受成土母质、发育过程、耕层地质、人为耕作的影响，不同土壤类型间有机质含

Affected by the parent material of the soil, the development process, the geology of the cultivated layer, and the artificial cultivation, the organic matter content of different soil types is quite different. The organic content of the Chao soil is the highest, with an average of 10.29g/kg; the organic content of the brown soil is the second, with an average content of 9.77g/kg. <br>The organic matter content of each sub-category in the brown soil is slightly different. The tidal brown soil has the highest organic matter content, with an average of 10.5g/kg, and the brown soil has the lowest, with an average content of 9.61g/kg. The organic matter content of each subtype in brown soil from high to low is as follows: tidal brown soil>white pulped brown soil>typical brown soil>brown soil. <br>The content of organic matter in two subgroups of Chao soil is not much different. The average content of Chao soil is 10.28g/kg and the average content of salinized Chao soil is 10.52g/kg. The subtypes of organic matter in Chao soil from high to low are: salinized Chao soil> Chao soil

The organic matter content varies greatly between soil types due to the influence of adult soil mother matter, development process, tillage geology and man-made farming. Tidal soil organic matter content is the highest, with an average of 10.29 g/kg, and brown soil organic matter content is second, with an average content of 9.77g/kg.<br>The content of subtypes of organic matter in brown soil was slightly different, the highest organic content of tidal brown soil was the highest, with an average of 10.5g/kg, and the lowest brown soil, with an average content of 9.61g/kg. The content of subcategory organic matter in brown soil is from high to low in order: tide brown soil and white-pulpized brown soil, typical brown soil, brown soil.<br>The organic content of the two subtypes of tide soil was not different, the average content of the tide soil was 10.28 g/kg, and the average content of the salted tide soil was 10.52 g/kg. The sub-organic matter in the tide soil is from high to low in order: salinized tide soil and tide soil

Due to the influence of parent material, development process, topsoil geology and artificial cultivation, the organic matter content of different soil types is quite different. The content of organic matter in fluvo aquic soil was the highest, with an average of 10.29g/kg, followed by brown soil with an average content of 9.77g/kg.<br>The content of organic matter in brown soil was slightly different. The content of organic matter in Chao brown soil was the highest, with an average of 10.5 g / kg, while that of brown soil was the lowest, with an average content of 9.61 g / kg. The order of organic matter content in brown soil was as follows: tidal brown soil > albic brown soil > typical brown soil > brown soil.<br>The average content of organic matter in the two types of fluvo aquic soil was 52.8 g / kg, with an average of 10.0 g / kg. The order of organic matter in the order from high to low is salinized fluvo aquic soil > fluvo aquic soil<br>