scholarly journals ПОРІВНЯЛЬНА ХАРАКТЕРИСТИКА ВМІСТУ КАЛЬЦІЮ ТА СТУПЕНЯ КИСЛОТНОСТІ У ҐРУНТАХ ТЕРНОПІЛЬСЬКОЇ ОБЛАСТІ

2020 ◽  
Vol 78 (4) ◽  
pp. 41-49
Author(s):  
H. B. Humeniuk ◽  
V. O. Khomenchuk ◽  
N. G. Zinkovska ◽  
N. V. Moskalyuk
Keyword(s):  
Resource Use ◽  
Arable Land ◽  
Exchange Capacity ◽  
Natural Resource Use ◽  
Physical Conditions ◽  
Natural Factors ◽  
Forms Of Compounds ◽  
Almost All ◽  
Iron Manganese ◽  
Soil Colloids

The soils of Ukraine have been well studied, however this did not prevent them from the intensive degradation processes. About a third of the arable land is eroded, about 20% of organic matter is lost, almost all the arable land in the subsoil is compacted, the nutrient forms of mobile phosphorus and especially calcium are significantly reduced, calcium, occupying the bulk of the cation exchange capacity of the soil, serves as a regulator. Calcium is a coagulator of soil colloids, protects them from destruction and removal to the lower horizons of the profile; promotes the formation and preservation of humus and its stable compounds; creates proper physical conditions, plays a crucial role in structure formation; binds moving forms of compounds of aluminum, iron, manganese, which adversely affect the cultural vegetation. Calcium is also a direct nutrient of plants and soil microorganisms and plays an exclusive mobilizing role in soil, increasing the content of basic nutrients available to plants, primarily phosphorus. In the work we carried out chemical assessment of soils of Kozova, Zboriv Shumsk, Pidhaytsi and Berezhany districts of Ternopil region. We also studied the acidity, content of exchangeable calcium and natural factors that determine the peculiarities of agricultural natural resource use and influence. Correlation relationships between the studied values are established.

scholarly journals Assessing Natural Resource Use by Forest-Reliant Communities in Madagascar Using Functional Diversity and Functional Redundancy Metrics

PLoS ONE ◽  
2011 ◽  
Vol 6 (9) ◽  
pp. e24107 ◽  
Author(s):  
Kerry A. Brown ◽  
Dan F. B. Flynn ◽  
Nicola K. Abram ◽  
J. Carter Ingram ◽  
Steig E. Johnson ◽  
...  
Keyword(s):  
Functional Diversity ◽  
Natural Resource ◽  
Resource Use ◽  
Functional Redundancy ◽  
Natural Resource Use

scholarly journals Waste Management at the End of the Stone Age

2017 ◽  
Vol 10 (1) ◽  
pp. 44-57
Author(s):  
Filip Havlíček ◽  
Martin Kuča
Keyword(s):  
Waste Management ◽  
Environmental History ◽  
Natural Resource ◽  
Resource Use ◽  
Management Systems ◽  
Archaeological Sites ◽  
Stone Age ◽  
Upper Palaeolithic ◽  
Natural Resource Use ◽  
Lower Palaeolithic

AbstractThis article describes examples of waste management systems from archaeological sites in Europe and the Middle East. These examples are then contextualized in the broader perspectives of environmental history. We can confidently claim that the natural resource use of societies predating the Lower Palaeolithic was in equilibrium with the environment. In sharp contrast stand communities from the Upper Palaeolithic and onwards, when agriculture appeared and provided opportunities for what seemed like unlimited expansion.

scholarly journals The water retention properties of biochar derived from broiler poultry litter as applied to the Botswana soil

2020 ◽  
Vol 1 (1) ◽  
pp. 66-72 ◽  
Author(s):  
Thapelo Shomana ◽  
Daniel Botha ◽  
Paul Şerban Agachi
Keyword(s):  
Water Loss ◽  
Water Retention ◽  
Arable Land ◽  
Poultry Litter ◽  
Field Capacity ◽  
Exchange Capacity ◽  
Convincing Evidence ◽  
Similar Response ◽  
Zero Hunger ◽  
Water Retention Properties

Crop farming in Botswana is very modest and of high risk compared to its neighboring countries because of significant dependency on reduced and unreliable rainfall and as a result of soils with poor water holding capacity and low cation exchange capacity. For this reason, only about two thirds of the available arable land are planted and of the planted land only about half is harvested, which translates into only one third of productive arable land. This study examines how addition of poultry litter (PL) biochar affects water retention properties of Botswana’s sandy soils. While many variables should be studied to fully comprehend this aspect, this paper exploits in detail, effects of biochar addition in reducing rate of water loss by evaporation. This work provides convincing evidence that addition of PL-derived biochar (as little as 10%) can significantly reduce water loss by evaporation, thus increasing water soil retention. It is demonstrated that water retention properties increase with increasing rate of biochar application. Two types PL-derived biochar were studied: (i) one with sunflower husks bedding and another (ii) with woodchips bedding. Though both biochars showed similar response to the test, the biochar with sunflower husks was slightly superior. Biochar also indicated significant hygroscopicity, when dried and left exposed to the atmosphere, as moisture content increased with increasing humidity. Based on initial indicators, further study should be done at laboratory and field scale to determine optimum conditions of biochar application in the quest to improve food security for Botswana, as well as improve employment and environmental goals of the country. A comprehensive further study should critically examine Field Capacity, Permanent Wilting Point, and Plant Available Water. As an ultimate goal, enhancing soil moisture retention properties of Botswana’s sandy soil enables to increase success rate in the traditional farming sector and, consequently, offers potential to accomplish “No Poverty” and “Zero Hunger” sustainable development goals.

Sign in / Sign up

Export Citation Format

Share Document