Class information for:
Level 1: DELTA N 15//NATURAL N 15 ABUNDANCE//N 15 NATURAL ABUNDANCE

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
17187 612 46.0 69%


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
80 2             SOIL SCIENCE//SOIL BIOLOGY & BIOCHEMISTRY//SOIL RESPIRATION 27332
17187 1                   DELTA N 15//NATURAL N 15 ABUNDANCE//N 15 NATURAL ABUNDANCE 612

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 DELTA N 15 authKW 371985 11% 11% 70
2 NATURAL N 15 ABUNDANCE authKW 320724 2% 43% 15
3 N 15 NATURAL ABUNDANCE authKW 271390 4% 20% 27
4 NATURAL ABUNDANCE authKW 171506 3% 18% 19
5 SOIL DELTA N 15 authKW 149679 0% 100% 3
6 WOOD DECOMPOSING FUNGI authKW 149679 0% 100% 3
7 NITROGEN ISOTOPE RATIO authKW 114030 1% 29% 8
8 ERICOID MYCORRHIZAL authKW 99786 0% 100% 2
9 HEIHE ECOHYDROL RIVER BASIN SCI address 99786 0% 100% 2
10 MULGA ECOSYSTEM authKW 99786 0% 100% 2

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 10387 25% 0% 151
2 Ecology 3431 27% 0% 166
3 Plant Sciences 2784 30% 0% 185
4 Agronomy 1011 11% 0% 69
5 Environmental Sciences 546 16% 0% 97
6 Forestry 421 5% 0% 30
7 Agriculture, Multidisciplinary 211 4% 0% 26
8 Geosciences, Multidisciplinary 169 7% 0% 44
9 Archaeology 96 1% 0% 9
10 Biodiversity Conservation 93 2% 0% 13

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 HEIHE ECOHYDROL RIVER BASIN SCI 99786 0% 100% 2
2 COLORADO PLATEAU STABLE ISOTOPE 95942 1% 38% 5
3 SILVO GUYANE 56126 0% 38% 3
4 ADV PROTECTED CULTIVAT TEAM 49893 0% 100% 1
5 AGROSYST TROPICAUX UR1321 49893 0% 100% 1
6 AUSTRAL INTA CONICET 49893 0% 100% 1
7 BIOGEOCHEM ECOSYST FO TIERS 49893 0% 100% 1
8 BUZAN 49893 0% 100% 1
9 COLEGIADO ENGN FLO TAL 49893 0% 100% 1
10 COMMISS ECOL 49893 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 ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 21810 3% 2% 18
2 OECOLOGIA 11590 8% 0% 51
3 PLANT AND SOIL 9969 8% 0% 49
4 ECOSYSTEMS 4611 2% 1% 12
5 NEW PHYTOLOGIST 4148 5% 0% 28
6 BIOGEOCHEMISTRY 4055 2% 1% 14
7 SOIL BIOLOGY & BIOCHEMISTRY 3599 4% 0% 25
8 PLANT CELL AND ENVIRONMENT 2851 3% 0% 17
9 RAPID COMMUNICATIONS IN MASS SPECTROMETRY 2436 3% 0% 21
10 SOIL SCIENCE AND PLANT NUTRITION 1575 2% 0% 10

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 DELTA N 15 371985 11% 11% 70 Search DELTA+N+15 Search DELTA+N+15
2 NATURAL N 15 ABUNDANCE 320724 2% 43% 15 Search NATURAL+N+15+ABUNDANCE Search NATURAL+N+15+ABUNDANCE
3 N 15 NATURAL ABUNDANCE 271390 4% 20% 27 Search N+15+NATURAL+ABUNDANCE Search N+15+NATURAL+ABUNDANCE
4 NATURAL ABUNDANCE 171506 3% 18% 19 Search NATURAL+ABUNDANCE Search NATURAL+ABUNDANCE
5 SOIL DELTA N 15 149679 0% 100% 3 Search SOIL+DELTA+N+15 Search SOIL+DELTA+N+15
6 WOOD DECOMPOSING FUNGI 149679 0% 100% 3 Search WOOD+DECOMPOSING+FUNGI Search WOOD+DECOMPOSING+FUNGI
7 NITROGEN ISOTOPE RATIO 114030 1% 29% 8 Search NITROGEN+ISOTOPE+RATIO Search NITROGEN+ISOTOPE+RATIO
8 ERICOID MYCORRHIZAL 99786 0% 100% 2 Search ERICOID+MYCORRHIZAL Search ERICOID+MYCORRHIZAL
9 MULGA ECOSYSTEM 99786 0% 100% 2 Search MULGA+ECOSYSTEM Search MULGA+ECOSYSTEM
10 NATURAL ABUNDANCE OF N 15 DELTA N 15 99786 0% 100% 2 Search NATURAL+ABUNDANCE+OF+N+15+DELTA+N+15 Search NATURAL+ABUNDANCE+OF+N+15+DELTA+N+15

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 SZPAK, P , (2014) COMPLEXITIES OF NITROGEN ISOTOPE BIOGEOCHEMISTRY IN PLANT-SOIL SYSTEMS: IMPLICATIONS FOR THE STUDY OF ANCIENT AGRICULTURAL AND AN MAL MANAGEMENT PRACTICES.FRONTIERS IN PLANT SCIENCE. VOL. 5. ISSUE . P. - 75 43% 19
2 MAKAROV, MI , (2009) THE NITROGEN ISOTOPIC COMPOSITION IN SOILS AND PLANTS: ITS USE IN ENVIRONMENTAL STUDIES (A REVIEW).EURASIAN SOIL SCIENCE. VOL. 42. ISSUE 12. P. 1335-1347 51 70% 15
3 FANG, YT , KOBA, K , YOH, M , MAKABE, A , LIU, XY , (2013) PATTERNS OF FOLIAR DELTA N-15 AND THEIR CONTROL IN EASTERN ASIAN FORESTS.ECOLOGICAL RESEARCH. VOL. 28. ISSUE 5. P. 735-748 47 68% 2
4 HOBBIE, EA , HOGBERG, P , (2012) NITROGEN ISOTOPES LINK MYCORRHIZAL FUNGI AND PLANTS TO NITROGEN DYNAMICS.NEW PHYTOLOGIST. VOL. 196. ISSUE 2. P. 367 -382 56 45% 75
5 CRAINE, JM , BROOKSHIRE, ENJ , CRAMER, MD , HASSELQUIST, NJ , KOBA, K , MARIN-SPIOTTA, E , WANG, LX , (2015) ECOLOGICAL INTERPRETATIONS OF NITROGEN ISOTOPE RATIOS OF TERRESTRIAL PLANTS AND SOILS.PLANT AND SOIL. VOL. 396. ISSUE 1-2. P. 1 -26 63 36% 18
6 CHOI, WJ , KWAK, JH , LIM, SS , PARK, HJ , CHANG, SX , LEE, SM , ARSHAD, MA , YUN, SI , KIM, HY , (2017) SYNTHETIC FERTILIZER AND LIVESTOCK MANURE DIFFERENTLY AFFECT DELTA N-15 IN THE AGRICULTURAL LANDSCAPE: A REVIEW.AGRICULTURE ECOSYSTEMS & ENVIRONMENT. VOL. 237. ISSUE . P. 1 -15 49 52% 0
7 WANG, A , FANG, YT , CHEN, DX , KOBA, K , MAKABE, A , LI, YD , LUO, TS , YOH, M , (2014) VARIATIONS IN NITROGEN-15 NATURAL ABUNDANCE OF PLANT AND SOIL SYSTEMS IN FOUR REMOTE TROPICAL RAINFORESTS, SOUTHERN CHINA.OECOLOGIA. VOL. 174. ISSUE 2. P. 567-580 34 74% 3
8 HOGBERG, P , JOHANNISSON, C , HOGBERG, MN , (2014) IS THE HIGH N-15 NATURAL ABUNDANCE OF TREES IN N-LOADED FORESTS CAUSED BY AN INTERNAL ECOSYSTEM N ISOTOPE REDISTRIBUTION OR A CHANGE IN THE ECOSYSTEM N ISOTOPE MASS BALANCE?.BIOGEOCHEMISTRY. VOL. 117. ISSUE 2-3. P. 351-358 29 73% 6
9 CRAINE, JM , ELMORE, AJ , AIDAR, MPM , BUSTAMANTE, M , DAWSON, TE , HOBBIE, EA , KAHMEN, A , MACK, MC , MCLAUCHLAN, KK , MICHELSEN, A , ET AL (2009) GLOBAL PATTERNS OF FOLIAR NITROGEN ISOTOPES AND THEIR RELATIONSHIPS WITH CLIMATE, MYCORRHIZAL FUNGI, FOLIAR NUTRIENT CONCENTRATIONS, AND NITROGEN AVAILABILITY.NEW PHYTOLOGIST. VOL. 183. ISSUE 4. P. 980 -992 32 51% 239
10 KAHMEN, A , WANEK, W , BUCHMANN, N , (2008) FOLIAR DELTA N-15 VALUES CHARACTERIZE SOIL N CYCLING AND REFLECT NITRATE OR AMMONIUM PREFERENCE OF PLANTS ALONG A TEMPERATE GRASSLAND GRADIENT.OECOLOGIA. VOL. 156. ISSUE 4. P. 861-870 29 73% 68

Classes with closest relation at Level 1


Rank Class id link
1 11442 CARBON ISOTOPE DISCRIMINATION//CARBON ISOTOPE COMPOSITION//WATER USE EFFICIENCY
2 6719 N 2 FIXATION//N 15 NATURAL ABUNDANCE//NDFA
3 17474 ORGANIC NITROGEN//SOIL AMINO ACIDS//ORGANIC N
4 5520 NITRATE ISOTOPES//NITRATE SOURCES//NITRATE
5 22172 ORNITHOGENIC TUNDRA//WESTLAND PETREL//PL SCI ALLIED HLTH
6 8066 NUTRIENT RESORPTION//RESORPTION EFFICIENCY//RESORPTION PROFICIENCY
7 5319 TREE RINGS//LEAF WATER ENRICHMENT//STABLE ISOTOPE RATIO IL ENVIRONM
8 26014 FEATHER MOSSES//PLEUROZIUM SCHREBERI//BIOL PROBLEMS CRYOLITHZONE
9 6310 NITROGEN SATURATION//N SATURATION//NITROGEN DEPOSITION
10 7687 GROSS NITRIFICATION//NITRIFICATION//N 15 TRACING

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