Science	2005	Q1
Agronomy and Crop Science	2006	Q1
Agronomy and Crop Science	2007	Q1
Agronomy and Crop Science	2008	Q1
Agronomy and Crop Science	2009	Q1
Agronomy and Crop Science	2010	Q1
Agronomy and Crop Science	2011	Q1
Agronomy and Crop Science	2012	Q1
Agronomy and Crop Science	2013	Q1
Agronomy and Crop Science	2014	Q1
Agronomy and Crop Science	2015	Q1
Agronomy and Crop Science	2016	Q1
Agronomy and Crop Science	2017	Q1
Agronomy and Crop Science	2018	Q1
Agronomy and Crop Science	2019	Q1
Agronomy and Crop Science	2020	Q1
Agronomy and Crop Science	2021	Q1
Agronomy and Crop Science	2022	Q1
Agronomy and Crop Science	2023	Q1
Forestry	1999	Q2
Forestry	2000	Q2
Forestry	2001	Q2
Forestry	2002	Q2
Forestry	2003	Q1
Forestry	2004	Q1
Forestry	2005	Q1
Forestry	2006	Q1
Forestry	2007	Q1
Forestry	2008	Q1
Forestry	2009	Q1
Forestry	2010	Q1
Forestry	2011	Q1
Forestry	2012	Q1
Forestry	2013	Q1
Forestry	2014	Q1
Forestry	2015	Q1
Forestry	2016	Q1
Forestry	2017	Q1
Forestry	2018	Q1
Forestry	2019	Q1
Forestry	2020	Q1
Forestry	2021	Q1
Forestry	2022	Q1
Forestry	2023	Q1
Renewable Energy, Sustainability and the Environment	1999	Q2
Renewable Energy, Sustainability and the Environment	2000	Q2
Renewable Energy, Sustainability and the Environment	2001	Q2
Renewable Energy, Sustainability and the Environment	2002	Q2
Renewable Energy, Sustainability and the Environment	2003	Q1
Renewable Energy, Sustainability and the Environment	2004	Q1
Renewable Energy, Sustainability and the Environment	2005	Q1
Renewable Energy, Sustainability and the Environment	2006	Q1
Renewable Energy, Sustainability and the Environment	2007	Q1
Renewable Energy, Sustainability and the Environment	2008	Q1
Renewable Energy, Sustainability and the Environment	2009	Q1
Renewable Energy, Sustainability and the Environment	2010	Q1
Renewable Energy, Sustainability and the Environment	2011	Q1
Renewable Energy, Sustainability and the Environment	2012	Q1
Renewable Energy, Sustainability and the Environment	2013	Q1
Renewable Energy, Sustainability and the Environment	2014	Q1
Renewable Energy, Sustainability and the Environment	2015	Q1
Renewable Energy, Sustainability and the Environment	2016	Q1
Renewable Energy, Sustainability and the Environment	2017	Q1
Renewable Energy, Sustainability and the Environment	2018	Q2
Renewable Energy, Sustainability and the Environment	2019	Q2
Renewable Energy, Sustainability and the Environment	2020	Q2
Renewable Energy, Sustainability and the Environment	2021	Q2
Renewable Energy, Sustainability and the Environment	2022	Q2
Renewable Energy, Sustainability and the Environment	2023	Q2
Waste Management and Disposal	1999	Q2
Waste Management and Disposal	2000	Q2
Waste Management and Disposal	2001	Q2
Waste Management and Disposal	2002	Q2
Waste Management and Disposal	2003	Q1
Waste Management and Disposal	2004	Q1
Waste Management and Disposal	2005	Q1
Waste Management and Disposal	2006	Q1
Waste Management and Disposal	2007	Q1
Waste Management and Disposal	2008	Q1
Waste Management and Disposal	2009	Q1
Waste Management and Disposal	2010	Q1
Waste Management and Disposal	2011	Q1
Waste Management and Disposal	2012	Q1
Waste Management and Disposal	2013	Q1
Waste Management and Disposal	2014	Q1
Waste Management and Disposal	2015	Q1
Waste Management and Disposal	2016	Q1
Waste Management and Disposal	2017	Q1
Waste Management and Disposal	2018	Q1
Waste Management and Disposal	2019	Q1
Waste Management and Disposal	2020	Q1
Waste Management and Disposal	2021	Q1
Waste Management and Disposal	2022	Q1
Waste Management and Disposal	2023	Q1

SJR

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Year	SJR
1999	0.429
2000	0.424
2001	0.455
2002	0.435
2003	0.659
2004	1.027
2005	1.214
2006	1.268
2007	1.361
2008	1.614
2009	1.728
2010	1.914
2011	1.759
2012	1.516
2013	1.666
2014	1.865
2015	1.510
2016	1.198
2017	1.235
2018	1.072
2019	1.110
2020	1.037
2021	1.009
2022	1.045
2023	1.107

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
1999	83
2000	83
2001	86
2002	92
2003	100
2004	114
2005	95
2006	127
2007	90
2008	147
2009	203
2010	231
2011	566
2012	419
2013	390
2014	443
2015	341
2016	316
2017	244
2018	323
2019	315
2020	346
2021	307
2022	250
2023	242

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per document	Year	Value
Cites / Doc. (4 years)	1999	0.766
Cites / Doc. (4 years)	2000	0.727
Cites / Doc. (4 years)	2001	0.860
Cites / Doc. (4 years)	2002	0.986
Cites / Doc. (4 years)	2003	1.355
Cites / Doc. (4 years)	2004	1.471
Cites / Doc. (4 years)	2005	1.827
Cites / Doc. (4 years)	2006	2.773
Cites / Doc. (4 years)	2007	2.920
Cites / Doc. (4 years)	2008	4.192
Cites / Doc. (4 years)	2009	5.048
Cites / Doc. (4 years)	2010	5.406
Cites / Doc. (4 years)	2011	5.721
Cites / Doc. (4 years)	2012	4.805
Cites / Doc. (4 years)	2013	5.137
Cites / Doc. (4 years)	2014	5.101
Cites / Doc. (4 years)	2015	4.845
Cites / Doc. (4 years)	2016	4.670
Cites / Doc. (4 years)	2017	4.483
Cites / Doc. (4 years)	2018	4.371
Cites / Doc. (4 years)	2019	4.400
Cites / Doc. (4 years)	2020	5.056
Cites / Doc. (4 years)	2021	5.549
Cites / Doc. (4 years)	2022	6.404
Cites / Doc. (4 years)	2023	6.764
Cites / Doc. (3 years)	1999	0.766
Cites / Doc. (3 years)	2000	0.736
Cites / Doc. (3 years)	2001	0.711
Cites / Doc. (3 years)	2002	0.829
Cites / Doc. (3 years)	2003	1.425
Cites / Doc. (3 years)	2004	1.435
Cites / Doc. (3 years)	2005	1.784
Cites / Doc. (3 years)	2006	2.660
Cites / Doc. (3 years)	2007	2.693
Cites / Doc. (3 years)	2008	3.859
Cites / Doc. (3 years)	2009	4.354
Cites / Doc. (3 years)	2010	5.357
Cites / Doc. (3 years)	2011	5.487
Cites / Doc. (3 years)	2012	4.216
Cites / Doc. (3 years)	2013	4.822
Cites / Doc. (3 years)	2014	4.881
Cites / Doc. (3 years)	2015	4.430
Cites / Doc. (3 years)	2016	4.165
Cites / Doc. (3 years)	2017	4.247
Cites / Doc. (3 years)	2018	4.156
Cites / Doc. (3 years)	2019	4.379
Cites / Doc. (3 years)	2020	4.933
Cites / Doc. (3 years)	2021	5.713
Cites / Doc. (3 years)	2022	6.695
Cites / Doc. (3 years)	2023	6.715
Cites / Doc. (2 years)	1999	0.680
Cites / Doc. (2 years)	2000	0.629
Cites / Doc. (2 years)	2001	0.518
Cites / Doc. (2 years)	2002	0.763
Cites / Doc. (2 years)	2003	1.140
Cites / Doc. (2 years)	2004	1.479
Cites / Doc. (2 years)	2005	1.650
Cites / Doc. (2 years)	2006	2.325
Cites / Doc. (2 years)	2007	2.315
Cites / Doc. (2 years)	2008	3.018
Cites / Doc. (2 years)	2009	4.456
Cites / Doc. (2 years)	2010	5.029
Cites / Doc. (2 years)	2011	4.523
Cites / Doc. (2 years)	2012	3.700
Cites / Doc. (2 years)	2013	4.471
Cites / Doc. (2 years)	2014	4.211
Cites / Doc. (2 years)	2015	3.687
Cites / Doc. (2 years)	2016	3.755
Cites / Doc. (2 years)	2017	3.791
Cites / Doc. (2 years)	2018	3.975
Cites / Doc. (2 years)	2019	4.014
Cites / Doc. (2 years)	2020	5.071
Cites / Doc. (2 years)	2021	5.610
Cites / Doc. (2 years)	2022	6.522
Cites / Doc. (2 years)	2023	6.731

Total Cites

Self-Cites

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Cites	Year	Value
Self Cites	1999	56
Self Cites	2000	37
Self Cites	2001	47
Self Cites	2002	32
Self Cites	2003	45
Self Cites	2004	67
Self Cites	2005	39
Self Cites	2006	73
Self Cites	2007	74
Self Cites	2008	98
Self Cites	2009	120
Self Cites	2010	151
Self Cites	2011	329
Self Cites	2012	305
Self Cites	2013	364
Self Cites	2014	431
Self Cites	2015	340
Self Cites	2016	264
Self Cites	2017	210
Self Cites	2018	212
Self Cites	2019	207
Self Cites	2020	227
Self Cites	2021	245
Self Cites	2022	175
Self Cites	2023	172
Total Cites	1999	222
Total Cites	2000	206
Total Cites	2001	199
Total Cites	2002	209
Total Cites	2003	372
Total Cites	2004	399
Total Cites	2005	546
Total Cites	2006	822
Total Cites	2007	905
Total Cites	2008	1204
Total Cites	2009	1585
Total Cites	2010	2357
Total Cites	2011	3188
Total Cites	2012	4216
Total Cites	2013	5863
Total Cites	2014	6712
Total Cites	2015	5546
Total Cites	2016	4890
Total Cites	2017	4672
Total Cites	2018	3745
Total Cites	2019	3867
Total Cites	2020	4351
Total Cites	2021	5622
Total Cites	2022	6481
Total Cites	2023	6064

External Cites per Doc

Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

Cites	Year	Value
External Cites per document	1999	0.572
External Cites per document	2000	0.604
External Cites per document	2001	0.543
External Cites per document	2002	0.702
External Cites per document	2003	1.253
External Cites per document	2004	1.194
External Cites per document	2005	1.657
External Cites per document	2006	2.424
External Cites per document	2007	2.473
External Cites per document	2008	3.545
External Cites per document	2009	4.025
External Cites per document	2010	5.014
External Cites per document	2011	4.921
External Cites per document	2012	3.911
External Cites per document	2013	4.522
External Cites per document	2014	4.568
External Cites per document	2015	4.158
External Cites per document	2016	3.940
External Cites per document	2017	4.056
External Cites per document	2018	3.921
External Cites per document	2019	4.145
External Cites per document	2020	4.676
External Cites per document	2021	5.464
External Cites per document	2022	6.514
External Cites per document	2023	6.525
Cites per document	1999	0.766
Cites per document	2000	0.736
Cites per document	2001	0.711
Cites per document	2002	0.829
Cites per document	2003	1.425
Cites per document	2004	1.435
Cites per document	2005	1.784
Cites per document	2006	2.660
Cites per document	2007	2.693
Cites per document	2008	3.859
Cites per document	2009	4.354
Cites per document	2010	5.357
Cites per document	2011	5.487
Cites per document	2012	4.216
Cites per document	2013	4.822
Cites per document	2014	4.881
Cites per document	2015	4.430
Cites per document	2016	4.165
Cites per document	2017	4.247
Cites per document	2018	4.156
Cites per document	2019	4.379
Cites per document	2020	4.933
Cites per document	2021	5.713
Cites per document	2022	6.695
Cites per document	2023	6.715

% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

Year	International Collaboration
1999	8.43
2000	16.87
2001	16.28
2002	17.39
2003	21.00
2004	12.28
2005	23.16
2006	18.11
2007	21.11
2008	19.05
2009	18.72
2010	16.88
2011	16.96
2012	21.72
2013	24.87
2014	30.25
2015	25.51
2016	24.68
2017	25.82
2018	27.55
2019	28.57
2020	27.46
2021	31.92
2022	31.20
2023	33.47

Citable documents

Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Documents	Year	Value
Non-citable documents	1999	5
Non-citable documents	2000	4
Non-citable documents	2001	4
Non-citable documents	2002	4
Non-citable documents	2003	3
Non-citable documents	2004	2
Non-citable documents	2005	1
Non-citable documents	2006	2
Non-citable documents	2007	4
Non-citable documents	2008	6
Non-citable documents	2009	6
Non-citable documents	2010	3
Non-citable documents	2011	3
Non-citable documents	2012	9
Non-citable documents	2013	11
Non-citable documents	2014	12
Non-citable documents	2015	8
Non-citable documents	2016	8
Non-citable documents	2017	6
Non-citable documents	2018	3
Non-citable documents	2019	3
Non-citable documents	2020	3
Non-citable documents	2021	3
Non-citable documents	2022	5
Non-citable documents	2023	4
Citable documents	1999	285
Citable documents	2000	276
Citable documents	2001	276
Citable documents	2002	248
Citable documents	2003	258
Citable documents	2004	276
Citable documents	2005	305
Citable documents	2006	307
Citable documents	2007	332
Citable documents	2008	306
Citable documents	2009	358
Citable documents	2010	437
Citable documents	2011	578
Citable documents	2012	991
Citable documents	2013	1205
Citable documents	2014	1363
Citable documents	2015	1244
Citable documents	2016	1166
Citable documents	2017	1094
Citable documents	2018	898
Citable documents	2019	880
Citable documents	2020	879
Citable documents	2021	981
Citable documents	2022	963
Citable documents	2023	899

Cited documents

Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Documents	Year	Value
Uncited documents	1999	164
Uncited documents	2000	166
Uncited documents	2001	166
Uncited documents	2002	130
Uncited documents	2003	104
Uncited documents	2004	106
Uncited documents	2005	122
Uncited documents	2006	81
Uncited documents	2007	100
Uncited documents	2008	59
Uncited documents	2009	59
Uncited documents	2010	59
Uncited documents	2011	62
Uncited documents	2012	136
Uncited documents	2013	129
Uncited documents	2014	156
Uncited documents	2015	178
Uncited documents	2016	148
Uncited documents	2017	119
Uncited documents	2018	99
Uncited documents	2019	86
Uncited documents	2020	80
Uncited documents	2021	75
Uncited documents	2022	61
Uncited documents	2023	63
Cited documents	1999	126
Cited documents	2000	114
Cited documents	2001	114
Cited documents	2002	122
Cited documents	2003	157
Cited documents	2004	172
Cited documents	2005	184
Cited documents	2006	228
Cited documents	2007	236
Cited documents	2008	253
Cited documents	2009	305
Cited documents	2010	381
Cited documents	2011	519
Cited documents	2012	864
Cited documents	2013	1087
Cited documents	2014	1219
Cited documents	2015	1074
Cited documents	2016	1026
Cited documents	2017	981
Cited documents	2018	802
Cited documents	2019	797
Cited documents	2020	802
Cited documents	2021	909
Cited documents	2022	907
Cited documents	2023	840