Báo cáo lâm nghiệp: "old hardiness as a factor for assessing the potential distribution of the Japanese pine sawyer Monochamus alternatus (Coleoptera: Cerambycidae) in China" pdf

... distribution of the Japanese pine sawyer Monochamus alternatus (Coleoptera: Cerambycidae) in China Rui-Yan M a, b , Shu-Guang H a ,Wei-NaK b , Jiang-Hua S a ,LeK a * a State Key Laboratory of Integrated ... saltuarirs in northeastern China, M. galloprovinialis in the whole of Europe except for Scandinavia and Siberia, and M. scutellatus...

Ngày tải lên: 07/08/2014, 16:20

... which can measure the distance as well, for instance by laser, the method of sorting is sufficiently precise and cheap. In addition, the method can be used for the meas- uring of distances in forests ... e form height is a ratio between the stem volume and the diameter at breast height. e method of measuring the diameter at a certain height of the tre...

Ngày tải lên: 07/08/2014, 10:21

... in compatible pollinated stigmas. The conca- navalin A- peroxidase reaction allowed the visualization of 15 stigmatic and pollinic glycoproteins. Differences were observed, according ... on pollinic and stigmatic proteins, known to be in- volved in male-female interactions (Gaude and Dumas, 1987). After silver nitrate staining, qualitative and quanti...

Ngày tải lên: 09/08/2014, 04:20

... climatic change. The aim of our paper is to statistically analyse interannual and seasonal variation of litterfall in a cork oak forest of the Montseny massif (Catalonia, north-eastern Iberian ... [13] have found an increasing variability in parameters based on tree rings during the last decades. The results of all these kinds of studies can be applied to cork-oak fore...

Ngày tải lên: 07/08/2014, 16:20

... clearly higher in HA and ST (the two sites with pines) than in GU and 2L, and all ratios tend to increase with years (two-way ANOVA using arc- sine-transformed ratios of individual traps; there ... site. The comparison of predator/prey ratios between sites and years was carried out using a two-way analysis of variance of the angular trans- form of the predator/prey rati...

Ngày tải lên: 08/08/2014, 00:22

... 3 Castanopsis-Schima forest Kaminaka et al. [12] Okinawa Island 7.74 – 5.02 3 Castanopsis-Schima forest Xu et al. [46] Mt. Tatsuta, Kumamoto 9.48 1.50 4.69 6 Castanopsis forest Kaminaka [11] Ibid. ... communication]. In 1992, the total lit- terfall decreased drastically, in spite of three typhoons in August. The total mass in 1993 was nearly twice that in 1992. As in 19...

Ngày tải lên: 08/08/2014, 01:21

... sinus) AURI: average angle of the two auricles at the lamina base (e.g. A- B-C, °) AVEIN: mean of the vein angles of the six largest lobes (e.g. K-G-D, °) ASIN: mean of the sinus angles of the six largest ... leaf was meas- ured and the leaf mass to area ratio calculated. 2.3. Statistical analysis The set of morphological descriptors included quantitative contin-...

Ngày tải lên: 08/08/2014, 01:22

... des insectes capturés a lieu aisément, par transparence, sur une surface vitrée éclairée par dessous. vague de « bonne adaptation au milicu » avancée par C HARARAS ( ... 293.

Ngày tải lên: 09/08/2014, 06:21

... association of the variable heavy chain (V H )with protein A was used as a surrogate for direct stability measurements. The V H domains in camelid heavy chain antibodies are most similar to the ... and characterizing individual mutant proteins, these combinatorial approaches offer the important advantage of simultaneously generating libraries of protein variants, thus...

Ngày tải lên: 19/02/2014, 12:20

... (LDA).Thisstatistical multivariate method is supervised. It searches for the variables containing the greatest interclass variance and the smallest intraclass variance, and constructs a linear combination ... Many parameters can be adjusted for increasing the efficiency of the algorithm. The data were analysed with a window of five wavenumbers, assuming that adjacent wav...

Ngày tải lên: 21/02/2014, 03:20