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pro vyhledávání: '"J. Timothy Ball"'
Publikováno v:
Remote Sensing, Vol 12, Iss 1, p 166 (2020)
Pioneering networks of cameras that can search for wildland fire signatures have been in development for some years (High Performance Wireless Research & Education Network—HPWREN cameras and the ALERT Wildfire camera). While these cameras have prov
Externí odkaz:
https://doaj.org/article/bae68e53e05544f8bb8c6e12398a8165
Publikováno v:
Remote Sensing, Vol 12, Iss 1, p 166 (2020)
Pioneering networks of cameras that can search for wildland fire signatures have been in development for some years (High Performance Wireless Research & Education Network—HPWREN cameras and the ALERT Wildfire camera). While these cameras have prov
Publikováno v:
Global Change Biology. 6:99-109
Summary Studies have suggested that more carbon is fixed due to a large increase in photosynthesis in plant–soil systems exposed to elevated CO2 than could subsequently be found in plant biomass and soils –- the locally missing carbon phenomenon.
Autor:
Ana Rey, Richard J. Norby, Andrew G. Peterson, Peter S. Curtis, David T. Tissue, Yiqi Luo, Christopher B. Field, Peter B. Reich, Carla A. Gunderson, Cmeal Participants, Kevin L. Griffin, M. Forstreuter, Christoph S. Vogel, J. Timothy Ball
Publikováno v:
Global Change Biology. 5:331-346
Estimation of leaf photosynthetic rate (A) from leaf nitrogen content (N) is both conceptually and numerically important in models of plant, ecosystem and biosphere responses to global change. The relationship between A and N has been studied extensi
Publikováno v:
Tree Physiology. 16:905-914
We monitored effects of elevated CO(2) and N fertilization on shoot and fine root growth of Pinus ponderosa Dougl. ex P. Laws. and C. Laws. grown in native soil in open-top field-exposure chambers at Placerville, CA, over a 2-year period. The experim
Publikováno v:
Global Biogeochemical Cycles. 10:209-222
Rising atmospheric CO2 concentration (Ca) may alter two components (sensitivity and acclimation) of global photosynthetic carbon influx into terrestrial ecosystems (P G). Most existing global models focus on long-term acclimation. We have developed a
Publikováno v:
Tree Physiology. 16:125-130
To determine whether long-term growth in enriched CO(2) atmospheres changes the woody tissue respiration component of aboveground carbon budgets, we measured woody tissue respiration of stems of 3-year-old ponderosa pine (Pinus ponderosa Laws.) grown
Publikováno v:
Ecological Applications. 5:395-400
A controlled environment study of the effects of carbon dioxide (CO2) and nitrogen (N) on growth of ponderosa pine seedlings produced results contradictory to those obtained in the field with the same species, soil, and treatments. In the controlled
Publikováno v:
Agricultural and Forest Meteorology. 54:107-136
This paper presents a system of models for the simulation of gas and energy exchange of a leaf of a C3 plant in free air. The physiological processes are simulated by sub-models that: (a) give net photosynthesis (An) as a function of environmental an
Autor:
Dale W. Johnson, J. Timothy Ball
Publikováno v:
Water, Air, & Soil Pollution. 54:3-20
The effects of acid deposition, excess N deposition, and elevated CO2 on forest soils and nutrition in North America are reviewed. While there remains the possibility that acid deposition and excess N deposition are contributing to declines in red sp