Báo cáo lâm nghiệp: "Air pollution load and stand nutrition in the Forest District Jablunkov, part Nýdek" docx

... by the Scientific Grant Agency of the Ministry of Education of Slovakia and Slovak Academy of Sciences VEGA, Project No. 2/0045/08. Amounts of throughfall and lysimetric water in a sub-mountain ... 207–211 Water as a substantial component of the living environment is a limiting factor for plants, animals and humans themselves. e amount of (surface...

Ngày tải lên: 07/08/2014, 03:22

... differences in the root system development and health condition were found either between the trees of identical height from self-seeding and from planting in the region of Krušné hory Mts. and in the ... 452–461 JOURNAL OF FOREST SCIENCE, 53, 2007 (10): 452–461 Root system development and health condition of sycamore maple (Acer...

Ngày tải lên: 07/08/2014, 04:20

... of the 1990s. Forest soils showing the insufficiency of main nutrients remain today as the main factor affecting the forest vitality. e situation in the soil is subsequently reflected in the nutrition ... of the decline of Norway spruce (Picea abies [L.] Karst.) stands in Jablunkov, with a focus on air pollution load, and the state of forest soil and nu...

Ngày tải lên: 07/08/2014, 10:21

... significant increment of the growth rate of terminal branches at the high site in recent years. erefore, data obtained from sites at the upper forest limit are valuable in assessing the climate changes ... to determine the number of specimens originating generatively in extensive polycormons. Fig. 4. Mean annual linear increment of terminal branches in Pinus pu...

Ngày tải lên: 07/08/2014, 10:21

... outplanting (G 1982; M 1982; A 1983; D, O-  1990; W 1990). Comparison of morphological and physiological parameters of the planting material of Norway spruce (Picea ... evaluated the growth of different types of planting material in the first years after outplanting to a mountain locality. MATERIAL AND METHODS Plantable...

Ngày tải lên: 07/08/2014, 10:22

... from transplanting until September was 229% in untreated controls, 147% in seedlings in which whorl and lateral buds and whorl branch tips had been removed and 79% where whorl and lat- eral buds and whorl branches ... at transplanting: Whorl and lateral buds and whorl branch tips removed A(), whorl and lateral buds and whorl branches removed B (...

Ngày tải lên: 07/08/2014, 16:20

... 10.1051/forest:2007052 Original article Relationships between site and stock quality in Pinus halepensis Mill. reforestation on semiarid landscapes in eastern Spain Antonio D.  C a * , Rafael ... performance of Pinus halepensis Mill. In this order, the following questions were addressed: (i) What is the relative in uence between stock quality...

Ngày tải lên: 07/08/2014, 16:21

... article Predicting site productivity and pest hazard in lodgepole pine using biogeoclimatic system and geographic variables in British Columbia Harry X. WU a *, Cheng C. YING b , Hong-Bo JU c a ... has been expanded to interior spruce (Picea engel- mannii Parry and P. glauca (Moench) Voss) and lodgepole pine (Pinus contorta Dougl.) in site producti...

Ngày tải lên: 08/08/2014, 00:21

... 10.1051/forest:2003026 Original article Lack of allozyme and ISSR variation in the Rare endemic tree species, Berchemia berchemiaefolia (Rhamnaceae) in Korea Seok-Woo LEE*, Yong-Mo KIM and Won-Woo KIM Korea ... a minimum distance of 20 m in order to decrease the risk of relatedness. However, within a couple of stands, some trees were sampled in cl...

Ngày tải lên: 08/08/2014, 01:21

... article Roles of European and Japanese larch in the genetic control of growth, architecture and wood quality traits in interspecific hybrids (Larix ì eurolepis Henry) Luc E. PQUES* INRA, Unitộ ... – The respective roles of European and Japanese larch species in the genetic control of traits in interspecific hybrids are...

Ngày tải lên: 08/08/2014, 01:22

... subsampling of these progenies and of the adult population. Analysis of the morphological characters The 41 morphological characters used here are listed in table I. These characters ... axis explained 33% of the total variance and the second, 6%. The characters normally used Original article Comparison of morphological characte...

Ngày tải lên: 08/08/2014, 18:21

... conflicting problem of main- taining some degree of photosynthesis while minimizing water loss. Stomatal control in response to varying moisture stress is the first and perhaps ... decreases in stomatal conductance and photosynthe- sis, significantly decreases total carbon fix- ation. Water stress and carbon partitioning within the leaf Car...

Ngày tải lên: 08/08/2014, 18:21

... in diameter), situated 5 mm below and 10 mm above the heating device. Original article Water relations of oak species growing in the natural CO 2 spring of Rapolano (central ... osmotique et une diminution de la fraction d’eau * Correspondence and reprints growing in the CO 2 spring showed increased production of secon...

Ngày tải lên: 08/08/2014, 18:21

... canopy conductance and stand transpiration of an oak forest from sap flow measurements A Granier, N Bréda Équipe bioclimatologie et écophysiologie, unité d’écophysiologie forestière, Centre ... Weir PL (1992) Tran- spiration and canopy conductance in a pristine broad- leaved forest of Nothofagus: an analysis of xylem sap flow and...

Ngày tải lên: 08/08/2014, 18:21

... influences of decline on genetic structure of stands in the next generation. Preconditions for that are investigations con- cerning the state of damage of oak trees and the complete ... gene conservation and forest tree breeding, it is important to gain information about the genetic structure effect on the sensitivity to ’European oak...

Ngày tải lên: 08/08/2014, 18:21