Also,we found that the daily average value of WUEe always higher than that of leaf level WUE,one reason maybe lie in that they can not be compared directly for using two kinds of different measurement methods,the other reason may be associated with the energy fluxes underestimate by EC technology.4.Simulation of winter wheat canopy CO_2 fluxes by a multiplayer two-leaf model.

將生態(tài)系統(tǒng)水平與葉片水平的水分利用效率日均值進(jìn)行比較插入女生视频，前者較后者高，原因可能與研究時(shí)對(duì)不同尺度采用了不能直接可比的不同的測定方法有關(guān)91主播丝袜福利一区二区，也可能與渦度相關(guān)技術(shù)對(duì)能量通量的低估有關(guān)久草观看视频。4。

We analyzed and discussed the characteristics of cycle of carbon and water,and after having obtained important physiological parameters based on field experiment,a process-based, multilayer two-leaf model which calculates energy and material cycle separately for sunlit and shaded leaves was developed,then characteristic of CO_2 fluxes above the canopy was simulated.The main results are as follows:1.Characteristics of carbon and water cycle in the relationship of leaf photosynthesis -stomatal conductance-transpiration.

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The beautiful sky has crowds of kite surf in the wings, that long-term arrhizus thin away my childhood dreams have taken away all my happy time, Under the Canopy is now clear that because of the side streams, the sun shine The more the merry increasingly clear flowing stream, dense shade of a tree under the lark in the loud voices singing loud and clear, this is my dream holiday start.

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It is analyzed the influence of electrical locomotive carbody canopy on the frequency of the carbody vertical bending vibration,the side wall transverse bending vibration and the carbody torsion vibration around the longitudinal axis.

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A trunk that barely tapers, level ground, proximity to water, a flash of sun-kissed foliage reaching beyond the shaded canopy-- these are clues to finding a tree superior to its merely magnificent neighbors.

一個(gè)幾乎不變細(xì)的樹干，水平的地面国产在线精品一区二区中文，臨近水源三级片毛片AV网站，一片伸出周圍樹陰的樹葉太陽照耀出的閃光---這些都為找到一棵比周圍看上去光只是壯觀的同伴們更優(yōu)秀的樹提供了一條條線索。

If you're looking down from a jet airliner in summer, a forest appears as a solid canopy of green.

如果你在夏天從飛機(jī)上向下看，森林就是鋪天蓋地的綠色欧美精品可乐视频。

Hello, my home on the north side of Silver Alarelin雙崗point, last fall, when visited fengle ecological park, the first time to see one of the steel-framed canopy there are so many chrysanthemums in full bloom, a corporation of a corporation is too beautiful a.

你好超碰在线免费视，我家就在銀瑞林北邊一點(diǎn)的雙崗，去年秋天的時(shí)候去過豐樂生態(tài)園欧美三级A片视频，第一次看到其中一個(gè)鋼架大棚內(nèi)有這么多怒放的菊花型男操干美女破处视频网站，一團(tuán)一團(tuán)的太漂亮了。

The 800-acre campus, located 90 miles north of New York City, includes a wetlands sanctuary and boardwalk, nature trails, a forest canopy walkway, the six-acre, nationally accredited Trevor Zoo, an observatory and a weather station.

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Finally, the irregular, single-layered membrane connecting the ring truss to the reinforced concrete canopy of the peripheral portion, on which work had been proceeding simultaneously, was constructed.

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