Báo cáo lâm nghiêp: "Thinning Forestry control of conifer plantations in Great Britain" docx

... character of the wood into the wine by leaching of extractives. In this way, wine goes through subtle chemical changes, resulting in greater com- plexity and a softening of the harsh tannins and flavours present ... Fontainebleau stand c yes Molecular control of cooperage wood origin 101 obtained from the barrel. The set of five chloroplast fragments, dt13 and µdt1 (instead o...

Ngày tải lên: 08/08/2014, 01:22

... 2002). RESULTS In the territory of the Kienhaida NR and in its vi- cinity, a total of 1,135 earthworms (643 in spring and 492 in late summer) of eight species were captured using the Tullgren ... Another 250 individuals of 13 species were obtained by individual collection. While in this area Dendrobaena attemsi was super- dominant in the spring season (representing 57....

Ngày tải lên: 07/08/2014, 10:21

... the use of putrescine, which in com- bination with low concentration of auxin, in rooting medium, was essential in stimulating high rooting percentage with high quality of roots, resulting in fast ... H 2 O 2 freeing from polyamine catabolism, which is well known to increase peroxidase activity reducing IAA in the in- duction phase [23]. Putrescine not only induces an increa...

Ngày tải lên: 07/08/2014, 16:20

... different thermal chocks and control situation. Control 50ºC 75ºC 100ºC 125ºC 1 min 5 min 10 min 15 min 1 min 5 min 10 min 15 min 1 min 5 min 10 min 15 min 1 min 5 min 10 min 15 min Halimium alyssoides ... 2312171820213123202246304342 28 13 2 Control 70 ºC 90 ºC 110 ºC 130 ºC 150 ºC 170 ºC 190 ºC 1 min 5 min 1 min 5 min 1 min 5 min 1 min 5 min 1 min 5 min 1 min 5 min 1 min 5 min Pinus s...

Ngày tải lên: 08/08/2014, 01:21

... and the first thin- ning time (1985) was verified by counting 18 annual rings (years) from bark. In this way the starting point of the wood zone after thin- ning was determined using an image analysis ... increment (1.30 m) for an individual tree. Thinning treatments increased annual ring width especially a few years after thinning. Heavy thinning treatments were especially effective in im...

Ngày tải lên: 07/08/2014, 16:21

... growth of loblolly pine increased with area of control up to 18.1 m 2 (complete broadcast control) [9]. Richardson et al. [23] found that the optimal area of spot weed control in radiata pine (Pinus ... rapid invasion from the plot into the spot treatments minimizing effects of herbaceous treatments. This invasion was expected to be especially intense due to the fencing of p...

Ngày tải lên: 08/08/2014, 00:22

... pine trees is affected by thinning. Within the range of removals contained in this data set, the heavier the thinning the greater is the response. Height growth is initially reduced by thinning ... age at the time of thinning (A > A t ), and r is the rate parameter corresponding to thinning response. In order to account for the thinning response in the beginning, the value of r...

Ngày tải lên: 08/08/2014, 00:22

... h Single cutting vs. untreated control 1 1 0 0 0 0 0 –2 Single cutting vs. repeated cutting (all) 1 1 –1 –1 0 0 0 0 Single cutting vs. repeated cutting (spring) 1 0 –1 0 0 0 0 0 Single cutting ... Year of application Dates of application Spring (1992) [1 cutting] Single spring cutting a 1992 June 25–26, 1992 Summer (1992) [1 cutting] Single summer cutting b 1992 July 25–28, 1992 Sprin...

Ngày tải lên: 08/08/2014, 01:21

Ngày tải lên: 07/08/2014, 03:22

... area of the West- ern Beskidy region. Along with the increase of the size of salvage cuttings (including the removal of in- fested trees) the area of stands affected by the forest decline increased ... 2005 (higher than in 2004, but including also lying, infested trees), but also – in the volume of infested standing trees, which was lower than in 2004. e real increase...

Ngày tải lên: 07/08/2014, 03:22