2026-10-13T09:06:40Z https://www.scidb.cn/oai

10.57760/sciencedb.IGA.00720 2023-11-03T16:27:54Z

2023-11-03 Long term positioning observation dataset of biomass at Helen Station (1990-1994) doi:10.57760/sciencedb.iga.00720 en a. Data content (data file/table name, including observation index content) Data File Name: Long term Localized Observation Dataset of Biomass at Helen Station (1990-1994) It includes indicators such as planting density, biomass, plant height, stem diameter, node length, stem yield, breaking strength, bending resistance distance, leaf area, leaf area index, dry matter accumulation amount, dry matter accumulation intensity, ear length, thousand grain weight, yield, etc. b. Construction purpose Study the aboveground biological conditions of different crops in black soil areas, and explore certain characteristics of water and nutrient balance in black soil farmland. c. Service object Students, managers, and researchers engaged in research related to soil moisture and nutrient cycling in farmland d. Time range of data The data was collected from 1990 to 1994 e. The spatial range and projection method of data Helen's long-term positioning experimental station. Helen Station; Long term positioning observat; 1990-1994 宋春雨 PUBLIC https://creativecommons.org/licenses/by/4.0/ dataset Science Data Bank