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The terrestrial NPP simulations in China since Last Glacial Maximum

机译:自上次冰河最高峰以来中国的地面NPP模拟

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摘要

Based on Atmosphere-Vegetation Interaction Model (AVIM), the magnitude and spatial distribution of terrestrial net primary productivity (NPP) in China is simulated during three different geological eras, Last Glacial Maximum (LGM), Mid-Holocene (MH) and the present. The simulation shows that the glacial-interglacial variation of East Asian summer monsoon in China is the key factor affecting the NPP change. During the three eras, mean NPPs are 208 g/m~2 centre dot a, 409 g/m~2 centre dot a, and 355 g/m~2 centre dot a. The total NPPs are 2.05 Pg/a, 3.89 Pg/a and 3.33 Pg/a, respectively. The terrestrial NPP in China during warm-humid climate is larger than that during cold-arid eras, and the correlation analysis between NPP and climate factors suggests that temperature is the primary factor affecting the terrestrial NPP during 21 kaBP (LGM), and for 6 kaBP (MH) and the present the primary factor is precipitation.
机译:基于大气-植被相互作用模型(AVIM),模拟了中国三个陆地时代(上次冰期最大值(LGM),全新世中期(MH))和当前的陆地净初级生产力(NPP)的大小和空间分布。 。模拟表明,中国东亚夏季风的冰间变化是影响NPP变化的关键因素。在这三个时代中,平均NPP分别为208 g / m〜2中心点a,409 g / m〜2中心点a和355 g / m〜2中心点a。总NPP分别为2.05 Pg / a,3.89 Pg / a和3.33 Pg / a。在暖湿气候条件下,中国的陆地NPP大于冷干旱时期,而NPP与气候因子之间的相关分析表明,温度是21 kaBP(LGM)期间影响陆地NPP的主要因素,而对于6 ka kaBP(MH)和目前的主要因素是降水。

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