{"parameter":"AWC_CLASS","subset":"","description":"Available water storage capacity","units":"Coded values 1 through 7"}
{"parameter":"ISSOIL","subset":"","description":"Soil or non-soil units","units":"0 or 1"}
{"parameter":"MU_GLOBAL","subset":"","description":"HWSD global mapping unit identifier","units":"numerical ID"}
{"parameter":"REF_DEPTH","subset":"","description":"Reference soil depth","units":"cm"}
{"parameter":"ROOTS","subset":"","description":"Depth of obstacles to roots","units":"Coded values 0 through 6"}
{"parameter":"T_BULK_DEN","subset":"","description":"Topsoil bulk density","units":"kg dm-3 "}
{"parameter":"S_BULK_DEN","subset":"","description":"Subsoil bulk density","units":"kg dm-3"}
{"parameter":"T_REF_BULK","subset":"","description":"topsoil bulk density","units":"kg dm-3"}
{"parameter":"S_REF_BULK","subset":"","description":"Subsoil reference bulk density","units":"kg dm-3 "}
{"parameter":"T_CEC_CLAY","subset":"","description":"Cation exchange capacity of the clay fraction in the topsoil","units":"cmol per kg "}
{"parameter":"S_CEC_CLAY","subset":"","description":"Cation exchange capacity of the clay fraction in the subsoil","units":"cmol per kg"}
{"parameter":"T_CLAY","subset":"","description":"Topsoil clay fraction","units":"% weight"}
{"parameter":"S_CLAY","subset":"","description":"Subsoil clay fraction","units":"% weight"}
{"parameter":"T_GRAVEL","subset":"","description":"Topsoil gravel content","units":"% volume "}
{"parameter":"S_GRAVEL","subset":"","description":"Subsoil gravel content","units":"% volume"}
{"parameter":"T_SAND","subset":"","description":"Topsoil sand fraction","units":"% weight"}
{"parameter":"S_SAND","subset":"","description":"Subsoil sand fraction","units":"% weight"}
{"parameter":"T_SILT","subset":"","description":"Topsoil silt fraction","units":"% weight"}
{"parameter":"S_SILT","subset":"","description":"Subsoil silt fraction","units":"% weight"}
{"parameter":"T_PH_H2O","subset":"","description":"Topsoil pH (in H2O)","units":"-log(H+)"}
{"parameter":"S_PH_H2O","subset":"","description":"Subsoil pH (in water)","units":"-log(H+)"}
{"parameter":"T_C","subset":"","description":"Topsoil carbon content","units":"kg C m-2"}
{"parameter":"S_C","subset":"","description":"Dominant soil type subsoil carbon content","units":"kg C m-2 "}
{"parameter":"T_OC","subset":"","description":"Topsoil organic carbon","units":"% weight"}
{"parameter":"S_OC","subset":"","description":"Subsoil organic carbon","units":"% weight"}
{"parameter":"AWT_S_SOC","subset":"SUM_s_c_1","description":"Area weighted subsoil carbon content","units":"kg C m-2"}
{"parameter":"AWT_T_SOC","subset":"SUM_t_c_12","description":"Area weighted topsoil carbon content","units":"kg C m-2"}
{"parameter":"HWSD_SOIL_CLM_RES","subset":"AWT_SOC","description":"Area-weighted soil organic carbon content","units":"kg C m-2 "}
{"parameter":"HWSD_SOIL_CLM_RES","subset":"BULK_DEN","description":"Soil bulk density","units":"kg dm-3 "}
{"parameter":"HWSD_SOIL_CLM_RES","subset":"DOM_MU","description":"Dominant mapping unit ID from HWSD (MU_GLOBAL above)","units":"  "}
{"parameter":"HWSD_SOIL_CLM_RES","subset":"DOM_SOC","description":"Dominant soil mapping unit soil organic carbon content (T_C & S_C above)","units":"kg C m-2 "}
{"parameter":"HWSD_SOIL_CLM_RES","subset":"PCT_CLAY","description":"Soil clay fraction by percent weight","units":"% "}
{"parameter":"HWSD_SOIL_CLM_RES","subset":"PCT_SAND","description":"Soil sand fraction by percent weight","units":"% "}
{"parameter":"HWSD_SOIL_CLM_RES","subset":"PH","description":"Soil pH in water for the dominant mapping unit","units":"-log(H+) "}
{"parameter":"HWSD_SOIL_CLM_RES","subset":"REF_BULK","description":"Soil reference bulk density","units":"kg dm-3 "}