The Effects of Physicochemical Parameters on Analysed Soil Enzyme Activity from Alice Landfill Site

Abstract

The soil pollution as a product of xenobiotics, industrial action, agricultural chemicals, or inappropriate disposal of waste can change the natural environment of soil indices and trigger life-threatening situations. Soil enzyme activity is the suitable bio-indicator or parameter for monitoring soil pollution due to their sensitivity that quickly responds to any soil disturbances. Also, they are known to play an essential role in maintaining soil health and a quality environment. This study aimed to determine the levels of enzyme activity in soil from polluted and unpolluted sites and study the relationship between the physicochemical properties and soil enzyme activity to manage soil pollution. Four selected enzymes (Urease, Invertase, Catalase, and Phosphatase) were examined for their activity from forty samples using the assay method for 24 h; the colorimetry spectrophotometer measured their activity. The obtained data revealed that Invertase activity was a predominant enzyme in all soil samples. Whereas, the urease activity had obtained in low amounts for all collection sites, especially on Site A1. Soil pH had discovered to range between 5.8 and 8.51, moisture content values recorded to vary from 0.12% to 9.09%, and soil organic carbon recorded to fluctuate between 0.08% and 1.54%. Urease and phosphatase activity correlated positively with all soil physicochemical properties except for moisture content, which correlated negatively (r = −0.297; p ≥ 0.05). The invertase activity negatively associated all soil physicochemical properties, excluding the moisture content that correlated positively and significantly with invertase activity. We noted that the dumpsite soil contains low enzyme activity levels, which might attribute to the type of waste disposed off. Also, only the phosphatase activity reported correlating positively with all examined physicochemical parameters entirely.

Assessment of the health risk of some heavy metals in cabbage grown on dumpsite at Hanwa in Zaria, Kaduna State, Nigeria

“…Soil parameters such as Particle Size, pH, Moisture Content, and Organic Matter were determined using standard method as described by Nura et al (2021) and Nontobeko et al (2021).…”

Drought Sensitivity of Spring Wheat Cultivars Shapes Rhizosphere Microbial Community Patterns in Response to Drought

“…The TK content was determined using the NaOH melting-flame photometer method. Soil microbiological properties were determined by catalase (S-CAT), alkaline phosphatase (S-ALP) [43], microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), and microbial biomass phosphorus (MBP) [44]. The S-CAT was determined via potassium permanganate titration.…”

Anthropogenic influence on enzymatic activity of light-grey forestal surface-gleyed soil

“…І хоча в природних екосистемах відзначають залежність каталазної активності ґрунту від рН, однак в ясно-сірому лісовому ґрунті нашого досліду її не виявлено (коефіцієнт кореляції складає для ячменю та кукурудзи відповідно 0,41 та 0,47). Це ймовірно пов'язано з тим, що освоєному ґрунті одночасно діють декілька факторів, що впливають на ферментативну активність -наявність органічної речовини, внесення меліоранту, форми добрив, фізичні властивості ґрунту тощо (Maphuhla et al, 2020). Найнижчі значення загальної біологічної активності ясно-сірого лісового поверхнево оглеєного ґрунту під ячменем ярим та кукурудзою на зерно були отримані на контрольному варіанті без добрив -відповідно 15,65±1,93 та 30,47±8,05 %.…”