search:primary productivity相關網頁資料

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    日期:2025-09-29
    Primary productivity is the rate at which energy is converted by photosynthetic and chemosynthetic autotrophs to organic substances. The total amount of ......
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    日期:2025-10-03
    They show net primary productivity, which is how much carbon dioxide vegetation takes in during photosynthesis minus how much carbon dioxide the plants ......
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    日期:2025-10-06
    In this lecture we will begin with a consideration of primary production, and in the next lecture we will examine what happens to this energy as it is conveyed ......
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    Net Primary Productivity (NPP) is the net amount of energy a plant accumulates during a time period. Because there is a direct relationship between the energy a ......
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    日期:2025-10-01
    Primary Productivity. The flow of energy through any ecosystem starts with the fixation of sunlight by plants and other autotrophic organisms. In this way the plant ......
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    Net primary productivity (NPP) is defined as the net flux of carbon from the atmosphere into green plants per unit time. NPP refers to a rate process, i.e., the ......
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    日期:2025-09-30
    2014年6月4日 - Total net primary production on Earth exceeds 100 billion tons of carbon per year, and it plays a profound role in the global carbon cycle....