@inbook{noormets_ewers_sun_mackay_zheng_mcnulty_chen_2006, title={Water and carbon cycles in heterogeneous landscapes: an ecosystem perspective}, ISBN={1600210473}, booktitle={Ecology of Hierarchical Landscapes: From Theory to Application}, publisher={Carbondale, IL: Nova Publishing}, author={Noormets, A. and Ewers, B. and Sun, G. and Mackay, S. and Zheng, D. and McNulty, S. and Chen, J.}, editor={J. Chen, S. C. Saunders and K. D. Brosofske and Crow, T. R.Editors}, year={2006}, pages={89–123} } @article{zheng_chen_noormets_euskirchen_le moine_2005, title={Effects of climate and land use on landscape soil respiration in northern Wisconsin, USA: 1972 to 2001}, volume={28}, ISSN={["1616-1572"]}, DOI={10.3354/cr028163}, abstractNote={Changes in climate and land use affect soil respiration rates (SRR) significantly, but studies of these effects across entire landscapes are rare. We simulated responses of landscape mean SRR (LMSRR) to such changes from May to October over a 30 yr period in a managed, predominantly forested landscape in northern Wisconsin, USA, using: (1) 6 satellite-derived land-cover maps (1972, 1978, 1982, 1987, 1992, and 2001); (2) monthly air temperature data in the corresponding years of the cover maps; and (3) SRR models driven by soil temperature (Ts) at 5 cm depth. LMSRR seemed to increase linearly by 77% from 0.625 in May to 1.104 g CO2 m -2 h -1 in July, and then decreased at an increasing rate to 0.411 g CO2 m -2 h -1 in October. LMSRR was more sensitive to an increase of mini- mum temperature than that of mean or maximum temperature, suggesting that future climate change might impact SRR in high-latitude forests more than other biomes. LMSRR in September over the study period was similar to that of June but with 92% higher variation, while both landscape mean air temperature and precipitation in September had lower variation than in June. This indicates that the topsoil layer functions differently during soil warming and cooling phases. Changes in land cover composition from 1972 to 2001 increased LMSRR by 2.8 to 3.1% while 2°C differences in growing season mean air temperature increased the SRR by 6.7 to 7.0%. The combined effects of both vari- ables on the SRR are more complex, varying from 3.8 to 10.0%.}, number={2}, journal={CLIMATE RESEARCH}, author={Zheng, DL and Chen, JQ and Noormets, A and Euskirchen, ES and Le Moine, J}, year={2005}, month={Mar}, pages={163–173} } @article{chen_brosofske_noormets_crow_bresee_le moine_euskirchen_mather_zheng_2004, title={A working framework for quantifying carbon sequestration in disturbed land mosaics}, volume={33}, ISSN={["0364-152X"]}, DOI={10.1007/s00267-003-9131-4}, journal={ENVIRONMENTAL MANAGEMENT}, author={Chen, Jiquan and Brosofske, Kimberley D. and Noormets, Asko and Crow, Thomas R. and Bresee, Mary K. and Le Moine, James M. and Euskirchen, Eugenie S. and Mather, Steve V. and Zheng, Daolan}, year={2004}, month={Jul}, pages={S210–S221} }