Dynamical monitoring on the ecological forest stand volume in Minjiang watershed based on RS technology;

According to the comparable analysis of nine kinds of measurement method of stand volume on the same China-fir forest,this article provides the optimal methods in different application conditions.

It therefore, provides the referrence for detailed calculation of the stand volume.

Site level in Hexi-corridor area was divided into 4 types by comprehensive analyzing the growing stock of stand and soil productivity of all kinds of farmland shelterbelt.

Compilation of growth curve table of stand volume for dominant species in Linkou Forestry Bureau,Heilojiang,China;

Under-crown taper equation of form point method in combination with three dimensional point sampling with angle gauge for stand volume estimation.;

As a method of forest volume measurement, 3P sampling technology has been accepted in forestry field, but for the reason that two critical problems, precise monitoring of stand volume and fast generation of random data can t be solved well in traditional forestry resources monitoring, the technology has not been used widely for a long time.

After χ2 examination,the residual analysis and the log-linear simulating,relationships between stand stock and landform were analyzed.

After χ2 examination,the residual analysis and the log-linear simulating,relationships between stand stock and slope position were analyzed.

At the end of 1970s, remote sensing technology was introduced into China and has been used since then in the activities of forest resource inventory, especially in estimating forest stock volume.

With remote sensing technology being widely used in the investigation of forest resources,especially in the remote sensing estimation of the forest stock volume,remote sensing method can save time,work and budget in comparison with the traditional method.

A lot of foresters use this new technology in the activities of forest resource inventory, especially on estimating forest stock volume.