Recovery of natural vegetation and ecological functions of pasture ecosystems in arid steppes of the Cisural region

Rusanov, A. M.

doi:10.1134/s1067413614040109

Cited by 7 publications

(2 citation statements)

References 1 publication

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“…This anatomical feature of Poaceae specifies their high demand for bulk density of the top soil as an important factor of their successful growth. According to previous investigations, the upper limit of the optimal bulk density of the root layer (0-20 cm) of chernozems for these grasses is 1.15 g/cm 3 [13][14][15]. According to other data, the maximum total length of the roots of these grasses is observed upon the soil bulk density of 1.20 g/cm 3 [20].…”

Section: Resultsmentioning

confidence: 96%

Current stage of the restoration of Chernozems in rangeland ecosystems of the steppe zone

Rusanov

2015

Eurasian Soil Sc.

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The results of two rounds of soil and geobotanic surveys of rangeland ecosystems in the steppe zone are presented. The same sites with southern chernozems (Calcic Chernozems) under steppe plant com munities at different stages of pasture degradation were investigated at the end of the 1980s, when they suf fered maximum anthropogenic loads, and in 2011-2013, after a long period of relative rest. In the 1980s, deg radation of soil physical properties in rangeland ecosystems under the impact of long term unsustainable management was noted. At the same time, it was found that the major qualitative and quantitative properties of humus in the chernozems were preserved independently from the level of pasture degradation. The follow ing period of moderate grazing pressure had a favorable effect on the soil properties. Owing to the good char acteristics of the soil humus, the restoration of the physical properties of chernozems-including their struc tural state, water permeability, and bulk density-took place in a relatively short period. It is argued that the soil bulk density is a natural regulator of the species composition of steppe vegetation, because true grasses (Poaceae)-typical representatives of the steppe flora-have a fibrous root system requiring the soils with low density values. The improvement of the properties of chernozems is related to the development of secondary ecosystems with a higher portion of grasses in place of damaged rangelands and to the increase in the area of nominal virgin phytocenoses.

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Section: Resultsmentioning

confidence: 96%

Current stage of the restoration of Chernozems in rangeland ecosystems of the steppe zone

Rusanov

2015

Eurasian Soil Sc.

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“…Grassland has an important place in our landscape and fulfills many roles. Grasslands have been shown to play an important role as a natural barrier against desertification through its root structure and soil cover [ 2 ]. Controlling its biomass through grazing allows for fire prevention and management by limiting the amount of fuel present [ 3 ].…”

Section: Introductionmentioning

confidence: 99%

Prediction of Indirect Indicators of a Grass-Based Diet by Milk Fourier Transform Mid-Infrared Spectroscopy to Assess the Feeding Typologies of Dairy Farms

Soyeurt

Gerards

Nickmilder

et al. 2022

Animals

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This research aims to develop a predictive model to discriminate milk produced from a cattle diet either based on grass or not using milk mid-infrared spectrometry and the month of testing (an indirect indicator of the feeding ration). The dataset contained 3,377,715 spectra collected between 2011 and 2021 from 2449 farms and 3 grazing traits defined following the month of testing. Records from 30% of the randomly selected farms were kept in the calibration set, and the remaining records were used to validate the models. Around 90% of the records were correctly discriminated. This accuracy is very good, as some records could be erroneously assigned. The probability of belonging to the GRASS modality allowed confirmation of the model’s ability to detect the transition period even if the model was not trained on this data. Indeed, the probability increased from the spring to the summer and then decreased. The discrimination was mainly explained by the changes in the milk fat, mineral, and protein compositions. A hierarchical clustering from the averaged probability per farm and year highlighted 12 groups illustrating different management practices. The probability of belonging to the GRASS class could be used in a tool counting the number of grazing days.

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Effect of natural conditions and mining activities on vegetation variations in arid and semiarid mining regions

Liu

Qiao

et al. 2019

Ecological Indicators

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Recovery of natural vegetation and ecological functions of pasture ecosystems in arid steppes of the Cisural region

Cited by 7 publications

References 1 publication

Current stage of the restoration of Chernozems in rangeland ecosystems of the steppe zone

Current stage of the restoration of Chernozems in rangeland ecosystems of the steppe zone

Prediction of Indirect Indicators of a Grass-Based Diet by Milk Fourier Transform Mid-Infrared Spectroscopy to Assess the Feeding Typologies of Dairy Farms

Effect of natural conditions and mining activities on vegetation variations in arid and semiarid mining regions

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