Báo cáo lâm nghiệp: " Effects of intensive versus no management strategies during an outbreak of the bark beetle Ips typographus (L ) (Col : Curculionidae, Scolytinae) in the Tatra Mts in Poland and Slovakia" ppsx

... article Effects of intensive versus no management strategies during an outbreak of the bark beetle Ips typographus (L. ) (Col. : Curculionidae, Scolytinae) in the Tatra Mts. in Poland and Slovakia Wojciech ... districts: Łysa Polana and Morskie Oko in TPN (Poland) and Javorina in TANAP (Slovakia). The total study area c...

Ngày tải lên: 08/08/2014, 00:22

... Einig W., Keil R. & Fink S. (198 9) Energy status and carbon partitioning in spruce: specific changes in relation to needle age and degree of needle loss. In: International ... Plants and Pollutants in Developed and Developing Countries. (Öztürk M., ed .), Izmir, Turkey, pp. 487-508 McLaughlin S.B. & McConathy R.K. (198 3)...

Ngày tải lên: 09/08/2014, 04:20

... twigs and of the sapwood in the trunk over the experimental period, and extending into the following year, are presented in Figure 5. Over the course of the drought, R w of the xylem of the previous-year ... trees reaching 7 500 and 6 800 respectively and in the control trees 5 500 and 4 800 (Figs. 4c and 4d). 3.3. Xylem embolism The relative wat...

Ngày tải lên: 08/08/2014, 01:22

... dividing the runoff into components using the analysis of hydrograph by separation its recession limb and determining only the runoff con- stituents and their comparison also in the process of ... Drainage channels. Praha, ČSNI 1993. (in Czech) Drainage (197 3 ): Principles and applications. Part II – eo- ries of drainage and watershed runoff. Wageningen, Interna-...

Ngày tải lên: 07/08/2014, 03:22

... content in birch leaves was demonstrated by the analysis of its level in the dry matter of leaves during the spring season. e amount of nitrogen increased nonlinearly with the increasing rate of ... = 0.00 5). Insect attack increased with the increasing mean content of nitrogen in the dry matter of leaves from variant T0 (24.8 mg/g) to variant T2 (32 mg...

Ngày tải lên: 07/08/2014, 10:21

... carbon and nitrogen (Figs. 7 and 8) in forest floor occur in the spruce stand. e lowest C/N ratio in forest floor (Fig. 9) occurs under the 110-year spruce stand (26. 0) and in the organo- mineral ... ex- changeable and actual reactions of soil (Figs. 3 and 4) decreased from L to H in all stands. e lowest values in forest floor (4.0 and 3. 4)...

Ngày tải lên: 07/08/2014, 10:21

... substrates commonly used in the nursery: ( 1) a mixture of peat and vermiculite (p/v) 1:1 (v:v) and ( 2) a mixture of peat and composted pine bark (p/pb) 1:1 (v:v) (see Tab. I for substrate analyses). The peat ... (Figs. 2a and 2b). Tabl e II. ANOVA significance levels for the factors inoculation (A) and type of substrate (B), and interaction between th...

Ngày tải lên: 08/08/2014, 00:22

... studied the correlation existing between the annual and the seasonal rainfall and the annual trunk growth, and the only correlation shown is that of the rainfall values in the spring season, there ... that enough water is supplied with the normal rainfall [23, 25] and so that they can handle a cloudburst originating a great runoff [1, 21]. On the other hand, the...

Ngày tải lên: 08/08/2014, 00:22

... length and number of nodes of the largest (max .) offspring shoot, the MDR, MLR and MNR, and the sums of offs- pring-shoot diameters, lengths and numbers of nodes for experiments 1, 2 and 3 (see ... (Figs. 1 and 2) and the following treatments applied in August 2000 (mid-winter), before the beginning of the 2000–2001 growing season: (t. 1) clippi...

Ngày tải lên: 08/08/2014, 00:22

... 2). No seedlings initiated the third flush under HS and MS while 21 and 71% of seedlings initiated the third flush under LS and FL, respectively. Light level affected (p < 0.00 1) the RCD and ... photochemical quenching (q P ); (B) non- photochemical quenching (NPQ); (C) quantum yield of PS II (φ PS II ); and (D) electron transport rate (ETR). The symbol...

Ngày tải lên: 08/08/2014, 00:22