Báo cáo lâm nghiệp: "Characterizing fertility targets and multi-element interactions in nursery culture of Quercus rubra seedlings" pot

... 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

... role in projecting future multi-functional forests is to harmonize the requirements for the Forest yield index and its applicability to the assessment of future forest yields L. K 1,2 , ... Examples of relative yield assessment in assumed conditions of even-aged, fully stocked forest stands, for the main types of target forests and most fre...

Ngày tải lên: 07/08/2014, 10:21

... 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

... forest trees and stands under severe drought: a review of ecophysiological responses, adaptation processes and long-term consequences Nathalie B ´  a * ,RolandH  b , André G a ,ErwinD a a UMR ... daily data) and of relative extractable soil water (REW) in: (a) beech stands (Soroe, Hesse and Hainich), (b) coniferous stands (Thara...

Ngày tải lên: 07/08/2014, 16:20

... 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:2006092 Original article Divergence among species and populations of Mediterranean pines in biomass allocation of seedlings grown under two watering regimes Marìa Regina C,JoséC, ... experiment, indicating that the cultivation protocol was ineffective in hastening maturity in this species. Regarding stone pine (Pinus pinea), the...

Ngày tải lên: 07/08/2014, 16:20

... existing crown fire models can be found in Pastor et al. [60]. Aleppo pine canopy fuels and crown fire behavior 297 crown fires [76]. The CBD distribution in the fuel profiles of Aleppo pine stands indicate ... load distribution in uneven aged Aleppo pine stands. Aleppo pine canopy fuels and crown fire behavior 289 2.2.1. Cro wn fire initiat...

Ngày tải lên: 07/08/2014, 16:20

... online at: c  INRA, EDP Sciences, 2007 www.afs-journal.org DOI: 10.1051/forest:2007022 Original article Differential photosynthetic and survival responses to soil drought in two evergreen Nothofagus ... increas- ing drought in N. nitida, remaining close to optimal values in N. dombeyi down to −2.5 MPa (Fig. 2). At Ψ m > −1.5MPa, ∆F/Fm  and qP were lower...

Ngày tải lên: 07/08/2014, 16:21

... 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

... available in planning. The mod- els should be able to predict the potential damage caused by fire in any forest stand in Catalonia, depending on the site and the structure of the stand. In addition ... the stand level was the proportion of trees that died as a result of fire (Tab. I). 2.4. Stand- level damage modelling A stand- level fire damage model was developed by tes...

Ngày tải lên: 07/08/2014, 16:21

... 10.1051/forest:2007069 Original article Stand structure, competition and growth of Scots pine (Pinus sylvestris L.) in a Mediterranean mountainous environment Antonio Garc ´ ia-Abril,SusanaMartin-Fern ´ andez,M.AngelesGrande,JoseA.Manzanera * Technical ... diameter and basal area growth of Scots pine in the uneven-aged stand than in the even-aged st...

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:2006001 Original article Characterizing fertility targets and multi-element interactions in nursery culture of Quercus rubra seedlings K. Francis SALIFU, Douglass F. JACOBS* Hardwood Tree Improvement and ... seedling field performance. 3.3. Multi-element interactions Vector diagnosis is used to interpret and improve under- standing of multi-el...

Ngày tải lên: 08/08/2014, 00:22

... 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

... 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