Correlation between chemical element contents in tree rings and those in soils near tree roots in the southern suburbs of Beijing,China.;

In this paper, with an aim of better monitoring air pollution, we selected tree bark and tree ring core samples(willow, Salix matsudana)close to a smelting industry in northeast Beijing for magnetic studies.

The standardized(STD) chronology was established from tree ring data of \%Sabina przewalskii \%in east region of Qilian Mountains.

Dynamical character of weather evolutionary process on index of Lyapunov for tree growth-ring;

Dynamic character of climatic evolutionary process for tree growth-ring;

Law of solar activity and width of tree growth-rings were analyzed by wavelet.

Reconstruction of temporal variations of precipitation in Changbai Mountains area over past 240 years by using tree-ring width data;

Design of Tree-ring Micro-density Analysis System Based on LabVIEW;

Reconstruction of precipitation series from tree-rings at the northern slopes of south Tianshan mountains of Yili prefecture;

Reconstruction of humidity changes from tree rings in Liupan Mountains area since 1900