Nilson, T., Suviste, S., Lükk, T., and Eenmäe, A. (2008) Seasonal reflectance course of some forest types in Estonia from a series of Landsat TM and SPOT images and via simulation. International Journal of Remote Sensing, 29(17-18), 5073–5091.
Rautiainen, M., Lang, M., Mõttus, M., Kuusk, A., Nilson, T., Kuusk, J., and Lükk, T. (2008) Multi-angular reflectance properties of a hemiboreal forest: an analysis using CHRIS PROBA data. Remote Sensing of Environment, 112, 2627-2642.
Kuusk, A., Nilson, T., Paas, M., Lang, M., and Kuusk, J. (2008) Validation of the forest radiative transfer model FRT. Remote Sensing of Environment, 112, 51-58.
Suviste, S., Nilson, T., Lükk, T. and Eenmäe, A. (2007) Seasonal reflectance course of some forest types in Estonia from multi-year LANDSAT TM and SPOT images and via simulation. Proceedings of Multi Temp 2007, 18-20 July, Leuven, Belgium, eds: G.J.M. De Lannoy, R. Hoeben, N.E.C. Verhoest, W.W. Verstraeten, S. Bruneel, P. Coppin, CD-ROM by Katholike Universitet Leuven, 5 pp.
Lang, M., Nilson, T., Kuusk, A., Kiviste, A., and Hordo, M. (2007) The performance of foliage mass and crown radius models in forming the input of a forest reflectance model: A test on forest growth sample plots and Landsat 7 ETM+ images. Remote Sensing of Environment, 110, 445-457.
Kuusk, A., Kuusk, J., Lang, M., Lükk, T., and Nilson, T. (2007) Hyperspectral reflectance of sub-boreal forests measured by CHRIS/PROBA and airborne spectrometer. Proc. ‘Envisat Symposium 2007’, Montreux, Switzerland 23–27 April 2007, ESA SP-636, July 2007, 6 pp.
Nilson, T., Lükk, T., Suviste, S., Kadarik, H., and Eenmäe, A. (2007) Calibration of time series of satellite images to study the seasonal course of forest reflectance. Proc. Estonian Acad. Sci. Biol. Ecol., 56(1), 5-18.
Nilson, T., Suviste, S., Lükk, T., and Eenmäe, A. (2006) Seasonal reflectance course of some forest types in Estonia as determined from a series of Landsat TM and SPOT images and via simulation. 2nd International Symposium Recent Advances in Quantitative Remote Sensing, 25/29 September 2006,Torrent (Valencia) Spain, Abstract Book, 70-71.
Eriksson, H.M., Eklundh, L., Kuusk, A., and Nilson, T. (2006) Impact of understory vegetation on forest canopy reflectance and remotely sensed LAI estimates. Remote Sensing of Environment 103(4), 408-418.
Rautiainen, M., Stenberg, P. and Nilson, T. 2005. Estimating canopy cover in Scots pine stands. Silva Fennica, 39 (1):137-142.
Kuusk, A., Lang, M., and Nilson, T. 2004. Simulation of the reflectance of ground vegetation in sub-boreal forests, Agricultural and Forest Meteorology, 126(1-2): 33-46.
Nilson, T. and Kuusk, A. 2004. Improved algorithm
for estimating canopy indices from gap fraction data in forest canopies. Agricultural
and Forest Meteorology, 124:157-169.
Pinty, B., Widlowski, J.-L., Taberner, M., Gobron,
N., Verstraete, M. M., Disney, M., Gascon, F., Gastellu, J.-P., Jiang, L.,
Kuusk, A., Lewis, P., Li, X., Ni-Meister, W., Nilson, T., North, P., Qin, W., Su, L., Tang, S., Thompson,
R., Verhoef, W., Wang, H., Wang, J., Yan, G., and Zang, H. 2004. Radiation Transfer
Model Intercomparison (RAMI) exercise: Results from the second phase, J.
Geophys. Res., 109(D6): D06210 10.1029/2003JD004252 25 March 2004.
Rautiainen, M., Stenberg, P., Nilson, T., and Kuusk, A. 2004. The effect of crown shape on the reflectance of coniferous
stands, Remote Sensing of Environment, 89(1): 41-52.
Nilson, T., Kuusk, A., Lang, M., and Lükk, T. 2003. Forest reflectance modeling: Theoretical aspects and applications, Ambio, 32(8):535-541.
Stenberg, P., Nilson, T., Smolander, H., and Voipio, P. 2003. Gap fraction based estimation of LAI in Scots pine stands subjected to experimental removal of branches and stems, Canadian Journal of Remote Sensing, 29(3):363-370.
Rautiainen, M., Stenberg, P., Nilson, T. Kuusk, A., and Smolander, H. 2003. Application of a forest reflectance model in estimating leaf area of Scots pine stands using Landsat-7 ETM reflectance data, Canadian Journal of Remote Sensing, 29(3): 314-323.
Nilson, T. and Kuusk, A. 2002. Simulation of reflectance spectra in boreal coniferous forest. In: J.A. Sobrino (ed) Proceedings of the First International Symposium on Recent Advances in Quantitative Remote Sensing, Auditori de Torrent, Spain, 16-20 September 2002, Universitat de València, 31-38.
Kuusk, A., Nilson, T. and
Paas, M. 2002. Angular distribution of radiation
beneath forest canopies using a CCD-radiometer. Agricultural
and Forest Meteorology, 110:259-273.
Nilson, T. 2001. Satelliidipildid ja metsandus. Tähetorni kalender 2002, Tõravere, 89-97. (in Estonian. Satellite images and forestry)
Kuusk, A. and
Nilson, T. 2001.
Testing directional properties of a forest reflectance model. J. Geophys.
Res. - Atmospheres, 106(D11):
12011-12022.
Nilson, T., Olsson, H.,
Anniste, J., Lükk, T. and Praks, J. 2001.Thinning-caused change in reflectance
of ground vegetation in boreal forest. Int. J. Remote Sensing, 22(14):2763-2776.
Chen, J. M., Li, X., Nilson, T. and Strahler, A. 2000. Recent advances in geometrical optical modelling and its applications. Remote Sensing Reviews.18 (2-4):227-262.
Nilson, T., Lang, M., Kuusk, A., Anniste, J., and Lükk, T. 2000. Forest reflectance model as an interface between satellite images and forestry databases, In: Zawila-Niedzwiecki, T. and Brach, M., Eds, EUR 19530 - Remote Sensing and Forest Monitoring, Luxembourg: Office for Official Publications of the European Communities, pp. 462-476.
Nilson, T. 2000. Academician Juhan Ross 75. Proceedings of the Estonian Academy of Sciences. Physics, Mathematics, 49(3):190-192.
Kuusk, A. and Nilson, T. 2000. A directional multispectral forest reflectance model. Remote Sensing of Environment, 72(2):244-252.
Nilson, T. 2000. On the use of satellite remote sensing in Estonian forestry and agriculture. Materials of Seminar 'Science to the Society', 3.12.1999. Estonian Academy of Sciences, Tallinn, pp. 5-10 (in Estonian).
Nilson, T. 2000. Kosmilise kaugseire rakendusvõimalusi Eesti metsanduses ja põllumajanduses. Eesti Teaduste Akadeemia seminari materjalid, 3.12.1999, Tallinn, 5-10 (in Estonian, On the use of satellite remote sensing in Estonian forestry and agriculture).
Nilson, T., Kuusk, A., Lang, M., Lükk, T., Anniste, J., Peterson, U. 1999. Satelliidipiltidel baseeruva metsakorralduse alused. Pidev metsakorraldus. EPMÜ Metsandusteaduskonna toimetised 32. (Forest management system based on satellite imagery. Transactions of the Faculty of Forestry, Estonian Agric. Univ. no 32), Tartu, pp. 81-87 (in Estonian).
Nilson, T., Kuusk, A.,
Anniste, J. and Praks, J. 1999. Forest ecosystem
radiation model (FERM). Agricultural and Forest
Meteorology, 98-99. Documented dataset on appended CD.
Nilson, T., Anniste, J.,
Lang, M. and Praks, J. 1999. Determination of
needle area indices of coniferous forest canopies in the NOPEX region by
ground-based optical measurements and satellite images. Agricultural and Forest Meteorology, 98-99:449-462.
Nilson, T. 1999. Inversion of gap frequency data in forest
stands. Agricultural and Forest
Meteorology, 98-99:437-448.
Nilson, T. Kuusk, A. Leroy, M. 1999. A comparison of forest BDRF simulated by the forest reflectance model and determined by airborne POLDER for some BOREAS sites. Proceedings of ALPS99 Symposium, January 18-22, Méribel, CNES, 2, WK3-O-07, p. 1-4.
Nilson, T., Kuusk, A., Lang, M., Lükk, T., Anniste, J. 1999. Forest reflectance model as an interface between satellite images and forestry databases. Abstracts IUFRO Remote Sensing and Forest Monitoring Conference (Rogow 99).
Nilson, T., Kuusk, A., Lang, M. and Lükk, T. 1999. Relations between site index and reflectance of forest stands. IUFRO Workshop on Canopy Dynamics and Forest Management - A Missing Link? August 1-11, 1999 in Estonia, Finland and Sweden. Workshop Abstracts, p. 2.
Kuusk, A. and Nilson, T. 1999. A directional
multispectral forest reflectance model. Abstracts 2nd International Workshop on
Multiangular Measurements and Models, 15-17 September 1999, Ispra (VA) Italy,
p. 21-22.
Nilson, T. 1997. A BRDF model for forests. Journal of Remote Sensing, 1: 77-81.
Nilson, T. 1997. Metsanduslike andmebaaside,
satelliidiülesvõtete, metsa heleduse ja kasvumudelite integreerimisest ühtsesse
geoinfosüsteemi. Eesti Põllumajandusülikool, Teadustööde Kogumik, 189.
Metsandus, Tartu, 133-139 (in Estonian, On integrating forestry databases,
satellite images, forest reflectance and growth models into a GIS).
Nilson, T. and Ross, J. 1997. Modeling radiative
transfer through forest canopies: Implications for canopy photosynthesis and
remote sensing. In: (Gholz, H. L., Nakane, K. and Shimoda, H., eds.) The Use of
Remote Sensing in the Modeling of Forest Productivity. Kluwer Acad. Publ.,
Dordrecht, pp. 23-60.
Nilson, T. and Stenberg, P. 1996. Theoretical
aspects on radiation submodels used in forest growth models. In: (P.Hari, J.
Ross and M. Mecke, eds.) Production Process of Scots Pine; Geographical
Variation and Models. Acta Forestalia
Fennica, 254: 39-48.
Nilson, T., Kuusk, A., Joffre, R., Lacaze, B., Methy,
M. and Peterson, U. 1995. Determination of forest ecosystem parameters by inversion of a
forest reflectance model. In: (G. Guyot, ed.), Proc. Int. Colloq.
Photosynthesis and Remote Sensing, 28 30 Aug. 1995, Montpellier, NASA,
ESA, JRC, INRA, CNES, IFREMER, EARSeL, ISPRS, Montpellier, p. 149 157.
Nilson, T. and Olsson, H. 1995. Effect of thinning
cutting on boreal forest reflectance. Int.
J. Remote Sensing, 16: 2963-2968.
Nilson, T. and Peterson, U. 1994. Age dependence of
forest reflectance: analysis of main driving factors. Remote Sens. Environ., 48: 319-331.
Nilson, T. 1994. Metsade kaugseire alused. Tartu, Eesti
Metsaamet, Eesti Põllumajandusülikool, Metsakorralduse Instituut, 160 lk.
(Metsanduslikud mudelid; 1);(in Estonian, Basis of forest remote sensing)
Nilson, T., Peterson, U., Päivinen, R. 1993. Deviations from normal
successional reflectance trajectories in damaged Scots pine stands. In: (G.
Preto and B. Koch, eds.) Forest Resource Inventory and Monitoring and Remote
Sensing Technology. Proc. IUFRO Centennial Symp, Berlin 27 Aug. 02 Sept.
1992, Japan Society of Forest Planning Press, Tokyo, pp. 151-160.
Nilson, T., Peterson, U. 1993. On the use of
remote sensing in monitoring of forest development. In: (Ü. Mander, J. Fenger,
T. Oja, M. Mikk, eds.) Energy, Environment, Natural Resources Management in the
Baltic Sea Region. 4th Int. Conf. on System Analysis, Tallinn, Estonia, May
18-21, 1993. Nordiske Seminar Og Arbeidsrapporter 653, pp. 247-255.
Nilson, T., Peterson, U. 1993. Temporal
reflectance trajectories of forest communities in Estonia. Annual Report of the
Estonian Academy of Sciences 1992, Tallinn, pp.16-17.
Peterson, U. and Nilson, T. 1993, Successional
reflectance trajectories in northern temperate forests. Int. J. Remote Sensing, 14 (3): 609-613.
Ross,J., Knyazikhin Y., Kuusk A., Marshak A., Nilson
T. 1992.
Mathematical Modeling of the Solar Radiation Transfer in Plant Canopies.
Gidrometeoizdat, St. Petersburg, 195 p. (in Russian).
Nilson, T. 1992. A forest ecosystem radiation model. Int.
Radiation Symp. IRS'92, Tallinn, Estonia,3 8 Aug. 1992, Tallinn, 2: 299.
Nilson, T. 1992. Radiative transfer in nonhomogeneous plant
canopies. In: (G. Stanhill, ed.) Advances in Bioclimatology,
Springer Verlag, 1: 59 88.
Nilson T. 1991. Approximate Analytical Methods for Calculating the
Reflection Functions of Leaf Canopies in Remote Sensing Applications. In: (R.
B. Myneni and J. Ross, eds.) Photon-Vegetation Interactions: Applications in
Optical Remote Sensing and Plant Ecology, Springer-Verlag, Berlin, Heidelberg,
p.161-190.
Herbert, T. J. and Nilson, T. 1991. A model of
variance of photosynthesis between leaves and maximization of whole plant
photosynthesis. Photosynthetica, 25:
597-606.
Nilson, T. 1991. Effect of needle loss on coniferous forest
reflectance: a model prediction. 11th Annual Int. Geosci. and Remote Sens.
Symp. IGARSS'91 Proceedings, Helsinki University of Technology, Espoo, Finland,
June 3 6, 1991, 1543 1546.
Nilson, T. 1991. A forest canopy reflectance model.11th
Annual Int. Geosci. and Remote Sens.
Symp. IGARSS'91 Proceedings, Helsinki University of Technology, Espoo, Finland,
June 3 6, 1991, 1559 1560.
Nilson, T. 1991. Radiative Transfer in Non homogeneous
Plant Canopies. Abstract of Ph.D. Theses, Tartu University, 23 pp.
Nilson T., Peterson U. 1991. A Forest Canopy
Reflectance Model and a Test Case. Remote
Sens.Environ.,37:131-142.
Nilson, T. 1990. A forest canopy reflectance model. Earth Res. from Space (Sov. J. Remote
Sens.), 3:
63 72 (in Russian).
Nilson, T. and Peterson, U. 1990. Testing of a
forest reflectance model. In: Aerospace monitoring of boreal forests.(Abstracts
of All-Union Conference, Krasnoyarsk, 15-17 November
1990) Acad. Sci. USSR, Krasnoyarsk, 110-111.
Kuusk, A. and Nilson, T. 1989. The Reflectance of
Shortwave Radiation from Multilayer Plant Canopies, Tallinn, Acad. Sci. ESSR,
Preprint A 1(1989), 72 pp.
Nilson, T. and Kuusk, A. 1989. A reflectance
model for the plant canopy and its inversion. Remote Sens. Environ., 27: 157 167.
Nilson, T. 1989. Spectral reflectance factors and productivity
of forest communities. In: Ecolgy of Northern forests (Abstracts of the
symposium, part II). Acad. Sci. USSR, Syktyvkar, p.21 (in Russian)
Nilson, T. A. 1988. Linear transforms of spectral
reflectance data in the analysis of crops. Earth
Res. from Space (Sov. J. Remote Sens.), 14: 95-103 (in Russian).
Nilson, T. 1988. Spectral-temporal reflectance profiles for some
cereals, Tartu, Estonian Acad. Sci. Preprint, A-10: 53 pp.
Nilson, T. and Kuusk, A. 1988. An approximate
model to calculate the reflectance factors of vegetation. In: Numerical methods
of solving the radiative transfer equation. Acad. Sci. Estonia, Tartu, 1988,
146-149 (in Russian).
Peterson, U., Nilson, T. 1988. Eesti männikute
seisundi kaugseire tulemusi. Kaasaegse ökoloogia probleemid, TRÜ, ELUS ja ELKS
Eesti Ökoloogiakogu, Tartu, 106-108. (in Estonian, On the state of Estonian
pine forests estimated by remote sensing )
Peterson, U. and Nilson, T. 1988. Linear transforms
of spectral reflectance data in landscape analysis. In: Structure and landscape
ecology of geosystems. Publications of Tartu State University, 808: 34-45 (in
Russian).
Ross, Yu. K., Kuusk, A. E., Nilson, T. A. 1988. The bases of
quantitative theory of plant cover brightness. In: Photosynthesis and
Production Process (ed. A.A. Nichiporovich), Nauka, Moscow, 187-198 (in
Russian).
Nilson, T., Roostalu, H., Kõdar, J. and Ross, J. 1988. Correlation
between barley yield and spectral reflectance at successive growth stages, Earth Res. from Space, 3: 67-73 (in
Russian).
Tullus, H. H., Nilson, T. A. and Tamm, Yu. A. 1988. Regime of diffuse
radiation in a medium-aged Scots pine forest after thinning. Lesovedeniye, 3, 48-55, (in Russian)
Peterson, U., Kuusk, A., Nilson, T., Pajusalu, P.,
Ross, J. and Ross, K. 1987. Linear transforms of reflectance factor data in understanding the
functioning of forest biogeozoenosis.
Proc. Symp. Experiment and mathematical modelling in studying forest and
wetland biogeozoenosis. Moscow, 251-261 (in Russian).
Ross, J., Nilson, T., Kõdar, J., Safina, N., Makke, A.,
Ross, V., Roostalu, H. 1987. Odrakülvi struktuur, optiliste omaduste ja saagikuse vahelistest
seostest. Teaduse saavutusi ja eesrindlikke kogemusi põllumajanduses, 5: 25-29.
(in Estonian, Barley crop structure, relations between optical properties and yield)
Nilson, T. and Ross, J. 1986. A review of models
of vegetation spectral reflectance. In: Remote Methods of Studying Agricultural
Communities. Leningrad, Gidrometeoizdat, 3-6 (in Russian).
Nilson, T., Anton, J., Kuusk, A., Kydar, J., Ross, J.
and Savihhin, A. 1986. Correlation links between radiance properties of some agricultural
stands in different spectral regions and their interpretation. In: Remote
Methods of Studying Agricultural Communities. Leningrad, Gidrometeoizdat, 66-76
(in Russian).
Ross, J. K., Galinis, A. A., Nilson, T. A. and Ross,
K. J.
1986. Effect of liming on soil reflectance. Earth
Res. from Space (Sov. J. Remote Sens.), 6: 84-88 (in Russian).
Hari, P., Kaipiainen, L., Korpilahti, E., Mäkelä, A.,
Nilson, T., Oker-Blom, P., Ross, J. and Salminen, R. 1985. Structure,
radiation and photosynthetic production in coniferous stands, Univ. Helsinki,
Dept. Silvic., Res. Notes 54: 233.
Nilson, T. and Kuusk, A. 1985. Approximate
analytic relationships for the reflectance of agricultural vegetation canopies.
Earth Res. from Space (Sov. J. Remote
Sens.), 4: 814-826 (in Russian).
Nilson, T. 1984. Calculation of the radiation regime of a
forest. In: Radiative climatology and applied actinometry. Materials XII Conf. Actinometry,
Irkutsk, 179-181 (in Russian).
Kuusk, A., Anton, J., Nilson, T., Peterson, U., Ross,
K., Ross, J. and Savihhin, A. 1984. Reflection indicatrices of vegetation covers. Earth Res. from Space, (Sov. J. Remote
Sens.), 5: 68-75 (in Russian).
Hari, P., Nilson, T., Salminen, R., Kaipiainen, L.,
Korpilahti, E. and Ross, J. 1984. Nonlinear dependence of photosynthetic rate on
irradiance and its consequences for estimation of saccharides formed. Photosynthetica, 18(1):28-33.
Salminen, R., Nilson, T., Hari, P., Kaipiainen, L. and
Ross, J.
1983. A comparison of different methods for measuring the canopy light regime. J. Applied Ecology, 20: 897-904.
Nilson, T. A., Anton, J. A. and Aplei, V. B. 1983. seasonal course of
spectral reflectance coefficients of barley and rye canopies. Earth Res. from Space (Sov. J. Remote
Sens.), 5: 72-80 (in Russian).
Nilson, T. A., Anton, J. A., Aplei, V. B., Kõdar, J.
J., Ross, V. A. and Ross, J. K. 1982. On estimation of cereals maturity stage by
remote sensing. Earth Res. from Space
(Sov. J. Remote Sens.), 1: 41-47 (in Russian).
Ross, K., Nilson, T. and Ross, J. 1980. A model for
calculating the radiation regime in plant canopies. In: Abstracts of the XI
All-Union Conference on Actinometry. Part VII Phytoactinometry. Acad. Sci.
USSR, Tallinn, 12-15 (in Russian).
Nilson, T., Aplei, V., Aho, A., Ross, K. and Ross, J. 1980. A statistical
analysis of reflectance factors for some surface types. In: Abstracts of the XI
All-Union Conference on Actinometry. Part VII Phytoactinometry. Acad. Sci.
USSR, Tallinn, 81-84 (in Russian).
Anton, J., Nilson, T., Aplei, V., Aho, A., Ross, K.
and Ross, J. 1980. Correlations between radiative temperatures and reflectance
factors of some natural objects. In: Abstracts of the XI All-Union Conference
on Actinometry. Part VII Phytoactinometry. Acad. Sci. USSR, Tallinn, 85-88 (in
Russian).
Ross, K., Aplei, V., Aho, A., Nilson, T. and Ross, J. 1980. Reflection
indicatrixes of some vegetation types. In: Abstracts of the XI All-Union
Conference on Actinometry. Part VII Phytoactinometry. Acad. Sci. USSR, Tallinn,
113-116 (in Russian).
Nilson, T. 1980. Calculation of the hot spot effect for forests.
In: Abstracts of the XI All-Union Conference on Actinometry. Part VII
Phytoactinometry. Acad. Sci. USSR, Tallinn, 117-120 (in Russian).
Nilson, T. 1980. Reduction of measured spectral albedos of
vegetation to the same sun angle and soil moisture. In: Abstracts of the XI
All-Union Conference on Actinometry. Part VII Phytoactinometry. Acad. Sci.
USSR, Tallinn, 125-128 (in Russian).
Nilson, T. and Ross, V. 1979. Characterization
of the transparency of a forest canopy by fish-eye photographs. In: Spruce
Forest Ecosystem Strucure and Ecology , 2, Estonian IBP Report 12, Tartu,
117-130.
Nilson, T. 1978. Mathematical modelling of the radiation regime
in plant canopies. In: Abstracts of 6th Conference of All-Union Botanical
Society, Kishineu, 12-17 September 1978, Nauka, Leningrad, 270-271 (in Russian)
Kuusk, A., Mullamaa, Yu.-A., Niilisk, H., Nilson, T.,
Sulev, M.
1978. The structure of the cloud cover in the trade-wind region on the basis of
ship measurements. GARP Atlantic Tropical Experiment. Proceedings of the
International scientific conference on
the energetics of the tropical atmosphere (Tashkent, 14-21 September 1977),
Geneva, WMO,155-160.
Nilson, T. 1977. A theory of radiation penetration into
nonhomogeneous plant canopies. In: The Penetration of Solar Radiation into
Plant Canopies, Acad. Sci. ESSR Report, Tartu, 5-70 (in Russian).
Nilson, T., Ross, V. and Ross, J. 1977. Some problems on
the architecture of plants and plant canopies. In: The penetration of solar
radiation into plant canopies. Estonian Acad Sci., Inst. Phys. Astron., Tartu,
71-144 (in Russian).
Nilson, T. 1977. On determination of radiation characteristics
in plant canopies by hemispheric photographs. In: Phytoactinometric
investigation of mountaneous forests. Academy of Sciences of the USSR,
Vladivostok, 45-60 (in Russian).
Nilson, T., Ross, K. and Ross, J. 1976. Remote sensing of
plant communities by the statistical analysis of spectral reflectance factors.
In: Modern problems and methods in investigations of agro- and microclimate
(Conference abstracts). Estonian Geographical Society, Tallinn, 42 (in
Russian).
Ross, J. and Nilson, T. 1975. Radiation exchange
in plant canopies. In: (De Vries, D.A. and Afgan, N.H., eds.) Heat and Mass
Transfer in the Biosphere. P. 1. Transfer Processes in the Plant Environment,
Washington, D.C., Scripta Book Company, 327-336.
Nilson, T. 1972. Radiation regime of plant canopy. In:
Theoretical basis of photosynthetic productivity, Nauka, Moscow, 420-424 (in
Russian).
Nilson, T. 1971. A theoretical analysis of the frequency of gaps
in plant stands. Agricult. Meteorol.,
8: 25-38.
Nilson, T. 1971. On dispersion of foliage elements in crop stands. In: Quantitative methods of
vegetation study, II. Collected conference reports, Latvian Branch of USSR
Botanical Society, Riga, 209-215.
Nilson, T. and Ross, V. 1971. Determination of
canopy density by means of photography. In: Biological productivity of spruce
forests. Estonian Republican Committee for IBP, Tartu, 129-132.
Laisk, A., Moldau, H., Nilson, T. Ross, J. and
Tooming, H. 1971. On the modelling of the productivity of the plant cover. Botanical Journal, 56 (6):761-776 (in
Russian)
Niilisk, H., Nilson, T. and Ross, J. 1970. Radiation in plant
canopies and its measurement. In: (Setlik, I.ed.) Prediction and measurement of
photosynthetic productivity. Pudoc, Wageningen, 165-177.
Ross, J. and Nilson, T. 1968. The calculation of
photosynthetically active radiation in plant communities. In: Regime of
photosynthetically active radiation in vegetation. Inst. Phys. Astron.,
Estonian Acad. Sci., Tartu, 5-54 (in Russian).
Nilson, T. 1968. The calculation of spectral fluxes of shortwave
radiation in plant communities. In: Regime of photosynthetically active
radiation in vegetation. Inst. Phys. Astron., Estonian Acad. Sci., Tartu, 55-80
(in Russian).
Nilson, T. 1968. On the optimum geometrical arrangement of foliage
in the plant cover. In: Regime of photosynthetically active radiation in
vegetation. Inst. Phys. Astron., Estonian Acad. Sci., Tartu, 112-146 (in
Russian).
Ross, J. K. and Nilson, T. A. 1968. A mathematical
model of radiation regime of the plant cover. In: Actinometry and Atmospheric
Optics. Tallinn, Valgus, 263-281 (in Russian).
Nilson, T. A. 1968. Mathematial modelling of the radiation
regime of plant cover. Abstract of Candidate (Ph D) theses. Tartu University,
Tartu, 27 pp. (in Russian)
Ross, J. and Nilson, T. 1967. Radiation regime
of vegetation with horizontal leaves. In: Phytoactinometrical Investigations of
Vegetation. Tallinn, Valgus, 5-34 (in Russian).
Tooming, H. and Nilson, T. 1967. Basis of energetic
adaptation of vegetation on light. In: Phytoactinometrical Investigations of
Vegetation. Tallinn, Valgus, 35-63 (in Russian).
Ross, J. and Nilson, T. 1966. Vertical
distribution of biomass in agricultural crops. In: Photosynthetic systems of
high productivity. Nauka, Moscow, 96-108 (in Russian).
Ross, J. and Nilson, T. 1966. Spatial
orientation of leaves in crops and methods of its determination. In:
Photosynthetic systems of high productivity. Nauka, Moscow, 109-125 (in
Russian).
Ross, J. and Nilson, T. 1965. Penetration of
direct solar radiation in agricultural crops. Problems of radiation regime of
plant canopies. Inst. Phys. Astron., Estonian Acad. Sci., Tartu, 25-64 (in
Russian).
Ross, J. and Nilson, T. 1963. On the theory of
radiation regime of plant cover. In: Investigations of Atmospheric Physics, 4,
42-63 (in Russian).