泰安市土壤侵蚀敏感性评价研究

Sensitivity Evaluation of Soil Erosion in Tai'an City

泰安市受特殊的自然地理条件限制,区域水生态问题突出,水土流失严重,是黄淮海地区集中连片的水土流失区域。据美国通用土壤流失方程,确定土壤侵蚀敏感性因子,进行泰安市土壤侵蚀敏感性研究。结果表明,虽然泰安市土壤侵蚀不敏感面积占市域的42.54%,但轻度及以上的面积仍高达57.46%,说明泰安市存在不同程度的土壤侵蚀敏感性。此外,土壤侵蚀现状与土壤侵蚀敏感性有着正相关关系,敏感性大的地方土壤侵蚀一般较严重,但并不绝对,人类活动对土壤侵蚀也有着较大的影响。

Because of the natural condition limition of Tai＇an City,the regional water ecology and water loss is serious. Tai＇an is concentrated region of water loss in Huanghuaihai region. Based on the universal soil loss equation,soil erosion sensitivity factors were determined and then study on the sensitivity of soil erosion in Tai＇an City was carried out. The results suggested that although the insensitive area accounts for 42. 54%in Tai＇an City,the other sensitive area is still as high as 57. 46% It means that Tai＇an City exists different degree of soil erosion. Besides,there is a positive correlation between current status of soil erosion and the sensitivity of soil erosion. General speaking,the more sensitive of the soil,the severer soil erodes,but it＇s not absolutely. Human activities have a great effect on soil erosion as well.