Global datasets of leaf photosynthetic capacity for ecological and earth system research
نویسندگان
چکیده
Abstract. The maximum rate of Rubisco carboxylation (Vcmax) determines leaf photosynthetic capacity and is a key parameter for estimating the terrestrial carbon cycle, but its spatial information lacking, hindering global ecological research. Here, we convert chlorophyll content (LCC) retrieved from satellite data to Vcmax, based on plants' optimal distribution nitrogen between light harvesting pathways. We also derive Vcmax (GOME-2) observations sun-induced fluorescence (SIF) as proxy photosynthesis using assimilation technique. These two independent products agree well (r2=0.79,RMSE=15.46µmol m−2 s−1, P<0.001) compare with 3672 ground-based measurements (r2=0.69,RMSE=13.8µmol s−1 P<0.001 SIF; r2=0.55,RMSE=18.28µmol LCC). LCC-derived product used constrain retrieval TROPical Ozone Mission (TROPOMI) SIF produce an optimized both LCC information. distributions these are compatible computed optimality theory meteorological variables, importantly reveal additional influence land cover, irrigation, soil pH, capacity. satellite-based approaches primed play major role in ecosystem three remote sensing SIF, LCC, SIF+LCC available at https://doi.org/10.5281/zenodo.6466968 (Chen et al., 2022), code implementing https://github.com/SmithEcophysLab/optimal_vcmax_R https://doi.org/10.5281/zenodo.5899564 (last access: 31 August 2022) (Smith 2022).
منابع مشابه
simulation and design of electronic processing circuit for restaurants e-procurement system
the poor orientation of the restaurants toward the information technology has yet many unsolved issues in regards to the customers. one of these problems which lead the appeal list of later, and have a negative impact on the prestige of the restaurant is the case when the later does not respond on time to the customers’ needs, and which causes their dissatisfaction. this issue is really sensiti...
15 صفحه اولLeaf Photosynthetic Capacity, Chlorophyll Content, and Specific Leaf Nitrogen Relationships in Sunflower Crops Prior to Anthesis
متن کامل
Cell density and airspace patterning in the leaf can be manipulated to increase leaf photosynthetic capacity
The pattern of cell division, growth and separation during leaf development determines the pattern and volume of airspace in a leaf. The resulting balance of cellular material and airspace is expected to significantly influence the primary function of the leaf, photosynthesis, and yet the manner and degree to which cell division patterns affect airspace networks and photosynthesis remains large...
متن کاملLeaf Area Index in Earth System Models
The amount of leaves in a plant canopy (measured as leaf area index, LAI) modulates key land–atmosphere interactions, including the exchange of energy, moisture, carbon dioxide (CO 2), and other trace gases, and is therefore an essential variable in predicting terrestrial carbon, water, and energy fluxes. The latest generation of Earth system 5 models (ESMs) simulate LAI, as well as provide pro...
متن کاملEcological Capacity Assessment for Ecotourism Development Using Geographic Information System (Case Study: Mianeh County)
Ecotourism, as the leading sector of the tourism industry, relies on utilizing environmental capabilities, and needs proper management decisions. In this context, the identification of ecological and environmental power is the most basic step. This study by considering the middle of the city as the sample of this province due to its ecological superiority and using the hierarchical analysis pro...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Earth System Science Data
سال: 2022
ISSN: ['1866-3516', '1866-3508']
DOI: https://doi.org/10.5194/essd-14-4077-2022