supported by the National Natural Science Foundation of China (40801004, 40671184);the Research Fund for the Doctoral Program of Higher Education (20070027019)
Based on the analysis of the correlation between the tree-ring width of Pinus tabulaeformis and the climate factors in the western Hedong sandy land of Ningxia, a conversion equation between the annual precipitation a...
Supported by the National Natural Science Foundation of China (Grant Nos. 40025105, 40331102, 40421101 and 40671184);US National Science Foundation (Grant No. NSF-ESH04-02509);Ministry of Science and Technology of China (Grant No. G2000048701);National Geographic Ministry of Society (Grant No. NGS-6938-00)
A 5.3 m lake core was drilled in Baahar Nuur Lake in the Ordos Plateau, and measurements of meangrain size, organic δ 13C (δ 13Corg), organic carbon content (TOC), C/N, carbonate content, carbonate δ 13C(δ 13Ccar)...