1水库来水情况官厅水库上游流域地区经济形式多以农业种植业为主,只有少数重工业地区,径流总量对人类社会活动影响较为敏感。建库以来水库实际入库水量逐年减少:1954—1959年平均入库水量21.04亿m3,60年代13.21亿m3,70年代8.33亿m3,80年代4.23亿m3,90年代3.13亿m3。进入21世纪 1 The situation of reservoir water In the upper reaches of Guanting Reservoir, most of the economic forms in the basin are mainly agricultural planting. Only a few heavy industrial areas, the total amount of runoff is more sensitive to human social activities. The actual amount of water storage in the reservoir has been decreasing year by year since the establishment of the reservoir: the average water storage volume from 1954 to 1959 was 2.104 billion m3, that of the 1.331 billion m3 in the 1960s, 833 million m3 in the 1970s, 421 million m3 in the 1980s and 313 million m3 in the 1980s. Enter the 21st century