气候变化领域集成服务门户(CCPortal): Soil nutrient leaching from ten different sites at the Mt. Kilimanjaro

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.912527
	Soil nutrient leaching from ten different sites at the Mt. Kilimanjaro
	Gerschlauer; Friederike; Kiese; Ralf
发布日期	2020-02-25
数据集类型	dataset
英文关键词	Kilimanjaro
英文简介	At ten different sites in the Kilimanjaro region we installed two identical suction cups (SK 20, UMS, Munich, Germany) at 10, 40, and 80 cm soil depths (6 in all) and set them to a vacuum of -400 hPa to allow continuous soil water sampling into brown Duran glass bottles (SF 1,000 ml, UMS, Munich, Germany) stored 50 cm belowground in a covered bucket. Soil water sampling and in situ GHG exchange measurements were conducted simultaneously. The water was decanted into 1L polyethylene bottles (VWR International GmbH, Darmstadt, Germany) and transported to the Nkweseko research station. There, two subsamples were filtered with 0.2 lm syringe filters (Minisart, Sartorius, Goettingen, Germany) and subsequently frozen and stored for a maximum of 6 months. After transportation to KIT IMK-IFU, Germany, total ammonium (NH4+) and nitrate (NO3-) concentrations were measured by colorimetry using an Epoch Microplate Spectrophotometer (BioTek, VT, USA) according to (Dannenmann et al., 2009). Subsamples were analyzed for total extractable nitrogen (DN) and total extractable organic carbon (DOC) using a multi-N/C 3100 combined chemo-luminescence infrared analyzer (Jena Analytik AG, Germany), as described by Bim€uller et al. (2014). Extractable organic nitrogen (DON) was calculated by subtracting mineral N (NH4+ and NO3-) from DN. Annual leaching rates were calculated from mean annual N concentrations multiplied by seepage water formation as calculated from mean annual precipitation - mean annual ETa (estimated from MODIS).
空间范围	Median Latitude: -3.187500 * Median Longitude: 37.265000 * South-bound Latitude: -3.250000 * West-bound Longitude: 37.240000 * North-bound Latitude: -3.140000 * East-bound Longitude: 37.320000
时间范围	2011-10-12T00:00:00 - 2012-04-13T00:00:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215648
推荐引用方式 GB/T 7714	Gerschlauer,Friederike,Kiese,et al. Soil nutrient leaching from ten different sites at the Mt. Kilimanjaro.2020-02-25.https://doi.org/10.1594/PANGAEA.912527.