However,it s applications in forestry field especially in valuable forestry resource management system(for example,the famous wood and ancient trees management system) in our country is still nearly blank.

Restoring Techniques Study of the old trees in Henan;

The protection significance and protection measures of the old trees in Henan;

Investigation on resources of ancient and famous trees in Jiuhua Mountain Scenic Resort of Anhui Province;

The survey method of ancient and famous trees by total station;

Improved survey method of ancient and famous trees;

Protection of Ancient and Famous Trees in City Based on the Theory of Ecology ——Taking the Protection of the Oldest Ancient Bischofia polycarpa in Dongguan City as an Example;

Investigation and protection of ancient and famous trees in college campus of Nanning;

Analysis on ancient and famous trees in Changchun district,China;

Geography information management system development of Changchun old and famous trees;

Old and famous trees are the witness of the history and culture, and also the gem left by nature and our predecessors.

Due to various reasons,people still has insufficient awareness of their scientific values and functions of old and famous trees in the past,and consequently had given poor protection and management to these resources them,which resulted in the trend of their decreasing number.

Ancient tree s protection and strong recovery in Jining;

Investigation on ancient trees in Jiaxing, Zhejiang province demonstrated that there are 373 ancient trees belonging to 47 species of 29 families, among which Lauraceae has the most, then Ginkgoaceae, Ulmaceae and Olea- ceae.