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Once a month soil water content measurements are made at 10 depths (where possible) at each of 10 access tubes at each of the 15 LTER-II sites using a neutron probe (Campbell Model 503DR Hydroprobe).
On 10/27/89, 03/14/90, and 10/19/90, % plant cover by species was measured on 20 2x2m hydrology run off plots using quadrats with 10x10cm units.
Biomass of annual and perennial forbs and grasses was obtained from a one meter quad selected at random just downslope from each of the 6 5-meter segments of the 30 meter plant line intercepts located perpendicular to the transect station marker.
Soil mineralization was examined on the control and fertilized treatment transects in association with the vegetation biomass study.
Average percent coverage of each plant species per 5-meter segment along a 30-meter line intercept perpendicular to each of 91 stations on each of the three LTER-I permanent transects.
Average percent coverage of each plant species per 5-meter segment along a 30-meter line intercept perpendicular to each of 91 stations on each of the three LTER-I permanent transects.
