Class information for:
Level 1: DRY COMBUSTION//WALKLEY BLACK METHOD//WALKLEY BLACK

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
28329 209 24.5 42%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
4 4 ENVIRONMENTAL SCIENCES//GEOSCIENCES, MULTIDISCIPLINARY//METEOROLOGY & ATMOSPHERIC SCIENCES 1766162
65 3       SOIL SCIENCE//SOIL SCIENCE SOCIETY OF AMERICA JOURNAL//GEODERMA 84825
4161 2             DRY COMBUSTION//JOURNAL OF THE ASSOCIATION OF PUBLIC ANALYSTS//WALKLEY BLACK METHOD 519
28329 1                   DRY COMBUSTION//WALKLEY BLACK METHOD//WALKLEY BLACK 209

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 DRY COMBUSTION authKW 2010641 8% 81% 17
2 WALKLEY BLACK METHOD authKW 850046 4% 73% 8
3 WALKLEY BLACK authKW 751382 3% 86% 6
4 LOSS ON IGNITION authKW 458924 8% 18% 17
5 CALCIMETER authKW 292205 1% 100% 2
6 THERMAL GRADIENT ANALYSIS authKW 292205 1% 100% 2
7 WALKLEY AND BLACK METHOD authKW 292205 1% 100% 2
8 WALKLEY BLACK TITRATION authKW 292205 1% 100% 2
9 WEIGHT LOSS ON IGNITION authKW 292205 1% 100% 2
10 WET COMBUSTION authKW 262982 1% 60% 3

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Soil Science 16387 53% 0% 110
2 Agronomy 3122 33% 0% 68
3 Chemistry, Analytical 1362 35% 0% 73
4 Plant Sciences 1043 32% 0% 66
5 Oceanography 250 8% 0% 17
6 Limnology 195 4% 0% 8
7 Environmental Sciences 126 13% 0% 28
8 Water Resources 63 5% 0% 11
9 Geosciences, Multidisciplinary 57 7% 0% 15
10 Agriculture, Multidisciplinary 42 3% 0% 7

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ALTITUDE ECOSYST DYNAM 146102 0% 100% 1
2 CNRS CREMA LHOUMEAU CASE 5 146102 0% 100% 1
3 DEP SOIL MANAGEMENT CONSERVAT 146102 0% 100% 1
4 ESTN EXPT NORTE 146102 0% 100% 1
5 LANDESAMT BERGBAU ENERGIE GEOL LBEG 146102 0% 100% 1
6 O SEP 146102 0% 100% 1
7 OFF COORDINAT CLIMATE CHANGE OBSERVAT 146102 0% 100% 1
8 PROGRAMA POS UCACAO CIENCIA SOLO 146102 0% 100% 1
9 SCITAN THINH WARD 146102 0% 100% 1
10 SOIL PROJECT 146102 0% 100% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS 76620 29% 1% 60
2 SOIL RESEARCH 2705 1% 1% 3
3 CANADIAN JOURNAL OF SOIL SCIENCE 2150 3% 0% 6
4 GREEN MATERIALS 1895 0% 1% 1
5 MARINE CHEMISTRY 1690 3% 0% 6
6 REVISTA BRASILEIRA DE CIENCIA DO SOLO 1612 2% 0% 5
7 SCIENTIA AGRICOLA 1178 1% 0% 3
8 SOIL USE AND MANAGEMENT 891 1% 0% 3
9 SOIL SCIENCE SOCIETY OF AMERICA JOURNAL 762 3% 0% 7
10 LIMNOLOGY AND OCEANOGRAPHY-METHODS 724 1% 0% 2

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 DRY COMBUSTION 2010641 8% 81% 17 Search DRY+COMBUSTION Search DRY+COMBUSTION
2 WALKLEY BLACK METHOD 850046 4% 73% 8 Search WALKLEY+BLACK+METHOD Search WALKLEY+BLACK+METHOD
3 WALKLEY BLACK 751382 3% 86% 6 Search WALKLEY+BLACK Search WALKLEY+BLACK
4 LOSS ON IGNITION 458924 8% 18% 17 Search LOSS+ON+IGNITION Search LOSS+ON+IGNITION
5 CALCIMETER 292205 1% 100% 2 Search CALCIMETER Search CALCIMETER
6 THERMAL GRADIENT ANALYSIS 292205 1% 100% 2 Search THERMAL+GRADIENT+ANALYSIS Search THERMAL+GRADIENT+ANALYSIS
7 WALKLEY AND BLACK METHOD 292205 1% 100% 2 Search WALKLEY+AND+BLACK+METHOD Search WALKLEY+AND+BLACK+METHOD
8 WALKLEY BLACK TITRATION 292205 1% 100% 2 Search WALKLEY+BLACK+TITRATION Search WALKLEY+BLACK+TITRATION
9 WEIGHT LOSS ON IGNITION 292205 1% 100% 2 Search WEIGHT+LOSS+ON+IGNITION Search WEIGHT+LOSS+ON+IGNITION
10 WET COMBUSTION 262982 1% 60% 3 Search WET+COMBUSTION Search WET+COMBUSTION

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 PRIBYL, DW , (2010) A CRITICAL REVIEW OF THE CONVENTIONAL SOC TO SOM CONVERSION FACTOR.GEODERMA. VOL. 156. ISSUE 3-4. P. 75-83 21 84% 83
2 SZAVA-KOVATS, R , (2009) RE-ANALYSIS OF THE RELATIONSHIP BETWEEN ORGANIC CARBON AND LOSS-ON-IGNITION IN SOIL.COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS. VOL. 40. ISSUE 17-18. P. 2712-2724 17 94% 4
3 WANG, XJ , WANG, JP , ZHANG, J , (2012) COMPARISONS OF THREE METHODS FOR ORGANIC AND INORGANIC CARBON IN CALCAREOUS SOILS OF NORTHWESTERN CHINA.PLOS ONE. VOL. 7. ISSUE 8. P. - 17 81% 10
4 MEERSMANS, J , VAN WESEMAEL, B , VAN MOLLE, M , (2009) DETERMINING SOIL ORGANIC CARBON FOR AGRICULTURAL SOILS: A COMPARISON BETWEEN THE WALKLEY & BLACK AND THE DRY COMBUSTION METHODS (NORTH BELGIUM).SOIL USE AND MANAGEMENT. VOL. 25. ISSUE 4. P. 346 -353 16 84% 29
5 BISUTTI, I , HILKE, I , RAESSLER, M , (2004) DETERMINATION OF TOTAL ORGANIC CARBON - AN OVERVIEW OF CURRENT METHODS.TRAC-TRENDS IN ANALYTICAL CHEMISTRY. VOL. 23. ISSUE 10-11. P. 716-726 26 53% 86
6 SUTHERLAND, RA , (1998) LOSS-ON-IGNITION ESTIMATES OF ORGANIC MATTER AND RELATIONSHIPS TO ORGANIC CARBON IN FLUVIAL BED SEDIMENTS.HYDROBIOLOGIA. VOL. 389. ISSUE 1-3. P. 153-167 25 61% 58
7 BAHADORI, M , TOFIGHI, H , (2016) A MODIFIED WALKLEY-BLACK METHOD BASED ON SPECTROPHOTOMETRIC PROCEDURE.COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS. VOL. 47. ISSUE 2. P. 213 -220 10 100% 0
8 CHATTERJEE, A , LAL, R , WIELOPOLSKI, L , MARTIN, MZ , EBINGER, MH , (2009) EVALUATION OF DIFFERENT SOIL CARBON DETERMINATION METHODS.CRITICAL REVIEWS IN PLANT SCIENCES. VOL. 28. ISSUE 3. P. 164 -178 23 45% 48
9 HOOGSTEEN, MJJ , LANTINGA, EA , BAKKER, EJ , GROOT, JCJ , TITTONELL, PA , (2015) ESTIMATING SOIL ORGANIC CARBON THROUGH LOSS ON IGNITION: EFFECTS OF IGNITION CONDITIONS AND STRUCTURAL WATER LOSS.EUROPEAN JOURNAL OF SOIL SCIENCE. VOL. 66. ISSUE 2. P. 320 -328 11 73% 9
10 WANG, JP , WANG, XJ , ZHANG, J , (2013) EVALUATING LOSS-ON-IGNITION METHOD FOR DETERMINATIONS OF SOIL ORGANIC AND INORGANIC CARBON IN ARID SOILS OF NORTHWESTERN CHINA.PEDOSPHERE. VOL. 23. ISSUE 5. P. 593 -599 15 60% 2

Classes with closest relation at Level 1


Rank Class id link
1 24496 JOURNAL OF THE ASSOCIATION OF PUBLIC ANALYSTS//KJELDAHL METHOD//DUMAS METHOD
2 945 SOIL ORGANIC CARBON//CARBON SEQUESTRATION//SOIL CARBON
3 36333 SCATCHARD PLOT ANALYSIS//IMMOBILIZED HUMIC ACID//RATE CONTROL STEP
4 3098 DENSITY FRACTIONATION//SOIL ORGANIC MATTER//MICROBIAL RESIDUES
5 22969 HIGH TEMPERATURE CATALYTIC OXIDATION//DISSOLVED ORGANIC NITROGEN DON//DISSOLVED ORGANIC NITROGEN
6 4803 BRUCE E BUTLER//SOIL SPECTROSCOPY//SOIL REFLECTANCE
7 6106 REVISTA BRASILEIRA DE CIENCIA DO SOLO//SOLOS//NO TILLAGE
8 35376 RANGE EXTENSIONS//NORMAN WELLS PIPELINE//PROGRAM ENVIRONM HLTH
9 36828 ALTO MOTATAN//GRP INVEST SUELOS AGUAS//PEDOGEOMORPHOLOGICAL
10 27379 TROPICAL PEATLAND//TROPICAL PEAT//CIMTROP

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