Vegetation on lava fields in the Hekla area, Iceland (original) (raw)

Abstract

The vegetation development on 13 dated historical lava fields around the volcano Mt. Hekla is described. The lava fields have been divided into three main topographical categories, the main surface, holes and crags. The investigation was concentrated on the main surface at 22 sites in the 11 oldest lava fields, the oldest from 1 158, the youngest from 1947. At each site the topography, substrate (profile, pH and loss on ignition), flora and the physiognomy and the floristical composition of the vegetation were studied. Local climatic conditions (temperatures) are described for one lava field. The vegetation description included a floristic inventory, quantitative analyses (releves) of the vegetation both of permanent and non-permanent plots, drawings and photographic documentation. The total number of analyses made were: 1566 for the main surface, 81 for the holes and 13 for the crags. At each site the fo llowing abiotic factors were recorded: (a) the irregularity of the topography, (b) the age of the lava field, (c) the elevation, (d) the number of deposited tephra falls, (e) the quantity of deposited aeolian material between the tephra layers, (f) the cover of tephra and (g) the surface roughness was judged for every plot. In studies of the colonization of plants in the youngest fields records were also made of: (a) the position within the layer of clinkers, (b) the microsurface (texture) of the lava blocks and the age ofthe lava field when the analyses were carried out. The analyses made ofthe main surface were treated with the clustering and relocation program TABORD and with the ordination program Canonical Correspondence Analysis (CCA, CANOCO program). First, local clusters were obtained for each of the lava fields. These primary clusters were then clustered again to obtain a set of second-order clusters. The CANOCO results were used to check whether the second-order clusters were ecologically and floristically homogeneous or needed to be subdivided. The classification results were compared with vegetation types described earlier. Due to the phytosociologically incomplete floristic composition of many clusters an ad hoc typology was used with three hierarchical levels: communities, variants and facies. Eleven communities, some variants and facies are described and their distribution interpreted in terms of the prevailing environmental conditions. The dynamics of the vegetation in the historical lava fields is in the Hekla area, Iceland.-Acta phytogeogr. suec. 77, Uppsala. 110 pp.

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  200. Tilxen, R. & Bottcher, H. 1969. Weide-und Wiesen Gesellschaften (Molinio -Arrhenatheretea) in Sildwest Island. -Ranns6knast. N.-As 1 : 1-31.
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  202. V enzke, J.-F. 1 982. Zur B iotop-und V egetationsen twickl ung auf Islandischen Lavafeldem. -Essener geogr. Arb. 1: 29-6 1.
  203. Waldemarson Jensen, E. 1979. Succession in relationship to lagoon development in the Laitaure delta, North Sweden. -A cta phytogeogr. suec. 66: 1-120.
  204. Weibull, L. 1931. En samtida berattelse fn1n Clairvaux om arkebiskop Eskil av Lund. -Scandia IV: 270-294.
  205. Wentworth, C.K. & Macdonald, G.A. 1953. A description of the physical features of basaltic rocks and their origin. Structures and forms of basaltic rocks in Hawaii. -U.S. Geol. Surv. Bull.: l-95.
  206. Whiteaker, L.D. 1983. The vegetation and environment of the Crater District of Haleakala National Park. -Pacif. Sci. 37: 1-24.
  207. Wood, D.M. & Moral, R. del. 1987. Mechanisms of early primary succession in subalpine habitats on Mount St. Helens. -Ecology 68: 780-790.
  208. ACTA PHYTOGEOGRAPHICA SUECICA
  209. E. Almquist, Upplands vegetation och flora. (Vegeta tion and flora of Uppland.) 1929. ISBN 91-7210- 001-X.
  210. S. Thunmark, Der See Fiolen und seine Vegetation. 1931. 75:-. ISBN 91-72 1 0-002-8.
  211. G. E. Du Rietz, Life-forms of terrestrial flowering plants. I. 1931. 55:-. ISBN 91-72 10-003-6.
  212. B. Lindquist, Om den vildvaxande skogsalmens raser och deras utbredning i Nordvasteuropa. (Summary: The races of spontaneous Ulmus glabra Huds. and their distribution in NEW. Europe.) 1932. ISBN 91-72 10- 004-4.
  213. H. Osvald, Vegetation of the Pacific coast bogs of North America. 1933. 45 :-. ISBN 91-721 0-005 -2.
  214. G. Samuelsson, Die Verbreitung der hoheren Wasserpflanzen in Nordeuropa. 1934. ISBN 91-72 10- 006-0.
  215. G. Degelius, Das ozeanische Element der Strauch und Laubflechtenflora von Skandinavien. 1935. ISBN 91- 721 0-007-9.
  216. R. Sernander, Granskar och Fiby urskog. En studie over stormluckornas och marbuskarnas betydelse i den svenska granskogens regeneration. (Summary: The primitive forests of Granskar and Fiby. A study of the part played by storm-gaps and dwarf trees in the rege neration of the Swedish spruce forest.) 1936. 85:-. ISBN 91-72 1 0-008-7.
  217. R. Sterner, Flora der Inset oland. Die Areale der Gefarsspflanzen olands nebst Bemerkungen zu ihrer Oekologie und Soziologie. 1938. ISBN 91-72 1 0-009- 5.
  218. B. Lindquist, Dalby Soderskog. En skansk lOv skog i forntid och nutid. (Zusammenf.: Ein Laubwald in Schonen in der Vergangenheit und Gegenwart.) 1938. 90:-. ISBN 91-72 10-0 1 0-9.
  219. N. Stalberg, Lake Vattern. Outlines of its natural his tory, especially its vegetation. 1939. 45 :-. ISBN 91- 72 1 0-01 1-7.
  220. G. E. Du Rietz, A. G. Hannerz, G. Lohammar, R. Santesson & M. WLPrn, Zur Kenntnis der Vegetation Acta phytogeogr. suec. 77
  221. des Sees Takern. 1939. 45:-. ISBN 91-72 10-0 12-5.
  222. Vaxtgeografiska studier tillagnade Carl Skottsberg pa sexti oarsdagen 1/12 1940. (Geobotanical studies dedicated to C. Skottsberg.) 1940. 100:-. ISBN 91- 72 10-013-3.
  223. N. Hylander, De svenska formerna av Mentha gentilis L. coil. (Zusammenf. : Die schwedischen Formen der Mentha gentilis L. sensu coli.) 1941. 50:-. ISBN 91- 72 1 0-0 14-1.
  224. T. E. Hasselrot, Till kannedom om nagra nordiska umbil icariaceers utbredning. (Zusammenf. : Zur Kenntnis der Verbreitung einiger Umbilicariaceen in Fennoscandia.) 1941. 60:-. ISBN 91-7210-0 15-X.
  225. G. Samuelsson, Die Verbreitung der Alchemilla-Arten aus der Vulgaris-Gruppe in Nordeuropa. 1943. 70:-. ISBN 91-7210-0 1 6-8.
  226. Th. Arwidsson, Studien uber die Gefasspflanzen in den Hochgebirgen der Pite Lappmark. 1943 . 90:-. ISBN 91-7210-0 1 7-6.
  227. N. Dahlbeck, Strandwiesen am sudostlichen Oresund. (Summary: Salt marshes on the S. E. coast ofOresund.) 1945 . 55:-. ISBN 91-72 10-0 1 8-4.
  228. E. von Krustenstjerna, Bladmossvegetation och b1admossflora i Uppsalatrakten. (Summary: Moss flora and moss vegetation in the neighbourhood ofUppsala.) 1945 . 110 :-. ISBN 91-7210-01 9-2.
  229. N. Albertson, Osterplana hed. Ett alvaromnide pa Kinnekulla. (Zusammenf. : Osterplana hed. Ein A1vargebiet auf dem Kinnekulle.) 1946. 80:-. ISBN 91 -721 0-020-6.
  230. H. Sj ors, Myrvegetation i Bergslagen. (Summary : Mire vegetation in Bergslagen, Sweden.) 1948. 100:-. ISBN 91-72 10-02 1 -4.
  231. S. Ahlner, Utbredningstyper bland nordiska barrtrads lavar. (Zusammenf. : Verbreitungstypen unter fenno skandischen N adelbaumflechten. ) I 948. 90:-. ISBN 91-721 0-022-2.
  232. E. Julin, Vessers udde, Mark och vegetation i en igenvaxande !Ovang vid Bjarka-Saby. (Zusammenf. : Vessers udde. Boden und Vegetation in einer ver wachsenden Laubwiese bei Bjarka-Saby in Ostergot land, Siidschweden.)l 948. 75:-. ISBN 91 -721 0-023-0.
  233. M. Fries, Den nordiska utbredningen av Lactuca al pina, Aconitum septentrionale, Ranunculus platani fo lius och Polygonatum verticillatum. (Zusammenf. : Die nordische Verbreitung von Lactuca alpina ... ) 1 949. 50:-. ISBN 91-72 10-24-9.
  234. 0. Gjcerevoll, Sn0leievegetasjonen i Oviksfjellene. (Summary: The snow-bed vegetation of Mts Oviks fj allen, Jamtland, Sweden.) 1949. 60:-. ISBN 91-72 10- 025-7.
  235. H. Osvald, Notes on the vegetation of British and Irish mosses. 1949. 50:-. ISBN 91-7210-026-5.
  236. S. Selander, Floristic phytogeography of South Western Lule Lappmark (Swedish Lapland). l. 1950. 80:-. ISBN 91-721 0-027-3.
  237. S. Selander, Floristic phytogeography of SouthWestern Acta phytogeogr. suec. 77
  238. Lule Lappmark (Swedish Lapland). II. Karlvaxtfloran i sydvastra Lule Lappmark. (Summary: Vascular flora.) 1950. 65:-. ISBN 91-721 0-028-1.
  239. M. Fries, Pollenanalytiska vittnesbord om senkvartar vegetationsutveckling, sarskilt skogshistoria, i nord vastra Gotaland. (Zusammenf. : Pollenanalytische Zeugnisse der spatquartaren Vegetationsentwicklung, hauptsachlich der Waldgeschichte, im nordwestlichen Gotaland, Siidschweden.) 1951. 90:-. ISBN 91-72 10- 029-X.
  240. M. Wcern, Rocky-shore algae in the Oregrund Archi pelago. 1952. 100:-. ISBN 91-72 1 0-030-3.
  241. Rune, Plant life on serpentines and related rocks in the North of Sweden. 1953. 60:-. ISBN 9 1-721 0-03 1-1.
  242. P. Kaaret, Wasservegetation der Seen Orlangen und Trehorningen. 1953. 45:-. ISBN 91-721 0-032-X.
  243. T. E. Hasselrot, Nordliga lavar i Syd-och Mellansve rige. (Nordliche Flechten in Siid-und Mittelschweden.) 1953. 80:-. ISBN 91-72 10-033-8 .
  244. H. Sj ors, Slatterangar i Grangarde finnmark. (Summary: Meadows in Grangarde Finnmark, SW. Dalarna, Sweden.) 1954. 65 :-. ISBN 91-72 1 0-034-6.
  245. S. Kilander, Karlvaxternas ovre granser pa fj all i syd vastra Himtland samt angransande delar av Ha1jedalen och Norge. (Summary: Upper limits ot vascular plants on mountains in Southwestern Jamtland and adjacent parts of Harjedalen (Sweden) and Norway.) 1955. 75:-. ISBN 91-721 0-035 -4.
  246. N. Quennerstedt, Diatomeerna i Umgans sj ovegetation . (Summary: Diatoms in the lake vegetation ot the Langan drainage area, Jamtland, Sweden.) 1955. 75:-. ISBN 91-72 1 0-036-2.
  247. M.-B . Florin, Plankton of fresh and brackish waters in the Sodertalje area. 1957. 60:-. ISBN 91-721 0-037-0.
  248. M .-B . Florin, Insj ostudier i Mellansverige. Mikrovegetation och pollenregn i vikar av Ostersjo backenet och insjoar fran preboreal tid till nutid. (Summary : Lake studies in Central Sweden. Micro vegetation and pollen rain in inlets of the Baltic basin and in lakes from Preboreal time to the present day.) 1957. 40:-. ISBN 91-721 0-038-9.
  249. M. Fries, Vegetationsutveckling och odlingshistoria i Varnhemstrakten. En pollenanalytisk undersokning i Vastergotland. (Zusammenf. : Vegetationsentwicklung und Siedlungsgeschichte im Gebiet von Varnhem. Eine pollenanalytische Untersuchung aus Vastergotland (Siidschweden).) 1958. 55:-. ISBN 91-721 0-039-7.
  250. Bengt Pettersson, Dynamik och konstans i Gotlands flora och vegetation. (Resume: Dynamik und Konstanz in der Flora und Vegetation von Gotland, Schweden.) 1958. 125:-. ISBN 91-72 1 0-040-0.
  251. E. Uggla, Skogsbrandflilt i Muddus nationalpark. (Summary: Forest fire areas in Muddus National Park, Northern Sweden.) 1958. 60:-. ISBN 91-72 I 0-04 1-9.
  252. K. Thomasson , Nahuel Huapi. Plankton of some lakes in an Argentina National Park, with notes on terrestrial vegetation. 1959. 60:-. ISBN 91 -72 1 0-042-7.
  253. V. Gillner, Vegetations-und Standortsuntersuchungen in den Strandwiesen der schwedischen Westki.iste. 1 960. 75:-. ISBN 91-7210-043-5.
  254. E. Sj ogren, Epiphytische Moosvegetation in Laub waldern der Insel bland, Schweden. (Summary : Epi phytic moss communities in deciduous woods on the island of bland, Sweden.) 1961. 65:-. ISBN 917210- 044-3 (ISBN 91-72 1 0-444-9).
  255. G. Wistrand, Studier i Pite Lappmarks karlvaxtflora, med sarskild hansyn till skogslandet och de iso1erade fj allen. (Zusammenf.: Studien uber die Gefasspflan zenflora der Pite Lappmark mit besonderer Beri.ick sichtigung des Waldlandes und der isolierten niederen Fj elde.) 1962. 80:-. ISBN 91-721 0-045-1 (ISBN 91- 721 0-445-7).
  256. R. lvarsson, Lovvegetation i Mollosunds socken. (Zu sammenf. : Die Laubvegetation im Kirchspiel Mol losund, Bohuslan, Schweden.) 1962. 70:-. ISBN 91- 721 0-046-X (ISBN 91-721 0-446-5).
  257. K. Thomasson, Araucanian Lakes. Plankton studies in North Patagonia, with notes on terrestrial vegetation. 1963. 75:-. ISBN 91-72 1 0-047-8.
  258. E. Sj ogren, Epilitische und epigaische Moosvegetation in Laubwaldern der Insel bland, Schweden. (Summary: Epilithic and epigeic moss vegetation in deciduous woods on the island of bland, Sweden.) 1964. 90:-. ISBN 91-72 1 0-048-6 (ISBN 91-72 10-448-1 ).
  259. 0. Hedberg, Features of afroalpine plant ecology. (Resume fran9ais.) 1964. 90:-. ISBN 91-721 0-049-4 (ISBN 91-7210-449-X).
  260. The Plant Cover of Sweden . A study dedicated to G. Einar Du Rietz on his 70th birthday by his pupils. 1965. 155:-. ISBN 91-72 1 0-050-8.
  261. T. F lensburg, Desmids and other benthic algae of Lake Kavsjon and Store Mosse . SW Sweden. 1967. 75:-. ISBN 91-721 0-05 1-6 (ISBN 91-721 0-451-1).
  262. E. Skye, Lichens and air pollution. A study of crypto gamic epiphytes and environment in the Stockholm region. 1968. 95 :-. ISBN 91-7210-052-4 (ISBN 91- 721 0-452-X).
  263. Jim Lundqvist, Plant cover and environment of steep hillsides in Pite Lappmark. (Resume: La couverture vegetale et 1 'habitat des flancs escarpes des collines de Pite Lappmark.) 1968. 90:-. ISBN 91-7210-053-2 (ISBN 91-72 10-453-8).
  264. Conservation of Vegetation in Africa South of the Sahara. Proc. of symp. at 6th plen . meeting of AETF AT. Ed. by Inga and Olov Hedberg. 1968. 105:-. ISBN 91- 721 0-054-0 (ISBN 91-72 1 0-454-6).
  265. L.-K. Konigsson, The Holocene history of the Great Alvar of bland. 1968. 105:-. ISBN 91-72 10-055-9 (ISBN 91-72 10-455-4 ).
  266. H. P. Hallberg, Vegetation auf den Schalenblager ungen in Bohuslan, Schweden. (Summary: Vegetation on shell deposits in Bohuslan, Sweden.) 1971. 70:-. ISBN 91-7210-056-7 (ISBN 91-72 10-456-2).
  267. S. Fransson, Myrvegetation i sydvastra Varmland. (Summary: Mire vegetation in south-western Varm- 113 land, Sweden.) 1972. 70:-. ISBN 91-721 0-057-5 (ISBN 91-72 1 0-457-0).
  268. G. Wallin, Lovskogsvegetation i Sjuharadsbygden. (Summary: Deciduous woodlands in Sjuharadsbygden, Vastergot1and, south-western Sweden.) 1973. 90:-. ISBN 91-72 1 0-058-3 (ISBN 91-72 10-458-9).
  269. D. Johansson, Ecology of vascular epiphytes in West African rain forest. (Resume: Ecologie des epiphytes vasculaires dans la foret dense humide d' Afrique occidentale.) 1974. 100:-. ISBN 91-7210059-1 (ISBN 91-721 0-459-7).
  270. N. Olsson, Studies on South Swedish sand vegetation. 1974. 95:-. ISBN 91-72 10-060-5 (ISBN 91-72 1 0-460- 0).
  271. H. Hytteborn, Deciduous woodland at Andersby, Eastern Sweden. Above-ground tree and shrub produc tion. 1975. 70:-. ISBN 91-7210-06 1-3 (ISBN 91-7210- 46 1-9).
  272. N. P ersson, Deciduous woodland at Andersby, Eastern Sweden. Field-layer and below-ground production. 1975. 60:-. ISBN 91-72 10-062-1 (ISBN 91-721 0-462-
  273. I
  274. S. Brakenhielm, Vegetation dynamics of afforested farmland in a district of South-eastern Sweden. 1977. 80:-. ISBN 91-7210-063-X (ISBN 91-7210-463-5).
  275. M. Ammar, Vegetation and local environment on shore ridges at Vickleby, bland, Sweden. An analysis. 1978. 80:-. ISBN 91-721 0-064-8 (ISBN 91-7210-464-3).
  276. L. Kullman, Change and stability in the altitude of the birch tree-limit in the southern Swedish Scandes 1915- 1975. 1979. 80:-. ISBN 91-7210-065-6 (ISBN 91- 72 1 0-465-1 ).
  277. E. Waldemarsonlensen, Successions in relationship to lagoon development in the Laitaure delta, North Sweden. 1979. 80:-. ISBN 91-72 1 0-066-4 (ISBN 91- 721 0-466-X).
  278. S. Tuhkanen, Climatic parameters and indices in plant geography. 1980. 80:-. ISBN 91-7210-067-2 (ISBN 91.7210-467 -8).
  279. Studies in plant ecology dedicated to Hugo Sjors. Ed. Erik Sjogren. 1980. 110:-. ISBN91-72 1 0-068-0 (ISBN 91-721 0-468-6).
  280. C. Nilsson, Dynamics of the shore vegetation of a North Swedish hydro-electric reservoir during a 5-year period. 1981. 80:-. ISBN 91-7210-069-9 (ISBN 91- 72 1 0-469-4).
  281. K. Warenberg, Reindeer forage plants in the early grazing season. Growth and nutritional content in rela tion to climatic conditions. 1982. 80:-. ISBN 91-72 10- 070-2 (ISBN 91-72 1 0-470-8).
  282. C. Johansson, Attached algal vegetation in running waters ofJamtland, Sweden. 1982. 85:-. ISBN 917210- 07 1-0 (ISBN 91-72 10-4 71-6).
  283. E. Rosen, Vegetation development and sheep grazing in limestone grass lands of south bland, Sweden. 1982. 100:-. ISBN 91-7210-072-9 (ISBN 91-721 0-472-4).
  284. L. Zhang, Vegetation ecology and population biology of Fritillaria meleagris L. at the Kungsangen Nature Acta phytogeogr. suec. 77
  285. Reserve, Eastern Sweden. 1983. 95 :-. ISBN 91-7210- 073-7 (ISBN 91-72 1 0-473-2).
  286. I. Backeus, Aboveground production and growth dy namics of vascular bog plants in central Sweden. 1985. 95:-. ISBN 91-72 1 0-074-5 (ISBN 91-72 1 0-474-0.
  287. E. Gunnlaugsdottir, Composition and dynamical sta tus of heathland communities in Iceland in relation to recovery measures. 1985. 95:-. ISBN 91-72 1 0-075-3 (ISBN 91-72 10-475-9).
  288. Ed. Erik Sjogren. Plant cover on the limestone Alvar on bland. Ecology-Sociology-Taxonomy. 1988. 120:- ISBN 91-721 0-076-1 (ISBN 91-721 0-476-7).
  289. A .H. Bjarnason , Vegetation on lava fields in the Hekla area, Iceland. 1991.125:-ISBN 91-72 1 0-077-X (ISBN 91-721 0-477-6).
  290. Lim ited number of cloth-bound copies of Acta 44, 45 , 46, 48, 49, 51,52, 53, 56, 57, 61, 63, 66, 67, 68, 69, 70, 71,72, 73, 74, 75, 76 are available through ISBN nos. in brackets refer to cloth-bound copies. Nos. I, 4, 6, 7, 9 are out of print. STUDIES IN PLANT ECOLOGY (vols. 1-18 V AXTEKOLOGISKA STUDIER)
  291. S. Brakenhielm & T. Ingelog, Vegetationen i Kungs hamn-Morga naturreservat med fors1ag till skotsel plan. (Summary: Vegetation and proposed manage ment in the Kungshamn-Morga Nature Reserve south of Uppsala.) 1972. 30:-. ISBN 91-7210-80 1 -0.
  292. T. Ingelov & M. Risling, Kronparken vid Uppsala, historik och bestandsanalys av en 300-arig tallskog. (Summary: Kronparken, history and analysis of a 300- year old pinewood near Uppsala, Sweden.) 1973. 30: . ISBN 91-72 1 0-802-9.
  293. H. Sj ors och medarb., Skyddsvarda myrar i Koppar bergs Jan. (Summary: Mires considered for protection in Kopparberg County (Prov . Dalarna, Central Sweden).) 1973. 30:-. ISBN 91-72 10-803-7.
  294. L. Karlsson, Autecology of cliff and scree plants in Sarek National Park, northern Sweden 1973. 40:-. ISBN 91-7210-804-5.
  295. B. Klasvik, Computerized analysis of stream algae. 1974. 30:-. ISBN 91-72 10-805-3.
  296. Y. Dahlstrom-Ekbohm, Svensk miljovards-och omgivningshygienlitteratur 1952-1972. Bibliografi och analys. 1975. 30:-. ISBN 91-72 1 0-806-1.
  297. L. Rodenborg, Bodennutzung, Pflanzenwelt und ihre Veranderungen in einem alten Veidegebiet auf M ittel Oland, Sweden. 1976. 30:-. ISBN 91-72 10-807-X.
  298. H. Sj ors & Ch. Nilsson, Vattenutbyggnadens effekter pa levande natur. En faktaredovisning i:ivervagande fran Umealven. (Summary: Bioeffects of hydroelectric development. A case study based mainly on obser vations along the Ume River, northern Sweden .) 1976. 45 :-. ISBN 91-721 0-808-8.
  299. 9. f. Lundqvist & G. Wistrand, Strandflora inom ovre och mellersta Skelleftealvens vattensystem . Med en sam manfattning betraffande botaniska skyddsvarden. (Summary: Riverside vascular flora in the upper and middle catchment area of the River Skelleftealven, northern Sweden .) 1976. 35:-. ISBN 91-72 1 0-809-6.
  300. A. Miiller-Haeckel, Migrationsperiodik einzelliger Algen in Fliessgewassern . 1976. 20:-. ISBN 91-7210- 810-X.
  301. A. Sj odin, Index to distribution maps of bryophytes 1887-1975. I. Musci. 1980. 60:-(hard-bound). ISBN 91-72 10-8 11-8.
  302. A. Sj odin, Index to distribution maps of bryophytes 1887-1975. II. Hepaticae. 1980. 40:-(hardbound). ISBN 91-72 10-8 1 2-6.
  303. 0. Eriksson, T. Palo & L. Soderstrom, Renbetning vintertid. Undersi:ikningar rorande svensk tamrens naringsekologi under snoperioden. 1981. 30:-. lSE N 91-7210-8 1 3-4.
  304. G. Wistrand, Bidrag till Pite lappmarks vaxtgeografi . 1981. 35:-. ISBN 91-7210-8 1 4-2.
  305. T. Karlsson, Euphrasia rostkoviana i Sverige. 1982. 40:-. ISBN 91-72 10-81 5-0.
  306. Ed. Erik Sjogren, Theory and models in vegetation science: Abstracts. Ed. Rik Leemans, I. Colin Prentice & Eddy van der Maarel. 1985. 50:-. ISBN 91-7210- 816-9.
  307. /. Backeus, Mires in the Thaba-Putsoa Range of the Maloti, Lesotho. 1988. 50:-. ISBN 91-72 1 0-8 17-7.
  308. Forests of the world -diversity and dynamics (Abstracts) 1989. 125:-. ISBN 91-72 1 0-8 1 8-5.
  309. Distributors : Svenska Vaxtgeografiska Sallskapet, Box 559, S-75 1 22 Uppsala, Sweden.
  310. Almqvist & Wiksell International , Box 62, S-101 20 Stockholm, Sweden. Acta phytogeogr. suec. 77