文献类型：期刊文献

中文题名：内蒙古乌兰布和沙漠主要灌木光合日变化特征比较研究

英文题名：Comparative Study on Diurnal Variation Characteristics of Photosynthesis of Main Shrubs in Ulanbuh Desert in Inner Mongolia

作者：刘芳[1] 黄雅茹[1] 陈海玲[1] 马迎宾[1] 葛根巴图[1] 董雪[1] 张晓燕[2]

第一作者：刘芳

机构：[1]中国林业科学研究院沙漠林业实验中心;[2]内蒙古自治区乌兰察布市四子王旗水利局

年份：2015

卷号：22

期号：3

起止页码：155-162

中文期刊名：水土保持研究

外文期刊名：Research of Soil and Water Conservation

收录：CSTPCD;;北大核心:【北大核心2014】；CSCD:【CSCD_E2015_2016】；

基金：中央级院所基本科研业务专项(CAFYBB2011005-6);中央级院所基本科研业务专项(CAFYBB2012003);国家林业科技推广项目([2012]31号)

语种：中文

中文关键词：乌兰布和沙漠;灌木;光合特性;日变化

外文关键词：Ulanbuh Desert ; shrub ;photosynthetic characteristics; diurnal variations

分类号：Q945.11

摘要：对乌兰布和沙漠耐旱植物沙拐枣属、柽柳属、锦鸡儿属的14种植物进行光合日变化特征研究。结果表明:(1)14种沙生灌木净光合速率日变化呈双峰型,峰值均出现在10:00与16:00,有明显的光合"午休"现象,且主要是由气孔因素引起的。净光合速率日均值排序为:柠条锦鸡儿>中间锦鸡儿>乔木状沙拐枣>多花柽柳>细穗柽柳>白皮沙拐枣>东疆沙拐枣>甘蒙柽柳>荒漠锦鸡儿>多枝柽柳>头状沙拐枣>长穗柽柳>狭叶锦鸡儿>红皮沙拐枣;(2)沙拐枣属、柽柳属蒸腾速率日变化呈单峰型,峰值分别出现在10:00,14:00,锦鸡儿属植物蒸腾速率日变化呈双峰型,峰值出现在10:00,16:00。蒸腾速率日均值排序为:多花柽柳>细穗柽柳>甘蒙柽柳>柠条锦鸡儿>荒漠锦鸡儿>中间锦鸡儿>多枝柽柳>白皮沙拐枣>长穗柽柳>乔木状沙拐枣>狭叶锦鸡儿>头状沙拐枣>东疆沙拐枣>红皮沙拐枣;(3)14种沙生灌木水分利用效率日变化均为双峰型,上午的水分利用效率高于下午,最高值出现在10:00,水分利用效率日均值排序为:乔木状沙拐枣>红皮沙拐枣>长穗柽柳>柠条锦鸡儿>白皮沙拐枣>头状沙拐枣>东疆沙拐枣>中间锦鸡儿>多枝柽柳>狭叶锦鸡儿>甘蒙柽柳>荒漠锦鸡儿>细穗柽柳>多花柽柳;(4)在相同的环境条件下,乔木状沙拐枣、长穗柽柳、柠条锦鸡儿对该区的干旱环境有相对较强的适应能力。
The diurnal variations of photosynthetic characteristics of 14 species of drought-tolerant plants including Calligonum L., Tamarix and Caragana Fabr. were studied in Ulanbuh Desert. The results showed that. （1） diurnal variations of net photosynthesis rates of 14 plants were double-peak curves, the peaks were at 10.00 and 16：00, respectively, and had obvious siesta phenomena of photosynthesis, and the impact factor was mainly stomatal change. Net photosynthesis rates decreased in the order of Caragana korshinskii Kom〉 Caragana intermedia Kuang et H. C. Fu〉 Calligonum arborescens Litv. 〉 Tamaricc hohenackeri Bunge〉 Tamarix leptostach ys Bunge〉 Calligonum leucocladum （ Schrenk ） Bunge〉calligonum east〉 Tamarix austromongolica Nakai〉 Caragana roborovskyi Kom. 〉 Tamarix ramosissima Ledeb. Calligonum caput-medusae Schrenk〉 Tamarix elongata Ledeb. 〉Caragana stenophylla Pojark. 〉Calligo- hum rubicundum Bge; （2） Calligonum L. and Tamarix transpiration rate changes were single-peak curves, the peaks were at 10..00 and 14：00, respectively, the species of the Caragana Fabr. transpiration rate was double-peak curves, the peaks were at 10.00 and 16：00, respectively. Transpiration rates decreased in the sequence of Tarnarix hohenackeri Bunge〉Tamarix leptostachys Bunge〉Tamarix austromongolica Nakai〉Caragana korshinskii Kom〉Caragana roborovskyi Kom. 〉Caragana interrnedia Kuang et H. C. Fu〉Tamarix ramosissima Ledeb. 〉 Calligonum leucocladum （Schrenk） Bunge〉 Tamarix elongata Ledeb. Calligonum arborescens Litv. 〉 Caragana stenophylla Pojark. 〉 Calligonum caput-medusae Schrenk calligonum east^Calligonum rubicundum Bge〉 （3） diurnal variations of water use efficiency were double-peak curves, water use efficiency in the morning was higher than in the afternoon, the peak appeared at 10：00, water use efficiency decreased in the order of Calligonum arborescens Litv. 〉Calligonum rubicundum Bge〉 Tamarix elongata Ledeb〉Caragana korshinskii Kom〉Calligonum leucocladum （ Schrenk） Bunge Calligonum caput-medusae Schrenk〉calligonum east〉Caragana intermedia Kuang et H. C. Fu〉Tamaria ramosissima Ledeb〉Caragana stenophylla Pojark〉Tamariac austromongolica Nakai〉Caragana roborovskyi Kom〉Tamarix leptostachys Bunge〉Tamariac hohenackeri Bunge; （4） under the same envi ronment conditions, Calligonum arborescens Litv. , Tamariz elongata Ledeb. and Caragana korshinskii Kom had relatively strong ability to adapt the arid environment.