Tectonic movements and climate changes are two main controllers on the development oflandform. In order to reconstruct the history of the evolution of the landf
Lunan stone forest is a kind of typical karst in China, which is mainly developed underred soil. In the winter of 1999, three study sites were chosen in stone f
Based on the information from forest resources distribution maps of Luoning County of1983 and 1999, six indices were used to analyze spatial patterns and dynami
Studies indicate that the climate has experienced a dramatic change in the Heihe RiverBasin with scope of temperature rise reaching 0.5-1. 1°C in the 1990s com
El Nino and La Nina are the events concerned internationally. The correspondingrelationship between El Nino events, temperature, precipitation and runoff in the
The boundary between subtropical zone and temperate zone is not only important inphysical geography, but also attractive in agricultural production. Seven soil
According to the measured data of typhoons going over the Chinese coasts in 1949-2002,a statistic relative equation showing the relation between the central atm