scholarly journals Impact of energy crops on the quality of ecosystem services of Luvic Chernic Phaozem

2021 ◽  
pp. 64-71
Author(s):  
Ya. N. Vodiak ◽  
Keyword(s):  
Ecosystem Services ◽  
Organic Carbon ◽  
Carbon Content ◽  
Root Zone ◽  
Energy Crops ◽  
Energy Crop ◽  
Stem Length ◽  
Organic Carbon Content ◽  
Miscanthus Giganteus

The article presents the results of research on the impact of energy crops on the quality of such ecosystem services of Luvic Chernic Phaozem as providing, regulating and supporting. The observation was conducted during 2019-2020 in the SE "Experimental Farm "Grakivske", Novyi Korotych village in Kharkiv region of Ukraine. Energy perennial crops grown in the experiment: Miscanthus giganteus (plantings 2016 (I) and 2019 (II) years); Sida hermophrodita (2018); Silphium perfoliatum L. (2018). Control variables: determination of soil organic carbon content; pH level; number of microarthropods in the soil; plant stem length. An increase in organic carbon content was found in the upper soil layers beneath energy crop plants, especially in the root zone of Sylphium. Due to the root excretions of the crops a slight decrease in pH is also observed in all the variants compared to the control. A positive effect of the plants is also observed on the numbers of soil invertebrates – microarthropods, namely columbines and oribatids. The increase in their numbers indicates the formation of favorable conditions for these living creatures, in the root zone of all energy crops. For example, in May 2019 compared to the control (2706 ex. / m2) under four-year-old Miscanthus almost tripled (6126 ex. / m2), under annual Miscanthus – 4860 ex. / m2, under Sylphium – 5040 ex. / m2, and under Sida – 4320 ex. / m2. Positive changes in soil structure under the influence of Miscanthus giganteus cultivation, especially in the upper layer, were also noted. The coefficient of structure on the variants increased from 1.39 on the control, to 2.26 in layer 0-20 under Miscanthus. Measurements of stem height, showed that all of the selected crops were able to function normally despite reduced rainfall and increased temperatures in recent years. The plants are not depressed under drought conditions and only increase their biomass over time. Thus, the results indicate an overall improvement in the quality of soil ecosystem services in energy crop plantations. In particular, provisioning services – obtaining energy raw materials; regulating services – improving soil quality; and ecosystem services – depositing organic carbon, are improved.

scholarly journals Analysis of Selected Environmental Indicators in the Cultivation System of Energy Crops

2017 ◽  
Vol 14 (2) ◽  
pp. 64-69
Author(s):  
Božena Š Šoltysová ◽  
Martin Danilovič
Keyword(s):  
Organic Carbon ◽  
Nitrogen Fertilization ◽  
Energy Crops ◽  
Environmental Indicators ◽  
Soil Reaction ◽  
Available Phosphorus ◽  
Organic Carbon Content ◽  
Chemical Parameters ◽  
Miscanthus Giganteus ◽  
Phosphorus And Potassium

Abstract The changes of selected chemical parameters were observed in Gleyic Fluvisols. The field experiment was established as a twofactor experiment with four energy crops (Arundo donax L., Miscanthus × giganteus, Elymus elongatus Gaertner, Sida hermafrodita) and two variants of fertilization (nitrogen fertilization in rate 60 kg ha-1, without nitrogen fertilization). Soil samples were taken from the depth of 0 to 0.3 m at the beginning of the experiment in the autumn 2012 and at the end of reference period in the autumn 2015. Land management conversion from market crops to perennial energy crops cultivation has influenced changes of selected soil chemical parameters. The contents of soil organic carbon were affected by cultivated energy crops differently. It was found out that Arundo increased the organic carbon content and Miscanthus, Elymus and Sida decreased its content. At the same time, the same impact of the crops on content of available phosphorus and potassium and soil reaction was found. It was recorded that each cultivated crop decreased the soil reaction and available phosphorus content and increased the content of available potassium.

scholarly journals Soil organic carbon in a toposequence in the semiarid of Paraíba, Brazil

2020 ◽  
Vol 9 (5) ◽  
pp. e164953365
Author(s):  
Cheila Deisy Ferreira ◽  
Francisco Tibério de Alencar Moreira ◽  
Patrícia Carneiro Souto ◽  
Lyanne dos Santos Alencar ◽  
César Henrique Alves Borges
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Content ◽  
Soil Analysis ◽  
Superficial Layer ◽  
The Other ◽  
Organic Carbon Content ◽  
Physical And Chemical ◽  
Upper Third

Organic carbon is a sensible indicator to evaluate the environmental quality of the soil. The objective of this study was to evaluate the organic carbon content of the soil in a toposequence in Serra do Teixeira, municipality of Teixeira, PB. Soil samples were collected in the upper third (UT), upper middle third (UMT), lower middle third (LMT) and lower third (LT) on three depths (0-5, 5-10 and 10-20 cm), with five replicates for each depth, resulting in a total of 60 samples. The organic carbon was evaluated using the methodology of Walkey-Black. Physical and chemical soil analysis were also carried out. The highest mean of carbon content was found in the first 5 cm (19.83 g dm-3), significantly differing from the other depths. It was also observed that the mean content of soil organic carbon on LMT was significantly higher than the other thirds, with 19.39 g dm-3. It is concluded that the highest contents of organic carbon are found on the most superficial layer of the soil. The organic carbon content variations found along the toposequence indicates influence of the relief and the anthropic action.

scholarly journals Effects of adding different proportions of soft rock on the dynamic change of the quality of aeolian sandy soil

2021 ◽  
pp. 837-845
Author(s):  
Tingting Cao ◽  
Zhen Guo ◽  
Juan Li ◽  
Haiou Zhang ◽  
Hang Zhou ◽  
...  
Keyword(s):  
Microbial Community ◽  
Organic Carbon ◽  
Carbon Content ◽  
Nitrogen Content ◽  
Root System ◽  
Soft Rock ◽  
Ammonium Nitrogen ◽  
Organic Carbon Content ◽  
Significant Difference

Evolution process of quality of soft rock and sand compound soil and exploration of its stability were studied. In the present study different proportions (1 : 1, 1 : 2, 1 : 5, 0 : 1) of soft rock and sand compound soil as the research object were selected. Tthe particulate organic carbon, microbial organic carbon, effective phosphorus, quick-acting potassium, nitro nitrogen and ammonium nitrogen in the compound soil were analyzed. Results showed that after 9 years of planting, the organic carbon content of particles with 0 : 1 treatment was the lowest, at 1.73 g/kg, and the treatment of 1 : 5 and 1 : 1 increased significantly by 74.74 and 94.90%, respectively. In the 20 - 30 cm soil layer, the lowest organic carbon content of particles with 1 : 2 treatment was 1.92 g/kg, and there was no significant difference between the other three treatments, with 0 : 1, 1 : 5 and 1 : 1 treatment increased by 46.20, 29.27 and 34.07%, respectively compared to 1 : 2 treatment. With developed root system, the biomass of the root system was greater than the biomass left on the ground after harvest, and the average content of organic carbon of the particles increased first and then decreased later. The microbial community in the compound soil was significantly improved, and the carbon content of microorganisms in the treatment of 1 : 1, 1 : 2 and 1 : 5 was significantly higher than that of whole sand by 85, 165 and 143%, respectively, after multi-year of cultivation. The soil root microbial community showed a benign development. With the increase of planting years, the incorporation of soft rock accelerates the process of natural succession of soil quality. Compared with sandy land, compound soil has significantly improved storage of available phosphorus and available potassium nutrients. Compound soil has been cultivated for 9 years compared with 6 years, with the ratio of 1 : 1, 1 : 2, 1 : 5 and 0 : 1, the effective phosphorus content increased significantly by 141, 181, 169 and 63% respectively, the available potassium content increased significantly by 141, 181, 169 and 63% respectively. Compound soil has been cultivated for 9 years compared with 6 years, with the ratio of 1 : 1, 1 : 2, 1 : 5, and 0 : 1, the nitrate nitrogen content increased significantly by 40, 130, 135 and 120%, respectively. Nitro nitrogen is easily soluble in water, and the higher the proportion of sand in the compound soil, the easier the loss of nitrous nitrogen content in the soil. After multiple years of cultivation, the ammonium nitrogen content in the compound soil decreased, with a significant decrease of 35 (p < 0.05), 34 (p < 0.05), 45 (p < 0.05) and 37% (p < 0.05), respectively. Due to the disruption of harvest, the exposure of the surface soil is high, which causes ammonium nitrogen to evaporate. Bangladesh J. Bot. 50(3): 837-845, 2021 (September) Special

Space-time monitoring of soil organic carbon content across a semi-arid region of Australia

2021 ◽  
Vol 24 ◽  
pp. e00367
Author(s):  
Patrick Filippi ◽  
Stephen R. Cattle ◽  
Matthew J. Pringle ◽  
Thomas F.A. Bishop
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Carbon Content ◽  
Arid Region ◽  
Space Time ◽  
Organic Carbon Content ◽  
Soil Organic Carbon Content ◽  
Semi Arid Region ◽  
Semi Arid

scholarly journals Temporal mosaicking approaches of Sentinel-2 images for extending topsoil organic carbon content mapping in croplands

2021 ◽  
Vol 96 ◽  
pp. 102277
Author(s):  
Emmanuelle Vaudour ◽  
Cécile Gomez ◽  
Philippe Lagacherie ◽  
Thomas Loiseau ◽  
Nicolas Baghdadi ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Carbon Content ◽  
Organic Carbon Content ◽  
Sentinel 2
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