CAJ | 학술논문

在植物生长旺季（七八月份），采用快速称质量法对青海共和盆地主要生态恢复树种垂榆（ Ulmus pumila var．pendula）、小叶杨（ Populus simonii）、柠条（ Caragana korshinskii）、沙棘（ Hippophae rhamnoides）、乌柳（ Salix cheilophila）、沙柳（ Salix psammophila）的蒸腾速率进行测定，探讨其蒸腾耗水规律。结果表明：垂榆、小叶杨、沙棘、沙柳蒸腾速率日进程均为单峰型曲线，柠条和乌柳为双峰型曲线，不同树种日均蒸腾速率由大到小的顺序为柠条、沙柳、乌柳、沙棘、小叶杨、垂榆；各树种不同方位叶片蒸腾速率峰值出现时间存在差异，不同方位叶片日均蒸腾速率由大到小的顺序为南面叶片、西面叶片、东面叶片、北面叶片；小叶杨日蒸腾耗水量可达93．556 kg，垂榆与20年生乌柳日蒸腾耗水量约为小叶杨的40％，灌木树种沙柳、柠条、沙棘耗水量较低。
재식물생장왕계（칠팔월빈），채용쾌속칭질량법대청해공화분지주요생태회복수충수유（ Ulmus pumila var．pendula）、소협양（ Populus simonii）、저조（ Caragana korshinskii）、사극（ Hippophae rhamnoides）、오류（ Salix cheilophila）、사류（ Salix psammophila）적증등속솔진행측정，탐토기증등모수규률。결과표명：수유、소협양、사극、사류증등속솔일진정균위단봉형곡선，저조화오류위쌍봉형곡선，불동수충일균증등속솔유대도소적순서위저조、사류、오류、사극、소협양、수유；각수충불동방위협편증등속솔봉치출현시간존재차이，불동방위협편일균증등속솔유대도소적순서위남면협편、서면협편、동면협편、북면협편；소협양일증등모수량가체93．556 kg，수유여20년생오류일증등모수량약위소협양적40％，관목수충사류、저조、사극모수량교저。
The experiment was conducted to measure the transpiration rate of six ecological restoration tree species , Ulmus pumi-la var.pendula, Populus simonii, Caragana korshinskii, Hippophae rhamnoides, Salix ch eilophila and Salix psammophila with thequick weighing method in Gonghe Basin in July and August when the plants grow vigorously.We revealed the law of their transpirationwater consumption.The diurnal changes of transpirationrate of U.pumila var.pendula, P.simonii, H.rhamnoides and S.psammophila show single-peak curves, while C.korshinks ii and S.cheilophila present a double-peak curve.The mean transpiration rates of C.korshinskii, S.psammophila, S.cheilophila, H.rhamnoides, U.pumila var.pendula and P.simonii are 7.82, 6.42, 4.68, 4.26, 3.62 and 2.70μg· cm-2 · s-1 , respectively.The peak time of transpiration rate of different directional leaves occur at different times, and the order of transpiration rate of different di-rectional leaves is southern leaf>western leaf >eastern leaf>northern leaf.The daily transpiration water consumption of P. simonii is as high as 93 556.75 g, the same index of U.pumila var.pendula and S.cheilophila is about 40%of P.simo-nii.The daily transpiration water consumption of S.psammophila, C.korshinskii and H.rhamnoides is at a low level.