Báo cáo lâm nghiệp: "Litterfall dynamics after a typhoon disturbance in a Castanopsis cuspidata coppice, southwestern Japan" pptx

... 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

... and in the Bieszczady and Świętokrzyskie Mountains (J, P Processes of loss, recruitment, and increment in stands of a primeval character in selected areas of the Pieniny National ... 115–131. JAWORSKI A. , KOŁODZIEJ Z., 2002. Natural loss of trees, recruitment and increment in stands of primeval character in selecte...

Ngày tải lên: 07/08/2014, 03:22

... In 1949, the Supported by the Ministry of Education, Youth and Sports of the Czech Republic, Projects No. VaV-SM/6/153/05 and MSM 6293359101. e evolution of natural floodplain forests in South ... relevés. The increasing trend in the number of recorded species may, however, also mean the movement of some of the ecologi- cal factors. In the case of floodpl...

Ngày tải lên: 07/08/2014, 03:22

... 210–218 JOURNAL OF FOREST SCIENCE, 57, 2011 (5): 210–218 Earthworms (Lumbricidae) of an air-polluted area aff ected by ameliorative liming E. K, L. M Faculty of Forestry and Wood Technology, ... carbon and nitrogen, exchangeable soil sorption and degree of base saturation of the sorption complex and avail- able nutrients P, Mg, Kand Ca) were determined for m...

Ngày tải lên: 07/08/2014, 10:21

... higher initial costs of mechanized harvesting machines, larger diameters and crowns of hardwoods, and the relatively steep terrain in Caspian forests, manual felling with a chainsaw is still ... a continuous time study on manual harvesting systems with a chainsaw model Stihl in a Caspian hardwood forest. (2) Estimate the production rates and costs o...

Ngày tải lên: 07/08/2014, 10:21

... The area is characterized by a subtropical climate and abun- dant rainfall throughout the year. Annual mean temperature is about 21.8 ◦ C. Annual mean rainfall is 2680 mm over last 30 years (Ex- perimental ... 707 c  INRA, EDP Sciences, 2006 DOI: 10.1051/forest:2006051 Original article Nutrient dynamics in decomposing needles of Pinus luchuensis after typhoon disturban...

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

... P1 and P2 together, confirmed that damage was an explanatory factor which was much sig- nificant than the other variables and factors available. Thus overall, the damage factor had both a statistical ... A risk of fork emergence was calculated for each of the damage levels. The relative risk of fork emergence, with its confidence limit (at 5% of risk level),...

Ngày tải lên: 07/08/2014, 16:20

... (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

... collected in the natural stand and in the Norway spruce plantation according to δ 13 Candδ 15 N, Breuil forest, (all sporophores, mean and stan- dard deviation for each group). (ASF) saprotrophic fungi ... were collected only in the natural stand, 24 were collected only in the Nor- way spruce stand and 13 were collected both in the natural stand and...

Ngày tải lên: 07/08/2014, 16:21

... M., Adiku S., Kakubari Y., In uences of environmental factors on the radial pro- file of sap flux density in Fagus cr enata growing at different el- evations in the Naeba Mountains, Japan, Tree Physiol. ... were probably intercepting enough light or had an above- average leaf area/basal area ratio. Vincke et al. [27] found that Ann. For. Sci. 64 (2007) 431–438 Available online...

Ngày tải lên: 07/08/2014, 16:21

... control of this trait appears to reach a maximum early in the life of trees and therefore maximum gains from selection can be obtained in the first-formed wood. In a 23 year-old radiata pine progeny ... until ring 18, while ear- lywood density followed an oscillating pattern of variation. In their study of families of radiata pine established in sever...

Ngày tải lên: 08/08/2014, 00:21

... 42]. Okinawa Island, especially in its northern part, is mainly covered by evergreen broad-leaved native forest dominated by Castanopsis sieboldii Hatusima ex Yamazaki & Mashiba (Fagaceae) and ... 245252 â INRA, EDP Sciences, 2005 DOI: 10.1051 /forest: 2005016 Original article Precipitation partitioning and related nutrient fluxes in a subtropical forest in Okin...

Ngày tải lên: 08/08/2014, 00:21

... (Kaminaka, personal communication). These data were obtained from a similarly aged (ca. 50 years) Castan- opsis cuspidata stand near the study site. This adjacent stand has almost same average ... litterfall after typhoon disturbance. Because disturbance- generated input can have a significant Table III. Comparison data of other Castanopsis forests in Japan. Locality Total li...

Ngày tải lên: 08/08/2014, 01:21

... xylocarpa (OX) and Castanopsis kawakamii (CK), and compared with that of an adjacent natural forest of Castanopsis kawakamii (NF, ~150 year old) in Sanming, Fujian, China. Mean annual total litterfall ... Ormosia xylocarpa (OX), and Castanopsis kawakamii (CK), and an adjacent natural forest of Castanopsis kawakamii (NF); (ii) quantify nutrient return through litterfall...

Ngày tải lên: 08/08/2014, 01:22