The hydrological properties of waterlogged and drained forests in Latvia

Zālītis, P.; Indriksons, Aigars

doi:10.2478/v10025-010-0006-9

Cited by 5 publications

(6 citation statements)

References 18 publications

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“…On one hand, the benefits of drainage on forest productivity are evident; it results in a better tree growth Zalitis & Indriksons, 2009). On the other hand, there may be negative consequences to soil carbon storage (Simola, Pitkänen, & Turunen, 2012;Pitkänen, 2013;Hommeltenberg et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Soil carbon stock changes in transitional mire drained for forestry in Latvia: a case study

Lupikis¹,

Lazdiņš²

2017

Research for Rural Development

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The aim of the study is to evaluate the impact of drainage on soil carbon stock in a transitional mire drained for forestry. The study site is located in the central part of Latvia representing hemiboreal vegetation zone. Site was drained in 1960. It is located in a catchment area of the river Veseta. An undrained site at the same catchment area was chosen for control (ca. 2.5 km between sites). In both sites, the depth of peat is 4 -4.5 m. Drained site is dominated by coniferous trees. Soil samples collected in 2014 were used to determine bulk density and carbon content, and to calculate soil carbon stock. Samples were collected down to 80 cm depth. Ground surface elevation was measured before and several times after the drainage to determine peat subsidence. Carbon stock has increased by 0.3 tons ha -1 yr 1 after drainage, although peat has subsided on average by 26 cm (13 -48 cm). Subsidence was mainly caused by physical shrinkage of peat not by organic matter oxidation. Drainage was followed by compaction of aerated soil layer, which has caused most of the subsidence, especially during the first years after drainage. Soil bulk density has increased almost twice at soil surface layer 0 -10 cm (from 75 kg m 3 to 141 kg m 3 ). Differences decrease at deeper sampling depths. It is concluded that drainage is not always followed by reduction of carbon stock in soil. Increased above and below ground litter production rates may offset accelerated decomposition of organic matter after drainage.

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Section: Introductionmentioning

confidence: 99%

Soil carbon stock changes in transitional mire drained for forestry in Latvia: a case study

Lupikis¹,

Lazdiņš²

2017

Research for Rural Development

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“…Transient waterlogging has a negative impact on crop yields, caused by limited root development and N loss due to denitrification and leaching (Zhang et al, 2006;Jiang et al, 2008). In forestry systems, too, tree growth is disturbed in areas with a high water table (Frelechoux et al, 2000;Zalitis and Indriksons, 2009;Cedro and Lamentowicz, 2011). As a result of a high water level and a lack of oxygen and nutrients, the decomposition of organic matter is inhibited and thus carbon rich soils are formed.…”

Section: Supply Of Primary Productivitymentioning

confidence: 99%

Assessment of Soil Functions: An Example of Meeting Competing National and International Obligations by Harnessing Regional Differences

Valujeva

Nipers

Lupikis

et al. 2020

Front. Environ. Sci.

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The increased demand for bio based products worldwide provides an opportunity for Eastern European countries to increase their production in agriculture and forestry. At the same time, such economic development must be congruent with the European Union’s long-term climate and biodiversity objectives. As a country that is rich in bioresources, the Latvian case study is highly relevant to many other countries—especially those in Central and Eastern Europe—and faces a choice of transition pathways to meet both economic and environmental objectives. In order to assess the trade-offs between investments in the bioeconomy and the achievement of climate and biodiversity objectives, we used the Functional Land Management (FLM) framework for the quantification of the supply and demand for the primary productivity, carbon regulation and biodiversity functions. We related the supply of these three soil functions to combinations of land use and soil characteristics. The demand for the same functions were derived from European, national and regional policy objectives. Our results showed different spatial scales at which variation in demand and supply is manifested. High demand for biodiversity was associated with areas dominated by agricultural land at the local scale, while regional differences of unemployment rates and the target for GDP increases framed the demand for primary productivity. National demand for carbon regulation focused on areas dominated by forests on organic soils. We subsequently identified mismatches between the supply and demand for soil functions, and we selected spatial locations for specific land use changes and improvements in management practices to promote sustainable development of the bio-economy. Our results offer guidance to policy makers that will help them to form a national policy that will underpin management practices that are effective and tailored toward local climate conditions and national implementation pathways.

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“…In Latvia, Northern Europa, about 47% of all forests either suffer from seasonally waterlogged soil conditions or have been drained [8]. Historically, a range of landscapes including raised bog and fen peatlands and forests with seasonally waterlogged soils have Forests 2023, 14, 1734 2 of 29 been drained to improve soil aeration, enhancing wood production.…”

Section: Introductionmentioning

confidence: 99%

Hydrological Coupling and Decoupling of Hydric Hemiboreal Forest Sites Inferred from Soil Water Models and Tree-Ring Chronology

Kalvāns,

Dauškane

2023

Forests

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The soil water regime often controls whether an ecosystem is a source of greenhouse gases such as CO2 or CH4 or is, instead, a carbon sink. The soil water regime of wetland forests is complicated by ecosystem feedback and landscape scale interactions. An in-depth understanding of these processes is needed to optimize the management of such ecosystems to balance timber production, carbon sequestration and biodiversity preservation. To investigate the soil water regime of non-riparian wetland forests, we set up a physically based Hydrus-1D soil water model for two hydric black alder Alnus glutinosa sites in a lowland hemiboreal setting informed by field observations of the soil water. Further, to gain ecohydrological insights, we explored the correlations between modeled long-term soil water parameters and local dendrochronology. We found that, at the clay soil site, the simulated root water uptake had a significant correlation (up to 0.55) with the residual tree-ring chronology. However, in the sandy soil site, the meteorological conditions—air temperature and precipitation—were better predictors for tree radial growth (correlation up to 0.42). In addition, we observed a trend towards dryer conditions during the modeling period, which might enhance the growing conditions for the considered forest stands due to a reduction in soil waterlogging.

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The hydrological properties of waterlogged and drained forests in Latvia

Cited by 5 publications

References 18 publications

Soil carbon stock changes in transitional mire drained for forestry in Latvia: a case study

Soil carbon stock changes in transitional mire drained for forestry in Latvia: a case study

Assessment of Soil Functions: An Example of Meeting Competing National and International Obligations by Harnessing Regional Differences

Hydrological Coupling and Decoupling of Hydric Hemiboreal Forest Sites Inferred from Soil Water Models and Tree-Ring Chronology

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