The Water Balance of Picea Crassifolia Forests in Qilian Mountains Based on Spatial Data Structure
The Water Balance of Picea Crassifolia Forests in Qilian Mountains Based on Spatial Data Structure
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发表时间：
2006
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通讯作者：
Niu Yun
中科院分区：
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作者：
Niu Yun
空间数据结构的建立包括系统功能与数据的关系、数据的分类与编码、数据的导入与编辑等。本文研究了降雨、截留、穿透雨、树干径流的分布与变化规律，结果表明，祁连山青海云杉（Picea crassifolia）年降水量为433.5mm，穿透雨为287.37毫米;树干径流量为0.294 mm，截留量为145.83 mm，分别占总降水量的66.29%、0.068%和33.64%，径流量为239.98 mm，占总蒸散量的55.36%，土壤贮水量为156.54 mm，枯落物贮水量为23.63 mm，枯落物贮水量为7.92 mm，占总蒸散量的36.11%。分别占降水量的5.45%和1.83%。
The establishment of spatial data structure includes the relation between the system function and the data,the classification of data and the codes,the importation of the data and edit etc.This text researched the distribution and variety regulation of precipitation,interception,throughfall,stemflow runoff,evapotranspiration of Picea crassifolia in Qilian Mountains.The results indicated that the total precipitation was 433.5mm and the throughfall 287.37 mm;stemflow 0.294 mm,interception 145.83 mm,taking up to 66.29%,0.068% and 33.64% of the total precipitation respectively.and the runoff was 239.98 mm which took up to 55.36% Evapotranspiration.water storage in soil and that in litter were 156.54 mm、23.63 mm and 7.92 mm respectively.Taking up to 36.11%,5.45% and 1.83% of the precipitation respectively.