FIELD: ecology.
SUBSTANCE: samples of uncontaminated background soil and contaminated with heavy metals or crude oil and oil products are taken, and for each pair of samples of soil the number of ammonifying bacteria, the number of microscopic fungi, the abundance of bacteria of the genus Azotobacter, the catalase activity, the invertase activity, the germination of radish is determined. IRS of the soil is calculated as follows: IRS =Σ( Pconti/Pfoni)×100%/n, where Pconti is the value of i-th index (number of ammonifying bacteria, million/g, the number of microscopic fungi, million/g, the abundance of bacteria of the genus Azotobacter, %, catalase activity, ml O2/min, the invertase activity, ml, glucose/24 h, the germination of radish, %, for contaminated soil; Pfoni is the value of i-th/min, the indicator for uncontaminated soil; n is the number of indicators (n=6). The environmental condition of the soil is determined according to reduction of the IRS. If the IRS value in the contaminated soil is over 95%, the normal ecological condition of the soil is stated. In reduction of the IRS to 90-95% the satisfactory condition is stated. In reduction of the IRS to 75-90% the poor condition is stated. In reduction of the IRS below 75% the catastrophic condition is stated.
EFFECT: method enables to assess quickly and accurately the environmental condition of the soil.
17 tbl, 2 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD OF REMEDIATION CONTROL IN DISTRIBUTED SOIL SITES | 2017 |
|
RU2670455C2 |
BIOPREPARATION BASED ON STRAIN OF NITROGEN-FIXING BACTERIA AZOTOBACTER VINELANDII FOR STIMULATING GROWTH OF CROPS, INCREASING CROP CAPACITY AND ACTIVATING MICROBIOLOGICAL PROCESSES IN RHIZOSPHERE | 2023 |
|
RU2815232C1 |
METHOD FOR ASSESSMENT OF BIOLOGICAL ACTIVITY AND TOXICITY OF SOIL AND TECHNOGENIC SOILS | 2016 |
|
RU2620555C1 |
CRUDE OIL- AND OIL PRODUCT-POLLUTED LAND RECLAMATION METHOD | 1999 |
|
RU2174454C2 |
STRAIN OF BACTERIA ACHROMOBACTER ALBUM FOR PRODUCING PREPARATION INCREASING SUGAR CONTENT AND YIELD OF SUGAR BEET | 1992 |
|
RU2035442C1 |
METHOD FOR PREPARING HUMIC PREPARATION AND ITS USE FOR RECULTIVATION OF OIL-CONTAMINATED, DISTURBED AND DEGRADED SOILS | 2020 |
|
RU2757503C1 |
METHOD OF BIOLOGICAL RECLAMATION OF OIL-CONTAMINATED SOILS | 2012 |
|
RU2499636C1 |
METHOD FOR REMEDIATION OF LAND CONTAMINATED WITH PETROLEUM AND PETROLEUM PRODUCTS | 2006 |
|
RU2323790C1 |
METHOD OF PRE-PLANT TREATMENT OF SEEDS OF AGRICULTURAL PLANTS | 2017 |
|
RU2662992C1 |
METHOD OF BIOREMEDIATION OF CADMIUM-CONTAMINATED SOILS | 2012 |
|
RU2515691C1 |
Authors
Dates
2013-12-10—Published
2012-08-13—Filed