Reference

Y. R. Zheng, L.H. Jiang, G. S. Zhou, Z. X. Xie, L. J. Chen, Y. J. Yu, H. Shimizu (2005): Model of the Net Primary Productivity of Terrestrial Ecosystems in China and ist Response to Climate Change. – Phyton, Annales Rei Botanicae, Horn – 45_4: 193 - 200.