Báo cáo lâm nghiệp: "Earthworms (Lumbricidae) of an air-polluted area affected by ameliorative liming" pdf

... 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

... efficient, followed by soybean oil and rapeseed oil. Durability of C. japonica and F. crenata wood specimens has been enhanced by application of linseed oil alone but not enough to reduce termite’s attack of ... element of the mix, we followed the amount of leached boron along the leaching procedure by using In- ductively Coupled Plasma analysis (ICP) of leachates, leached and...

Ngày tải lên: 07/08/2014, 16:21

... cohesion-tension mechanism and the acquisition of water by plant roots, Ann. Rev. Plant Physiol. Mol. Biol. 52 (2001) 847–875. [25] Swanson R.H., Numerical and experimental analysis of implanted- probe ... understand sap trans- port dynamics in view of optimization and improvement of traditional measurement techniques via heat sensors. The application of thermal measurements for t...

Ngày tải lên: 07/08/2014, 16:20

... H 2 SO 4 . 2.3. Sampling and chemical analysis Needles were collected in the dormant season from the upper third of the crown from randomly selected dominant trees by helicopter or tree climbers and sampled ... effects of forest liming are the deacidification of soil and seepage water, and the increase in Ca and Mg sup- ply of the soil [2], which may have been decreased by vari- ous...

Ngày tải lên: 07/08/2014, 16:20

... establish- ment and canopy cover occur only in response to human action: the removal of livestock, and cessation of the normal agricul- tural practice of periodic clearance of scattered shrubland that continually ... pasture land and for indigenous shrubland undifferentiated by species, with standard errors of the mean (SE) derived directly from the GLM analysis. The present analy...

Ngày tải lên: 08/08/2014, 00:22

... Relationship (A) between daily mean soil respiration (R) and mean soil temperature (T) at a depth of 10 cm and (B) between the ratio of mean soil respiration and mean soil volumetric water con- tent ... years and the annual means of daily soil temper- ature at 10-cm depth in 2001 was 0.4 °C higher than in 1997. In contrast, soil water content decreased earlier in 2001 than in Table I. S...

Ngày tải lên: 08/08/2014, 01:22

... software for analysis of variance (ANOVA), and Newman-Keuls tests for comparisons of mean values (significance for P < 0.05). The model for constant potential weight loss is represented by ... climate, with a mean annual temperature of 19.1 °C and a relative humidity of 81%. The mean annual precipitation is 1 749 mm, mainly occurs from March to August. Mean annual eva- potranspir...

Ngày tải lên: 08/08/2014, 01:22

... 3). 40 60 80 100 120 140 160 Abundance (pcs·m –2 ) 0 20 B V MV VR ZBK ZSM Regeneration types Fig. 1. Mean abundance of earthworm species in forest stands of the Kienhaida Nature Reserve and at sites affected by the site ... selected stands created a dense network within an area of about 2 km 2 . Sam- pling was carried out in the area between mounds and on the mounds of pi...

Ngày tải lên: 07/08/2014, 10:21

... Statsoft Inc., STATISTICA (data analysis software system), version 6, Statsoft Inc., Tulsa, 2001. [59] Stieperaere H., Fransen K., Standaardlijst van de Belgische vaatplanten, met aanduiding van ... explained by explana- tory variables (according to the Canonical Correspondence Analysis) and level of significance (Monte Carlo test). Explanatory variable Variance explained P-level by sing...

Ngày tải lên: 07/08/2014, 16:20

... to surfactants [5, 11, 15, 19–21]. In all species Table III. Significance levels of two- and three-ways analyses of variance of the effects of treatments (deionized water; sea water; and 5 to ... Truman R., Lambert M.J., Salinity damage to Norfolk island pines caused by surfactants. I. The nature of the problem and effect of potassium, sodium and chloride concentration on uptake...

Ngày tải lên: 08/08/2014, 00:22