Báo cáo lâm nghiệp: "Complex study of foliage nutrient status in ash fertilized Scots pine stands in Lithuani" pptx

... complex analyses of foliage nutrient status in a Scots pine stand in Lithuania. Site. e study site lies in the SW part (54°55'N, 23°43'E) of Lithuania in a common Scots pine stand for ... study aim was to interpret the foliage and soil analyses, and to find possible indications in the soil-plant relation in the stand. e analyses of the fol...

Ngày tải lên: 07/08/2014, 03:22

... following growing seasons (Fig. 3). 4.2. Botanical determinants of foliage clumpiness and light harvesting Studies linking botanical parameters to spatial distribution of leaf area and/or light interception ... rather than in µ was the determinant factor driving light interception during a large fraction of the growing season. This is in agree- ment with the observations by Niinem...

Ngày tải lên: 07/08/2014, 16:21

... limited value in assessing the complexity of field situations, they al- low gaining insight into the capability of harvest residues to decrease N leaching. The amount of N leached from the soil in the ... residues (300 g of leaves, 88 g of bark, 100 g of twigs) both incorporated into the soil; (IP) as NW, and with woody residues (1000 g of branches) cut into 20 cm long pieces...

Ngày tải lên: 07/08/2014, 16:21

... lysis of walls of cortical cells in contact with the hyphae of the Hartig net. Hence, the aisturbance of the symbiotic equilibrium induced by girdling of the host plant ... and Development. (M.B. Wilkins, ed.), McGraw-Hill, London, pp. 383-417 7 Experimental study of pine ectomycorrhizae: ectomycorrhizal organization after girdling of the hy...

Ngày tải lên: 09/08/2014, 04:20

... purpose of the one-on-one interview. e meeting was helpful in specifying the starting money for the bidding game. e wording of the questions was written in their own language. In each bidding ... than that of Tamang. Finally, the difference in WTPs in both scenarios indicates the relative status of asparagus in two forests to both castes. e higher amount of colle...

Ngày tải lên: 07/08/2014, 10:21

... wilting point (pF 4.2), taking into account the percentage of gravels. Finally, predawn and midday water potentials were measured in Q. ilex trees during the summer of 2002 and 2003 by means of the ... can also explain the favourable water status of the trees studied. For in- stance, integrating θ variation in BA site in the first 3 m depth and at 13.3 m of distance – the h...

Ngày tải lên: 07/08/2014, 16:21

... were used against respiratory and urinary diseases [5,9]. Essential oil extracted from these organs is rich in α-pinene and 1,8-cineole [33,47]. The demand for this plant is increasing in pharmaceutic, ... Institute of Applied Science and Technology, Department of Biology, Laboratory of Plant Biotechnology, Centre Urbain Nord, BP 676, 1080 Tunis Cedex, Tunisia b National Institute...

Ngày tải lên: 07/08/2014, 16:21

... function of the retention properties of the soil and of the rooting depth of the vegetation. The range of LAI obtained with varying water availability is in agree- ment with data of Damesin et al. ... finding agrees with measurements obtained by Damesin et al. [13] on the basis of the leaf d 13 C signature in Quercus ilex trees growing in a rainfall gradient in southern...

Ngày tải lên: 08/08/2014, 01:21

... numbers of formed cells. The beginning of the longitudinal axial parenchyma formation was determined in young trees on May 14. In old trees this activity was seen a week later. The influence of ... the periodical sampling was performed in weekly intervals. In our research, the start of the formation of new early phloem cells was observed at the beginning of April. In...

Ngày tải lên: 07/08/2014, 10:21

... identification of an infes- ted tree. The yellowing of the crown and the bark falling off in patches were listed by 80% of the officers as very important symptoms for the identification of attacks. ... individual interviews in March 1997. Its main purpose was to determine how the officers identified infested trees and how they reported them on the timber-marking forms. It was comp...

Ngày tải lên: 08/08/2014, 01:22