Linking Plant Growth Responses by Topographic Gradients in Tallgrass Prairie

Linking plant growth responses by topographic gradients in tallgrass prairie

Jesse B. Nippert, Troy W. Ocheltree, Adam M. Skibbe, Laura C. Kangas, Jay M. Ham, Kira B. Shonkwiler Arnold, and Nathaniel A. Brunsell

Fig. S1: Environmental sensor data during the 2009 growing season. Mean daily values for the upland, break, slope, and lowland topographic positions were grouped according to Model 3 in Table 1. Environmental responses measured were volumetric water content at 10cm depth (A), air temperature at 1.5m aboveground (B), the vapor pressure deficit at 1.5m aboveground (C) and wind speed at 2m aboveground (D). Missing water content data occurs from DOY 153 to 162 for the break and lowland positions, respectively.

Fig. S2: Normalized sensor data during the 2009 growing season. Responses for the break, slope, and lowland topographic positions are relative to the mean upland response, which was set to zero. Environmental conditions measured were volumetric water content at 10cm depth (A), air temperature at 1.5m aboveground (B), the vapor pressure deficit at 1.5m aboveground (C) and windspeed at 2m aboveground (D).

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