College of Life Science, Northeast Agricultural University, Harbin 150030, China.
Environmental Monitoring Center of Heilongjiang Province, China.
Waste Manag. 2017 Dec;70:30-36. doi: 10.1016/j.wasman.2017.08.050. Epub 2017 Oct 12.
In order to improve soil quality, reduce wastes and mitigate climate change, it is necessary to understand the balance between soil organic carbon (SOC) accumulation and depletion under different organic waste compost amended soils. The effects of proportion (5%, 15%, 30%), compost type (sewage sludge (SS), tomato stem waste (TSW), municipal solid waste (MSW), kitchen waste (KW), cabbage waste (CW), peat (P), chicken manure (CM), dairy cattle manure (DCM)) and the black soil (CK). Their initial biochemical composition (carbon, nitrogen, C:N ratio) on carbon (C) mineralization in soil amended compost have been investigated. The CO-C production of different treatments were measured to indicate the levels of carbon (C) mineralization during 50d of laboratory incubation. And the one order E model (M1E) was used to quantify C mineralization kinetics. The results demonstrated that the respiration and C mineralization of soil were promoted by amending composts. The C mineralization ability increased when the percentage of compost added to the soil also increased and affected by compost type in the order CM>KW, CW>SS, DCM, TSW>MSW, P>CK at the same amended level. Based on the values of C and k from M1E model, a management method in agronomic application of compost products to the precise fertilization was proposed. The SS, DCM and TSW composts were more suitable in supplying fertilizer to the plant. Otherwise, The P and MSW composts can serve the purpose of long-term nutrient retention, whereas the CW and KW composts could be used as soil remediation agent.
为了提高土壤质量、减少废物排放和减缓气候变化，有必要了解不同有机废物堆肥改良土壤下土壤有机碳（SOC）积累和消耗的平衡。研究了比例（5%、15%、30%）、堆肥类型（污水污泥（SS）、番茄茎废物（TSW）、城市固体废物（MSW）、厨余垃圾（KW）、白菜废物（CW）、泥炭（P）、鸡粪（CM）、奶牛粪便（DCM））和黑土（CK）对土壤中添加堆肥后碳（C）矿化的影响。他们初始生化组成（碳、氮、C：N 比）对土壤添加堆肥中碳（C）矿化的影响进行了研究。测量了不同处理的 CO-C 产量，以指示 50d 实验室培养期间碳（C）矿化的水平。并采用一阶 E 模型（M1E）定量 C 矿化动力学。结果表明，堆肥的添加促进了土壤的呼吸和 C 矿化。随着添加到土壤中的堆肥比例的增加，C 矿化能力增加，受堆肥类型的影响，在相同添加水平下，按 CM>KW、CW>SS、DCM、TSW>MSW、P>CK 的顺序排列。基于 M1E 模型中 C 和 k 的值，提出了一种在农业应用中精确施肥的堆肥产品管理方法。SS、DCM 和 TSW 堆肥更适合为植物提供肥料。否则，P 和 MSW 堆肥可用于长期养分保留，而 CW 和 KW 堆肥可用于土壤修复剂。
