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Geoscience ›› 2017, Vol. 31 ›› Issue (01): 167-176.

• Geochemistry • Previous Articles     Next Articles

The Study and Application of Land Quality Geochemical Evaluation Method: Illustrated by the Case of Hongsheng Town, Heilongjiang Province

LIU Guodong(), CUI Yujun, LIU Lifen, WANG Enbao   

  1. Heilongjiang Academy of Geological Survey, Harbin,Heilongjiang 150036, China
  • Received:2015-09-28 Revised:2016-10-31 Online:2017-02-10 Published:2017-03-16

Abstract:

In order to strengthen the application of achievements of land quality geochemical evaluation, the work took polygons of current land use as the evaluation unit, arranged soil samples in grid by 400×400 meters whose the depth is between 0 to 20 centimeters. Sixteen elements were analyzed, including N, P, K, As, Se, etc. The geochemical quality of cultivated land in Hongsheng Town in Heilongjiang was evaluated referring to the Determination of Land Quality Geochemical Evaluation. The results show that the geochemical comprehensive grade of cultivated land soil quality in Hongsheng Town is “premium”. 99.30 percent of the study area reaches the first grade of environmental quality and more than 94.03 percent reaches the abundant grade of comprehensive nutrients quality. Furthermore, precious selenium-rich land resources of 81.05 km2 were found, whose concentration of Se ranges from 0.4 to 1.01 mg/kg.

Key words: land quality, geochemical evaluation, environment, nutrient, selenium, Hongsheng Town, Heilongjiang

CLC Number: