199. 876 t/hm2, 7. 60 t/(hm2. a) and 0.0380 , respectivily of L.gmelinii forest. The biomass, productivity and NP/B of Larix spp. population are 214. 31 t/hm2, 11. 44 t/(hm2. a) and 0. 053 4, respectively of L.principis-rupprechtii population;
The dynamic analysis on the landscape of Laoshan beauty spot was carried out with the support of ARC/INFO, the forest type map and field survey data of 1983, 1991 and 2001. The result showed that the landscape diversity of Laoshan beauty spot was low, and the whole landscape area was held above 80 percent by Larix spp.
From analyzing the structure and property of larch wood, present production state of small-scale larch plywood factory, results show that the larch structure and property is suitable for plywood, some unsuitable factors can be admitted by reasonable production techniques.
In our experiments, one-year-old Larix olgensis seedlings were cultivated in sand, and supplied with solutions with different concentrations of nitrate or phosphate.
mongolica, Pinus koraiensis and Larix gmelinii) and natural secondary forests (Fraxinus mandshurica, Quercus mongolica and Populus davidiana).
The results showed that the river flow increased in the initial ten years after forest harvesting, but decreased gradually with the growth and crown closure of the Larix gmelini plantations.
Density structure and growth dynamics of a Larix principis-rupprechtii stand for water conservation in the Wutai Mountain Region
To discover the site adaptability and density suitability of Larix principis-rupprechtii as a water conservation forest in Wutai Mountain, Shanxi Province, the growth process and diameter distribution characteristics of 10-year-old artificial L.
The role of readily hydrolyzable polysaccharides of larch wood in manufacture of board materials
Role of readily hydrolyzable polysaccharides of larch wood in production of board materials is studied.
The quick determination method of resin content in larch wood
The resin content in larch wood is usually determined by the traditional Benzene-Alcohol Extract Method (BAEM).
GCP and APP were used as flame retardants for poplar wood and larch wood, and their flame retardancy(OI), permeability (Surface electron spectroscopy), water-repellency and corrosion toward nail evaluated.