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Title: Linking topographic variation in belowground C processes with hydrological processes to improve Earth system models

Abstract

The effects of topography on belowground processes were investigated at the Susquehanna-Shale Hills Critical Zone Observatory in central Pennsylvania. Hill slope had stronger effects on aboveground biomass allocation than belowground allocation. Hills slope position affected the respiratory response to temperature with a 10-degree increase having more influence in slope positions characterized by higher moisture. A spatial distributed forest model that includes nitrogen transport was developed from a 1-dimensional biogeochemical model and a spatially distributed land surface hydrological model. This model can simulate the impact of topography-driven spatially-distributed soil moisture, soil temperature, solar radiation, and soil mineral N on watershed carbon processes. This project helped in the training of four PhD students.

Authors:
; ; ; ;
Publication Date:
Research Org.:
The Pennsylvania State University
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23). Climate and Environmental Sciences Division
OSTI Identifier:
1478315
Report Number(s):
DOE-PSU-SC0012003
DOE Contract Number:  
SC0012003
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; root production, modeling, carbon flux, soil moisture, root allocation

Citation Formats

Eissenstat, David, Kaye, Jason, Shi, Yuning, Davis, Kenneth, and Lin, Henry. Linking topographic variation in belowground C processes with hydrological processes to improve Earth system models. United States: N. p., 2018. Web. doi:10.2172/1478315.
Eissenstat, David, Kaye, Jason, Shi, Yuning, Davis, Kenneth, & Lin, Henry. Linking topographic variation in belowground C processes with hydrological processes to improve Earth system models. United States. doi:10.2172/1478315.
Eissenstat, David, Kaye, Jason, Shi, Yuning, Davis, Kenneth, and Lin, Henry. Mon . "Linking topographic variation in belowground C processes with hydrological processes to improve Earth system models". United States. doi:10.2172/1478315. https://www.osti.gov/servlets/purl/1478315.
@article{osti_1478315,
title = {Linking topographic variation in belowground C processes with hydrological processes to improve Earth system models},
author = {Eissenstat, David and Kaye, Jason and Shi, Yuning and Davis, Kenneth and Lin, Henry},
abstractNote = {The effects of topography on belowground processes were investigated at the Susquehanna-Shale Hills Critical Zone Observatory in central Pennsylvania. Hill slope had stronger effects on aboveground biomass allocation than belowground allocation. Hills slope position affected the respiratory response to temperature with a 10-degree increase having more influence in slope positions characterized by higher moisture. A spatial distributed forest model that includes nitrogen transport was developed from a 1-dimensional biogeochemical model and a spatially distributed land surface hydrological model. This model can simulate the impact of topography-driven spatially-distributed soil moisture, soil temperature, solar radiation, and soil mineral N on watershed carbon processes. This project helped in the training of four PhD students.},
doi = {10.2172/1478315},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {10}
}