Résultats de la recherche
Showing items 1 through 9 of 58.
-
Library Resource
Documents et rapports de conférence
Fédération de Russie, Lettonie
The aim of this research was to study the effect of the stand composition on the density of pine and spruce wood growing on former arable lands. Sample areas are located in mixed mature pine- and spruce-prevailing stands in Leningrad region, Russia. For the reliable determination of the basic density of spruce and pine wood, selection of model trees was carried out and cores were taken. Based on the data obtained from stems of 36 model trees from 3 sample plots, conversion equations were calculated to determine the basic density of wood.
-
Library Resource
Documents et rapports de conférence
Fédération de Russie, Lettonie
The objective of this study is to assess the qualitative and quantitative characteristics of pine (Pinus sylvestris) and spruce (Picea abies) stands growing on lands that were previously in agricultural use in the Leningrad region. Sample areas of mature mixed pine-and-spruce prevailing stands were studied. The taxation has revealed that the average height and diameter of the stands under study are greater than those in mixed modal stands of these species on forest lands. The analysis of the results of the study was performed by dispersion, correlation and ranking methods.
-
Library Resource
The scientific and technical crop production market (STCPM) is a system of organizational, economic and legal relations between the participants of the selection and seed-growing process. Selection achievements are the main commodity in it. The purpose of the study was to develop proposals for improving the organizational and economic mechanism of the STCPM and its constituents.
-
Library Resource
Documents et rapports de conférence
The article presents an analysis of the existing situation of forests of the Republic of Lithuania. The situation is analysed in ten counties of the country. In the Republic of Lithuania, forests occupied 2,178,958.04 ha, country’s forest coverage – 33.38% in 2017. The highest forest coverage was established in Alytus (48.80%) and Vilnius (43.47%) counties. Only in three counties of Lithuania (Panevėžys, Telšiai and Utena) the prevailing type of ownership is private forests.
-
Library Resource
Documents et rapports de conférence
Lettonie, Lituanie, Europe
The territorial planning and the management of urban surfaces force the decrease of green spaces in urban landscapes. As the urbanization process during past decades of the last century was quite intensive not only in Europe but also in Lithuania, findings describing changes of forest cover as well as spatial structure of the forest land are requested.
-
Library Resource
Significant areas of agricultural lands of Primorsky Territory (664.2 thousand hectares) are subjected to various erosion processes, therefore they need to be conservated by afforestation. The purpose of the study is to develop scientific and practical recommendations on the creation and use of different types of forest plantations on agricultural lands.
-
Library Resource
The article considers the reform of the economy of Uzbekistan and the formation of market–based management mechanisms. Also, it is covering various spheres of life and the activities of society. In addition to these processes, land relations are also involved in these processes, which occupy an important place in any economic system, land resources, as natural potential, are the necessary natural basis for any material production, and in agriculture and forestry — the main means of production.
-
Library Resource
The aim of the research was to study the effect of the surface runoff of urbanized areas on the chemical composition of the collector-waste waters of the Semikarakorsk branch of the federal state budgetary institution "Rostovmeliovodkhoz". The drainage systems development on irrigated lands not only played a positive role, having created favorable conditions for increasing soil productivity, but also caused the issues with incoming collector-effluent waters, as they are one of the sources of salt and pollution to rivers and inlets.
-
Library Resource
Documents et rapports de conférence
Fédération de Russie, Lettonie
Land resources are the basis of economic and territorial development of any country. Land reform in the Russian Federation started in 1990−1991, its goal was to solve a wide range of issues in the field of agriculture, the formation and development of local government, housing construction, and ecology. At the same time, social and economic transformations were carried out, private ownership of land and payment for land use was introduced, and the development of the land market was stimulated.
-
Library Resource
В статье проведен анализ динамики почвенного плодородия по результатам мониторинга состояния земель сельскохозяйственного назначения Северо-западной и Восточной природно-сельскохозяйственных зон Ростовской области, который показал снижение этого показателя за 30 лет на величину более 16%. Рассмотрены основные факторы, влияющие на процесс дегумификации, к которым относятся водная эрозия, дефляция, а также нерациональное использование земель сельскохозяйственного назначения.
Rechercher dans la bibliothèque foncière
Grâce à notre moteur de recherche robuste, vous pouvez rechercher n'importe quel document parmi les plus de 64 800 ressources hautement conservées dans la bibliothèque du foncier.
Si vous souhaitez avoir un aperçu de ce qui est possible, n'hésitez pas à consulter le guide de recherche.
