Вміст валових та водорозчинних форм органічної речовини у ґрунті за різних способів лісокористування
Water-base organic compounds are among the most labile fractions of soil organic matter. Their content are considered a sensitive indicator of soil quality and changes quantitatively under the influence of anthropogenic pressure. The objective of this paper was to evaluate the impacts of different f...
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M.M. Gryshko National Botanical Garden of the NAS of Ukraine
2014
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Plant Introduction| _version_ | 1860121745371955200 |
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| author | Zaimenko, N.V. Dziuba, O.I. Bedernichek, T.Yu. |
| author_facet | Zaimenko, N.V. Dziuba, O.I. Bedernichek, T.Yu. |
| author_sort | Zaimenko, N.V. |
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| datestamp_date | 2019-11-24T21:22:16Z |
| description | Water-base organic compounds are among the most labile fractions of soil organic matter. Their content are considered a sensitive indicator of soil quality and changes quantitatively under the influence of anthropogenic pressure. The objective of this paper was to evaluate the impacts of different felling systems on total and water extractable organic carbon content in soil. The soil samples were taken from 50 cm depth soil profile with 5 cm step. Total organic carbon (TOC), cold water extractable organic carbon (CWEOC) and hot water extractable organic carbon (HWEOC) contents in soil were determined. The highest TOC content was found in the soil under the old-growth hornbeam-oak forest: 49–63 mg/g and 12–6 mg/g in a top 0–5 cm and 0–50 cm layers respectively. Gradual, group-selection and clear felling of hornbeam were attended by significant transformations of organoprofile and decrease of TOC content especially in top 15 cm layer. However, fractional contents of cold and hot water extractable organic carbon increased with depth. The results of this research indicate that among the studied scenarios of the forest management, gradual felling caused minimal changes of soil organic matters. |
| doi_str_mv | 10.5281/zenodo.1494345 |
| first_indexed | 2025-07-17T12:40:58Z |
| format | Article |
| fulltext |
87ISSN 1605-6574. Інтродукція рослин, 2014, № 2
© N.V. ZAIMENKO, O.I. DZIUBA,
T.Yu. BEDERNICHEK, 2014
UDC 631.417
N.V. ZAIMENKO, O.I. DZIUBA, T.Yu. BEDERNICHEK
M.M. Gryshko National Botanical Garden of National Academy of Sciences of Ukraine
Ukraine, 01014 Kyiv, Timiryazevska Str., 1
TOTAL AND WATERSOLUBLE ORGANIC MATTER CONTENT
IN SOIL UNDER VARIOUS METHODS OF FORESTRY
Water-base organic compounds are among the most labile fractions of soil organic matter. Their content are considered a
sensitive indicator of soil quality and changes quantitatively under the influence of anthropogenic pressure. The objective of
this paper was to evaluate the impacts of different felling systems on total and water extractable organic carbon content in
soil. The soil samples were taken from 50 cm depth soil profile with 5 cm step. Total organic carbon (TOC), cold water
extractable organic carbon (CWEOC) and hot water extractable organic carbon (HWEOC) contents in soil were determined.
The highest TOC content was found in the soil under the old-growth hornbeam-oak forest: 49–63 mg/ g and 12–16 mg/ g
in a top 0–5 cm and 0–50 cm layers respectively. Gradual, group-selection and clear felling of hornbeam were attended by
significant transformations of organoprofile and decrease of TOC content especially in top 15 cm layer. However, fractional
contents of cold and hot water extractable organic carbon increased with depth. The results of this research indicate that
among the studied scenarios of the forest management, gradual felling caused minimal changes of soil organic matters.
Key words: soil organic matter, labile humus, water extractable organic carbon, dissolved organic matter, forest soil,
deforestation, felling.
Labile organic matter in soils plays an important
role in functioning of terrestrial ecosystems and is
closely associated with many important chemical,
physical and biological processes (Mathers et al.,
2000; Chen et al., 2004). It consists of non-hu-
mified materials of different nature such as hydro-
carbon monomers, low molecular weight organic
acids, amino acids and low molecular weight pro-
teins (Haynes, 2005). The most active and mobile
fractions of labile organic matter in soils are so-
luble in water (Bu et al., 2011).
Dissolution of soil organic compounds in wa-
ter leads to initiation of the nutrients flow from
terrestrial into aquatic ecosystems. Nowadays,
the rates of dissolved organic carbon (DOC) out-
flow from terrestrial ecosystems increases (Wor-
rall, 2003). The loss of soil organic matter due to
washout of dissolved organic compounds is the
second largest carbon flow after soil respiration
(Wetzel, 1992). The increase of DOC concentra-
tion in surface waters of England and Wales is ob-
served during the last 40 years and this process
reflects the worldwide trend (Freeman, 2004). An
additional point is that soil CO
2
efflux is influ-
enced by the quantity and quality of soil organic
matter (Kim et al., 2012). Soluble in water organ-
ic materials are important and readily decompos-
able substrates for microorganisms (Marschner,
Bredow, 2002). This fraction of soil organic mat-
ter (SOM) is closely related to the production of
greenhouse gases due to its high biodegradation
rates (Gregorich et al., 2003). Thus, the manage-
ment of soluble in water organic carbon pools and
fluxes in ecosystems is also important in the con-
text of global climate changes.
Water extractable organic matter is a subject of
wide range of anthropogenic activities. According
to Yanai et al. (2003), quantitative and qualitative
evaluation of DOC changes in soil due to logging
and agricultural use of deforested territories is one
of the most important problems of modern soil
ecology and soil science. Deforestation influences
the transportation of DOC from forest floor to
mineral layers of soil and changes conditions of
SOM mineralization (Likens, Bormann, 1995).
Despite the importance of water soluble SOM
in functioning of terrestrial ecosystems the peculi-
88 ISSN 1605-6574. Інтродукція рослин, 2014, № 2
N.V. Zaimenko, O.I. Dziuba, T.Yu. Bedernichek
arities of its migration and transformations in for-
est ecosystems remain largely unclear (Guggen-
berger, Kaiser, 2003). The majority of studies are
focused on TOC and DOC dynamics after forest
harvest with or without residue removing (Yanai et
al., 2003). However, they did not pay enough at-
tention to the influence of felling systems on or-
ganic carbon content in soil.
For this reason, the objectives of our study were:
(i) to evaluate the impact of various forest manage-
ment scenarios in old-growth hornbeam-oak forest
on total and soluble in water SOM content in soil
and (ii) to explore the possibilities of dissolved or-
ganic compounds migration down the soil profile
under the influence of different felling systems.
Materials and methods
Study area
The experiments were carried out on four plots
(100 × 100 m) located in typical for Central and
Eastern Europe hornbeam-oak forest (49° 32 ' N.,
23° 20 ' E.), in the upper part of Dniester basin,
Western Ukraine (Fig. 1). The field experimental
plots were established in 2006. The first plot — in
pristine old-growth hornbeam-oak forest, the se-
cond — in an adjacent part of forest, where gradu-
al felling of hornbeam was carried out (Tabl. 1),
the third plot — in forest, after group-selection
felling of hornbeam made by forming five 300 m2
gaps. Fourth sample plot was located in the forest
after clear felling of second storey.
The soils in study area were Gleyic Albeluvisols
(ABg). For the last 30 years mean annual bulk pre-
cipitation was 697 mm, the annual average tem-
perature was 7.8 °C and the sum of active temper-
atures — about 2400–2600 °С.
Soil sampling and analysis
For this study the soil samples were taken from 50 cm
depth soil profile, with a 5 cm step. Soil sampling
was held in October 2009, the third year after fell-
ing. The samples were taken from three sides of the
soil pit and with a special bore from five points lo-
cated less than 5 m from pit. Each experimental
plot included 5 sample points. Fresh soil samples
were passed through 3 mm sieve and mixed samp-
Fig. 1. Scheme of study area with experimental plots and sample points
89ISSN 1605-6574. Інтродукція рослин, 2014, № 2
Total and watersoluble organic matter content in soil under various methods of forestry
Table 1. Standing timber volumes on experimental plots before and after felling, m3/ha
Forest management scenario
Standing timber volume
before felling after felling
oak hornbeam oak hornbeam
Old growth forest 128 32 128 32
Gradual felling of hornbeam 127 43 127 18
Group-selection felling of hornbeam 131 38 118 21
Clear felling of hornbeam 122 41 122 0
Fig. 2. Total organic carbon content in soils under various forest management scenarios (range plots with
medians, maximums and minimums)
les for each 5 cm layer were made. For all the anal-
yses, described in this study, the soil samples were
air-dried. The chemical composition was provided
in dry matter. The total organic carbon (TOC)
content was determined by wet combustion meth-
od (ISO 14235, 1998). The absorbance of the ob-
tained solutions was measured spectrophotometri-
cally on SPEKOL 2000 (Analytik Jena). Content
90 ISSN 1605-6574. Інтродукція рослин, 2014, № 2
N.V. Zaimenko, O.I. Dziuba, T.Yu. Bedernichek
of cold and hot water extractable organic carbon
was determined according to the method of Hay-
nes and Francis (1993) in modification of Ghani et
al. (2003) that consists of two-step water extrac-
tion. The first step included water hydrolysis at 20
°C for 30 min and caused the removal of the most
labile organic compounds. The fraction obtained is
known as cold water extracted organic carbon
(CWEOC). Quantitatively, it is close to the dis-
solved organic carbon (DOC) content measured in
the soil solution (Chantigny, 2003). The second
step included water extraction at 80 °C for 16 h.
The procedure removes more stable compounds
which form the reserve of nutrients and energy for
plants and soil microorganisms. The fraction ob-
tained is known as “hot water extracted organic
carbon” (HWEOC). In this study, we excluded
CWEOC from HWEOC to guarantee the differen-
tial evaluation of these two fractions of soil organic
matter. In each experiment, five replicates were
taken for each soil sample.
Statistical analysis
Statistical analysis of experimental data was made
according to the recommendations of S. Glantz
Fig. 3. Water extractable organic carbon content in soils under various forest management scenarios (range
plots with medians, maximums and minimums)
91ISSN 1605-6574. Інтродукція рослин, 2014, № 2
Total and watersoluble organic matter content in soil under various methods of forestry
(1997). For comparisons of multiple groups, the
nonparametric Kruskal–Wallis test followed by
Conover post hoc test were used. Linear and expo-
nential regressions analyses were used to model the
profile changes of TOC, CWEOC and HWEOC
contents in soil with depth. The difference was
considered significant when p < 0.05. Statistical
analyses were performed using the MS Excel 2007
with add-in AtteStat 12.1.7.
Results and Discussion
The highest content of TOC was found in the or-
ganic horizons and decreased with depth (Fig. 2).
The soil organic carbon content in soil profile
under the old-growth forest was the highest in
the top 5 cm layer (49–63 mg/g) and decreased
exponentially with depth, reaching only 1.5–
2.0 mg/g at 45–50 cm.
On all other experimental plots a significant
(p < 0.05) decrease of TOC content with the in-
crease of the intensity of felling was observed. The
major transformations were found in the upper 15 cm
layer, with maximum in depth 0–5 cm. The re-
sults obtained indicate the simplification of well
stratified forest soils. The most significant chang-
es were found in the subsurface soil layers. High
difference between TOC content in top layers is
usual for forest soils. For example, in Cambisols
under beech forest (Fagus sylvatica L.) in 5 cm
subsurface layer of soil TOC content was 48 and
only 26 mg/g in layer 5–10 cm and in Cambisols
under oak forest (Quercus cerris L.) these values
were 46 and 20 mg/g respectively (Buzek et al.,
2009).
In our research the changes in total organic
carbon content on top layers of soil were attended
by forming new zones of TOC accumulation in
soils after hornbeam felling. These processes could
be explained by changing of the immobilization-
mineralization balance in soil after the elimina-
tion of edificator and migration of dissolved or-
ganic matter down the profile (Fig. 3). In the ma-
jority of cases not only TOC but also CWEOC and
HWEOC contents were the highest in subsurface
layer and decreased with depth. Strong correla-
tions (0.77 < ρ < 0.99, p < 0.01) between quantita-
tive profile changes of SOM and water-extractable
organic matter fractions were found on every ex-
perimental plot. In addition, strong correlations
between quantitative profile changes of CWEOC
and HWEOC were found in control (ρ = 0.99, p <
0.01), after gradual felling (ρ = 0.98, p < 0.01) and
after clear felling (ρ = 0.94, p < 0.01), and much
weaker in soil after group-selection felling of
hornbeam (ρ = 0.73; p = 0.02).
With the increase of felling intensity in forest
ecosystem, a lot of ready for mineralization or-
ganic compounds migrated downwards the soil
Table 2. Content of cold (CWEOC) and hot water extractable organic carbon (HWEOC)
in % of total organic carbon (TOC), n=5 for each soil layer (old-growth forest, gradual felling and clear felling)
d, см
Old growth forest
Gradual felling
Group-selection felling
Clear felling
CWEOC HWEOC CWEOC HWEOC CWEOC HWEOC CWEOC HWEOC
0–5 1.45 16.18
1.54 18.51
2.04 13.3
2.04 12.12
5–10 2.45 18.27 2.07 9.12 2.64 6.84 1.86 12.55
10–15 3.60 15.72 1.78 7.60 4.19 7.91 2.34 12.52
15–20 3.52 10.55 2.13 11.54 6.01 11.52 2.26 18.07
20–25 3.43 16.22 2.52 7.84 11.01 27.75 1.73 12.14
25–30 2.92 15.17 3.07 7.68 3.83 4.74 2.86 12.47
30–35 3.64 16.28 7.95 13.26 16.67 8.91 2.60 23.05
35–40 4.38 20.54 8.18 14.47 18.61 8.37 3.65 45.99
40–45 6.67 19.39 15.01 41.25 8.40 10.08 6.82 63.73
45–50 2.42 15.15 33.33 30.00 50.02 25.04 2.76 23.76
92 ISSN 1605-6574. Інтродукція рослин, 2014, № 2
N.V. Zaimenko, O.I. Dziuba, T.Yu. Bedernichek
profile and accumulated on waterproof surfaces
located out of rhizosphere. Maximal imbalance
between labile (CWEOC) and more stable (HWEOC)
fractions of SOM was found in soil profile after
group-selection felling. On this experimental plot
at the depth of 30–40 cm 0.35–0.45 mg/g of
CWEOC was detected. This content was about 2.5
times higher than in soil of old growth forest and
after gradual felling and more than 6 times higher
than in soil after clear felling of hornbeam. Al-
though to compare the profile changes of water-
extractable organic matter contents on different
experimental plots it is necessary to take into ac-
count uneven TOC content. Proposed results in a
differential form — in percentage of TOC — makes
them more convenient to interpret (Partyka, Ham-
kalo, 2010).
Gradual hornbeam group-selection and clear
felling in old-growth oak-hornbeam forest caused
downward migration of dissolved organic matter
(Tabl. 2). Content of both extracted fractions of
labile SOM increased with depth. It should be
noted that in forest soils after gradual and group-
selection felling of hornbeam the configurations
of organoprofiles were complicated with many
peaks and zones of labile SOM accumulation. At
the same time, profile changes of CWEOC and
HWEOC relative content in control and after
clear felling of hornbeam have much in common:
simple organoprofile, peaks on depth 40–45 cm
and high HWEOC/CWEOC ratio which in-
creased with depth.
Mobilization of stable organic components and
their redistribution in soil profile means that the
observed forest management scenarios determine
quantitative and qualitative characteristics of soil
organic matter. Cutting the edificator also causes
outflow of soluble in water organic materials from
rhizosphere due to evapotranspiration decrease
(Likens, Bormann, 1995). Partly they can be ad-
sorbed by minerals. Although each year the losses
of dissolved organic carbon from forest soil aver-
age 1–10 g /m2 (Guggenberger, Kaiser, 2003).
This study has shown that the intensity of forest
management systems significantly influenced the
quality and quantity of soil organic matter. The in-
crease of felling intensity in the forest ecosystems
is attended by soil organic carbon losses due to
SOM mobilization and mineralization. In studied
50 cm soil layer the impacts of each forest man-
agement system was determined. The highest
quantities of TOC were detected in the soil under
the pristine oak-hornbeam forest — between 12.09
and 16.05 mg/g. It decreased by 6, 37 and 44 %
after gradual group-selection and clear felling of
hornbeam respectively. CWEOC content in con-
trol was between 0.32 and 0.42 mg/g. It decreased
by 14 and 51 % after gradual and clear felling of
hornbeam respectively and increased on 5% in
soil after group-selection felling of hornbeam.
However, HWEOC content in this variant de-
creased by 59 %, compared to 2.15–2.40 mg/g in
control. In forest soil after gradual and clear fell-
ing of hornbeam the decrease was observed in 29
and 49 % respectively. All these changes were at-
tended by the increase of fractional content of
water-extractable organic matter with depth of
soil profile. The results of this research indicate
that among four studied scenarios of forest mana-
gement, gradual felling caused minimal losses of
water extractable organic matter in soil. In natural
forests we recommend preferring this type of fell-
ing, while intensive systems should be used only
occasionally. The current investigation was carried
out in temperate broadleaf forest. There is, there-
fore, a definite need for future research in mixed
and coniferous forests that differ from studied eco-
systems in SOM quality and quantity.
Acknowledgements
We are highly grateful to LG Electronics for finan-
cial support (Award to T.B.), which made possible
to carry out this study.
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Надійшла до редакції 15.04.2014 р.
Рекомендував до друку П.А. Мороз
Н.В. Заіменко, О.І. Дзюба, Т.Ю. Бедернічек
Національний ботанічний сад
ім. М.М. Гришка НАН України,
Україна, м. Київ
ВМІСТ ВАЛОВИХ ТА ВОДОРОЗЧИННИХ ФОРМ
ОРГАНІЧНОЇ РЕЧОВИНИ У ҐРУНТІ ЗА РІЗНИХ
СПОСОБІВ ЛІСОКОРИСТУВАННЯ
Водорозчинні органічні сполуки — одна з найлабіль-
ніших фракцій органічної речовини ґрунту. Їх вміст є
важливим індикатором яко сті ґрунту, зазнаючи кіль-
кісних змін під впливом антропогенних впливів. Ме-
тою нашої роботи було оцінити вплив різних систем
рубок на валовий вміст карбону органічних сполук
(С
орг
) та вміст водорозчинних органічних сполук у
ґрунті. Зразки ґрунту відбирали до глибини 50 см з
кроком 5 см. Проводили визначення вмісту С
орг
, екс-
трагованого холодною (ЕХВОР) та гарячою (ЕГВОР)
водою органічних речовин. Найвищий вміст С
орг
ви-
явлено у ґрунті під непорушеною грабовою дібровою —
49–63 і 12–16 мг/г у шарах 0–5 і 0–50 см відповідно.
Поступова, групово-вибіркова та суцільна рубки гра-
ба супроводжувались значними змінами ор га но про-
філю і зменшенням запасу С
орг
, особливо у приповерх-
невому шарі ґрунту потужністю 15 см. Фракційний
вміст ЕХВОР та ЕГВОР з глибиною збільшувався. Із
досліджених способів лісокористування рівно мір но-
поступова рубка спричинила мінімальні кількісні та
якісні зміни органічної частини ґрунту.
Ключові слова: органічна речовина ґрунту, лабільний гу-
мус, водорозчинний органічний карбон, розчинена ор-
ганічна речовина, лісовий ґрунт, знеліснення, рубки.
94 ISSN 1605-6574. Інтродукція рослин, 2014, № 2
N.V. Zaimenko, O.I. Dziuba, T.Yu. Bedernichek
Н.В. Заименко, О.И. Дзюба, Т.Ю. Бедерничек
Национальный ботанический сад им. Н.Н. Гришко
НАН Украины, Украина, г. Киев
СОДЕРЖАНИЕ ВАЛОВЫХ И ВОДОРАСТВОРИМЫХ
ФОРМ ОРГАНИЧЕСКОГО ВЕЩЕСТВА В ПОЧВЕ
ПРИ РАЗНЫХ СПОСОБАХ ЛЕСОПОЛЬЗОВАНИЯ
Водорастворимые органические соединения — одна
из наиболее лабильных фракций органического ве-
щества почвы. Их содержание является важным ин-
дикатором качества почвы, подвергаясь количест-
венным изменениям под влиянием антропогенных
факторов. Целью нашей работы было оценить влия-
ние разных систем рубок на валовое содержание
углерода органических соединений (С
орг
) и содержа-
ние водорастворимых органических соединений в
почве. Образцы почвы отбирали с глубины 50 см с
шагом 5 см. Проводили определение содержания
С
орг
, экстрагированного холодной (ЭХВОР) и горя-
чей (ЭГВОР) водой органических веществ. Высокое
содержание С
орг
об наружено в почве под ненарушен-
ной грабовой дубравой 49–63 и 12–16 мг/г в слоях
0–5 и 0–50 cм соответственно. Постепенная, груп-
по- выборочная и сплошная рубки граба сопрово-
ждались значительными изменениями органопро-
филя и уменьшением запаса С
орг
, особенно в при-
поверхностном слое почвы мощностью 15 см. Фрак-
ционное содержание ЭХВОР и ЭГВОР с глубиной
увеличивалось. Из исследованных способов лесо-
пользования равномерно-по сте пен ная рубка вызва-
ла минимальные количественные и качественные
изменения органической части почвы.
Ключевые слова: органическое вещество почвы, ла-
бильный гумус, водорастворимый органический уг-
лерод, растворенное органическое вещество, лесная
почва, обезлесение, рубки.
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| id | oai:ojs2.plantintroduction.org:article-255 |
| institution | Plant Introduction |
| keywords_txt_mv | keywords |
| language | English |
| last_indexed | 2025-07-17T12:40:58Z |
| publishDate | 2014 |
| publisher | M.M. Gryshko National Botanical Garden of the NAS of Ukraine |
| record_format | ojs |
| resource_txt_mv | wwwplantintroductionorg/82/8348408e0aafc4ec70867123762d6582.pdf |
| spelling | oai:ojs2.plantintroduction.org:article-2552019-11-24T21:22:16Z Total and watersoluble organic matter content in soil under various methods of forestry Вміст валових та водорозчинних форм органічної речовини у ґрунті за різних способів лісокористування Zaimenko, N.V. Dziuba, O.I. Bedernichek, T.Yu. Water-base organic compounds are among the most labile fractions of soil organic matter. Their content are considered a sensitive indicator of soil quality and changes quantitatively under the influence of anthropogenic pressure. The objective of this paper was to evaluate the impacts of different felling systems on total and water extractable organic carbon content in soil. The soil samples were taken from 50 cm depth soil profile with 5 cm step. Total organic carbon (TOC), cold water extractable organic carbon (CWEOC) and hot water extractable organic carbon (HWEOC) contents in soil were determined. The highest TOC content was found in the soil under the old-growth hornbeam-oak forest: 49–63 mg/g and 12–6 mg/g in a top 0–5 cm and 0–50 cm layers respectively. Gradual, group-selection and clear felling of hornbeam were attended by significant transformations of organoprofile and decrease of TOC content especially in top 15 cm layer. However, fractional contents of cold and hot water extractable organic carbon increased with depth. The results of this research indicate that among the studied scenarios of the forest management, gradual felling caused minimal changes of soil organic matters. Водорозчинні органічні сполуки – одна з найлабільніших фракцій органічної речовини ґрунту. Їх вміст є важливим індикатором яко сті ґрунту, зазнаючи кількісних змін під впливом антропогенних впливів. Метою нашої роботи було оцінити вплив різних систем рубок на валовий вміст карбону органічних сполук (Сорг ) та вміст водорозчинних органічних сполук у ґрунті. Зразки ґрунту відбирали до глибини 50 см з кроком 5 см. Проводили визначення вмісту Сорг, екстрагованого холодною (ЕХВОР) та гарячою (ЕГВОР) водою органічних речовин. Найвищий вміст Сорг виявлено у ґрунті під непорушеною грабовою дібровою – 49–63 і 12–16 мг/г у шарах 0–5 і 0–50 см відповідно. Поступова, групово-вибіркова та суцільна рубки граба супроводжувались значними змінами ор га но профілю і зменшенням запасу Сорг, особливо у приповерхневому шарі ґрунту потужністю 15 см. Фракційний вміст ЕХВОР та ЕГВОР з глибиною збільшувався. Із досліджених способів лісокористування рівно мір нопоступова рубка спричинила мінімальні кількісні та якісні зміни органічної частини ґрунту. M.M. Gryshko National Botanical Garden of the NAS of Ukraine 2014-06-01 Article Article application/pdf https://www.plantintroduction.org/index.php/pi/article/view/255 10.5281/zenodo.1494345 Plant Introduction; Vol 62 (2014); 87-94 Інтродукція Рослин; Том 62 (2014); 87-94 2663-290X 1605-6574 10.5281/zenodo.3377727 en https://www.plantintroduction.org/index.php/pi/article/view/255/243 http://creativecommons.org/licenses/by/4.0 |
| spellingShingle | Zaimenko, N.V. Dziuba, O.I. Bedernichek, T.Yu. Вміст валових та водорозчинних форм органічної речовини у ґрунті за різних способів лісокористування |
| title | Вміст валових та водорозчинних форм органічної речовини у ґрунті за різних способів лісокористування |
| title_alt | Total and watersoluble organic matter content in soil under various methods of forestry |
| title_full | Вміст валових та водорозчинних форм органічної речовини у ґрунті за різних способів лісокористування |
| title_fullStr | Вміст валових та водорозчинних форм органічної речовини у ґрунті за різних способів лісокористування |
| title_full_unstemmed | Вміст валових та водорозчинних форм органічної речовини у ґрунті за різних способів лісокористування |
| title_short | Вміст валових та водорозчинних форм органічної речовини у ґрунті за різних способів лісокористування |
| title_sort | вміст валових та водорозчинних форм органічної речовини у ґрунті за різних способів лісокористування |
| url | https://www.plantintroduction.org/index.php/pi/article/view/255 |
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