一、土壤有机质的函义、研究内容及研究意义(一)土壤有机质的函义和研究内容土壤有机质是泛指以各种形态和状态存在于土壤中的各种含碳有机化合物。具体地说,它包括动植物残体、微生物体以及这些生物残体的不同分解阶段的产物和由分解产物合成的有机质——碳水化合物、含 First, the meaning of the organic matter of the soil, research content and research significance (A) of the meaning and content of soil organic matter Soil organic matter is generally refers to a variety of forms and states exist in the soil of various carbon-containing organic compounds. Specifically, it includes animal and plant residues, microorganisms, and the products at different stages of decomposition of these biological residues and organic matter-carbohydrates synthesized from the decomposition products