Overwhelming is the word to describle What happened in the Jiangsu-Anhui area in the last summer. This paper focused on the analysis of some patterns, characteristics and forming factors for the urban floods and waterlogging.
In this paper, the grey systematic analysis method is used to study and analyse the water and sediment data at the middle reaches of the Huanghe River.
Sweltering and cold summer at the lower reaches of the Changjiang River is another im-portant disastrous weather phenamenon in addition to drought-waterlogging.
The structure and dynamics of land resources system in the shelter forest region in the Northeast Plain is discussed according to the remote sensing and statistical information from the typical profiles and spots.
The Shacheng Bay is a typical drowned valley bay which extends 40km into the land. The upper section of the bay has a broad hinterland where the muddy beaches and tidal branching channels are widely distributed.
On the basis of a systematic analysis and comparison of the methods and their relation-ships in the studies of regime relation, the main difference and their essential relations are dis-cussed.
