Đăng nhập

Hãy chọn một cách để đăng nhập

Hoặc tiếp tục với email

Nhớ mật khẩu

Chưa có tài khoản? Đăng ký

Báo cáo lâm nghiệp: "Eﬀects of microsite variation on growth and adaptive traits in a beech provenance trial." pps

Báo cáo lâm nghiệp: "Eﬀect of Melampsora larici-populina on growth and biomass yield of eight clones of Populus nigra" ppsx

Báo cáo lâm nghiệp: "Eﬀect of Melampsora larici-populina on growth and biomass yield of eight clones of Populus nigra" ppsx

... intensity of Melampsora larici-populina occurrence and the value of growth traits and biomass yield in Populus nigra  e correlation between the growth traits of stem diameter and plant height and ... some clones (clones 7 and 107) no yield decline was observed at all or it ranged only from 6% to 9% (clones 49 and 152). It is to note that clone 107...

Ngày tải lên : 07/08/2014, 10:21

9
523
0

Báo cáo lâm nghiệp: "Eﬀects of microsite variation on growth and adaptive traits in a beech provenance trial." pps

Báo cáo lâm nghiệp: "Eﬀects of microsite variation on growth and adaptive traits in a beech provenance trial." pps

... environmental indicators.  e aim of this study was to clarify to what extent the spatial variation of environment a ects growth and adaptive traits in a provenance trial, and whether blocking can ... genetic variation within populations and/ or environmental variation on very small scales. Analysis of covariance conﬁ rmed the expected signiﬁ cant provena...

Ngày tải lên : 07/08/2014, 10:21

8
364
0

Báo cáo lâm nghiệp: "Eﬀect of species composition, stand density and site index on the basal area increment of oak trees (Quercus sp.) in mixed stands with beech (Fagus sylvatica L.) in northern France" potx

Báo cáo lâm nghiệp: "Eﬀect of species composition, stand density and site index on the basal area increment of oak trees (Quercus sp.) in mixed stands with beech (Fagus sylvatica L.) in northern France" potx

... pure and mixed stands. Growth of oaks in mixed stands with beech 461 The eﬀects of stand density (Rdi o ak + beech) , species composition (mix b eech), stand age of oak (age o ak), and site index of ... the stand basal area increment as a function of dominant height, height increment of the dominant trees, and stand density...

Ngày tải lên : 07/08/2014, 16:20

11
422
0

Báo cáo lâm nghiệp: "Eﬀects of drought and heat on forest insect populations in relation to the 2003 drought in Western Europe" ppt

Báo cáo lâm nghiệp: "Eﬀects of drought and heat on forest insect populations in relation to the 2003 drought in Western Europe" ppt

... insect populations in the context of this exceptional event. Observations of changes in population levels of the main European forest insect pests during and after the drought are presented and ... prolonged drought on bark beetles The success of the establishment of bark beetle populations on their host tree depends, on the level of the...

Ngày tải lên : 07/08/2014, 16:20

12
452
0

Báo cáo lâm nghiệp: "Eﬀect of leaf biomass and phenological structure of the canopy on plot growth in a deciduous hardwood forest in northern Japan" pot

Báo cáo lâm nghiệp: "Eﬀect of leaf biomass and phenological structure of the canopy on plot growth in a deciduous hardwood forest in northern Japan" pot

... each combination of plot and month. Annual leaf biomass was calculated by summing monthly leaffall. To quantify the phenological pattern of leaffall and the corre- sponding phenological structure of the ... 2006) Abstract – We monitored leaf biomass, seasonal changes in leaffall, and plot growth for 11 years post-thinning in a secondary deciduous har...

Ngày tải lên : 07/08/2014, 16:20

8
347
0

Báo cáo lâm nghiệp: "Eﬀect of tree species substitution on organic matter biodegradability and mineral nutrient availability in a temperate topsoil" pptx

Báo cáo lâm nghiệp: "Eﬀect of tree species substitution on organic matter biodegradability and mineral nutrient availability in a temperate topsoil" pptx

... organic matter biodegradability and consequently on mineral element and major nutriments release and availability. The results showed that carbon mineralization and nitrogen mineralization can ... water-holding capacity). Carbon-mineralization was monitored; mineral nitrogen, water-extractable organic carbon and mineral elements were determined before and after th...

Ngày tải lên : 07/08/2014, 16:20

9
368
0

Báo cáo lâm nghiệp: "Eﬃciency of early selection for rotation-aged wood quality traits in radiata pine" pdf

Báo cáo lâm nghiệp: "Eﬃciency of early selection for rotation-aged wood quality traits in radiata pine" pdf

... years for density including ear- lywood and latewood density [22]. Early selection for radiata pine (Pinus radiata) has been examined in growth and wood density. Cotterill and Dean [6] observed early ... as for wood density, the age-age genetic Early selection for wood quality traits in radiata pine 3 (2) age trend of heritability of these traits; (3...

Ngày tải lên : 07/08/2014, 16:20

9
383
0

Báo cáo lâm nghiệp: "Eﬀects of selective thinning on growth and development of beech (Fagus sylvatica L.) forest stands in south-eastern Slovenia" docx

Báo cáo lâm nghiệp: "Eﬀects of selective thinning on growth and development of beech (Fagus sylvatica L.) forest stands in south-eastern Slovenia" docx

... 52]. Classification of thinning methods varies due to different criteria, including the type of thinning, intensity (grade), re- turn interval, and the timing of the first thinning [48]. Two major types of thinning ... again during the last thinning. In the T2, 258 crop trees were chosen in the first thinning, and only 62% of these trees were chosen again during the las...

Ngày tải lên : 07/08/2014, 16:20

11
365
0

Báo cáo lâm nghiệp: "Eﬀects of the clear-cutting of a Douglas-ﬁr plantation (Pseudotsuga menziesii F.) on the chemical composition of soil solutions and on the leaching of DOC and ions in drainage waters" pps

Báo cáo lâm nghiệp: "Eﬀects of the clear-cutting of a Douglas-ﬁr plantation (Pseudotsuga menziesii F.) on the chemical composition of soil solutions and on the leaching of DOC and ions in drainage waters" pps

... (Pseudotsuga menziesii F.) o n the chemical composition of soil solutions and on the leaching of DOC and ions in drainage waters Jacques R * ,SylvainL , Dominique G, Benoợt P, Pascal B INRA Centre ... 70-year-old Douglas-ﬁr plantation on the chemical composition of soil solutions and on leaching of nutrients in drainage wat...

Ngày tải lên : 07/08/2014, 16:20

18
416
0

Báo cáo lâm nghiệp: "Eﬀects of soil mechanical treatments combined with bramble and bracken control on the restoration of degraded understory in an ancient beech forest" pptx

Báo cáo lâm nghiệp: "Eﬀects of soil mechanical treatments combined with bramble and bracken control on the restoration of degraded understory in an ancient beech forest" pptx

... dependent on the initial vegetation type and on soil seed bank composition. We therefore encourage additional experiments in diﬀer- ent stand and soil types in order to establish the generality of these ... on the considered soil parameters. Both disc and rotary ploughing induced an overall lowering of soil nutrient index and soil compaction, but diﬀe...

Ngày tải lên : 07/08/2014, 16:20

11
452
0

Báo cáo lâm nghiệp: "Eﬀect of single Quercus ilex trees upon spatial and seasonal changes in soil water content in dehesas of central western Spain" potx

Báo cáo lâm nghiệp: "Eﬀect of single Quercus ilex trees upon spatial and seasonal changes in soil water content in dehesas of central western Spain" potx

... 355 c  INRA, EDP Sciences, 2007 DOI: 10.1051/forest:2007012 Original article Eﬀect of single Quercus ilex trees upon spatial and seasonal changes in soil water content in dehesas of central western ... spring rainfall decreased soil water content quickly until June or July. Soil water content remained nearly constant during the rest of the...

Ngày tải lên : 07/08/2014, 16:21

10
459
0

Báo cáo lâm nghiệp: "Eﬀects of resource availability on condensed tannins and nitrogen in two Quercus species diﬀering in leaf life span" doc

Báo cáo lâm nghiệp: "Eﬀects of resource availability on condensed tannins and nitrogen in two Quercus species diﬀering in leaf life span" doc

... Available online at: c  INRA, EDP Sciences, 2007 www.afs-journal.org DOI: 10.1051/forest:2007021 Original article Eﬀects of resource availability on condensed tannins and nitrogen in two Quercus species ... radiation), at two water regimes (500 and 800 mm) and with two nutrient availabilities (standard substrate and 7% increase in soil N). The concentratio...

Ngày tải lên : 07/08/2014, 16:21

7
411
0

Báo cáo lâm nghiệp: "Spatial dynamics of late successional species under Pinus nigra stands in the northern Apennines (Italy)" pps

Báo cáo lâm nghiệp: "Spatial dynamics of late successional species under Pinus nigra stands in the northern Apennines (Italy)" pps

... results of the spatial analysis of late- successional species regeneration in three plots of artificial Pinus nigra stands in the northern Apennines. For each species forming NR we describe both point ... 669679 â INRA, EDP Sciences, 2005 DOI: 10.1051/forest:2005059 Original article Spatial dynamics of late successional species under Pinus nigra...

Ngày tải lên : 08/08/2014, 00:22

11
326
0

Báo cáo lâm nghiệp: "Environmental control of CO assimilation rates 2 and stomatal conductance in five oak species growing under field conditions in Greece" ppsx

Báo cáo lâm nghiệp: "Environmental control of CO assimilation rates 2 and stomatal conductance in five oak species growing under field conditions in Greece" ppsx

... efficiency and CO 2 compensation point associated with midday stomatal closure and midday depression of net CO 2 exchange of leaves of Quercus suber. Planta 1 62, 193 -20 3 Tenhunen ... patterns in forest stands of lobolly pine (Pinus taeda L). In: Abstract collection of the international workshop on Ecophysiology and Genetics of...

Ngày tải lên : 08/08/2014, 18:21

10
236
0

Báo cáo lâm nghiệp: " The role of glutamine synthetase, glutamate synthase and glutamate dehydrogenase in ammonia assimilation by the mycorrhizal fungus Pisolithus tinctorius" ppt

Báo cáo lâm nghiệp: " The role of glutamine synthetase, glutamate synthase and glutamate dehydrogenase in ammonia assimilation by the mycorrhizal fungus Pisolithus tinctorius" ppt

... The role of glutamine synthetase, glutamate synthase and glutamate dehydrogenase in ammonia assimilation by the mycorrhizal fungus Pisolithus tinctorius J.L. Kershaw G.R. ... inhibition by MSX. The increase in the glutamate pool appeared to indicate assimilation of ammonia into glutamate by GDH activity. Inhibition of gl...

Ngày tải lên : 09/08/2014, 04:20

5
360
0

Từ khóa: