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一、自然条件简述小柴旦盆地为干旱区小型内陆山间盆地。据附近大柴旦气象站资料,年的降雨量83毫米、蒸发量2178.4毫米(为降雨量的26倍)。盆地的水系不发育,河流仅塔塔棱河一条。该河发源于达肯大板山,注入小柴旦湖。在出山口处曾设流量观测站,有14年的流量观测资料。河水水量年变率小而季节性变化较大。11月至翌年3月为枯水期,4、5、10为平水期,6至9月为丰水期(图1)。河水出山口后大量入渗变为地下潜
First, a brief description of natural conditions Xiaochai Dan basin is a small inland mountain basin basin. According to the nearby Dachaidan weather station data, the annual rainfall of 83 mm, the evaporation of 2178.4 mm (26 times the rainfall). Basin water system is not developed, the river is only a Tata River. The river originated in the Dacan Shan, into the Xiao Qiaidan Lake. There is a traffic observation station at the exit, with 14 years of observation data. River water annual rate of change is small and seasonal changes. November to March next year is dry season, 4, 5 and 10 are flat water period, and June to September is wet season (Figure 1). A large amount of infiltration into the river after the river into a dive