TY  - Data
T1  - Based on the world soil database (hwsd) Jinghe River basin soil data set (1995)
A1  - Zhang yaonan
DO  - 10.12072/ncdc.JRiver.db1983.2022
PY  - 2022
DA  - 2022-04-08
PB  - National Cryosphere Desert Data Center
AB  - The data comes from the harmonized world soil database version 1.2 (hwsd) built by FAO and IIASA The data source in China is the 1:1 million soil data provided by Nanjing Soil Institute of the second national land survey. The adopted soil classification system is mainly fao-90.  unique verification identifier of core soil system unit:   MU_ Global-hwsd database soil mapping unit identifier, connecting GIS layers.   MU_ Source1 and mu_ Source2 - source database mapping unit identifier    SEQ - sequence of soil units in the composition of soil mapping units;   the soil classification system uses fao-7 classification system or fao-90 classification system (su_sym74 resp. Su_sym90) or fao-85 (su_sym85)   the main fields of the soil attribute table include:    ID (database ID)   MU_ Global (soil unit identifier) (global)   SU_ Symbol soil mapping unit   SU_ Sym74 (fao74 classification);   SU_ Sym85 (fao85 classification);   SU_ Sym90 (soil name in FAO 90 soil classification system);   SU_ Code soil mapping unit code   SU_ Code74 name of soil unit   SU_ Soil unit name   SU_ Code90 soil unit name drainage (19.5);   REF_ Depth (soil reference depth);   AWC_ CLASS(19.5);   AWC_ Class (soil available water content);   Phase1: real;    Phase2: string (soil phase);   roots: string (depth classification of obstacles to the soil bottom);    SWR: string (soil water content characteristics);   ADD_ Prop: real (specific soil type related to agricultural use in soil unit);   T_ Texture (top soil texture);   T_ Gravel: real (volume percentage of top gravel);   T_ Sand: real (top sand content);   T_ Sit: real (content of silty sand on the surface);   T_ Clay: real (clay content in the top layer);   T_ USDA_ Tex: real (top USDA soil texture classification);   T_ REF_ Bulk: real (top soil bulk density);   T_ OC: real (top organic carbon content);   T_ PH_ H2O: real (top pH);   T_ CEC_ Clay: real (cation exchange capacity of top cohesive layer soil);   T_ CEC_ Soil: real (cation exchange 
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/9c7ea208-c9dc-40b9-ac40-d149fdbc8e6e
ER  -