Báo cáo lâm nghiệp: "Nursery fertilisation affects the frost-tolerance and plant quality of Eucalyptus globulus Labill cuttings" ppsx
Báo cáo lâm nghiệp: "Nursery fertilisation affects the frost-tolerance and plant quality of Eucalyptus globulus Labill. cuttings" ppsx
... 10.1051/forest:2007071 Original article Nursery fertilisation affects the frost-tolerance and plant quality of Eucalyptus globulus Labill. cuttings Manuel Fern ´ andez a * , Celia M arcos a ,RaúlTapias a , ... how nursery fertilisation affects the field performance of plants. This led us to study the effect of three mineral nutrients (N, P and K) on both plant...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp: "Integrating revenues from carbon sequestration into economic breeding objectives for Eucalyptus globulus pulpwood production" ppt
... was to maximize the NPV per hectare of growing E. globulus in plantation. The NPV of plantings between 2004 and 2012 (to the end of the first commitment period) was calculated over the period 2004 ... improvement of E. glob- ulus in Australia was available, and secondly, there was a well defined system already available for the assessment of the quantity of carbo...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Extended length rotation to integrate timber and pine nut production with the conservation of structural diversity in a Pinus pinea (L.) forest" pdf
... The standard errors of the block prediction ranged between 2.5–10.2% for the estimated SI and between 5.0–14.1% for the estimated age. The distribution of the age of the dominant strata and the ... overlapped with the diagram of the four rot risk classes (RC1, RC2, RC3 and RC4) as a function of the age and the dominant height of the stand using t...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Evaluation through a simulation model of nutrient exports in fast-growing southern European pine stands in relation to thinning intensity and harvesting operations" doc
... state of the standard stands over time allowed to estimate the stand table before and after thinning, and also the temporal dynamics of nutrient content in tree biomass. A full cov- ering of the ... [28], and indicates the critical role of P in the nu- trient dynamics of pine stands [45]. The high amounts of soil nitrogen content and nitrogen fixation in the...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp: "Oaks in a 2 high-CO world" potx
... of the impact of increasing CO 2 is very difficult, however, because of the long-term nature of CO 2 effects and the myriad potential interactions between CO 2 and other ... Analysis of the effect of increased CO 2 on the biomass, community struc- ture and nutritional status of the rhizosphere micro- biota of white oaks, long...
Ngày tải lên: 08/08/2014, 18:21
Báo cáo lâm nghiệp: "Short Communication Differences in the structure, species composition and diversity of primary and harvested forests on Changbai Mountain, Northeast China" ppsx
... forest occurs in the cooler region of the eastern Eurasian continent, extending across the coastal areas of eastern Rus- sia, the Korean Peninsula, and the eastern portion of northeastern China ... reflect the typical composition of the climax stage of a broadleaved-Korean pine mixed forest (Z et al. 2007). However, these seven tree species ac- counted for onl...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Coarse woody debris carbon stocks in natural spruce forests of Babia hora" potx
... volume of the log in m 3 , h – length of the log in m, g 1/2 – cross-sectional area at ½ length of the log in m 2 . Total volume of coarse woody debris was given as a sum of the volumes of standing ... in the stage of maturity and de- cay classes 2 and 8 (Figs. 3a and 3b). In the stage of breakdown, large differences in the deadwood volume in early and...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "Red deer density in the air-polluted area of forest ecosystems in the Krušné hory" pdf
... period of 160 days of the pellet group persistence in the environ- ment using the FSC method was derived from the paper of S et al. (2004) and f was the amount of daily defecation rates of the ... How- ever, the knowledge of a defecation rate and a pe- riod of the faecal pellet persistence in the environ- ment is necessary for the estimate (M 1...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "Preliminary study on phloemogenesis in Norway spruce: influence of age and selected environmental factors" ppsx
... by the Ministry of Education, Youth and Sports of the Czech Republic, Project No. MSM 6215648902, and by the Ministry of the Environment of the Czech Republic, Project No. SP/2d1/93/07, and ... is not the number of cells but the timing of their for- mation. When the results obtained in the old stand were compared with the results of other authors, it...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "Forest visitors’ opinions on the importance of forest operations, forest functions and sources of their financing" docx
... nevertheless, significantly limited and even impaired by their demands as they increase the costs of timber production and lower the revenues. By persisting on these suggestions the respondents would paradoxi- cally ... proportion of respondents think that the in- Table 1. Sources of finance for non-market forest functions from the point of view of the visitors (fr...
Ngày tải lên: 07/08/2014, 10:21