Results 11 to 20 of about 206 (135)
Shuitu Baochi Xuebao, 2021 森林蒸腾在维系森林生态系统水量平衡上起着重要作用，研究麻栎和栓皮栎的蒸腾耗水规律，有助于了解栎林的水文过程和水量平衡。采用热扩散探针法，对江苏省句容市麻栎和栓皮栎林蒸腾速率进行连续观测，研究蒸腾速率在晴天、阴天和雨天的日变化特征，以及不同天气下气候因子对蒸腾速率的影响机制。结果表明，麻栎和栓皮栎蒸腾速率日变化在晴天、阴天均为单峰型，而雨天峰型波动较大。晴天峰值出现在11：30—12：30，阴天峰值出现在13：30—14：00。不同天气下，麻栎、栓皮栎日均蒸腾速率表现为麻栎>栓皮栎，晴天>阴天>雨天 ...
阮存鑫 +4 more
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Shuitu Baochi Xuebao, 2006 2004年5～10月．通过测定青海大通一块退耕地上17年生的青海云杉和华北落叶松混交林树木蒸腾速率的日变化、月变化动态规律以及树木蒸腾总面积来确定混交林的蒸腾量，根据植物的蒸腾量估算树木在生长季的耗水量，进而推算出林地蒸散和水量平衡。研究表明．青海云杉、华北落叶松混交林生长季林地总蒸散量为251.80mm，以林木的蒸发散为主，占总蒸散量的80％，占同期降雨量的58％；灌草蒸散占总蒸散的13％；而土壤蒸发仅为25．71mm，占总蒸散的7％。
李世荣 +3 more
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Transpiration Characteristics of Common Trees and Their Responses to Meteorological Factors in Secondary Forests on Karst Slopes [PDF]
[Objective] To explore the transpiration characteristics of common trees and their responses to meteorological factors in secondary forests on karst slopes.
DAI Quanhou +3 more
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Soil Hydrothermal Characteristics of Orchard Based on Leaf Area Index Coupled with STEMMUS Model [PDF]
[Objective] As a key parameter in the simulation study of ecosystem water cycle process, rapid dynamic simulation of leaf area index (LAI) can solve the limitation that the coupled soil water-vapor-heat-air model STEMMUS (simultaneous transfer of energy,
GAO Xiaodong +3 more
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Shuitu Baochi Xuebao, 2003 通过对人为给水和自然水分条件下的1.5m×6m和1.5m×3m密度的刺槐(Robiniapseudoacacia)林的林地蒸发和林木蒸腾定位观测,并结合气象观测资料和水面蒸发观测结果,应用Penman-Monteith方程对该林分日、月蒸腾量和需水量及其季节变化进行了估算。结果表明,在5～10月,自然水分条件下的1.5m×6m和1.5m×3m密度刺槐林地的土壤蒸发量分别为123.1mm和134.24mm,林木蒸腾量分别为76.62mm和62.33mm,林分耗水量分别为199.77mm和196.54mm ...
侯振宏 贺康宁 张小全
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Sapflow characteristics of Kandelia obovata and their controlling factors in Zhangjiang estuary,China [PDF]
, 2016 利用Granier热消散式探针法对福建漳江口国家级红树林自然保护区内红树植物秋茄的树干茎流密度(SFD)进行1年(2010年10月至2011年10月)的连续监测.结果表明:季节和树干径级对秋茄树干茎流密度均有显著影响.在夏季,胸径(DBH)为8~10 cm时秋茄树干最外层2 cm处的SFD达到最大,为38.21 g·m~(-2)·s~(-1),这与其他红树物种以及湿地乔木物种的茎流密度相当.不同径级(小、中、大径级分别为2~4、4~8、8~10 cm)秋茄每日整树蒸腾量(即水分日利用量 ...
冯建祥 +3 more
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Integrative Conservation, Volume 4, Issue 3, Page 362-380, September 2025.Occurrences of dust storms and long‐distance movement of dust across landscapes is constantly increasing in south Asia. This dust is expected to have profound impact on vegetation health and sustainability as dust may contribute to nutrient budgets of the forest ecosystems, while it could impart various stresses to the plants.
Shree P. Pandey +2 more
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Comparisons of tolerances to salt stress among three salt-secreting mangrove species [PDF]
, 2004 在盐度 0、5、15、2 5和 35 (% )下种植泌盐红树植物老鼠 (Acanthus ilicifolius)、桐花树 (Aegiceras corniculatum)和白骨壤(Avicennia marina)的繁殖体 ,以繁殖体萌发、幼苗生长、叶片泌盐量、叶片组织液盐含量和蒸腾蒸发量为指标 ,比较其对盐胁迫的耐受性。盐度提高对胎生种类桐花树和白骨壤的萌根速率无显著影响 ,但高盐度明显抑制非胎生种类老鼠的萌根。白骨壤的萌苗率不受盐度影响 ,但 2 5以上的盐度导致桐花树和老鼠的萌苗率下降 ...
卢昌义, 叶勇, 胡宏友, 谭凤仪
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Hydroecological effects of mining and its restoration ways in coal mining areas of Western China [PDF]
The mining areas in arid and semi-arid region have become important coal production bases to ensure China’s energy strategic security, however, coal development by large-scale and high-intensity mining has triggered a series of water resources and ...
Guangrong GE +7 more
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Shuitu Baochi Xuebao, 2019 以北京山区广泛分布的侧柏林为研究对象，分别采用水文学实测法（树干液流计结合大型蒸渗仪）和稳定同位素法对林分蒸散量进行定量拆分研究。结果表明：（1）在日尺度上，该林分的蒸散量和蒸腾量均显现为"单峰"型的变化曲线。林分总的蒸散量和蒸腾量均在正午前后达到最大值，分别为1.27，1.13 mm/h；（2）实测法和稳定同位素法对侧柏林蒸腾量占总蒸散量的计算结果分别为80.21%~89.63%和79.10%~98.71%。相比水文学实测法，稳定同位素法在小时尺度上误差为（3.97±3.53）%，而在日尺度上误差为 ...
王渝淞 +6 more
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