| 额济纳天然胡杨林水分利用效率动态变化研究 |
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| 引用本文： | 萨如拉,达布希拉图,张秋良,春兰. 额济纳天然胡杨林水分利用效率动态变化研究[J]. 内蒙古环境科学, 2009, 21(4): 36-40 |
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| 作者姓名： | 萨如拉 达布希拉图 张秋良 春兰 |
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| 作者单位： | 萨如拉,张秋良,春兰(内蒙古农业大学林学院,呼和浩特,010019);达布希拉(内蒙古赤峰市阿鲁科尔沁旗林业局,赤峰,025550) |
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| 基金项目： | 内蒙古自然科学基金重点项目《干扰格局下额济纳绿洲胡杨林生态用水机理研究》，教育部博士点基金项目《额济纳荒漠绿洲植物次生代谢物作用下森林恢复机制的研究》 |
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| 摘 要： | 黑河下游的额济纳绿洲是我国西北地区重要的生态屏障,也是当地人民赖以生存的自然资源,然而由于种种原因,这片绿洲正在衰败并且有消亡的危险.胡杨是典型的潜水旱中生植物,它虽然有较强的耐大气干旱、耐盐碱能力,其生长发育与水分条件的优劣有着十分密切的关系.本文通过研究额济纳天然胡杨的叶水势、蒸腾速率、光合速率的变化规律,综合分析其水分利用效率与叶水势的相关关系,了解胡杨树体内水分运移关系,为揭示胡杨生存现状和合理利用水资源提供理论依据,为合理保护额济纳绿洲胡杨林提供科学支持.
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| 关 键 词： | 额济纳 胡杨 叶水势 水分利用效率 |
THE RSESARCH ON DYNAMIC CHANGE OF WATER USE EFFICIENCY OF NATURAL DIVERSIFORM-LEAVED POPLAR IN E Ji Na AREA |
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| Sa Ru La Da Bu Xi La Tu ZHANG Qiuliang CHUN Lan. THE RSESARCH ON DYNAMIC CHANGE OF WATER USE EFFICIENCY OF NATURAL DIVERSIFORM-LEAVED POPLAR IN E Ji Na AREA[J]. Inner Mongolia Environmental Protection, 2009, 21(4): 36-40 |
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| Authors: | Sa Ru La Da Bu Xi La Tu ZHANG Qiuliang CHUN Lan |
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| Affiliation: | 1 The Forestry College of Inner Mongolia Agriculture University;Hohhot 010019;2 The Forestry Bureau of A Lu Ke Er Qing Banner of Chi Feng city;Chi Feng 025550 |
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| Abstract: | Through analysis of changing laws among leaf water potential,evaporation rate and photosynthesis rate,the correlative relations between water use efficiency and leaf water potential are exposed,and the water transportation relation in diversiform-leaved poplar is understood.It provides theoretical evidence for study of existence situation of diversiform-leaved poplar and scientific support of rational use of water resources. |
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| Keywords: | E Ji Na diversiform-leaved poplar leaf water potential water use efficiency |
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