Spruce site Wal: Tree mortality data									

Tree mortality (litterfall)									
remarks:	unpublished data from BITOEK. Bayreuth. Contact contactperson this site before use material from litter traps.								
	sampling period from may1995 to april 1996 and calculated for 365 days; periods before and after still not analysed in BITOEK; some time later available if necessary								

 	Stems	Branches	Leaves	Coarse roots	Fruits (Cones)				
year	[kg(DW) ha-1 yr-1]	[kg(DW) ha-1 yr-1]	[kg(DW) ha-1 yr-1]	[kg(DW) ha-1 yr-1]	[kg(DW) ha-1 yr-1]				
1995/96	n.m.	516.36	1847.57	n.m.	1556.31				


Nitrogen content in litterfall									
remarks:	unpublished data from BITOEK. Bayreuth. Contact contactperson this site before use.								
	also data available for Al Ca Cu Fe K Mg Mn Na and Zn. Contact contactperson Waldstein.								
									
 	Stems	Branches	Leaves	Coarse roots	Fruits (Cones)				
year	[mg N g-1(DW)]	[mg N g-1(DW)]	[mg N g-1(DW)]	[mg N g-1(DW)]	[mg N g-1(DW)]				
1995/96	n.m.	11.1	10.5	n.m.	14.4				


Root mortality									
remarks:	data H. Persson (2000); method: Stober et al (2000)								
	Sprucestand 142S.  Coring was made close to five observation-windows representing 5 different trees.								
	At 4 distances from the tree 2 cores were taken and put together.								
	In the spruce stand LFH-layer was measured and calculated as a mean for 2 core samples.								
	In May97 LFH-layer was 5.19cm with standard deviation 0.64.								
 									
 									
Dead fine roots <1mm							 		
									
 	Day	0-2.5	2.5-5	5-10	10-20	20-30	30-40	40-50	Total
year	[daynr]	[kg(DW) ha-1]	[kg(DW) ha-1]	[kg(DW) ha-1]	[kg(DW) ha-1]	[kg(DW) ha-1]	[kg(DW) ha-1]	[kg(DW) ha-1]	[kg(DW) ha-1]
1997	7 may	102	70	96	194	164	24	.	650


Dead fine roots 1-2mm						 			
									
 	Day	0-2.5	2.5-5	5-10	10-20	20-30	30-40	40-50	Total
year	[daynr]	[kg(DW) ha-1]	[kg(DW) ha-1]	[kg(DW) ha-1]	[kg(DW) ha-1]	[kg(DW) ha-1]	[kg(DW) ha-1]	[kg(DW) ha-1]	[kg(DW) ha-1]
1997	7 may	0	0	0	0	0	0	.	0


Dead roots 2-5mm							 		
remarks:	no data available								


Nutrient content dead roots									
remarks:	no data available								
