Environmental Engineering Reference
In-Depth Information
T
able 6.4
Main Features of the Yellow River Delta based on conditions in the mid 1990s
Location
Northeast Shandong Province
Longitude
118°07'-119°10' East
Latitude
36°55'-38°12' North
Climate
Monsoon type continental climate
Temperature
-19 - +39°C with mean value of 12.3 C
Frost-free period
211 days
Ice-free period
190 days
Coastal line
350 km
Marine tide
M2 type with average difference 0.8-1.5 m
Annual precipitation
601 mm
Annual evaporation
About 1,900 mm
Total population
1.62 million
8053 km
2
Total land area
190 p/km
2
Population density
Birth rate
1.033%
Death rate
0.544%
Rate of population increase
0.488%
Cultivated area
236,000 ha
Total grain production
870 million kg (1993)
Regional GNP
1st industry (agriculture)
2nd industry (industry)
3
rd
industry (service)
RMB 19.2 billion (1993)
RMB 2.13 billion
RMB 13.73 billion
RMB 2.06 billion
Regional GNP per capita
12,000 RMB (1993)
Water resources
The Yellow River and local water
30.9 billion m
3
Annual runoff
3.8 billion m
3
(with sediment less than 30 kg/m
3
)
Usable water
0-100 m
3
/s
Discharge in dry season (11-6)
2000-6000 m
3
/s
Discharge in flood season (7-10)
10,000 m
3
/s
Flood with 40 years recurrence interval
Annual sediment load
0.7-1.0 billion tons
Annual sediment deposition
0.5-0.7 billion tons
20 km
2
Annual created new land
400 million m
3
Capacity of water storage
1.7 billion m
3
Annual water consumption
Oil reserves
3.2 billion tons
Oil production
33 million tones per year
25.7 billion m
3
Natural gas reserves
Salt reserves
580 billion tons
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