Above-ground, plot-based measurements were recorded for 10 trees of each seed lot in both years 3 and 4.
Above ground plant biomass was harvested from one, 1 × 1 m plot per treatment per shelter for each of the five rain shelters, in June and again in August to simulate total biomass harvest under an average agricultural season.
DO NOT purchase an above ground pool.
To determine the light environment at 1-m above ground in each plot, the relative photosynthetic photon flux density (rPPFD) was determined with two quantum sensors (MES-101; Koito-Kogyo, Tokyo, Japan) from 2000 to 2005 and in 2010.
Alternatively tree counting software such as TiMBRs could be used to identify tree locations (Culvenor et al., 1998; Culvenor, 2002) which could then be used to estimate local stand density above each ground plot and over the whole stand using an appropriate grid size.
Three plots within each shelter were randomly selected for each of the five irrigation treatments (leaving the sixteenth plot unused), with one plot dedicated to SSCE measurements and soil moisture core extractions, one plot for above ground biomass harvests, and one for a seed germination study not included in this paper.
We established 176 circular 200 m2 plots for field measurements of above ground biomass.
We established 176 circular 200 m plots for field measurements of above ground biomass.
In September, all 3 trees from each plot were harvested to determine their above ground biomass.
Above ground net primary productivity (ANPP, g C m-2 yr-1) for BEF plots has been estimated as the sum of wood production plus foliar production, based on plot measurements of tree diameters, litterfall, and allometeric scaling.
Above ground, the crises multiply.
