Znaleziono wyników: 3

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: environmental function

Sortuj według:

Ogranicz wyniki do:

Production and environmental functions of soils as a basis of the sustainable development

100%

Kozak J., Santrucek J., Nemecek J., Svobodova M.

Acta Agraria et Silvestria. Series Agraria

2003

tom 40

nr Sek.roln.

Significant attention was paid in all developed countries to the agriculture until the seventies of the last century. It was due to the food deficiency in the post-war period. The period of the intensive agriculture production in the former Czechoslovakia lasted longer, due to the necessity of the high self-sufficiency in food feed and raw materials, produced in the agriculture in the closed system of the socialistic economy. The care for agriculture and soils caused in all countries the boom — golden era of soil science. Not only the basic research aimed at the problems of soil productivity, but especially the soil survey and interpretation of soil maps for agricultural practice was in progress. More sophisticated methods in soil mapping were reflected in the assessment of the soil cover heterogeneity, which is the basis of the regional application of the use and cultivation of agricultural lands. The mentioned concepts have not been developed in the survey of forest soils and natural grasslands because the attention is focused mort the characterization of the soil condition of the forest types or phytocenoses then of soil mapping. This causes some inconsistence in the classification of soils with different uses. In this way the conditions for the unification of the classification of both agricultural and forest soil and the CIS have been created. After the boom of the support of agriculture and pedology, aimed at the rising of the production and soil productivity passed, the production has been champed and pedology has been oriented especially on environmental functions of soils.

Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik

Evaluation methods of agricultural potential in rural areas including environmental function

84%

Vachalova R., Matejkova S., Vachal J., Partlova P., Dumbrovsky M., Jurik L.

Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

2011

tom 43

nr 1

The study focuses on the environmental evaluation of land in the territory of interest by means of assessing the non-production functions. This topic is currently becoming one of the crucial moments in agriculture, water management as well as nature and landscape conservation. The soil represents an important component of the environment and influences both the quality and the quantity of produced foodstuffs due to the fact that being an abiotic factor, the soil is a part of many different natural and artificial ecosystems, affecting thus the hydrosphere, atmosphere and biosphere. The soil provides nutrients for plant growth, necessary for animal as well as human nutrition. It plays an important part in recycling and detoxification of organic materials and in the cycles of many elements. The proposed solution consists in the evaluation of the non-production soil functions in a particular territory according to chosen, usually unchangeable, soil properties on the basis of the proposed method of rating. The method is based on creating evaluation classes comprising the individual categories of soil properties. The rating expressing particular categories indicates the range of the non-production functions within the soil-ecological units in the territory of interest. The research was carried out in a territory only moderately impacted by human industrial activities. The results of the evaluation of chosen soil functions can be used in the studies focused on landscape and soil protection or in the proposals of environment-friendly management models in accordance with the rules of agricultural policy included in appropriate regulations aimed at the protection of varied environmental components.

Current state of Picea abies stands in the Ukrainian Carpathians

67%

Guz M.

Dendrobiology

2009

tom 61 Supplement

The paper provides a detailed characterisation of Norway spruce stands in the Ukrainian Carpathians. The majority of natural spruce stands in Ukraine occur in Polesie, while artificial regeneration is spread all over the country. The most densely forested part of Ukraine is the Carpathian region with 41.1% of forest-covered area (2.1 million ha). Spruce-dominated stands occupy about 700 thousand hectares (30%) of the forested area of the state forest fund in the Ukrainian Carpathians, and another 10% of the mixed forests contain 10 to 30% of spruce. Besides pure spruce stands, there are beech-spruce, beech-fir-spruce, and cedar-spruce stands. The most productive stands (750-900m3 stem wood per ha) grow in the middle and lower parts of slopes at 1100-1200 m a.s.l. which have favourable soil and climate conditions. Since the second half of the 20th century, spruce stands in the substantial part of the Ukrainian Carpathians have declined under the influence of complex anthropogenic and natural factors. Although the present condition of most spruce forests in this region remains satisfactory, the degradation processes and the ban imposed in 2006 on planting spruce on non-spruce forest sites (in state forests) may decrease their area in the longer term.

Ograniczanie wyników

1 Acta Agraria et Silvestria. Series Agraria

1 Annals of Warsaw University of Life Sciences - SGGW. Land Reclamation

1 Dendrobiology

1 Dumbrovsky M.

1 Guz M.

1 Jurik L.

1 Kozak J.

1 Matejkova S.

1 Nemecek J.

1 Partlova P.

1 Santrucek J.

1 Svobodova M.

1 Vachal J.

1 Vachalova R.

1 2011

1 2009

1 2003

Wyniki wyszukiwania

Production and environmental functions of soils as a basis of the sustainable development

Evaluation methods of agricultural potential in rural areas including environmental function

Current state of Picea abies stands in the Ukrainian Carpathians