scholarly journals Assessment of Natural and Forest Reclaimed Forage Lands in Semi-Desert Conditions in Southern Russia

2021 ◽  
pp. 37-48
Author(s):  
Ludmila P. Rybashlykova ◽  
◽  
Vladimir V. Lepesko ◽  
Keyword(s):  
Vegetation Cover ◽  
Field Experiments ◽  
Arid Zone ◽  
The Caspian Sea ◽  
Shrub Layer ◽  
Forest Reclamation ◽  
Southern Russia ◽  
Deep Plowing ◽  
Long Term Impact ◽  
Arrangement Increasing

Haphazard use of pastures has become one of the factors of disturbance of their natural vegetation. Therefore, forest reclamation works were carried out and significant areas of strip plantations of shrubs were created in the Caspian Sea region in the mid-20th century. In the arid zone of Russia, one of the most important tasks in the field of scientific provision of protective afforestation is the improvement of methods and techniques of arrangement, increasing longevity and environmental, agricultural, and utilitarian efficiency of plantations. This study aims to determine the long-term impact of afforestation on the functioning of pasture ecosystems. The influence of tree and shrub layer on biodiversity and productivity of vegetation cover of pastures was also studied. The research objects are plantations growing on the reclaimed pastures. The research is based on the materials of biomonitoring and field experiments using standard methods of forest inventory and geobotanical survey. Rectangular-shaped test plots of 0.25–0.30 ha were laid out for the study of forest plots. Test plots were used for a detailed description of the location, soil composition, time, method, and technology of plantation development, as well as a comprehensive assessment of the growth and longevity of tree and shrub crops. Data from key plots were used to study the successional processes of vegetation cover. The research results have shown that deep plowing preparation of soil to obtain high results in rooting, preservation, and growth of shrub species has an advantage over other soil preparation technologies in the semi-desert zone. It was found that the shrub layer up to 45 years old retains its productive and generative abilities. Pasture protection belts from Haloxylon aphyllum and reclamation and fodder plantations from Krascheninnikovia ceratoides and Calligonum aphyllum have a high cenosis potential and stability. In this case study, in semi-arid regions, afforestation with shrubs is the best way to improve and restore pastures. For citation: Rybashlykova L.P., Lepesko V.V. Assessment of Natural and Forest Reclaimed Forage Lands in Semi-Desert Conditions in Southern Russia. Lesnoy Zhurnal [Russian Forestry Journal], 2021, no. 3, pp. 37–48. DOI: 10.37482/0536-1036-2021-3-37-48

Challenges to Frontier Allegories: the Caspian Sea Region in Southern Russia

Cultura ◽  
2015 ◽  
Vol 12 (1) ◽  
pp. 159-172
Author(s):  
Liudmila Baeva ◽  
Anna Romanova
Keyword(s):  
Caspian Sea ◽  
The Caspian Sea ◽  
Southern Russia

Humid to Arid to Subhumid Vegetation Shift on Pilliga Sandstone, Ulungra Springs, New South Wales

1989 ◽  
Vol 32 (2) ◽  
pp. 182-192 ◽  
Author(s):  
J.R. Dodson ◽  
R.V.S. Wright
Keyword(s):  
Vegetation Cover ◽  
Vegetation History ◽  
Arid Zone ◽  
New South ◽  
New South Wales ◽  
Vegetation Shift ◽  
South Wales ◽  
Shrub Steppe ◽  
Pollen Rain ◽  
Open Forests

AbstractThe Pilliga Sandstone region of the northwest slope of New South Wales has a natural vegetation cover of sclerophyllous relatively closed to open forests with a largely heathy understorey, and a warm, subhumid and continental climate. Pollen analysis of spring-fed deposits gives a vegetation history extending from at least 30,000 yr B.P. to the late Holocene. Tree pollen became scarce after about 25,000 yr B.P. and an assemblage dominated by Chenopodiaceae, Liguliflorae, Tubuliflorae, and probably Poaceae developed. No similar assemblage is known from present pollen rain studies carried out in Australia. However, it clearly represents a treeless open shrub-steppe formation and therefore an arid or semiarid environment. The site thus provides evidence of an eastward late Pleistocene extension of the arid zone in Australia, and is the first full-glacial vegetation record between 20° and 35° latitude in Australia. The present vegetation cover did not become reestablished until the beginning of the Holocene, which raises questions about the form in which Pilliga Sandstone vegetation survived full-glacial conditions.

Irrigated Forage Production under Extreme Arid Zone Conditions in Saudi Arabia

1976 ◽  
Vol 12 (2) ◽  
pp. 177-187 ◽  
Author(s):  
J. Farnworth
Keyword(s):  
Saudi Arabia ◽  
Nutritional Value ◽  
Management Practices ◽  
Field Experiments ◽  
Arid Zone ◽  
Perennial Species ◽  
Forage Production ◽  
North Wales ◽  
High Yields ◽  
The University

SUMMARYSince 1970 the University College of North Wales, in co-operation with the Saudi Arabian Ministry of Agriculture and Water, has been investigating the potential for forage production in all-year-round irrigated conditions in Saudi Arabia, and the principal results of the first 4 years of field experiments are discussed. Both temperate and tropical annual forages as well as perennial species were tested, and generally produced high yields with high nutritional value. Fertilizer responses and different management practices were evaluated and their relevance to the development of systems of forage production are discussed.

scholarly journals Impact of Intercropping Sorghum and Okra on the Incidence of Flea Beetles of Okra Podagrica spp in Dalwa, Maiduguri Semi-Arid Zone of Nigeria

2014 ◽  
Vol 14 ◽  
pp. 51-58
Author(s):  
M.M. Degri ◽  
I.B. Richard
Keyword(s):  
Field Experiments ◽  
Insect Pests ◽  
Arid Zone ◽  
Flea Beetle ◽  
Fruit Weight ◽  
Fruit Yield ◽  
Leaf Damage ◽  
The Impact ◽  
Fruit Formation ◽  
Semi Arid

Field experiments were conducted at faculty of Agriculture teaching and research farm, university of Maiduguri in 2010 and 2011 rainy seasons. The aim was to investigate the impact of intercropping sorghum with okra on the incidence of flea beetle of okra (Podagrica spp) in the semi-Arid zone of Nigeria. The results showed that sole crop okra suffered flea beetle attack which affected its growth, fruit formation, fruit weights and fruit yield. Intercropping okra with sorghum significantly reduced the flea beetle populations, leaf damage caused by Podagrica spp (Coleoptera: Chrysomelidae). While increasing number of leaves for photosynthetic activities, plant height, fruit formation, fresh fruit weight and total fruit yield. The study concluded that okra intercropping at 1:1, 1:2 and 2:2 are the most efficient and productive intercrop systems in flea beetle management. Okra intercropping with cereal sorghum was found to be good for sustainable agriculture and organic farming in Nigeria due to its numerous advantages, particularly with respect to insect pests’ control.

Zooplankton of saline rivers in the arid zone of southern Russia (Elton Lake basin)

2013 ◽  
Vol 92 (8) ◽  
pp. 882-892
Author(s):  
V. I. Lazareva ◽  
V. A. Gusakov ◽  
T. D. Zinchenko ◽  
L. V. Golovatyuk
Keyword(s):  
Arid Zone ◽  
Lake Basin ◽  
Saline Rivers ◽  
Southern Russia

scholarly journals Quantitative Variations of ulva intestinalis Biochemical Composition Variation in the Conditions of Salty and Saltish Small Rivers of the Southern Russia

2011 ◽  
pp. 46-57
Author(s):  
Keyword(s):  
Fatty Acids ◽  
Arid Zone ◽  
Abiotic Factors ◽  
Small Rivers ◽  
Main Hypothesis ◽  
Composition Variation ◽  
Wide Range ◽  
Ulva Intestinalis ◽  
Southern Russia

Lipids and fatty acids content and composition variability of the samples of Ulva intestinalis algae collected from the Caspian Plain arid zone small rivers characterized by a wide range of abiotic factors (level of mineralization, temperature regime, saturation with oxygen, acidity of environment) variability have been studied. The role of lipids composition variability as a basis for the species ecological plasticity is being checked as a main hypothesis.

scholarly journals Influence of main tillage methods on barley yield in the Lower Volga region

2020 ◽  
pp. 43-47
Author(s):  
Dmitriy Pavlovich Polyakov ◽  
Andrey Vladimirovich Tyutyuma
Keyword(s):  
Field Experiments ◽  
Arid Zone ◽  
Spring Barley ◽  
Arable Land ◽  
Resource Saving ◽  
Forage Crops ◽  
Climate Conditions ◽  
The North ◽  
Harsh Climate ◽  
The Impact

Light-chestnut soils of the arid zone of the North of the Astrakhan region, even if all the standards of agricultural engineering are observed, are characterized by unfavorable agrochemical and water-physical properties for most crops. To successfully solve the problems associated with increasing adaptation of zonal agriculture to harsh climate conditions, it is necessary to search for new resource-saving technologies. The purpose of the work is to identify the impact of resource-saving methods of basic soil cultivation on the yield of spring barley in the semi-desert conditions of the North of the Astrakhan region. The organization of field experiments, observations and laboratory analyses were carried out according to the method of conducting field experiments Dospekhov B. A. and Guidelines for conducting field experiments with forage crops (research Institute of feed). The results of the conducted field experiments and laboratory studies give reason to speak about the feasibility of using a resource-saving soil-cultivating organ ROPA in the zone of unstable moisture in the North of the Astrakhan region. Loosening this unit contributes to an increase of 25% of the total spring stock of soil moisture. The introduction of this deep tillage (H=0.40-0.45 m) and tools for its implementation (ROPA) allows you to get in the rain-fed conditions of the arid zone of the North of the Astrakhan region from one hectare of arable land to 1.24 tons of barley Vakula and 1.30 tons of barley Ratnik.

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