@article {6204,
	title = {Remotely sensed soil moisture can capture dynamics relevant to plant water uptake},
	journal = {Water Resources Research},
	volume = {59},
	year = {2023},
	pages = {e2022WR033814},
	keywords = {LTER-KNZ},
	doi = {10.1029/2022WR033814},
	url = {https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2022WR033814},
	author = {Feldman, Andrew F. and Short Gianotti, Daniel J. and Dong, Jianzhi and Akbar, Ruzbeh and Crow, Wade T. and McColl, Kaighin A. and Konings, Alexandra G. and Nippert, J.B. and Tumber-D{\'a}vila, Shersingh Joseph and Holbrook, Noel M. and Rockwell, Fulton E. and Scott, Russell L. and Reichle, Rolf H. and Chatterjee, Abhishek and Joiner, Joanna and Poulter, Benjamin and Entekhabi, Dara}
}
@article {KNZ001711,
	title = {Biophysical controls on carbon and water vapor fluxes across a grassland climatic gradient in the United States},
	journal = {Agricultural and Forest Meteorology},
	volume = {214-215},
	year = {2015},
	month = {Jan-12-2015},
	pages = {293 - 305},
	abstract = {<p>Understanding of the underlying causes of spatial variation in exchange of carbon and water vapor fluxes between grasslands and the atmosphere is crucial for accurate estimates of regional and global carbon and water budgets, and for predicting the impact of climate change on biosphere\&ndash;atmosphere feedbacks of grasslands. We used ground-based eddy flux and meteorological data, and the Moderate Resolution Imaging Spectroradiometer (MODIS) enhanced vegetation index (EVI) from 12 grasslands across the United States to examine the spatial variability in carbon and water vapor fluxes and to evaluate the biophysical controls on the spatial patterns of fluxes. Precipitation was strongly associated with spatial and temporal variability in carbon and water vapor fluxes and vegetation productivity. Grasslands with annual average precipitation \&lt;600 mm generally had neutral annual carbon balance or emitted small amount of carbon to the atmosphere. Despite strong coupling between gross primary production (GPP) and evapotranspiration (ET) across study sites, GPP showed larger spatial variation than ET, and EVI had a greater effect on GPP than on ET. Consequently, large spatial variation in ecosystem water use efficiency (EWUE = annual GPP/ET; varying from 0.67 \&plusmn; 0.55 to 2.52 \&plusmn; 0.52 g C mm\&minus;1 ET) was observed. Greater reduction in GPP than ET at high air temperature and vapor pressure deficit caused a reduction in EWUE in dry years, indicating a response which is opposite than what has been reported for forests. Our results show that spatial and temporal variations in ecosystem carbon uptake, ET, and water use efficiency of grasslands were strongly associated with canopy greenness and coverage, as indicated by EVI.</p>},
	keywords = {LTER-KNZ, Ecosystem water use efficiency, Eddy covariance, Enhanced vegetation index, Evapotranspiration, Grasslands, Gross primary production},
	issn = {01681923},
	doi = {10.1016/j.agrformet.2015.08.265},
	url = {http://linkinghub.elsevier.com/retrieve/pii/S0168192315007005},
	author = {Wagle, Pradeep and Xiao, Xiangming and Scott, Russell L. and Kolb, Thomas E. and Cook, David R. and N. Brunsell and Baldocchi, Dennis D. and Basara, Jeffrey and Matamala, Roser and Zhou, Yuting and Bajgain, Rajen}
}
