294 mm, interception 145.

By on site observation,the paper studies on the litter interception of protection forests in the Loess Plateau in the southwestern Shanxi Province.

Steric-hindrance pore model for separation of uncharged solutes by nanofiltration with molecular weight cut-off as parameters;

Method for obtaining molecular weight cut-off of nanofiltration membrane;

Although ultrafiltration is an efficient disinfection process for removing pathogenic microorganisms such as bacteria,viruses and parasites, it is relatively ineffective in removing the natural organic matter because of its high molecular weight cutoff.

Preliminary analysis on factors influencing canopy interception in Jinyun mountain;

Characteristics of canopy interception and throughfall of Picea schrenkiana var.tianschanica(Rupr.)Chen et Fu

The results showed that there is a linear regression between the throughfall and precipitation,a logarithmic regression between the throughfall coefficient and precipitation,a power regression between canopy interception and precipitation,a logarithmic regression between the interception rate and precipitation,a binary linear regression for canop.