Composition and characteristics of weed community in turf of Pearl River Delta Region in spring

Rapid convergence of population and increase in standards of living result in huge urban domestic water consumption in Pearl River Delta region.

In pearl river delta region,the types of groundwater were complex,the characteristic of groundwater chemistry was variational,water quality of bedrock fissure water and karst water was fine due to their intense hydraulis alternation,water quality of quaternary pore water was relatively bad as a result of slow flowoff.

The interaction of the worship of "North Monarch" in Pearl River Delta and the social and economic development during the Ming-Qing Dynasties;

Analysis on State of Insufficiency of Cultivated Land in the Pearl River Delta

The concentrations and distributions of three sorts of quinolones(norfloxacin,ciprofloxacin and enorfloxacin) in water,sediments and the tissues of 8 kinds of fishes from 7 sites in Pearl River Delta aquaculture regions(freshwater and marine) were determined by high performance liquid chromatography(HPLC) with fluorescence detector.

The New Exploration of Residence Regional Design in Pearl River Delta Area;

After analyzing the historic earthquake catalogue, present seismicity and observed precursor data of Pearl River Delta area, we consider that it will be in a quiet period with low-level seismic activity in some years to come.

The NEE striking faults are the main active fults in the Pearl River Delta area.

Evaluation of Level of Service of Intercity Highways in Zhujiang Delta;

According to statistical principle, the characters of highway traffic compositions and speed distribution are put forward by analyzing a great deal of field survey traffic flow data in Zhujiang Delta in this paper Speed?flow curves for freeways and arterial highways are presented through nonlinear regression on traffic flow data observed in the regio

With a case study at Guangzhou city, the present situation and characteristics of the urban soil and water loss in Zhujiang delta area are illustrated.

Problems and measures for hotel business in Pan-Pearl-River Delta region;