农田土壤有机碳管理与有机质平衡算法

张维理,KOLBEH,张认连,冀宏杰

Soil Organic Carbon Management and Farmland Organic Matter Balance Method

WeiLi ZHANG,H KOLBE,RenLian ZHANG,HongJie JI

表1 长期试验中通过实测和有机质平衡计算获得的最佳施肥处理的有机质需求量

Table 1 Humus requirements measured and derived by balance calculation from optimal fertilization treatments of long-term experiments

试验所在地 Experiment site 起始年份 Starting year 有机物质量 OM (t·hm-2·a-1) 实测值 Measured 平衡计算 Balanced Bad Lauchstädt[19] 1902/1978 10 13 Methau[20] 1966 10 13 Spröda[20] 1966 10 13 Müncheberg[21] 1962 8 13 Braunschweig 1952 10 13 Groß Kreutz[22,23,24] 1967 10-15 13 Thyrow[25] 1938 10 10.2 Speyer[26] 1958/1983 15 12.7 中间值 Median 10.7 12.6