Class information for:
Level 2: CARBON ISOTOPE DISCRIMINATION//GEOGRAPHICAL ORIGIN//SNIF NMR

Basic class information
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
3 4 GEOSCIENCES, MULTIDISCIPLINARY//GEOCHEMISTRY & GEOPHYSICS//METEOROLOGY & ATMOSPHERIC SCIENCES 1953906
25 3       FORESTRY//FOREST ECOLOGY AND MANAGEMENT//CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE 117839
2151 2             CARBON ISOTOPE DISCRIMINATION//GEOGRAPHICAL ORIGIN//SNIF NMR 5345
2378 1                   CARBON ISOTOPE DISCRIMINATION//TREE RINGS//CARBON ISOTOPE COMPOSITION 2299
10460 1                   SNIF NMR//IRMS//GEOGRAPHICAL ORIGIN 1091
10800 1                   WINE//WINE CLASSIFICATION//GEOGRAPHICAL ORIGIN 1062
14737 1                   N 15 NATURAL ABUNDANCE//DELTA N 15//NATURAL N 15 ABUNDANCE 781
35406 1                   ANIMALS WITH LOW OR HIGH RESISTANCE TO HYPOXIA//ANTIOXIDANTS WITH REDOX PROPERTIES//ASYMMETRIC CARBON CENTER 112

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 CARBON ISOTOPE DISCRIMINATION authKW 492378 3% 45% 186
2 GEOGRAPHICAL ORIGIN authKW 238143 2% 31% 130
3 SNIF NMR authKW 217970 1% 86% 43
4 TREE RINGS authKW 183805 4% 14% 220
5 IRMS authKW 146920 1% 37% 67
6 DELTA C 13 authKW 139057 3% 15% 163
7 CARBON ISOTOPE COMPOSITION authKW 137641 1% 40% 59
8 WATER USE EFFICIENCY authKW 112309 4% 8% 236
9 DELTA N 15 authKW 99506 2% 16% 107
10 LEAF WATER ENRICHMENT authKW 94313 0% 100% 16

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Food Science & Technology 13310 19% 0% 1012
2 Plant Sciences 6931 17% 0% 907
3 Forestry 6830 7% 0% 352
4 Chemistry, Analytical 5408 15% 0% 793
5 Chemistry, Applied 4823 10% 0% 513
6 Agriculture, Multidisciplinary 3918 6% 0% 321
7 Ecology 3165 10% 0% 519
8 Soil Science 3022 5% 0% 255
9 Agronomy 2591 6% 0% 342
10 Spectroscopy 2011 6% 0% 315

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 STABLE ISOTOPE RATIO IL ENVIRONM 87040 0% 62% 24
2 LAIEM 79670 0% 52% 26
3 UNITAT FISIOL VEGETAL 59317 1% 26% 39
4 ENVIRONM BIOL GRP 36778 1% 18% 34
5 ATMOSPHER CHEM STABLE ISOTOPES ECOSYST FLUX 34291 0% 73% 8
6 TREE RING 33693 1% 8% 68
7 LEHRSTUHL GRUNLANDLEHRE 33165 0% 22% 26
8 CHIM VINULUI 23578 0% 100% 4
9 FOOD AGR MAT INSPECT 21692 0% 41% 9
10 ANAL RIC 21049 0% 71% 5

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 41787 1% 10% 74
2 PLANT CELL AND ENVIRONMENT 26979 3% 3% 154
3 RAPID COMMUNICATIONS IN MASS SPECTROMETRY 22774 4% 2% 188
4 TREE PHYSIOLOGY 17078 2% 3% 102
5 OECOLOGIA 14523 3% 1% 168
6 AUSTRALIAN JOURNAL OF PLANT PHYSIOLOGY 8604 1% 3% 49
7 FOOD CHEMISTRY 8035 3% 1% 175
8 JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 7764 4% 1% 218
9 DENDROCHRONOLOGIA 7001 0% 6% 20
10 TREES-STRUCTURE AND FUNCTION 6381 1% 2% 52

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 CARBON ISOTOPE DISCRIMINATION 492378 3% 45% 186 Search CARBON+ISOTOPE+DISCRIMINATION Search CARBON+ISOTOPE+DISCRIMINATION
2 GEOGRAPHICAL ORIGIN 238143 2% 31% 130 Search GEOGRAPHICAL+ORIGIN Search GEOGRAPHICAL+ORIGIN
3 SNIF NMR 217970 1% 86% 43 Search SNIF+NMR Search SNIF+NMR
4 TREE RINGS 183805 4% 14% 220 Search TREE+RINGS Search TREE+RINGS
5 IRMS 146920 1% 37% 67 Search IRMS Search IRMS
6 DELTA C 13 139057 3% 15% 163 Search DELTA+C+13 Search DELTA+C+13
7 CARBON ISOTOPE COMPOSITION 137641 1% 40% 59 Search CARBON+ISOTOPE+COMPOSITION Search CARBON+ISOTOPE+COMPOSITION
8 WATER USE EFFICIENCY 112309 4% 8% 236 Search WATER+USE+EFFICIENCY Search WATER+USE+EFFICIENCY
9 DELTA N 15 99506 2% 16% 107 Search DELTA+N+15 Search DELTA+N+15
10 LEAF WATER ENRICHMENT 94313 0% 100% 16 Search LEAF+WATER+ENRICHMENT Search LEAF+WATER+ENRICHMENT

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.

Classes with closest relation at Level 2


rank cluster_id2 link
1 2759 DEUTERIUM EXCESS//OXYGEN 18//CLUMPED ISOTOPES
2 1685 SAP FLOW//TREE PHYSIOLOGY//TRANSPIRATION
3 2743 STABLE ISOTOPES//FOOD WEB//DELTA N 15
4 2294 C 4 PHOTOSYNTHESIS//CRASSULACEAN ACID METABOLISM//PHOSPHOENOLPYRUVATE CARBOXYLASE
5 2210 ELEVATED CO2//CO2 ENRICHMENT//ELEVATED CARBON DIOXIDE
6 3567 TEA INFUSION//KOHL//BHASMA
7 382 FORESTRY//FOREST ECOLOGY AND MANAGEMENT//CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE
8 435 SOIL SCIENCE//SOIL RESPIRATION//SOIL ORGANIC CARBON
9 2946 ACCELERATOR MASS SPECTROMETRY//RADIOCARBON//AMS
10 3010 TOTAL DIET STUDY//METALDEHYDE//DUPLICATE PORTION SAMPLING

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