PANGAEA_993583 Aboveground biomass amount, nitrogen content, digestibility of biomass in eastern Mongolian steppe in 2019 and 2020 Jäschke, Yun; Oyunbileg, Munkhzul; Uuganjargal, Khaliun; Oyuntsetseg, Batlai; Wesche, Karsten; Ritz, Christiane; Oyundelger, Khurelpurev Aboveground biomass amount, nitrogen content, digestibility of biomass in eastern Mongolian steppe in 2019 and 2020 2026-04-22 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.993583 Investigator Yun Jäschke yunwang.hh@gmail.com Earth Science Event label LATITUDE LONGITUDE ELEVATION DATE/TIME Site Season pH Conductivity, electrical Carbon, organic, soil Nitrogen, soil Phosphorus, plant-available Carbon/Nitrogen ratio Coverage Distance Temperature, air, annual mean Temperature, air, standard deviation Temperature, annual range Precipitation, annual mean Precipitation, seasonality Precipitation, warmest quarter Sheep unit, total, bagh level Nitrogen content, forbs Nitrogen content, graminoids Water content, forbs Plant water content Biomass, aboveground, dry mass Community-weighted mean trait value of nitrogen content Protein, crude content Protein, crude yield Organic matter digestibility, ingested forage, fecal crude protein based Forbs content, aboveground, biomass, dry mass Graminoids content, aboveground, biomass, dry mass Shrubs content, aboveground, biomass, dry mass Subshrubs content, aboveground, biomass, dry mass Forbs, cover Graminoids, cover Shrubs, cover Subshrubs, cover Vegetation, cover Plant, species richness geoscientificInformation 100au 100sp 100Su 101Su 102Su 103Su 104Su 105Su 106Su 107au 107sp 107Su 108au 108sp 108Su 109au 109sp 109Su 134au 134Su 135au 135sp 135Su 136Su 137Su 138Su 164au 164sp 164Su 165au 165sp 165Su 166au 166sp 166Su 167au 167sp 167Su 180au 180sp 180Su 181au 181sp 181Su 182Su 183Su 184au 184sp 184Su 209au 209Su 210au 210Su 211au 211Su 212au 212Su 237au 237Su 238au 238Su 239Su 240au 240Su 265au 265Su 290au 290Su 291au 291Su 292au 292Su 317Su 318Su 319au 319Su 320Su 54au 54sp 54Su 56au 56sp 56Su 57au 57sp 57Su 58au 58sp 58Su 59au 59sp 59Su 60au 60sp 60Su 81Su 82Su 96au 96sp 96Su 97au 97sp 97Su 98au 98sp 98Su 99au 99sp 99Su crude protein content digestibility forage quantity grazing Morestep2019Autumn Morestep2019Summer Morestep2020Autumn Morestep2020Spring Morestep2020Summer nitrogen content s10au s10Su s1au s1sp s1Su s2au s2sp s2Su s3au s3sp s3Su s4au s4sp s4Su s5au s5sp s5Su s6au s6Su s6vau s6vsp s6vSu s7au s7Su s8au s8Su s9au s9Su soil chemistry steppe Multiparameter probe, HANNA Instruments, HI-991301 Mixer Mill, MM 400, Retsch GmbH, Haan, Germany; Carbon and nitrogen and sulfur (CNS) isotope element analyzer, Elementar, Vario EL III Inductively coupled plasma optical emission spectrometry (ICP-OES), AnalytikJena, PlasmaQuant 9100 Elite Calculated based on WorldClim 2.1 Mixer Mill, MM 400, Retsch GmbH; Muffle furnace, L24/11/B180, Nabertherm GmbH; Carbon and nitrogen and sulfur (CNS) isotope element analyzer, Elementar, Vario EL III 2019-07-17 2020-09-30 Complete 45.2566 49.3239 105.8919 118.4781 632.0 m a.s.l. (ELEVATION) 1713.0 m a.s.l. (ELEVATION) access rights needed CC-BY-4.0: Creative Commons Attribution 4.0 International (License comes into effect after moratorium ends) English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 5366 data points text/tab-separated-values Jäschke, Yun; et al. (submitted): Divergent responses of forage quality and quantity to environmental drivers in Eastern Mongolia. Basic and Applied Ecology Sims, J Thomas (2000): "Soil test phosphorus: Olsen P." Methods of phosphorus analysis for soils, sediments, residuals, and waters. 20-21, file:///Users/inlinc001/Downloads/Methods_of_P_Analysis_2000.pdf, https://download.pangaea.de/reference/139315/attachments/Methods_of_P_Analysis_2000.pdf Wang, C J; Tas, B M; Glindemann, T; Rave, G; Schmidt, L; Weißbach, F; Susenbeth, A (2009): Fecal crude protein content as an estimate for the digestibility of forage in grazing sheep. Animal Feed Science and Technology, 149(3-4), 199-208, https://doi.org/10.1016/j.anifeedsci.2008.06.005

Seasonal aboveground biomass data was collected from non-fenced area using 1 m × 1 m sampling quadrat at 63 sites in central and eastern Mongolian steppes. In each quadrat, living and standing dead aboveground plant material was clipped at ground level. Summer sampling was conducted between mid-July and August and thus during the peak growing season. Autumn sampling was done from mid- to end of September in 2019 and 2020, while spring sampling was only conducted at end of May in 2020 for part of study sites. From each quadrat, we also recorded species vascular plant richness and estimated the total cover of vegetation and the proportion of cover of each functional group, i.e., graminoids (grasses and sedges), shrubs, subshrubs, forbs. Air dried biomass samples from different functional groups were further analyzed for N concentration using a CN analyzer, and community-weighted means of the plant N content were calculated by the share of the dry biomass weight. Crude protein content and yield were further calculated. Water content of total biomass was calculated based on the difference of fresh and oven-dried weight of the total aboveground biomass. Organic matter digestibility of forage ingested based on the fecal CP content was calculated based on equation which was established for sheep on similar steppe condition of Inner Mongolia (Wang et al., 2009). Top-soil samples (0-5cm) were measured for soil pH and EC in a soil water suspension (soil : water ratio = 1:5). Soil total carbon and nitrogen measured by a CN analyzer. We used the Olsen P method (Sims, 2000) to extract the amount of plant available phosphorus. Phosphorus contents in the soil extracts were measured by spectrometry. The content of inorganic C, i.e., carbonate, was first assessed with a quick test using 10 % HCl, and we further analyzed samples which showed significant reactions using a calcimeter following Scheibler's method. Contents of organic C contents were then calculated by deducting inorganic C contents from total C content. A subsample of approximately 1 g of air-dried soil was oven-dried at 105°C for 24 h to determine rest water in the soil. Contents of C, N and aP were corrected for rest water content, and expressed based on oven-dried soil. We aimed to reveal seasonal dynamics of forage availability (biomass amount, N content, CP content/ yield, digestibility, water content) and to evaluate the relative effects of climate, soil chemistry, and grazing on it. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.993583"!

file:///Users/inlinc001/Downloads/Methods_of_P_Analysis_2000.pdf "Soil test phosphorus: Olsen P." Methods of phosphorus analysis for soils, sediments, residuals, and waters http://en.wikipedia.org/wiki/Elevation ELEVATION http://en.wikipedia.org/wiki/ISO_6709 LATITUDE http://en.wikipedia.org/wiki/ISO_6709 LONGITUDE http://en.wikipedia.org/wiki/ISO_8601 DATE/TIME https://doi.org/10.1016/j.anifeedsci.2008.06.005 Fecal crude protein content as an estimate for the digestibility of forage in grazing sheep DIF 9.4 2026-04-22 2026-04-30