- Glensaugh (56o54'N 02o33'E) is an upland site at 250m a.s.l..
- Three-year mean monthly minimum, maximum and mean temperatures are 2.4, 17.4 and 9.1 o Celsius respectively.
- Three-year mean annual precipitation is 1050mm.
- The site is on a free draining cultivated brown forest soil on sandy to fine sandy loam.
- The ryegrass-dominated permanent pastures are between 15 and 25 years old.
There are three tree species planted at a number of densities in separate plots (marked x in the table)
|Species||Density (trees ha-1)|
|Common name||Botanical name||100||200||400||2500|
|Hybrid larch||Larix eurolepis||finished 1998||finished 1998||X||X|
|Scots pine||Pinus sylvestris||.||.||X||X|
- The 2500 trees ha-1 treatments are Farm Woodland Controls with no grazing.
- There is a sheep-grazed Agricultural Control which has no trees.
- The silvopastoral treatments are sheep grazed, trees are individually protected.
- There are three replicates of all treatments and controls.
- Grazed plots are either 0.72ha or 0.80ha in area.
- Farm Woodland Controls are a minimum of 0.10ha in area.
- On this site, trees are planted in rows oriented North-South on all plots.
- Greyface ewes (average mature live weight 76kg) are mated to Suffolk rams.
- The Greyface has an average prolificacy of 1.9 lambs born per ewe.
- Mating commences in mid-October when ewes are removed from the experimental plots.
- Ewes are off-wintered on silage with the addition of concentrates in late pregnancy.
- Lambing takes place in a lambing shed.
- Grazing on the experimental plots commences immediately after lambing, commencing in early April.
- Lambs are weaned in mid-July.
Data collection conforms with National Network standards.
Site management conforms with National Network protocols.
Some images of the Glensaugh site.
Sibbald A.R. 2006. Silvopastural agroforestry: a land use for the future. Scottish Forestry 60: 4-7.