zinke_readme.txt 6/21/04 DATASET TITLE: WORLDWIDE ORGANIC SOIL CARBON AND NITROGEN DATA CONTRIBUTOR(S): P.J. ZINKE A.G. STANGENBERGER DEPARTMENT OF FORESTRY AND RESOURCE MANAGEMENT UNIVERSITY OF CALIFORNIA BERKELEY, CALIFORNIA 94720 W.M. POST W.R. EMANUEL J.S. OLSON ENVIRONMENTAL SCIENCES DIVISION OAK RIDGE NATIONAL LABORATORY OAK RIDGE, TENNESSEE 37831 ---------------------------------------------------------------------- FILE LISTING: COMPANION FILES: ZINKE_README.TXT (THIS FILE) DATA FILES: ZINKE_SOIL.TXT - ORIGINAL DATA FILE IN FIXED VARIABLE LENGTH FORMAT. ZINKE_SHAPEFILE.TAR.GZ - ZINKE_SOIL.TXT in ESRI SHAPEFILE FORMAT. COMPRESSED TAR ARCHIVE INCLUDES ALL SHAPEFILE COMPONENTS. ZINKE_SOIL.E00.GZ - ZINKE_SOIL.TXT in ESRI INTERCHANGE FORMAT (*E00). FILE CAN BE IMPORTED INTO ARC/INFO or ARC GIS. ---------------------------------------------------------------------- SCOPE OF THE DATA: A COMPILATION OF WORLDWIDE SOIL CARBON AND NITROGEN DATA FOR MORE THAN 3500 SOIL PROFILES ARE PROVIDED. THE DATA WERE OBTAINED FROM SOIL SURVEYS BY ZINKE (1965, 1974, 1976, 1978, 1979, AND 1984) AND SOIL SURVEY LITERATURE. THE MAIN SAMPLES FOR LABORATORY ANALYSES WERE COLLECTED AT UNIFORM SOIL INCREMENTS AND INCLUDED BULK DENSITY DETERMINATIONS. MANY SAMPLES REPORTED IN THE SURVEY LITERATURE DID NOT HAVE UNIFORM SOIL INCREMENTS OR BULK DENSITY DETERMINATIONS. ONLY SOIL PROFILES THAT HAD BEEN SAMPLED EITHER TO A METER IN DEPTH OR TO ACTUAL DEPTH WERE INCLUDED IN THIS DATA BASE FROM SOIL SURVEY LITERATURE. IN LITERATURE WHERE BULK DENSITIES WERE ABSENT, DENSITIES WERE ESTIMATED BY REGRESSIONS BASED ON ORGANIC CARBON CONTENT OF THE SOIL SAMPLES ASSOCIATED WITH THE PROFILE USING 1800 SOIL PROFILES FOR WHICH BULK DENSITIES WERE KNOWN. ---------------------------------------------------------------------- DATA FORMAT: THIS DATA SET ORIGINALLY INCLUDED FOUR ASCII FILES: A DOCUMENTATION FILE (THIS FILE), FORTRAN AND SAS RETRIEVAL CODES TO READ AND PRINT THE DATA FILE CONTAINING THE SOIL CARBON AND NITROGEN DATA, AND THE DATA FILE ITSELF. AS A SERVICE TO OUR USERS, THE ORNL DAAC HAS PROVIDED THIS DATA IN ESRI SHAPEFILE FORMAT. THE SAS AND FORTRAN CODES USED FOR READING THE ASCII DATA ARE NOW APPENDED TO THIS DOCUMENTATION FILE. THESE DATA FILES CONTAIN THE SOIL PROFILE NUMBER AND LOCATION; CARBON (KG/M2) AND NITROGEN (G/M2) CONTENT; SAMPLE SITE LATITUDE, LONGITUDE, AND ELEVATION (METERS); AND SAMPLE PROFILE CLASSIFICATION BY HOLDRIDGE LIFE ZONE, OLSON ECOSYSTEM TYPE (OLSON ET. AL. 1983), AND PARENT MATERIAL. EXAMPLE TAKEN FROM ASCII FILE (ZINKE_SOIL.TXT): VARIABLE BEGINNING ENDING VARIABLE TYPE COLUMN COLUMN PROFILE ALPHANUMERIC 1 22 CARBON REAL 23 29 NITROGEN REAL 31 38 LAT ALPHANUMERIC 41 46 LONG ALPHANUMERIC 50 55 ELEV ALPHANUMERIC 57 61 SOURCE INTEGER 63 68 HOLDRIDGE CHARACTER 72 72 OLSON INTEGER 74 75 PARENT ALPHANUMERIC 76 79 ---------------------------------------------------------------------- REFERENCES OLSON, J.S., J.A. WATTS, AND L.J. ALLISON. 1983. CARBON IN LIVE VEGETATION OF MAJOR WORLD ECOSYSTEMS. ORNL-5862, OAK RIDGE NATIONAL LABORATORY, OAK RIDGE, TENNESSEE. POST, W.M., W.R. EMANUEL, P.J. ZINKE, A. G. STANGENBERGER. 1982. SOIL CARBON POOLS AND WORLD LIFE ZONES. NATURE 298:156-159. POST, W.M., J. PASTOR, P.J. ZINKE, AND A.G. STANGENBERGER. 1985. GLOBAL PATTERNS OF SOIL NITROGEN STORAGE. NATURE 317: 613-616. ZINKE, P.J. 1965. MEDITTERRANEAN ANALOGS OF CALIFORNIA VEGETATION TYPES. U.S. ARMY NATIONAL LAB. PROJECT IK025001A129. ZINKE, P.J. 1974. EFFECTS OF HERBICIDES ON SOILS OF SOUTH VIETNAM. PART B: THE EFFECTS OF HERBICIDES IN SOUTH VIETNAM. NATIONAL ACADEMY OF SCIENCES, WASHINGTON, D.C. ZINKE, P.J. 1976. THE BANYAN TREES OF KISH ISLAND, IRAN. KISH ISLAND DEVELOPMENT CORP., TEHRAN, IRAN. ZINKE, P.J., S. SABHASRI, AND P. KUNDSTADTER. 1978. SOIL FERTILITY ASPECTS OF THE LUA' FOREST FOLLOW SYSTEM OF SHIFTING CULTIVATION. PP. 134-159. IN: FARMERS IN THE FOREST. EAST WEST CENTER, UNIV. HAWAII, HONOLULU. ZINKE, P.J., A.G. STRANGENBERGER, AND W. COLWELL. 1979. THE FERTILITY OF THE FOREST. CALIF. AGRIC. 33: 10-11. ZINKE, P.J., A.G. STRANGENBERGER, W.M. POST, W.R. EMANUEL, AND J.S. OLSON. 1984. WORLDWIDE ORGANIC SOIL CARBON AND NITROGEN DATA. ORNL/TM-8857. OAK RIDGE NATIONAL LABORATORY, OAK RIDGE, TENNESSEE, 37831. ---------------------------------------------------------------------- FORTRAN CODE FOR READING ZINKE_SOIL.TXT CHARACTER PROFILE*22,LAT*6,LONG*6,ELEV*5,HOLDRIGE*1,OLSON*2, 1 PARENT*4 INTEGER SOURCE REAL CARBON,NITROGEN OPEN(UNIT=5,FILE='ndp018.dat') OPEN(UNIT=6) 1 CONTINUE READ(5,10,END=99) PROFILE,CARBON,NITROGEN,LAT,LONG,ELEV, 1 SOURCE,HOLDRIGE,OLSON,PARENT 10 FORMAT(A22,F7.1,1X,F8.0,2X,A6,3X,A6,1X,A5,1X,I6, 1 3X,A1,1X,A2,A4) WRITE(6,20) PROFILE,CARBON,NITROGEN,LAT,LONG,ELEV,SOURCE, 1 HOLDRIGE,OLSON,PARENT 20 FORMAT(A22,F7.1,1X,F8.0,2X,A6,3X,A6,1X,A5,1X,I6, 1 3X,A1,1X,A2,A4) GO TO 1 99 CONTINUE CLOSE(UNIT=5) CLOSE(UNIT=6) STOP END ---------------------------------------------------------------------- SAS CODE FOR READING ZINKE_SOIL.TXT data soil; infile 'a:ndp018.dat' missover; input @1 profile $char22. carbon 23-29 @30 nitrogen $char9. @41 lat $char6. @50 long $char6. elev 57-61 source 63-68 holdrige $ 72 olson 74-75 @76 parent $char4.; proc print; run;