Abstract: Natural ditches connecting to rivers and lakes usually serve as important channels for flood control and agricultural production and also as wetlands for processing agricultural and rural wastewaters. This dataset was generated in wet (June) and dry (November) seasons of 2014 via surveying 72 various natural ditches in the Central Sichuan Hilly Area, including Yanting, Xichong, Nanchong, Quxian, Shehong, Fengxi, Suining, Zhongjiang, and Santai counties. Samplings and analytical determination of surface water and sediment followed “Approaches for Water and Wastewater Monitoring and Analysis (4th Edition)” and “CERN’s Standard Approaches for Monitoring and Analysis: Indicators for Water Body”. The dataset includes surface water indicators of total nitrogen (TN), total phosphorus (TP), ammonium, nitrate, total dissolved nitrogen (TDN), total dissolved phosphorus (TDP), and particulate nitrogen and phosphorus, and surface sediment indicators of total carbon, TN, TP, ammonium, nitrate, and C/N ratio. This dataset of nitrogen and phosphorus loads in surface water and sediment would provide a critical reference to ecological restoration of degraded natural ditches.
Keywords: the Central Sichuan Hilly Area; Natural Ditch; Wet Season; Dry Season; Nitrogen and Phosphorus Load; Surface Water and Sediment