1-2 NATURAL CONDITIONS
Item	1998
Territory
Area of Territory (10 000 sq.km)	960
Area of Sea (10 000 sq.km)	473
Average Depth of Sea (m)	961
Maximum Depth of Sea (m)	5377
Length of Coastline (km)	32000
Mainland Shore (km)	18000
Island Shore (km)	14000
Number of Islands	5400
Area of Islands (10 000 sq.km)	3.87
Climate
Distribution of Heat (Accumulated Temperature≥0℃)
Northern Heilongjiang and Tibet Plateau (℃)	2000-2500
Northeast Plain (℃)	3000-4000
North China Plain (℃)	4000-5000
Changjiang (Yangtze) River Drainage Area and the Area to the south of it (℃)	5800-6000
Area to the South of Nanling Mountain (℃)	7000-8000
Precipitation (mm)
Mid-Taiwan Mountain Area	≥4000
Southern China Coastal Area	1600-2000
Changjiang River Valley	1000-1500
Northern and Northeastern Area	400-800
Northwestern Inland	100-200
Tarim Basin, Turpan Basin and Qaidam Basin	≤25
Percentage of Climatic Zones to Total Area of Territory
Humid Zone (aridity<1.0)	32
Semi-Humid Zone (aridity 1.0-1.5)	15
Semi-Arid Zone (aridity 1.5-2.0)	22
Arid Zone (aridity>2.0)	31
a)The climate data refer to the average figures in many years.
b)Island area does not include that of Taiwan, Hong Kong and Macao.

---