Environmental Quality Evaluation of Soil Heavy Metals in Xinjiang Tianshan Northern Slope Economic Zone

Pollution situation of soil heavy metals in Xinjiang Tianshan northern slope economic zone was studied to provide a theoretical basis for treatment of soil heavy metal pollution in northern slope economic zone，used single index evaluation index method and Nemerow comprehensive index method.From evaluation results，Hutubi-Shawan area in Tianshan northern slope economic zone，both single element index and comprehensive index，the first grade soil quality reached more than 85%.Because two level soil in northern Shihezi was relatively concentrated in the region，soil quality in this area was slightly lower than that in the other areas of study area.Three level soil samples were only 4 in all 8 participating elements，distribution range was small，and influence of planting regionalization of agricultural products was small.There was no super three soil distribution.Therefore，soil heavy metals environmental quality in Hutubi-Shawan plain area was still in excellent level.Soil heavy metals in most areas would not cause harm and pollution for plant and environment.It was suitable for staple crops，economic crops，vegetables and orchards and other land，and has potential to develop green agricultural products.