不同整地方式对红松林地土壤理化性状的影响

Effects of Different Site Preparation Ways on Soil Physical and Chemical Properties of Pinus koraiensis Forestland

采用全面、带状、块状3种整地方式,研究了不同的整地方式对红松林间土壤理化性状的影响。结果表明:3种整地方式在整地后较短的时间可以明显改善土壤的物理性状,提高土壤的透气性,加快微生物活动,起到改善地力的作用。整地3年后全面、带状2种整地方式的土壤地力有恢复到整地前的趋势,而块状整地方式地力稍有提高,说明全面、带状2种方式在短期内可明显改善土壤的物理性状,却不利于地力的长期维持,而块状整地方式下水土流失少,有助于维持地力。

The effect of different soil preparation methods on soil physical and chemical properties of Pinus koraiensis forest was studied by three kinds of siol preparation methods（overall soil preparation,strip soil preparation and spot soil preparation）.Result shows that the three soil preparation methods can significantly improve soil physical properties,improve soil gas permeability,accelerate microbial activity,and play a role in improving soil fertility after the soil preparation within a short time.After three years of soil preparation overall soil preparation and strip soil preparation appear trend defore returning to the soil preparation;the ferlility was improved slightly by adopting spot soil preparation.It illustrates that the two modes（overall soil preparation and strip soil preparation）can significantly improve soil physical properties in a short period of time,but it is not conducive to the long-term maintenance of soil fertility,and the soil erosion under the spot soil preparation method is less,which helps maintain soil fertility.