已经观察到希腊北部Ｋｉｌｋｉｓ地区由于土壤侵蚀导致了产量下降。研究了面积为 30 0 0ｈｍ2 的地区 ,调查的大多土壤为由石灰石和酸性物质风化而来的土壤。这类土壤覆盖大部分山区 ,划分为新成土、始成土或淋溶土 ,常种植小麦、玉米、烟草和甜菜 ,它们通常是由第三纪或第四纪 It has been observed that the decline in production in the Kilkis region of northern Greece due to soil erosion. The area of ​​300hm2 was studied. Most of the soils studied were soils that were weathered by limestone and acidic materials. This type of soil covers most of the mountainous area and is divided into newly formed soil, initial soil or leaching soil, often planted with wheat, corn, tobacco and sugar beet, usually from the Tertiary or Quaternary