[Breymeyer, A. I., Berg, B., Gowers, T., & Johnson, D. (1996). Carbon budget: temperate coniferous forests. In A. I. Breymeyer, D. O. Hall, J. M. Melillo, & G. L. Ågren (Eds.), SCOPE 56 - Global Change: Effects on Coniferous Forests and Grasslands (pp. 1-26). Chennai: John Wiley & Sons.]Search in Google Scholar
[Finer, L. (1996). Variation in the amount and quality of litterfall in a Pinus sylvestris L. stand growing on a bog. Forest Ecology and Management, 80, 1-11.10.1016/0378-1127(95)03652-0]Search in Google Scholar
[Frey, J., Frey, T., & Pajuste, K. (2004). Input-output analysis of macroelements in ICP-IM catchment area, Estonia. Landscape and Urban Planning, 67, 217-223.10.1016/S0169-2046(03)00041-0]Search in Google Scholar
[Hansen, K., Vesterdal, L., Schmidt, K. I., Gundersen, P., Sevel, L., Bastrup-Birk, … Bille-Hansen, J. (2009). Litterfall and nutrient return in five tree species in a common garden experiment. Forest Ecology and Management, 257, 2133-2144.10.1016/j.foreco.2009.02.021]Search in Google Scholar
[Helmisaari, H.-S. (1992). Nutrient retranslocation in three Pinus sylvestris stands. Forest Ecology and Management, 51, 347-367.10.1016/0378-1127(92)90334-6]Search in Google Scholar
[Hill, M. O., Bell, N., Bruggeman-Nannenga, M. A., Brugues, M., Cano, M. J., Enroth, J., … Soderstrom, L. (2006). Bryological monograph. An annotated checklist of the mosses of Europe and Macaronesia. Journal of Bryology, 28, 198-267.10.1179/174328206X119998]Search in Google Scholar
[ICP-Forests. (2011). Programme. Retrieved from http://www.icp-forests.org/Programme.htm]Search in Google Scholar
[Kārkliņš, A., Gemste, I., Mežals, H., Nikodemus, O., & Skujāns, R. (2009). Latvijas augšņu noteicējs. Jelgava: LLU.]Search in Google Scholar
[Lazdiņš, A. (2010). Pārskats par Meža attīstības fonda pasūtīto pētījumu "Valsts starptautisko saistību izpilde Eiropas meža monitoringa sistēmas attīstības projekta "Further Development and Implementation of an EU-level Forest Monitoring System" (FutMon) ieviešanā". Salaspils: Latvijas Valsts mežzinātnes institūts "Silava".]Search in Google Scholar
[Lībiete, Z., Lazdiņš, A., Lazdiņa, D., Bārdulis, A., & Bārdule, A. (2010). Importance of forest monitoring and progress of FutMon (Further development and implementation of an EU-level forest monitoring system) project in Latvia. In Proceedings of the 3rd International Scientific Conference of Vidzeme University of Applied Sciences and Nature Conservation Agency North Vidzeme Bioshere Reserve "Solutions on Harmonizing Sustainability and Nature Protection with Socio-Economic Stability", Valmiera, Latvia, August 19-20 (pp. 109-115). Valmiera: Vidzeme University of Applied Sciences.]Search in Google Scholar
[Martinez-Alonso, C., Valladares, F., Camarero, J. J., Arias, M. Z., Serrano, M., & Rodriguez, J. A. (2007). The uncoupling of secondary growth, cone and litter production by intradecadal climatic variability in a mediterranean scots pine forest. Forest Ecology and Management, 253, 19-29.10.1016/j.foreco.2007.06.043]Search in Google Scholar
[Pajuste, K. (2004). Deposition and transformation of air pollutants in coniferous forests. Dissertation, University of Tartu, Estonia.]Search in Google Scholar
[Pausas, J. G. (1997). Litter fall and litter decomposition in Pinus sylvestris forests of the eastern Pyrenees. Journal of Vegetation Science, 8, 643-650.10.2307/3237368]Search in Google Scholar
[Pitman, R., Bastrup-Birk, A., Breda, N., & Rautio, P. (2010). Sampling and analysis of litterfall. In Manual on methods and criteria for harmonized sampling, assessment, monitoring and analysis of the effects of air pollution on forests (pp. 1-16). Retrieved from http://www.icp-forests.org/pdf/FINAL_Litter.pdf]Search in Google Scholar
[Prescott, C. E. (1996). Influence of forest floor type on rates of litter decomposition in microcosms. Soil Biology and Biochemistry, 28(10/11), 1319-1325.10.1016/S0038-0717(96)00132-0]Search in Google Scholar
[Prescott, C. E. (2002). The influence of the forest canopy on nutrient cycling. Tree Physiology, 22, 1193-1200.10.1093/treephys/22.15-16.119312414379]Search in Google Scholar
[Saarsalmi, A., Starr, M., Hokkanen, T., Ukonmaanaho, L., Kukkola, M., Nojd, P., & Sievanen, R. (2007). Predicting annual canopy litterfall production for Norway spruce (Picea abies (L.) Karst.) stands. Forest Ecology and Management, 242, 578-586.10.1016/j.foreco.2007.01.071]Search in Google Scholar
[Starr, M., Saarsalmi, A., Hokkanen, T., Merila, P., & Helmisaari, H. S. (2005). Models of litterfall production for Scots pine (Pinus sylvestris L.) in Finland using stand, site and climate factors. Forest Ecology and Management, 205, 215-225.10.1016/j.foreco.2004.10.047]Search in Google Scholar
[Tērauda, E. (2008). Ķīmisko vielu plūsmas Latvijas priežu mežu ekosistēmās. Promocijas darbs, Latvijas Universitātes Ģeogrāfijas un Zemes zinātņu fakultātes Vides zinātnes nodaļa, Rīga.]Search in Google Scholar
[Ukonmaanaho, L., Merila, P., Nojd, P., & Nieminen, T. M. (2008). Litterfall production and nutrient return to the forest floor in Scots pine and Norway spruce stands in Finland. Boreal environment research, 13 (suppl. B), 67-91.]Search in Google Scholar
[Vuceticha, J. A., Reeda, D. D., Breymeyerc, A., Degorskic, M., Mroza, G. D., Solonc, J., … Nobleb, R. (2000). Carbon pools and ecosystem properties along a latitudinal gradient in northern Scots pine (Pinus sylvestris) forests. Forest Ecology and Management, 136, 135-145.10.1016/S0378-1127(99)00288-1]Search in Google Scholar