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Articles containing the keyword 'land use'

Category : Article

article id 5517, category Article
Tuomo Kotimäki. (1993). Ristipaineet valtion metsien käytön valintatilanteissa. Silva Fennica vol. 27 no. 3 article id 5517. https://doi.org/10.14214/sf.a15678
English title: Contradictory targets in the use of state forests of Finland.
Original keywords: valtionmetsät; Metsähallitus; metsänhoito; metsien monikäyttö; aluepolitiikka; maankäyttö; kestävä metsätalous
English keywords: forest management; Finland; forest management planning; Forest Service; state forests; multiple use of forests; conflicting targets; land use; regional planning
Abstract | View details | Full text in PDF | Author Info

The paper discusses the principles of forest management in the state forests of Finland, and the contradictions in choosing between the different land uses. These principles of the forest management are sustainable use of natural resources, economic and effective management, and taking in account nature conservation, protection of environment, recreation services and employment issues in all activities of the Forest Service. Even regional policy affects the management planning in the state forests.

  • Kotimäki, E-mail: tk@mm.unknown (email)
article id 5363, category Article
Veli Pohjonen, Timo Pukkala. (1988). Profitability of establishing Eucalyptus globulus plantations in the Central Highlands of Ethiopia. Silva Fennica vol. 22 no. 4 article id 5363. https://doi.org/10.14214/sf.a15520
Keywords: reforestation; Ethiopia; Eucalyptus globulus; simulation of growth; economic analysis; land use planning
Abstract | View details | Full text in PDF | Author Info

The economic analysis is based on computer simulations which covered a seedling rotation and three successive coppice rotations. Calculations were carried out for the four site productivity classes in Eucalyptus globulus plantations. The rotation length that maximized the land expectation value is 12–20 years for seedling rotation and 8–16 years for coppice rotations with discounting rates 2–8%. The mean wood production is over 40 m3/ha/a in the best site class and about 10 m3/ha/a in the poorest class with rotation lengths ranging from 10 to over 20 years. Thinnings increase the wood production and land expectation value by a few percentage points. In areas suitable to Eucalyptus globulus growth, the land expectation value is considerably higher in forestry than in agriculture, except in very poor areas or with very high rate of interest.

The PDF includes an abstract in Finnish.

  • Pohjonen, E-mail: vp@mm.unknown (email)
  • Pukkala, E-mail: tp@mm.unknown
article id 5031, category Article
Tom Simons. (1979). Arkkitehdit ja metsänhoitajat Suomen metsäisen maiseman muotoilijoina. Silva Fennica vol. 13 no. 2 article id 5031. https://doi.org/10.14214/sf.a14888
English title: The role of architects and foresters in shaping the forest landscape of Finland.
Original keywords: metsämaisema; maankäyttö; seminaari; maisemasuunnittelu; arkkitehtuuri; luontoarvot
English keywords: forest landscape; land uses; seminar; MAB; architecture; landscape design
Abstract | View details | Full text in PDF | Author Info

The article describes the two approaches which are evident in planning and management of nature and landscape. One is based on traditional architectural thinking, emphasizing the significance of subjective intuition and practical creative work. The other has evolved from the study of the economic utilization of natural resources, emphasizing the significance of rational thinking and scientific analysis.

This paper was presented in the ‘Man and the Biosphere’ programme project 2 seminar held on August 24–25 1978 in Hyytiälä research station of University of Helsinki.

The PDF includes a summary in English.

  • Simons, E-mail: ts@mm.unknown (email)
article id 5030, category Article
Camilla Rosengren. (1979). Luonnonkasvillisuus asuntoalueilla. Silva Fennica vol. 13 no. 2 article id 5030. https://doi.org/10.14214/sf.a14886
English title: Natural vegetation within housing areas.
Original keywords: maankäyttö; taajamametsät; seminaari; luonnonympäristö; maisemasuunnittelu; taajamat
English keywords: landscape planning; urban forests; land uses; seminar; MAB; natural envirionment; urban areas
Abstract | View details | Full text in PDF | Author Info

The article describes the results of the studies made in 24 Finnish housing areas. They show that the building density is not as important as the way of building and the site planning, in the view of preserving natural vegetation in the site. Building on slopes was difficult with modern building techniques because of the extensive earthwork required. 

This paper was presented in the ‘Man and the Biosphere’ programme Project 2 seminar held on August 24–25 1978 in Hyytiälä research station of University of Helsinki. 

The PDF includes a summary in English. 

  • Rosengren, E-mail: cr@mm.unknown (email)
article id 5029, category Article
Seppo Kellomäki. (1979). Metsän tarjoamat fyysiset hyödyt yhdyskuntasuunnittelussa. Silva Fennica vol. 13 no. 2 article id 5029. https://doi.org/10.14214/sf.a14885
English title: Benefits of forests in urban environment .
Original keywords: kuusi; kaupunkimetsät; maankäyttö; seminaari; meluntorjunta; saasteiden torjunta; metsien ympäristövaikutukset
English keywords: Norway spruce; Picea abies; noise abatement; urban forests; land uses; seminar; MAB; air impurities
Abstract | View details | Full text in PDF | Author Info

The potentials of forests in abatement of urban noise and air impurities are discussed based on literature and calculations. Excess attenuation of 6–7 dB seems to be possible in noise abatement applying Norway spruce (Picea abies (L.) H. Karst.) plantations. The potential in dust sedimentation is of 10,000–20,000 kg/ha/year and absorbtion to 7 kg/ha/yr. Forests seem also have considerable potential for control of climatic conditions in urban areas. Management of forests in urban environment is discussed. 

This paper was presented in the ‘Man and the Biosphere’ programme Project 2 seminar held on August 24–25 1978 in Hyytiälä research station of University of Helsinki. 

The PDF includes a summary in English. 

  • Kellomäki, E-mail: sk@mm.unknown (email)
article id 5028, category Article
Matti Leikola. (1979). MAB 2-projekti metsäbiologisen tutkimustyön tulosten hyödyntäjänä. Silva Fennica vol. 13 no. 2 article id 5028. https://doi.org/10.14214/sf.a14884
English title: Benefits of MAB Project 2 by the research work on forest biology in Finland.
Original keywords: metsäntutkimus; metsäekologia; maankäyttö; seminaari
English keywords: Finland; forest ecology; forest research; land uses; seminar; MAB
Abstract | View details | Full text in PDF | Author Info

MAB Project 2 concentrates on the influences of man’s activities on forests with no special consideration to any particular research field. At the same time as the swift development of research methods has brought the natural sciences and forest biology very near to each other, the circle of users of research results in forest biology has widened to include area and city planners etc. In Finland, the main role of MAB Project 2 is to promote mutual exchange between the users and producers of research results in forest biology and to facilitate both national and international co-operation between all research workers and organizations interested in this field.

This paper was presented in the ‘Man and the Biosphere’ programme project 2 seminar held on August 24–25 1978 in Hyytiälä research station of University of Helsinki.

  • Leikola, E-mail: ml@mm.unknown (email)
article id 5027, category Article
Ossi Eskelinen. (1979). Pyynikin ulkoilualue. Silva Fennica vol. 13 no. 2 article id 5027. https://doi.org/10.14214/sf.a14883
English title: The natural environmental welfare factors of forested outdoor recreation area Pyynikki.
Original keywords: seminaarit; maankäyttö; Pyynikki; ulkoilualueet
English keywords: Finland; recreation areas; land uses; seminar; MAB
Abstract | View details | Full text in PDF | Author Info

The article examines the outdoor recreation area of Pyynikki in the centre of the city of Tampere in Southern Finland from the viewpoint of social sciences. It was demonstrated that sociological factors are connected with the physical environmental factors by the welfare factors.

This paper was presented in the ‘Man and the Biosphere’ programme Project 2 seminar held on August 24–25 1978 in Hyytiälä research station of University of Helsinki.

The PDF includes a summary in English.

  • Eskelinen, E-mail: oe@mm.unknown (email)
article id 5025, category Article
Eero Paavilainen. (1979). MAB 2 -projekti Suomessa. Silva Fennica vol. 13 no. 2 article id 5025. https://doi.org/10.14214/sf.a14879
English title: MAB 2 project in Finland.
Original keywords: seminaarit; maankäyttö; metsäekosysteemit
English keywords: Finland; forest ecosystems; land uses; seminar; MAB
Abstract | View details | Full text in PDF | Author Info

The article examines the problems of interdisciplinary research and the Finnish participation in MAB Project 2, which concentrates on the influences of man’s activities on forests. From the Finnish point of view, the main research areas are the effects of forestry activities which affect large areas, multiple use of forests, forests and environmental pollution, and the effects of energy economy.

This paper was presented in the ‘Man and the Biosphere’ programme project 2 seminar held on August 24–25 1978 in Hyytiälä research station of University of Helsinki.

The PDF includes a summary in English.

  • Paavilainen, E-mail: ep@mm.unknown (email)
article id 5024, category Article
Ossi V. Lindqvist. (1979). Pelastaako luonnon moninaiskäyttö luonnon? Silva Fennica vol. 13 no. 2 article id 5024. https://doi.org/10.14214/sf.a14878
English title: Will the multiple use of nature save nature?
Original keywords: metsäekologia; metsien monikäyttö; seminaarit; maankäyttö
English keywords: forest ecology; multiple use of forests; land uses; seminar; MAB
Abstract | View details | Full text in PDF | Author Info

The term ’multiple use’ was introduced in Finland in the late 1960’s as a planning principle for the use of natural resources. It was hoped that multiple use, in contrast to ’single use’, would be less destructive and more amenable to multiple interests and to more efficient planning. However, the term ’multiple use’ carries several hidden assumptions which superficially at least seem easy to handle but which may, at the very end, prove equally destructive to the planned object. This term generally lacks the dimensions of time and place. In reality, different uses follow in a definite sequence and in definite place. As a planning strategy, multiple use may lead, if carelessly applied, to quite unexpected results that run contrary to the intended purposes.

This paper was presented in the ‘Man and the Biosphere’ programme project 2 seminar held on August 24–25 1978 in Hyytiälä research station of University of Helsinki.

The PDF includes a summary in English.

  • Lindqvist, E-mail: ol@mm.unknown (email)
article id 5023, category Article
Anu Pärnänen. (1979). Erilaisten maankäyttötapojen ja hoitotoimenpiteiden ekologiset vaikutukset metsiin. Silva Fennica vol. 13 no. 2 article id 5023. https://doi.org/10.14214/sf.a14877
English title: Ecological effects of different land uses and management practices on boreal landscapes – Man and the Biosphere Programme, seminar of Project 2.
Original keywords: ekosysteemit; metsäekologia; seminaarit; maankäyttö; MAB
English keywords: forest ecology; forest ecosystems; land uses; UNESCO; seminar
Abstract | View details | Full text in PDF | Author Info

Man and the Biosphere (MAB) programme of UNESCO was launched in 1970. This interdisciplinary programme represents a new integrated approach to research, training and action aimed at improving man’s partnership with the environment. It consists of 14 project areas.

The Academy of Finland and the Finnish Committee for the MAB, in cooperation with the University of Helsinki and the city of Tampere organized a seminar with an aim of reviewing the execution of the Finnish participation in the MAB project No. 2. The seminar took place at Hyytiälä, a forest research station of the University of Helsinki, on August 24–25 1978.

During the seminar, an excursion was made to Pyynikki esker, a unique natural park close to the centre of the city of Tamper. Eight papers were presented and discussed in the seminar. The papers are published in this issue of Silva Fennica.

The PDF includes a summary in English.

  • Pärnänen, E-mail: ap@mm.unknown (email)

Category : Research article

article id 1618, category Research article
Miguel Genin, Mohamed Alifriqui, Abdessamad Fakhech, Mohamed Hafidi, Lahcen Ouahmane, Didier Genin. (2017). Back to forests in pre-Saharan Morocco? When prickly pear cultivation and traditional agropastoralism reduction promote argan tree regeneration. Silva Fennica vol. 51 no. 1B article id 1618. https://doi.org/10.14214/sf.1618
Keywords: arid zones; Argania spinosa; agroforestry parklands; desertification; facilitation factors; land use changes; Opuntia ficus-indica
Highlights: There was a significant positive relationship between the age of implanted prickly pear orchards and natural argan tree regeneration; This relationship is mainly associated with interconnected changes in traditional land uses and the activation of facilitation factors such as an enhancement of the soil’s organic matter and nurse plant phenomena; This example constitutes a remarkable alternative model for thinking about agricultural development while combating desertification.
Abstract | Full text in HTML | Full text in PDF | Author Info

In the southwestern pre-Saharan arid zone of Morocco, the endemic argan forest (Argania spinosa) had been almost completely destroyed in the 1960s due to intensive coal mining and mixed cereal-livestock farming. These activities turned out to be unviable and a massive rural exodus occurred in the 1970s. Local populations started to develop maintenance-free prickly pear (Opuntia ficus-indica) cultivation at large scale in order to keep their land ownership rights, while reducing their traditional agropastoral activity. We conducted a survey in order to characterize the relationships between the age of prickly pear orchards and argan tree regeneration. We also explored facilitating factors, such as soil organic matter and mycorrhiza. Results showed a high positive correlation (r2 = 0.75, p < 0.001) between the age of prickly pear orchards and argan tree resprouts, but with differences depending on a continentality gradient. The soil organic matter content also showed highly significant differences (p < 0.001) depending on the age of the prickly pear plantation, while spora density did not show such differences. The recent high economic value attributed to prickly pear fruits, and to both argan and prickly pear seed oil, has given farmers the opportunity to develop a lucrative agricultural activity, while promoting the recovery of native vegetation. This situation constitutes a remarkable example of speculative agricultural development in a very harsh environment, in phase with ecological priorities for combating desertification. It could represent an alternative to the externally-generated projects sustained by high levels of public funding, with ecological, economic and social impacts which are sometimes questionable.

  • Genin, Institut de Recherche pour le Développement (IRD) & Aix-Marseille Université, Laboratoire Population, Environnement, Développement, UMR151 AMU-IRD, Marseille, France E-mail: miguel.genin@gmail.com
  • Alifriqui, Cadi Ayyad University (UCAM), Laboratoire d’Ecologie et Environnement (CNRST, URAC 32), Faculté des Sciences Semlalia, Marrakech, Morocco E-mail: alifriqui@gmail.com
  • Fakhech, Cadi Ayyad University (UCAM), Laboratoire d’Ecologie et Environnement (CNRST, URAC 32), Faculté des Sciences Semlalia, Marrakech, Morocco E-mail: abdessamad.fakhech@edu.uca.ac.ma
  • Hafidi, Cadi Ayyad University (UCAM), Laboratoire d’Ecologie et Environnement (CNRST, URAC 32), Faculté des Sciences Semlalia, Marrakech, Morocco E-mail: hafidi.ucam@gmail.com
  • Ouahmane, Cadi Ayyad University (UCAM), Laboratoire d’Ecologie et Environnement (CNRST, URAC 32), Faculté des Sciences Semlalia, Marrakech, Morocco E-mail: l.ouahmane@gmail.com
  • Genin, Institut de Recherche pour le Développement (IRD) & Aix-Marseille Université, Laboratoire Population, Environnement, Développement, UMR151 AMU-IRD, Marseille, France E-mail: didier.genin@univ-amu.fr (email)
article id 1628, category Research article
Jürgen Aosaar, Ülo Mander, Mats Varik, Hardo Becker, Gunnar Morozov, Martin Maddison, Veiko Uri. (2016). Biomass production and nitrogen balance of naturally afforested silver birch (Betula pendula Roth.) stand in Estonia. Silva Fennica vol. 50 no. 4 article id 1628. https://doi.org/10.14214/sf.1628
Keywords: aboveground biomass; birch; afforestation; soil carbon; land use change; agricultural land; nitrogen budget
Highlights: Leafless aboveground biomass of the 17-year-old natural silver birch stand growing in abandoned agricultural land reached 94 Mg ha–1; The largest fluxes in N budget were net nitrogen mineralization and gaseous N2-N emission; Nitrogen leaching was low; Soil N content increased with the stand age, soil C content remained stable; N2O and N2 fluxes in boreal deciduous forest were analysed.
Abstract | Full text in HTML | Full text in PDF | Author Info

Silver birch (Betula pendula Roth.) is one of the main pioneer tree species occupying large areas of abandoned agricultural lands under natural succession in Estonia. We estimated aboveground biomass (AGB) dynamics during 17 growing seasons, and analysed soil nitrogen (N) and carbon (C) dynamics for 10 year period in a silver birch stand growing on former arable land. Main N fluxes were estimated and nitrogen budget for 10-year-old stand was compiled. The leafless AGB and stem mass of the stand at the age of 17-years were 94 and 76 Mg ha–1 respectively. The current annual increment (CAI) of stemwood fluctuated, peaking at 10 Mg ha–1 yr–1 at the age of 15 years; the mean annual increment (MAI) fluctuated at around 4–5 Mg ha–1. The annual leaf mass of the stand stabilised at around 3 Mg ha–1 yr–1. The stand density decreased from 11600 to 2700 trees ha–1 in the 8- and 17-year-old stand, respectively. The largest fluxes in N budget were net nitrogen mineralization and gaseous N2-N emission. The estimated fluxes of N2O and N2 were 0.12 and 83 kg ha–1 yr–1, respectively; N leaching was negligible. Nitrogen retranslocation from senescing leaves was approximately 45 kg ha–1, N was mainly retranslocated into stembark. The N content in the upper 0–10 cm soil layer increased significantly (145 kg ha–1) from 2004 to 2014; soil C content remained stable. Both the woody biomass dynamics and the N cycling of the stand witness the potential for bioenergetics of such ecosystems.

  • Aosaar, Estonian University of Life Sciences, Institute of Forestry and Rural Engineering, Kreutzwaldi 1, 51014 Tartu, Estonia E-mail: jyrgen.aosaar@emu.ee (email)
  • Mander, University of Tartu, Institute of Ecology and Earth Sciences, Ülikooli 18, 50090 Tartu, Estonia E-mail: ulo.mander@ut.ee
  • Varik, Estonian University of Life Sciences, Institute of Forestry and Rural Engineering, Kreutzwaldi 1, 51014 Tartu, Estonia E-mail: mats.varik@emu.ee
  • Becker, Estonian University of Life Sciences, Institute of Forestry and Rural Engineering, Kreutzwaldi 1, 51014 Tartu, Estonia E-mail: hardo.becker@emu.ee
  • Morozov, Estonian University of Life Sciences, Institute of Forestry and Rural Engineering, Kreutzwaldi 1, 51014 Tartu, Estonia E-mail: gunnar.morozov@emu.ee
  • Maddison, University of Tartu, Institute of Ecology and Earth Sciences, Ülikooli 18, 50090 Tartu, Estonia E-mail: martin.maddison@ut.ee
  • Uri, Estonian University of Life Sciences, Institute of Forestry and Rural Engineering, Kreutzwaldi 1, 51014 Tartu, Estonia E-mail: veiko.uri@emu.ee

Category : Review article

article id 378, category Review article
Yaoqi Zhang, Daowei Zhang, John Schelhas. (2005). Small-scale non-industrial private forest ownership in the United States: rationale and implications for forest management. Silva Fennica vol. 39 no. 3 article id 378. https://doi.org/10.14214/sf.378
Keywords: non-industrial private forest; forest land parcelization; timber supply; transaction costs; economic efficiency; land use change
Abstract | View details | Full text in PDF | Author Info
The transaction cost approach is used to explain why small non-industrial private forest (NIPF) ownerships are increasing in the U.S. We argue that the number of small NIPF owners have increased because: 1) a significant amount of forestland is no longer used economically if primarily for timber production, but rather for non-timber forest products and environmental services (particularly where population density is high), 2) when a person makes frequent use of non-timber products and services, owning forestland is more efficient for them because it saves the transaction costs involved in getting them from the market, 3) forestland parcelization takes place when non-timber value increases faster than timber value, and 4) marginal value for non-timber product is diminishing much faster than that for timber production. The paper also discusses implications of the parcelization of NIPF ownerships on forest management.
  • Zhang, School of Forestry & Wildlife Sciences, Auburn University, AL 36849-5418, USA E-mail: yaoqi.zhang@auburn.edu (email)
  • Zhang, School of Forestry & Wildlife Sciences, Auburn University, AL 36849-5418, USA E-mail: dz@nn.us
  • Schelhas, Southern Research Station, USDA Forest Service, Tuskegee University, AL, USA E-mail: js@nn.us

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