不同类型耕作土壤可剥离厚度研究

Study on Soil Stripped Thickness of Different Types Arable Land

为了进行有效的耕地表土剥离,以安徽省为调查区域,主要调查的土壤类型有淮河平原区的黑姜土、黄姜土、白姜土、面砂土、两合土、淤土,江淮丘陵区的李岗马肝土、马肝田、黄白土田,沿江平原区的潮砂泥田、菜园泥骨土,皖南丘陵山地的泥质田、紫砂泥田.研究表明,淮河平原区耕种土壤砂姜黑土的耕作层厚度为15 ～20 cm,土壤可剥离的厚度为20～25 cm;淮河平原耕种土壤潮土的耕作层厚度为15 ～20 cm,土壤可剥离的厚度为30～40 cm;江淮丘陵区耕种土壤的平均耕作层厚度为15～20 cm,土壤可剥离的厚度为25～30cm;沿江平原区耕种土壤的平均耕作层厚度为15 ～20 cm,土壤可剥离的厚度为25 ～35 cm;皖南丘陵山地耕种土壤的平均耕作层厚度为15 ～20 cm,土壤可剥离的厚度为20 ～25 cm.

In order to effectively conduct cultivated land topsoil stripping,taking Anhui Province as the research area,the main types of soil include Heijiang soil,Huangjiang soil,Baijiang soil,Miansha soil,Lianghe soil,Yu soil in Huai River plain; Ligang Magan soil,Magan field,Huangbai field in Jianghuai hilly area; Chaosha mud field,garden soil in Yanjiang plain area; shale field,violet arenaceous mud field in south Anhui hilly area.It can be concluded that the thickness of tillage layer of Shajiang black soil is 15-20 cm,soil stripped thickness is 20-25 cm in Huaihe River plain; the tillage layer thickness of Chao soil is 15-20 cm,soil stripped thickness is 30-40 cm in Huai River plain area; the average thillage layer thickness is 15-20 cm,soil stripped thickness is 25-30 cm in Jianghuai hilly area; the average thillage layer thickness is 15-20 cm,soil stripped thickness is 25-35 cm in Yanjiang plain area; the average thillage layer thickness is 15-20 cm,soil stripped thickness is 20-25 cm in south Anhui hilly area.