TY  - Data
T1  - Basic physicochemical properties and NDVI dataset of surface soil nutrients in Nalinhe No.2 mine field, 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 moisture, soil acidity and alkalinity, alkaline nitrogen, available phosphorus, available potassium, and organic matter. Among them, the change in soil moisture content is the most significant, with a slight increase in pH value but no significant change, and fluctuations in soil fertility content. Coal mining causes soil cracks and subsidence, leading to a decrease in soil moisture content and an increase in soil alkalinity. Cracks damage the root growth of vegetation and the infiltration of fissure runoff, resulting in a decrease in soil fertility. Through investigation and analysis of the current situation of water supply in the coal mine, it is known that the underground drainage volume during normal water inflow is 35520 m3/d (including 960 m3/d of yellow mud grouting precipitation water), and the actual water inflow can reach up to 52800 m3/d. However, the utilization rate of mine water resources is very low, so a comprehensive utilization plan that adapts to local specific needs is formed for mine water resources. The data is mainly calculated by simulating the water demand of each water point, calculating the daily water volume of each water point, and simulating the effluent quality of each structure. Finally, a water balance chart and efficient utilization approach are produced.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/69b32235-9e6f-4e8e-8a4e-747ea2b898d6
ER  -