College of Urban and Environmental Sciences;
Northwest University;
Shaanxi Land Construction Group;
Shaanxi LCG Land Project Technology Institute;
Key Laboratory of Degraded and Unused Land Consolidation Engineering;
the Ministry of Land and Resources of China;
Institute of Agricultural Resources and Environment;
Ningxia Academy of Agriculture and Forestry Sciences;
College of Agronomy;
Northwest A&F University;
dissolved; organic; C; labile; organic; C; light; fraction; organic; C; microbial; biomass; C; particulate; organic; C;