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Title: Understanding the Response of Photosynthetic Metabolism in Tropical Forests to Seasonal Climate Variations. Final Report

Abstract

This U.S-Brazil collaboration for GOAmazon has investigated a deceptively simple question: what controls the response of photosynthesis in Amazon tropical forests to seasonal variations in climate? In the past this question has been difficult to answer with modern earth system process models. We hypothesized that observed dry season increases in photosynthetic capacity are controlled by the phenology of leaf flush and litter fall, from which the seasonal pattern of LAI emerges. Our results confirm this hypothesis (Wu et al., 2016). Synthesis of data collected throughout the 3-year project period continues through December 31, 2017 under no-cost extensions granted to the project teams at University of Michigan and University of Arizona (Award 2). The USGS component (Award 1) ceased on the final date of the project performance period, December 31, 2016. This report summarizes the overall activities and achievements of the project, and constitutes the final project report for the USGS component. The University of Michigan will submit a separate final report that includes additional results and deliverables achieved during the period of their and the University of Arizona’s no-cost extension, which will end on December 31, 2017.

Authors:
 [1];  [2];  [3];  [4]
  1. U.S. Geological Survey, Menlo Park, CA (United States)
  2. Univ. of Michigan, Ann Arbor, MI (United States)
  3. Univ. of Arizona, Tucson, AZ (United States)
  4. Univ. of Arizona, Tucson, AZ (United States); Univ. of Technology, Sydney NSW (Australia)
Publication Date:
Research Org.:
US Geological Survey, Flagstaff, AZ (United States). Western Geographic Science Center
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1349260
Report Number(s):
DOE-SC0008383
ER65592
DOE Contract Number:  
SC0008383
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; Photosynthetic Metabolism; Tropical Forests; Seasonal Climate Variations

Citation Formats

Dye, Dennis, Ivanov, Valeriy, Saleska, Scott, and Huete, Alfredo. Understanding the Response of Photosynthetic Metabolism in Tropical Forests to Seasonal Climate Variations. Final Report. United States: N. p., 2017. Web. doi:10.2172/1349260.
Dye, Dennis, Ivanov, Valeriy, Saleska, Scott, & Huete, Alfredo. Understanding the Response of Photosynthetic Metabolism in Tropical Forests to Seasonal Climate Variations. Final Report. United States. doi:10.2172/1349260.
Dye, Dennis, Ivanov, Valeriy, Saleska, Scott, and Huete, Alfredo. Fri . "Understanding the Response of Photosynthetic Metabolism in Tropical Forests to Seasonal Climate Variations. Final Report". United States. doi:10.2172/1349260. https://www.osti.gov/servlets/purl/1349260.
@article{osti_1349260,
title = {Understanding the Response of Photosynthetic Metabolism in Tropical Forests to Seasonal Climate Variations. Final Report},
author = {Dye, Dennis and Ivanov, Valeriy and Saleska, Scott and Huete, Alfredo},
abstractNote = {This U.S-Brazil collaboration for GOAmazon has investigated a deceptively simple question: what controls the response of photosynthesis in Amazon tropical forests to seasonal variations in climate? In the past this question has been difficult to answer with modern earth system process models. We hypothesized that observed dry season increases in photosynthetic capacity are controlled by the phenology of leaf flush and litter fall, from which the seasonal pattern of LAI emerges. Our results confirm this hypothesis (Wu et al., 2016). Synthesis of data collected throughout the 3-year project period continues through December 31, 2017 under no-cost extensions granted to the project teams at University of Michigan and University of Arizona (Award 2). The USGS component (Award 1) ceased on the final date of the project performance period, December 31, 2016. This report summarizes the overall activities and achievements of the project, and constitutes the final project report for the USGS component. The University of Michigan will submit a separate final report that includes additional results and deliverables achieved during the period of their and the University of Arizona’s no-cost extension, which will end on December 31, 2017.},
doi = {10.2172/1349260},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Mar 31 00:00:00 EDT 2017},
month = {Fri Mar 31 00:00:00 EDT 2017}
}

Technical Report:

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