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    Home > Food News > Food Articles > Scientists reveal new mechanisms for plant functionality and productivity simulation

    Scientists reveal new mechanisms for plant functionality and productivity simulation

    • Last Update: 2021-03-08
    • Source: Internet
    • Author: User
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    Xia Jianyang, a professor in the School of Ecology and Environmental Sciences of East China Normal University, made new progress in the study of plant functional characteristics and productivity simulation direction, which further revealed the response law of plant leaf functional characteristics to global environmental change and its significance to ecosystem productivity prediction. The findings were published in Nature -Communication on June 12.
    there are more than 300,000 species of tube-beam plants on Earth, which have shown rich and varied physiological ecology and morphological characteristics during the long evolutionary process, and formed a variety of plant groups. Because these characteristics can reflect the response and adaptation of plants to environmental changes, and affect the function of plant individuals and ecosystems, they are defined as plant functional traits. However, how to predict the change of terrestrial ecosystem productivity based on plant functional characteristics has long been one of the basic problems in ecology.
    To this end, Xia Jianyang team systematically analyzed the leaf functional characteristic observation data of 515 plant species in 210 ecological experiments around the world, and found that there were large differences in the response direction of pairs of sex to temperature increase, drought, CO
    abundance and nitrogen addition, and most of them did not follow the direction indicated by the leaf economy spectrum. However, the trade-off between the functional features of leaves between species maintains a high degree of robustness under environmental change.
    in the global carbon cycle model, plant functionality is the key parameter to simulate the dynamics of ecosystem productivity, and also an important reference index to divide the functional types of plants on the global terrestrial surface. In another study, the team combined satellite remote sensing inverse products, vortex current data and in-place observation data to assess the sources of uncertainty for ecosystem productivity simulations in East Asia's monsoon regions from 15 mainstream international carbon cycle models. It is found that the indicative difference of plant leaf functionality, such as leaf area and leaf area index, is an important source of ecosystem productivity simulation difference between current global carbon cycle models.
    ", these studies show that accurately depicting the trade-off between the functional features of plant leaves can help improve the simulation of terrestrial ecosystem productivity in global carbon cycle models. However, these studies also point out that the trade-off between plant functionality and global environmental changes has different patterns and mechanisms within species, between species and at community levels, Xia said. Therefore, in the current context of rapid changes in the global environment, how to predict terrestrial ecosystem function based on plant features still contains many unresolt ecological problems.
    series of research by the Ministry of Science and Technology key research and development projects and other funding support. (Source: Huang Xin Daiqi, China Science Journal)
    relevant paper information:
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