Relationship between Mean DBH,Volume and Stand Age of Broad-leaved Woodland in Fujian Province;

Study on Interpreting Model of Chinese Fir Stand Volume Based on RS and CIS Technologies;

Forest Resource Classification and Volume Inversion Based on SPOT5;

The community structure, stand volume and plant diversity of larch plantation (22 a) and natural swamp-forest were studied by using transect methods along the swamp-forest water environment grads in Daxing an mountains.

A method of artificial neural network and a model of three level feed toward back propagation neural network of variable density volume prediction for the Chinese fir are introduced, which could be used to simulates the nonlinear relation among site quality?stand age?stand density and stand volume.

Based on the data of continuous forest inventory of Henan Province in 2003,the forest biomass and productivity in Henan are estimated using the biomass expansion factors(BEF,defined as theratio of all stand biomass to growing stock volume) of various forest types.

The results indicated that copper accumulation in the tissues increased with the elapse of time at the concentration of 0.

Effects of species and concentration of total organic carbon(TOC) in the seawater on the accumulation of copper,lead and cadmium in visceral mass, muscle and gills of Paralichthys olivaceus when the copper,lead and cadmium concentrations were maintained at 0.

In order to evaluate the impacts of forest vegetation on rainfall-runoff in a forest watershed in area of 834 km2,two quantitative indexes of forest cover,cover ratio and timber volume were adopted,and they were divided into two grades:(1) forest cover ratio ≥ 60% and timber volume ≥5000(m3/km2);(2) forest cover ratio <60% and timber volume <5000(m3/km2).

An exposure experiment was conducted to study the effects of different concentrations of copper (Cu 2+) on copper accumulation and activities of Super Oxide Dismutase(SOD) in gills, muscle and viscera of Chlamys farreri.