Sedgwick Reserve

07 Apr, 10 AM - 20 Apr, 08 AM

Description of Current Activity: I will collect soil samples and fertilize treatment plots of a seed addition experiment. These 3 groups of plots are located near the sourthernmost road crossing of Figueroa Creek, above the next road crossing of Figueroa Creek to the north, and just east of the Lisque Rd's second southernmost intersection. A total of 27 soil samples will be collected (approx. 10 cm^3 in volume). Fertilizer added will be 364 mL calcium ammonium nitrate, 516 mL sugar, & 1332 mL corn starch to 9 different plots. I will also be collecting data on plant community composition in these plots via visual estimation of percent cover. Full Project Description: I will examine the change in California grassland plant community composition by estimating percent cover of each species in plots established by Eric Seabloom in 2003 at Sedgwick, Hastings, and McLaughlin Reserves during the peak of the growing season (April-May). Nitrogen availability to the plants will be varied by addition of nitrogen fertilizer or carbon in the form of sugar and corn starch. Nutrient treatments will be added once or twice yearly at a level simulating annual nitrogen deposition outside of urban areas in southern California and an equivalent lowering of nitrogen. These results will be compared with long-term plant community composition data available at Hastings Reserve to understand how grassland communities change over time and space, as well as their response to different nutrient regimes and implications for their restoration.

Visit #11846 @Sedgwick Reserve

Approved

Under Project # 7195 | Research

Grassland community change over time under differing nutrient conditions

research_scientist - Case Western Reserve University

Reservation Members(s)

Angela Brandt Apr 7 - 20, 2007 (14 days)
Angela Brandt Apr 7 - 20, 2007 (14 days)

Reserve Resources(s) | Create Invoice

Studio Apartment 2 Apr 7 - 20, 2007