This data set includes the physical and chemical indicators, hydrogen and oxygen isotopes, and nitrogen and oxygen isotopes of the main water bodies in Chongqing Jinfo Shanshui Fangquan Valley in 2022. Except for some data that are interrupted or damaged due to equipment, the testing intervals for pH, water temperature, conductivity, and dissolved oxygen vary from 4 to 10 minutes, and the sampling and testing intervals for the main anion and cation concentrations and isotope data are about January. The data can be used for inversion of basin water source, water rock interaction, water environment change, water quality evolution, climate change and human activities, as well as comparative study of groundwater in different regions, providing basic data for basin ecological environment protection, groundwater resource assessment and groundwater pollution prevention and control.
This data set includes the physical and chemical indicators, hydrogen and oxygen isotopes, and nitrogen and oxygen isotopes of the main water bodies in Chongqing Jinfo Shanshui Fangquan Valley in 2021. Except for some data that are interrupted or damaged due to equipment, the test intervals for pH, water temperature, conductivity, and dissolved oxygen are 4 to 10 minutes, and the sampling and test intervals for the main anion and cation concentrations and isotope data are about January. The data can be used for inversion of basin water source, water rock interaction, water environment change, water quality evolution, climate change and human activities, as well as comparative study of groundwater in different regions, providing basic data for basin ecological environment protection, groundwater resource assessment and groundwater pollution prevention and control.
This data set includes the physical and chemical indicators, hydrogen and oxygen isotopes, and nitrogen and oxygen isotopes of the main water bodies in Chongqing Jinfo Shanshui Fangquan Valley in 2020. Except for some data that are interrupted or damaged due to equipment, the testing intervals for pH, water temperature, conductivity, and dissolved oxygen vary from 4 to 10 minutes, and the sampling and testing intervals for the main anion and cation concentrations and isotope data are about January. The data can be used for inversion of basin water source, water rock interaction, water environment change, water quality evolution, climate change and human activities, as well as comparative study of groundwater in different regions, providing basic data for basin ecological environment protection, groundwater resource assessment and groundwater pollution prevention and control.
This data set includes the physical and chemical indicators, hydrogen and oxygen isotopes, and nitrogen and oxygen isotopes of the main water bodies in the Fangquan Valley of Jinfo Mountain in Chongqing in 2019. Except for some data that are interrupted or damaged by equipment, the test intervals for pH, water temperature, conductivity, and dissolved oxygen are 4 to 10 minutes, and the sampling and test intervals for the main anion and cation concentrations and isotope data are about January. The data can be used for inversion of basin water source, water rock interaction, water environment change, water quality evolution, climate change and human activities, as well as comparative study of groundwater in different regions, providing basic data for basin ecological environment protection, groundwater resource assessment and groundwater pollution prevention and control.
This data set includes the physical and chemical indicators, hydrogen and oxygen isotopes, and nitrogen and oxygen isotopes of the main water bodies in Chongqing Jinfo Mountain Fangquan Valley in 2018. Except for some data that are interrupted or damaged due to equipment, the test intervals for pH, water temperature, conductivity, and dissolved oxygen are 4 to 10 minutes, and the sampling and test intervals for the main anion and cation concentrations and isotope data are about 1 month. The data can be used for inversion of basin water source, water rock interaction, water environment change, water quality evolution, climate change and human activities, as well as comparative study of groundwater in different regions, providing basic data for basin ecological environment protection, groundwater resource assessment and groundwater pollution prevention and control.
Gross primary productivity (GPP) refers to the amount of organic carbon fixed by plants in the process of absorbing CO2 through photosynthesis in a unit of time. The MODIS gross primary productivity product data set in the upper reaches of the Yangtze River, China, is based on the cutting and splicing of MOD17A2H (version 006) products. The data product provides the estimated GPP value, which can be used as the input of the data model to calculate the terrestrial energy, carbon, water cycle process, and vegetation biogeochemistry. The time range is from February 18, 2000 to August 30, 2022. The spatial resolution is 500m, the time resolution is 8-day cumulative comprehensive value, and the data coordinate system is the WGS84 geographic coordinate system.
Gross primary productivity (GPP) refers to the amount of organic carbon fixed by plants in the process of absorbing CO2 through photosynthesis in a unit of time. The MODIS gross primary productivity product data set in Southwest China is based on the cutting and splicing of MOD17A2H (version 006) products. The data product provides the estimated GPP value, which can be used as the input of the data model to calculate the terrestrial energy, carbon, water cycle process, and vegetation biogeochemistry. The time range is from February 18, 2000 to August 30, 2022. The spatial resolution is 500m, the time resolution is 8-day cumulative comprehensive value, and the data coordinate system is the WGS84 geographic coordinate system.
Net primary production (NPP) is the net creation of organic matter in plant photosynthesis, a key parameter characterized by terrestrial ecological processes and an indispensable part of understanding the process of the surface carbon cycle. The MODIS Net Primary Production Product Dataset with 500m spatial resolution in Southwest China is based on the MOD17A3HGF product (version 6.1) cut and spliced. The product improved and filled in the blanks of MOD17. According to the quality control (QC) label of each pixel, the low-quality input of the 8-day leaf area index and the photosynthetic effective radiation fraction (LAI/FPAR) was cleared, which has been widely used in land use evaluation, regional ecological planning, vegetation growth monitoring, etc. The time range is from 2001 to 2021; the spatial resolution is 500m; the time resolution is every year; and the data coordinate system is the WGS84 geographic coordinate system.
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