JOURNAL OF NATURAL RESOURCES ›› 2016, Vol. 31 ›› Issue (6): 982-993.doi: 10.11849/zrzyxb.20150612

• Resource Evaluation • Previous Articles     Next Articles

Assessing the Loss Value of Soil and Water Conservation Resulted from the Mining of Rare Earth Ore in Ganzhou, Jiangxi Province

ZHOU Xia-fei1, ZHU Wen-quan1, MA Guo-xia2, ZHANG Dong-hai1, ZHENG Zhou-tao1   

  1. 1. a. State Key Laboratory of Earth Surface Processes and Resource Ecology, b. College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China;
    2. Chinese Academy for Environmental Planning, Beijing 100012, China
  • Received:2015-06-02 Online:2016-06-20 Published:2016-06-20
  • Supported by:
    National Natural Science Foundation of China,No. 41371389 and 41371533; State Key Laboratory of Earth Surface Processes and Resource Ecology, No. 2013-ZY-14;Public Utility Research Program of Ministry of Environmental Protection, No. 201309043.

Abstract: Mining the rare earth ore without orders not only causes the waste of rare earth resources, but also leads to a series of environmental problems, such as the loss of soil and water, environmental pollution, and so on. Based on the universal soil loss equation (USLE), this article first evaluated the amount of soil erosion in the reference regions and the rare earth ore mining regions by using the investigation data of the rare earth ore, remote sensing data, meteorological data and basic geographic data in Ganzhou, Jiangxi Province, and then analyzed the quantity and lost value of soil and water conservation resulted from the mining of rare earth ore by comparing the results in these two kinds of regions. The results showed that: 1) The soil erosion resulted from the mining of rare earth ore in Ganzhou was very serious. Comparing with the reference regions with lower soil erosion modulus (average of 2 345.9 t/(km2·a)), the average soil erosion modulus in the mining areas and their surroundings were quite high which reached 8 487.5 t/(km2·a), even more than 70 000 t/(km2·a) in the most serious areas. As a whole, the amount of soil erosion caused by the mining of rare earth was 646 917 t. 2) Both the quantity loss and the value loss of soil and water conservation resulting from the mining of rare earth ore were huge. The value loss for soil and water conservation resulted from the mining of rare earth ore was 4 619.213 million yuan in 2013, accounting for 12.35% of the total output value of rare earth ore. The methodology for the assessment of the lost value of soil and water conservation can be used to resolve the similar environment damage evaluations in other mining areas, and the research results provide a basis for the ecological assessment, the price making of the rare earth, and the ecological environment management in mining areas.

Key words: Ganzhou, loss of soil and water conservation value, rare earth ore, soil erosion modulus

CLC Number: 

  • X37