%0 Dataset
%T Soil nutrients and organic carbon fractions across groundwater-depth gradients on the southern margin of the Taklimakan Desert (2025)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/64c97fef-6f75-4b32-8368-b16472e76a1d
%W NCDC
%R 10.12072/ncdc.db7770.2026
%A Zhang Zhihao
%K groundwater;soil physical and chemical properties;soil nutrients;organic carbon
%X This dataset is derived from the groundwater burial gradient sample plot (2025.6.6) survey on the southern edge of the Taklimakan Desert. It aims to reveal the impact of groundwater burial changes on desert soil moisture, nutrients and organic carbon components. The data sets three groundwater burial depth levels of 2.5, 4.5 and 11.0 m. Each groundwater burial depth level contains 15 soil sample records, for a total of 45 records. Data indicators include nitrate nitrogen, ammonium nitrogen, inorganic nitrogen, available phosphorus, available potassium, soil water content, soil pH, as well as fine particulate organic carbon, coarse particulate organic carbon, mineral-bound organic carbon and other active or stable organic carbon components. This dataset can be used to study the impact of groundwater depth on soil water supply, nutrient availability, and soil organic carbon component allocation in extremely arid areas. This dataset is stored in CSV format and contains a total of 45 soil sample records and 14 data fields. The data is organized according to groundwater burial depth, including three groundwater burial depth levels of 2.5, 4.5 and 11.0 m, and each burial depth level contains 15 sample records. The main fields include groundwater depth (WD, m), nitrate nitrogen (NN, mg·kg ³), ammonium nitrogen (AN, mg·kg ³), inorganic nitrogen (N, mg·kg ³), available phosphorus (AP, mg·kg ³), available potassium (AK, mg·kg ³), soil water content (SWC, %), soil pH, fine particulate organic carbon (fPOC, mg·kg ³), coarse particulate organic carbon (cPOC, mg·kg ³), mineral-bound organic carbon (MAOC, mg·kg ³), and organic carbon components or carbon pool indicators such as ROC (mg·kg ³), LOC (g·kg ³) and RC (g·kg ³). The data can be used to compare the change characteristics of desert soil moisture, nutrients and different organic carbon components under different groundwater depth conditions, and provide basic data for revealing the impact of groundwater depth changes on des