应美国加利福尼亚州水资源部的邀请,我委组团于1997年7月15～30日,对加利福尼亚州的水政策和管理进行了实地考察。1 加州水资源及其利用现状加利福尼亚州地处美国干旱、半干旱地区。该州总面积45万 km~2,人口约2600多万,年均径流总量876亿 m~3,人均径流量3370m~3。径流来源于降雨和降雪。加州水资源的时空分布不均,几乎所有的降雨和降雪都集中在每年11月 At the invitation of the California Department of Water Resources, the delegation of our delegation conducted a field visit to California’s water policy and management from July 15 to July 30, 1997. 1 California Water Resources and Utilization Status California is located in arid and semi-arid areas of the United States. The total area of ​​450000 km ~ 2, the population of about 2600 million, the average annual runoff of 87.6 billion m ~ 3, per capita runoff 3370m ~ 3. Runoff comes from rainfall and snowfall. California’s water resources are unevenly distributed in time and space, with almost all rainfall and snowfall concentrated in November each year