Dry Weight (Biomass) References
California Annual Grassland [Avena barbata Pott ex Link (Slender Oat), Bromus hordeaceus L. (Soft Brome), Hemizonia congesta DC. (Hayfield Tarweed), Lotus wrangelianus Fisch. & C.A. Mey. (Chilean Birdsfoot Trefoil), and Nassella pulchra (A.S. Hitchc.) Barkworth (Tussock Grass)]
Hungate, B.A., Lund, C.P., Pearson, H.L. and Chapin III, F.S. 1997. Elevated CO2 and nutrient addition alter soil N cycling and N trace gas fluxes with early season wet-up in a California annual grassland. Biogeochemistry 37: 89-109.