Laboratory optical measurements to assess long-term changes in water-extractable soil organic matter, U.S. Great Plains

Carbon (C) and nitrogen (N) extracted from soil with water are associated with available plant nutrients and microbial activity, but information about how C and N...采用水提法从土壤中提取的碳（Carbon，C）和氮（Nitrogen，N）与植物有效养分及微生物活动密切相关，但关于碳与氮如何……