Discovery showed that some of the rivers in Lee’s Ferry area run on bedrocks while some are on the alluvium,based on geomorphology,the different kinds of chann
Aiming at the complexity of ecological environment risk of flood disaster,the life cycle of flood disaster is defined based on the relevant literatures,which is
Using ecological footprint method based on net primary productivity( NPP),the ecological footprint,ecological carrying capacity and ecological deficit / surplus
Yield and quality of sugar orange are closely related to meteorological conditions, especially the low temperature and cold injury in mature period of fruit. To
By analyzing climate condition during growth period of tobacco in Yuxian,scientific and reasonable production management measures are made. For meteorological d
The rail weighbridge system of a railway freight station is introduced firstly,and then the earthing method for protection of the rail weighbridge system agains