文献类型：期刊文献

中文题名：不同地下水位植物蒸腾耗水特性研究

英文题名：Study on the Transpiration Characteristics of 10 Species of Plants under the Different Depths of Groundwater Level

作者：赵明[1] 郭志中[1] 王耀琳[1] 李爱德[1] 张德魁[1] 贾宝全[2]

第一作者：赵明

机构：[1]甘肃省治沙研究所;[2]中国林业科学研究院林业研究所

年份：2003

卷号：20

期号：4

起止页码：286-291

中文期刊名：干旱区研究

外文期刊名：Arid Zone Research

收录：CSTPCD;;CSCD:【CSCD2011_2012】；

基金：国家自然科学基金资助项目 ( 4 0 0 710 0 4;3 9990 490 )

语种：中文

中文关键词：沙漠地区;地下水位;植物;蒸腾耗水特性

外文关键词：non-weight lysimeter; transpiration; transpiration coefficient; Minqin county

分类号：Q945.172

摘要：在甘肃省民勤治沙站利用非称量测渗仪研究了梭梭、柠条等 10种沙区植物的蒸腾耗水特征。结果表明 ,各种植物 5a的总蒸腾量由大到小排列为 :沙枣、花棒、沙木蓼、柠条、梭梭、白皮沙拐枣 ;随植物年龄增长 ,蒸腾系数有上升的趋势 ,而蒸散系数有下降的趋势 ;在民勤沙区 6～ 9月是主要蒸腾季节 ,该时段的蒸腾量占全年蒸腾量的80 %～ 90 % ;植物的蒸腾量随年龄的增长而迅速增加 ,但增长幅度随物种不同而异。一般生长快的植物增长快 ,生长慢的植物增长慢。
By applying the lysimeters, in this paper the transpiration characteristics of 10 species of psammophytes and xerophytes including Haloxylon ammoderdron, Caragana korshinskii, etc. in Minqin County, Gansu Province, are investigated. The results show that, from the high value to the low value, the total transpiration of the tree species in 5 years is in an order: Elaeagnus angustifolia: 4 303.32 kg; Hedysarum scoparium: 3 287.02 kg; Atraphaxis bracteata: 1 406.29 kg; Caragana korshinskii: 1 312.34 kg; Haloxylon ammodendron: 1 138.27 kg; and Calligonum leucocladum: 726.86kg. The transpiration coefficients of the tree species are in a decrease tend but the evapotranspiration coefficients are in an increase tend with the increase of their age. The transpiration occurs mainly during the period from June to September, which occupies 80%～90% of the total annual transpiration. The transpiration of the plants was going up with the increase of age and the increment of transpiration rate varied with different species. The transpiration of the plants increases rapidly with the increase the plants' age, however, the increase amplitudes are different from the different species of plants. Both Calligonum leucocladum and Calligonum mongulicum can reach the maximum height in 2～3 years after planting, therefore, they have the quickest growth and the highest increment of transpiration.