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Trudności z fitosocjologiczną klasyfikacją zbiorowisk łąkowych

100%

Kryszak A.

Łąkarstwo w Polsce

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2009

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tom 12

2

Roznorodnosc florystyczna zespolow lak i pastwisk klasy Molinio-Arrhenatheretea R. Tx. 1937 w Wielkopolsce w aspekcie ich wartosci gospodarczej

100%

Kryszak A.

Roczniki Akademii Rolniczej w Poznaniu. Rozprawy Naukowe

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2001

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nr 314

1-181

3

Ziola na lakach i pastwiskach

100%

Kryszak A.

Bydło

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2007

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nr 08-09

36-40

4

Synantropizacja wybranych zbiorowisk lakowych

100%

Kryszak A.

Woda - Środowisko - Obszary Wiejskie

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2004

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tom 04

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nr 1[10]

201-208

5

Causes and directions of changes of meadow-pasture vegetations of the Wielki Leg Obrzanski (WLO)

63%

Klarzynska A., Kryszak A.

Steciana

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2014

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tom 18

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nr 2

The paper presents results of the studies conducted to determine causes and directions of transformations in vegetation of meadow-pasture communities in the area of the Wielki Łęg Obrzański [Great Obra Floodmeadows]. Multifaceted natural and habitat analyses were conducted on over 1800 relevés prepared in the vegetation seasons of 2005–2009 according to Braun-Blanquet. On their basis the phytosociological and floristic structure was analysed and habitat conditions were determined by phytoindication. Moreover, laboratory methods were applied in soil analyses to determine contents of basic macro- and microelements and groundwater table levels were recorded. Results referred to the documentation and archive literature made it possible to determine causes of transformations in plant communities in that area and outline probable directions in which succession was progressing. A lack of regular land use patterns is seen as the primary cause for the transformation in the flora of the Wielki Łęg Obrzański, particularly in the last 20 years. A considerable limitation of land use in certain sections of this area has led to the initiation of dominance of nitrophilic species such as Urtica dioica, Cirsium arvense, Potentilla anserina or Galium mollugo, while in the thinned sward it led to the development of grass species with very limited economic importance. Another equally important factor affecting the structure of vegetation cover is connected with air and water relations in soils, determined by the drainage system operating there for the last 200 years and by precipitation.

6

Zróżnicowanie skłądu florystycznego, plonowania i wartości paszowej użytków zielonych okolic Konina

63%

Kryszak A., Grynia M.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

2001

|

tom 479

7

Roznorodnosc florystyczna zbiorowisk a udzial roslin motylkowatych

63%

Grynia M., Kryszak A.

Biuletyn Naukowy. Uniwersytet Warmińsko-Mazurski w Olsztynie

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1998

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nr 01

99-106

8

Unfavourable changes of meadow communities in the area neighbouring Konin aluminium smelter

63%

Grynia M., Kryszak A.

Zeszyty Problemowe Postępów Nauk Rolniczych

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1994

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tom 413

123-126

In years 1969 and 1980-91 geobotanical research was carried out on the area of 200 ha of permanent grasslands situated in the Gopło-Warta Canal depression in the zone of the strongest contamination with industrial gases from the neighbouring aluminium works. The total of 150 phytosociological records were taken with the use of the Braun-Blanquet method. Furthemore, chemical soil and plant analyses as well as the examination of the site were conducted. Meadow plants showed varying concentrations of fluorine ranging from 0.65 to 85.2 mg %, and 95 % of the plant samples were toxic to farm animals. The examined meadows are situated primarily on semihydrogenic and podzolic gley soils. However, there are also places where bog and black soils occur. Soils were mainly acid and slightly acid. Chemical analysis showed that the soils are poor in potassium and phosphorus. During the period of studies unfavourable changes occured in the physico-chemical properties of the site: both soil moisture content and density increased while its oxygenation and porosity declined. Soil reaction was also found to have increased. Economically useful plant communities which used to occupy 37.5 % of the area were reduced considerably and now occupy only 12 % (Arrhenatheretum elatioris and Lolio-Cynosuretum). They were replaced by low value plant communities (Deschampsia caespitosa, Carex fusca, Carex gracilis, Molinia coerulea) which currently occupy 88 % of the area. Furthermore, considerable amounts of meadow weeds and plant semiparasites were also found in the examined meadow swards. The quantities of fluorine in plants showed a declining tendency which may have been due to a decrease in the discharge of fluorine into the atmosphere observed recently. Thus, it can be said that fluorine causes injury to plants and leads to the replacement of more valuable species by species economically less valuable. Moreover, these unfavourable changes are further reinforced by negative site changes caused by incorrect management practices quite common on these contaminated areas.

9

Uzytkowanie a walory przyrodnicze zbiorowisk lakowych

63%

Kryszak J., Kryszak A.

Fragmenta Agronomica

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2007

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tom 24

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nr 3

258-267

10

Zróżnicowanie florystyczne wybranych zbiorowisk łąkowo-pastwiskowych w Wielkopolsce oraz ich ocena użytkowa

63%

Kryszak A., Grynia M.

Pamiętnik Puławski

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2001

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tom 125 Zeszyt Specjalny

11

Wplyw nawozenia makro- i mikroelementami na krzewienie i plonowanie Festuca pratensis

63%

Grynia M., Kryszak A.

Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin

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1994

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tom 190

119-126

12

Skala ekologiczna wystepowania i udzialu roslin motylkowatych w zbiorowiskach lakowo-pastwiskowych w wybranych dolinach rzek Wielkopolski

63%

Grynia M., Kryszak A.

Prace Komisji Nauk Rolniczych i Komisji Nauk Leśnych. Poznańskie Towarzystwo Przyjaciół Nauk

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1997

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tom 83

39-47

13

Charakterystyka geobotaniczna lak w obnizeniu Rowu Polskiego

63%

Grynia M., Kryszak A.

Prace Komisji Nauk Rolniczych i Komisji Nauk Leśnych. Poznańskie Towarzystwo Przyjaciół Nauk

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1994

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tom 77

43-48

14

Stan aktualny flory lak Arrhenatheretum elatioris w wybranych dolinach Wielkopolski

63%

Grynia M., Kryszak A.

Materiały Seminaryjne. Instytut Melioracji Użytków Zielonych

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1997

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tom 38

125-130

15

Aktualny stan zbiorowisk lakowo-pastwiskowych w zasiegu planowanej odkrywki Drzewce

63%

Grynia M., Kryszak A.

Roczniki Akademii Rolniczej w Poznaniu. Rolnictwo

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2000

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nr 56

139-152

16

Chwasty na pastwiskach

63%

Grynia M., Kryszak A.

Agrochemia

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1999

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nr 12

16-18

17

Floristic diversity of extensively used fresh meadows (6510) in the Wielki Leg Obrzanski complex

63%

Klarzynska A. A., Kryszak A.

Acta Agrobotanica

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2015

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tom 68

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nr 2

One of the habitat types protected within the framework of the NATURA 2000 network due to the presence of species of European importance are fresh meadows from the Arrhenatherion alliance. The maintenance of their characteristic floristic composition depends on habitat conditions and extensive use, while any changes in this respect trigger succession transformations potentially threatening their nature value. The aim of the study was to conduct nature and habitat valuation of one of the largest meadow complexes in the Wielkopolska region, i.e. Wielki Łęg Obrzański, which will make it possible to describe the preservation status of fresh meadows and their habitats. Based on multifaceted analyses of 535 relevés made using the Braun-Blanquet method in the years 2006–2012 and representing the Arrhenatherion alliance, the phytosociological and botanical structure as well as constancy of species in individual variants (floristic types) were determined. Moreover, their habitat conditions were defined, i.e. soil moisture and nitrogen content using the index method according to Ellenberg, while laboratory methods were used to determine the content of organic matter, soil moisture as well as the contents of potassium, magnesium and phosphorus in soil. Floristic composition of fresh meadows from the Arrhenatherion alliance differs due to high heterogeneity of habitat. The presence of fresh meadow phytocenoses both on dried organic soils (the driest forms of flood meadows) and on mineral soils (oak-hornbeam forests) contributes to differences in the floristic composition both in ryegrass meadows and grass–fescue meadows, mainly due to soil moisture and fertility as well as sward use type. This constituted the basis for the identification of lower syntaxonomic units in the internal structure of the plant associations. Five variants were distinguished in Arrhenatheretum elatioris, while the community of Poa pratensis–Festuca rubra was developed in as many as 8 variants.

18

Zmiany skladu florystycznego lak zalewanych wodami powodziowymi w Dolinie Baryczy w aspekcie ich regeneracji

63%

Grynia M., Kryszak A.

Materiały Seminaryjne. Instytut Melioracji Użytków Zielonych

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2000

|

tom 45

51-58

19

Zmieniajaca sie rola pastwiska w zaleznosci od skladu florystycznego i uzytkowania

63%

Kryszak A., Grynia M.

Zeszyty Naukowe Akademii Rolniczej w Krakowie. Sesja Naukowa

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2000

|

tom 73

205-210

20

Response of meadow plants to physico-chemical changes of the soil as the result of compaction during harvest technology

63%

Grynia M., Kryszak A.

Zeszyty Problemowe Postępów Nauk Rolniczych

|

1994

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tom 413

119-122

Studies were conducted in years 1986-92 in RZD Brody and state farm Sobota, Poznań voivodeship, as well as on meadows of Zielona Góra voivodeship. Three different harvest technologies were applied in the investigations. Floristic composition of the meadow sward was determined with the help of the Levy and Coc’s method. Moreover, sward changes as well as turf and plant damages caused by the application of different harvest technologies were ascertained. A can auger of 397.93 cm³ capacity was used to determine root weight. Chemical analysis of the sward and dominants was carried out with the aim of determining the content of basic macro- (N, P, K, Ca, Na, Mg) and micronutrients (Cu, Mn, Zn, Fe) as well as organic compounds (crude protein, water soluble sugars, crude fibre, carotene, crude ash). Site investigations comprised the soil, level of ground water, climatic factors as well as the number of meadow compactions by machines. The studies revealed significant floristic differences in the result of physico-chemical changes of the soil caused by compaction during harvest technologies. Negative differences are bigger (100 %) on organic soils than on mineral soils (50 %), and floristic changes depend, to a large extent, on the increased number of technological operations causing a higher degree of compaction and reduced soil porosity and fertility.

Ograniczanie wyników

Trudności z fitosocjologiczną klasyfikacją zbiorowisk łąkowych

Roznorodnosc florystyczna zespolow lak i pastwisk klasy Molinio-Arrhenatheretea R. Tx. 1937 w Wielkopolsce w aspekcie ich wartosci gospodarczej

Ziola na lakach i pastwiskach

Synantropizacja wybranych zbiorowisk lakowych

Causes and directions of changes of meadow-pasture vegetations of the Wielki Leg Obrzanski (WLO)

Zróżnicowanie skłądu florystycznego, plonowania i wartości paszowej użytków zielonych okolic Konina

Roznorodnosc florystyczna zbiorowisk a udzial roslin motylkowatych

Unfavourable changes of meadow communities in the area neighbouring Konin aluminium smelter

Uzytkowanie a walory przyrodnicze zbiorowisk lakowych

Zróżnicowanie florystyczne wybranych zbiorowisk łąkowo-pastwiskowych w Wielkopolsce oraz ich ocena użytkowa

Wplyw nawozenia makro- i mikroelementami na krzewienie i plonowanie Festuca pratensis

Skala ekologiczna wystepowania i udzialu roslin motylkowatych w zbiorowiskach lakowo-pastwiskowych w wybranych dolinach rzek Wielkopolski

Charakterystyka geobotaniczna lak w obnizeniu Rowu Polskiego

Stan aktualny flory lak Arrhenatheretum elatioris w wybranych dolinach Wielkopolski

Aktualny stan zbiorowisk lakowo-pastwiskowych w zasiegu planowanej odkrywki Drzewce

Chwasty na pastwiskach

Floristic diversity of extensively used fresh meadows (6510) in the Wielki Leg Obrzanski complex

Zmiany skladu florystycznego lak zalewanych wodami powodziowymi w Dolinie Baryczy w aspekcie ich regeneracji

Zmieniajaca sie rola pastwiska w zaleznosci od skladu florystycznego i uzytkowania

Response of meadow plants to physico-chemical changes of the soil as the result of compaction during harvest technology