Báo cáo lâm nghiệp: " Production potential of Douglas fir at mesotrophic sites of Křtiny Training Forest Enterprise" ppsx

... Ministry of Agriculture of the Czech Republic, Project No. QG 60063. Production potential of Douglas fir at mesotrophic sites of Křtiny Training Forest Enterprise P. K Faculty of Forestry ... evaluates the production po- tential of Douglas fir growing at mesotrophic sites in mature stands of Křtiny TFE. In total, 29 mixed stands were assessed...

Ngày tải lên: 07/08/2014, 03:22

... site of the Křtiny Training Forest Enterprise. Journal of Forest Science, 49: 502–514. KANTOR P., KNOTT R., MARTINÍK A., 2001. Production potential and ecological stability of mixed forest ... so far, in the majority of sites of the 2 nd and the 3 rd forest vegetation zone of the Křtiny TFE, the extremely high vitality, stability and production potenti...

Ngày tải lên: 07/08/2014, 03:22

... in the soil was greater at the sites with low CMCase activity than that at the sites with high CMCase activity. Because the sites in cooler-climate sites had a high content of easily decomposable ... parameter of the equation: [flux] = A × e B[SoilTemperature] . b Estimated using the data of the nearest meteorological station (http://www.data.kishou.go.jp/). c Not determined....

Ngày tải lên: 07/08/2014, 16:20

... media, gelatin was not efficient (not shown). A group of proteins of about 46 kDa was purified from the forest litter and was a better inducer than gelatin, in spite of its lower ... ammonium sulfate fractionation and DEAE-cellulose chromatography were also labeled with FIT’C and used as a substrate and as inducers. Results Protease activity r...

Ngày tải lên: 09/08/2014, 04:20

... SCI., 55, 2009 (7): 299–305 299 JOURNAL OF FOREST SCIENCE, 55, 2009 (7): 299–305 Afforestation and reforestation of agricultural land were a common feature in different historical periods in ... and Douglas fir – Pseudotsuga menziesii) on soil properties on the reforested ag- ricultural land and compares their status with the soils of neighbouring forest stands at permanently...

Ngày tải lên: 07/08/2014, 03:22

... statistic, s – standard deviation, D – deviation of the model, df – degree of freedom, χ 2 – chi squared distribution Table 5. Classifi cation matrices expressing the correctness of classifi cation ... ratio of risk category 1 to category 0 was nearly 1:2. Underestimation by about 13% was detected for category 1 in the Kysuce re- gion, where this ratio was nearly 1:3.  is indicates...

Ngày tải lên: 07/08/2014, 10:21

... current status in Great Britain. Symposium of Zoological Society, London 58: 131–152. StatSoft, Inc. (2009): STATISTICA (data analysis software system), version 9.0. Available at www.statsoft.com. Received ... Acquired data were evaluated by Statistica 9.0 (Stat- Soft, Inc. 2009) and Microsoft Offi ce Excel statistical software. Diff erences in the red deer density between particular ye...

Ngày tải lên: 07/08/2014, 10:21

... significant part of spruce stands in this forest veg- etation level preserves the character of the natural forest. Long-term monitoring of natural forests of this forest vegetation level has ... the growth stage of the total number of individuals of natural regeneration. e natural regeneration structure of the stud- ied spruce virgin forest Nefcerka at altitudes of...

Ngày tải lên: 07/08/2014, 10:22

... S Age of areas (years)and category: R – reclamation S – succession Number of species forest species forest margin and brushwood species non -forest species Fig. 2. Number of forest and non- forest ... sites. It indicates significant differences in relation to forest ecosystems of the temperate climatic zone where the ratio of C biomass/C org soil is on average 1.13, h...

Ngày tải lên: 07/08/2014, 10:22

... rapid and accurate identification of poplar accessions and the determination of genetic relation- ships between these accessions at the DNA level. This paper explores the potential of adopting AFLP ... W a * a Laboratory of Cell Biology, College of Life Sciences, Nankai University, Tianjin 300071, P.R. China b Laboratory of Cell Biology, The Research Institute of Forestr...

Ngày tải lên: 07/08/2014, 16:20