准噶尔西部人工碳汇林原生荒漠植被梭梭蒸腾耗水研究 |
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引用本文: | 夏永辉,梁凤超,师庆东,张毓涛,张新平,赵福生,吕娜娜. 准噶尔西部人工碳汇林原生荒漠植被梭梭蒸腾耗水研究[J]. 安徽农业科学, 2014, 0(33): 11755-11759 |
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作者姓名: | 夏永辉 梁凤超 师庆东 张毓涛 张新平 赵福生 吕娜娜 |
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作者单位: | 1. 克拉玛依职业技术学院,新疆克拉玛依,834000 2. 乌鲁木齐气象卫星地面站,新疆乌鲁木齐,830011 3. 新疆大学绿洲生态教育部重点实验室,干旱生态环境研究所,新疆乌鲁木齐830046 4. 新疆林业科学院森林生态研究所,新疆乌鲁木齐,830000 5. 中国石油新疆油田公司,新疆克拉玛依,834000 |
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基金项目: | 国家基础研究重点发展规划项目 |
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摘 要: | 在克拉玛依造林碳汇基地外围,使用包裹式茎流计(Flow4)对梭梭(Haloxylon persicum Bge.)枝液流动态进行了监测;根据生物统计结果选取被测标准枝,标准枝基径在l~3 cm范围内;通过基径断面积和被测枝液流计算丛蒸腾耗水量,通过冠幅最为扩展纯量,利用丛蒸腾耗水量对灌丛群落耗水量进行了尺度转换.结果表明,在转化过程中,梭梭液流速率同枝基径、丛蒸腾耗水量同冠幅具有强相关性;克拉玛依造林碳汇基地蒸腾耗水量的背景值为3.25 t/(d·hm2);梭梭液流同太阳辐射、光合有效辐射、风速、空气湿度、土壤含水率呈极显著相关,是影响液流变化的主要因子,排列顺序为:光合有效辐射>太阳辐射>风速>土壤含水率>空气湿度;使用主导因子对梭梭液流通量进行拟合,方程为f=0.024PAR +6.859,R2达0.887.
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关 键 词: | 树干液流 蒸腾耗水 梭梭 荒漠 包裹式茎流计 |
The Research of Transpiration Water-consumption on Original Haloxylon Desert Vegetation around Planted Forest in Arid Region |
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Affiliation: | XIA Yong-hui,LIANG Feng-chao,SHI Qing-dong,ZHANG Yu-tao,ZHANG Xin-ping(Karamay Vocational College, Karamay, Xinjiang 834000;Urumqi Meteorological Satellite Ground Station, Urumqi, Xinjiang 830011;Key Laboratory of Oasis Ecology of Xinjiang, Institute of Arid Ecology and Environment, Xinjiang University, Urumqi, Xinjiang 830046;Institute of Forestry Ecology of Xinjiang Academy of Forestry Sciences, Urumqi, Xinjiang 830000) |
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Abstract: | We measured the sap flow of Haloxylno persicum applying packaged stem sap flow gauge,and choosed normative tress according with 1-3 cm stem base diameter.Through the sectional area of stem base diameter and the sap flow of measurand tress,we calculated clump transpiration of Haloxylno,and obtaining hungriness shrubbery' s transpiration through scale transfer by crown width standart.Between the rate of Haloxylno' s transpiration and the tress stem base diameter have,clump transpiration and crown width all have prominent relativity too.The background value of carbon sink forest' s transpiration in Karamav is 3.25 t/(d · hm2).The sap flow of Haloxylno has a very significant relation with solar radiation,photosynthetic available radiation,wind speed,air humidity and soil moisture which are the main factors in influencing sap flow in the level of 0.01.The order is:photosynthetic available radiation > solar radiation > wind speed > soil moisture > air humidity.Fitting equations to sap flow using the dominating factor of photosynthetic available radiation,and the equation isf =0.024PAR + 6.859,with R2 =0.887. |
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Keywords: | Stem sap flow Transpiration water-consumption Haloxylon persicum Bge. Hungriness Packaged stem sap flow gauge |
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