TY  - Data
T1  - Basic physical and chemical properties and NDVI data set of surface soil nutrients in No. 2 well field of nalinhe mining area, Ordos City, Inner Mongolia Autonomous Region (October 2019)
A1  - Zhang Kai
A1  - Li Xiaonan
DO  - 10.12072/ncdc.UTCMW.db2147.2022
PY  - 2022
DA  - 2022-05-31
PB  - National Cryosphere Desert Data Center
AB  - Coal mining subsidence has an impact on soil water, soil acidity and alkalinity, alkali hydrolyzable nitrogen, available phosphorus, available potassium and organic matter. Among them, the change of soil water content is the most obvious, the pH value increases slightly, but there is no obvious change, and the content of soil fertility also fluctuates. Coal mining causes soil cracks and subsidence, reduces soil water content, and then increases soil alkalinity. Cracks destroy the root growth of vegetation and the invasion of fissure runoff, reducing soil fertility. Through the investigation and analysis of the current situation of mine water supply in the coal mine, it can be seen that the underground drainage during normal water inflow of the coal mine is 35520 m3 / d (including 960 m3 / d of yellow mud grouting precipitation), and the maximum actual water inflow can reach 52800 m3 / d, while the utilization rate of mine water resources is very low. Therefore, the mine water resources can form a comprehensive utilization scheme to meet the specific local needs. The data mainly calculate the water demand of each water consumption point through simulation, calculate the daily water quantity of each water consumption point, simulate and calculate the effluent quality of each structure, and finally make the water balance diagram and efficient utilization way.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/69b32235-9e6f-4e8e-8a4e-747ea2b898d6
ER  -