Relationships between nitric oxide response signal and external factors during the early interaction between Pinus thunbergii and Bursaphelenchus xylophilus. Canopy conductance characteristics of poplar in agroforestry system in west Liaoning Province of Northeast China. Dynamic change of Yulania sap flow before dormancy in response to environmental factors. TRANSPIRATION RATE OF CONIFEROUS AND BROADLEAF YOUNG TREES AS A FUNCTION OF WATER POTENTIAL OF THEIR LEAVES AND OF ENVIRONMENTAL FACTORS Nitrogen fixation potential of biological soil crusts in southeast edge of Tengger Desert, Northwest China. Phytoplankton’s community structure and its relationships with environmental factors in an aquaculture lake, Datong Lake of China.