Problems in heathland and grassland dynamics

Miles, J.

doi:10.1007/bf00118384

Cited by 38 publications

(24 citation statements)

References 88 publications

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“…Later, when heather increases in abundance, the competition with pine seedlings intensifies and seedling mortality increases (Aaltonen 1919;Hertz 1934). Heather is known to be a strong competitor with pine seedlings (Lehto 1956), a feature that might arise from its allelopathic properties (Miles 1981;Mallik 1995). Establishment cutting, site preparation and prescribed burning are not always effective enough to control heather (Norberg et al 2001) because heather recolonizes rapidly after a disturbance (Skre et al 1998).…”

Section: Discussionmentioning

confidence: 99%

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The contradictory role of understory vegetation on the success of Scots pine regeneration

Hyppönen¹,

Hallikainen²,

Niemelä³

et al. 2013

Silva Fenn.

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The contradictory role of understory vegetation on the success of Scots pine regenerationHyppönen M., Hallikainen V., Niemelä J., Rautio P. (2013). The contradictory role of understory vegetation on the success of Scots pine regeneration. Silva Fennica vol. 47 no. 1 article id 903. 19 p. AbstractIn North-East Finland, severe problems have been encountered in the natural regeneration of Scots pine (Pinus sylvestris L.) on sites where regeneration through site preparation usually is quite successful. We hypothesized that in that area understory vegetation, especially heather (Calluna vulgaris), crowberry (Empetrum hermaphroditum), mosses and lichens, could play a key role in this pattern. We found that in general, ground-and field-layer vegetation tends to be in a negative relationship with the establishment, growth and survival of pine seedlings. Some positive relationships were also observed. Lingonberry (Vaccinium vitis-idea) tended to improve seedling height growth. Heather, instead, seemed to have a contradictory role. It was positively related to seedling establishment but negatively to seedling growth. This dual role raises further questions about the primary reasons for the regeneration problems in North-East Finland. All in all, our results suggest that conventional methods of forest regeneration in these kinds of areas are not always effective enough and additional measures are needed. These might include severe prescribed burning along with site preparation in order to decrease the impact of the dominant ground-and field-layer vegetation on the success of Scots pine regeneration.

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Section: Discussionmentioning

confidence: 99%

“…They are thought to be the main factors in conifer regeneration failure and cause a "growth check" (interruption of growth) in disturbed (logging, fire etc.) habitats dominated by heather (Miles 1981). Yet, the interference mechanisms between heather and pine remain unclear (Norberg et al 2001).…”

Section: Introductionmentioning

confidence: 99%

The contradictory role of understory vegetation on the success of Scots pine regeneration

Hyppönen¹,

Hallikainen²,

Niemelä³

et al. 2013

Silva Fenn.

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“…Very young heather tends to be killed by fire. Thus, on one lowland heath in Hampshire, where only 2% of building phase heather stools failed to regenerate after a fire, on a part containing enough purple moor-grass to permit annual burning, 61% of heather stools failed to regenerate after being burnt twice in 2 consecutive years (Miles 1981).…”

Section: Purple Moor-grass 66mentioning

confidence: 99%

Moorland Management: A Study of Exmoor.

Tallis¹,

Miller²,

Miles³

et al. 1985

The Journal of Ecology

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“…Using these analyses, we estimated the intensity of agricultural systems on the RPLP area, which may serve as a good contribution to the search for new, more suitable and more efficient measures for achieving RPLP objectives. On the basis of an overview of national and foreign studies, we can assume the validity of the generally accepted thesis that less intensive agricultural systems have positive effects on the conservation of permanent grasslands and their ecosystem services (Kramberger, 1994;Nösberger and Rodriguez;Nösberger et al, 1994;Bignal et McCracken, 1996;Nielsen in Debosz, 1994;Zechmeister et al, 2002;Miles, 1981;Brak et al, 2004;Critchley et al, 2007;Hayes et al, 2007;Dunn et al, 2007;Gulliver et al, 2007;Buckingham and Peach, 2007, Marriot et al, 2009, Ketiš, 2010. In the second section, socio-economic analyses were carried out with an inquiry among 15 farmers in which the socio-economic and production characteristics of farms were obtained (property and size of farms, types and history of land use, grassland management practices, use of agricultural mechanisation), attitudes of farmers towards the formation of RPLP (acquaintance with reasons for park formation and mode of providing this information, knowledge of Natura 2000 areas) and reasons for not applying for the ERB and AE measures.…”

Section: Introductionmentioning

confidence: 99%

Contribution of agricultural policy measures to maintain grassland areas (the case of Radensko Polje Landscape Park) / Prispevek ukrepov kmetijske politike k ohranjanju travišč (primer krajinskega parka radensko polje)

Žgavec¹,

Eler²,

Udovč³

et al. 2013

Acta Agriculturae Slovenica

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Within this research paper, the enforcement of agricultural policy measures for farms that have their agricultural lands within the Radensko Polje Landscape Park (RPLP) were studied. The purpose of the study was to evaluate the effectiveness of the additional payment for the extensive rearing of female bovine animals (ERB) and agrienvironmental measures (AE measures) in terms of maintaining extensive agricultural systems or transitions from intensive systems to sustainable ones. This is especially desirable in the protected areas that also include landscape parks. The results of the survey of farmers of RPLP showed that both the ERB and AE measures are inefficient and fail to encourage farmers to implement more extensive farming. The main reasons for the poor enforcement of claims for ERB are intensive livestock production (milk production or bovine animals fattening), and the lack of information about the possibility of claim enforcement for ERB. Regarding AE measures, the main reasons for the failure are burdensome conditions and low financial compensation. Inventories of the composition of plant species on sample grasslands showed that the conditions of the habitats are still relatively good, because a relatively large number of species of high conservation value is present. V raziskavi smo na območju Krajinskega parka Radensko polje (KPRP) proučevali uveljavljanje ukrepov kmetijske politike za kmetije, ki imajo kmetijska zemljišča znotraj parka. Namen naloge je bil ugotoviti učinkovitost dodatnega plačila za ekstenzivno rejo ženskih govedi (ERG) in ukrepov kmetijsko okoljskega programa (KOP) v smislu ohranjanja ekstenzivnih kmetijskih sistemov oziroma prehodov iz intenzivnih sistemov v trajnostno naravnane. To je še posebej zaželeno na zavarovanih območjih, med katere sodijo tudi krajinski parki. Rezultati ankete pri kmetovalcih so pokazali, da so tako ukrep ERG kot ukrepi KOP na območju KPRP neučinkoviti in ne stimulirajo kmetovalcev k izvajanju bolj ekstenzivnega kmetijstva. Glavni razlogi za slabo uveljavljanje zahtevkov za ukrep ERG so v usmerjenosti v bolj intenzivno živinorejo (prireja mleka oziroma reja pitancev) in v premajhni informiranosti o možnosti uveljavljanja tega ukrepa. Pri ukrepih KOP so glavni razlogi za neuveljavljanje prezahtevni pogoji in premajhna finančna nadomestila. S popisi vegetacije vzorčnih travišč na območju parka smo ugotovili, da je kljub neuveljavljanju zahtevkov stanje habitatov še zmeraj relativno dobro, saj je še prisotno relativno veliko število naravovarstveno pomembnih vrst.Ključne besede: kmetijska politika/travišča/krajinski parki/trajnostni razvoj/varstvo narave/ subvencije Dubravka ŽGAVEC et al.

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Problems in heathland and grassland dynamics

Cited by 38 publications

References 88 publications

The contradictory role of understory vegetation on the success of Scots pine regeneration

The contradictory role of understory vegetation on the success of Scots pine regeneration

Moorland Management: A Study of Exmoor.

Contribution of agricultural policy measures to maintain grassland areas (the case of Radensko Polje Landscape Park) / Prispevek ukrepov kmetijske politike k ohranjanju travišč (primer krajinskega parka radensko polje)

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