Pedogenic carbonates accumulation in a calcareous Mediterranean soil following introduction of irrigation

2021 ◽  
Author(s):  
Isabel Sonsoles De Soto ◽  
Iñigo Virto ◽  
Alberto Enrique ◽  
Rodrigo Antón ◽  
Pierre Barré ◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Nutrient Dynamics ◽  
Agricultural Soils ◽  
Relative Proportion ◽  
Soil Productivity ◽  
Soil Matrix ◽  
Pedogenic Carbonates ◽  
Short Period ◽  
Soil Carbonates

<p>In calcareous Mediterranean soils, pedogenic and lithogenic carbonates can be important constituents of the soil matrix. However, their relative proportion and their relation to soil functioning has been scarcely studied. The interest in determining the proportion of pedogenic carbonates relies on the fact that they can be related to the physical, chemical and biological properties of the soil and, therefore, affect plant growth and soil productivity. Carbonates dynamics can be affected by some farming management practices and land-use changes, such as the adoption of irrigation, due to changes in the soil water regime, the composition of the soil solution, the concentration of CO<sub>2</sub> in the soil atmosphere, and the changes related to fertilization.</p><p>To gain knowledge on the importance of the effect of the introduction of irrigation on carbonates dynamics in the tilled layer of agricultural soils, we studied the evolution of the proportion of pedogenic carbonates in a Mediterranean calcareous soil after seven years of irrigation. We used the isotopic signature of C in soil carbonates for these estimations. The study was conducted in two plots under contrasting agricultural management on the same soil unit: dryland wheat cropping, and irrigated corn for 7 consecutive years, in Enériz (Navarre, Spain).</p><p>Our results showed that the transformation of dryland wheat to irrigated corn, produced a preferential accumulation of pedogenic carbonates (31-56%) in the tilled layer (0-30 cm) of the irrigated soil only over 7 years after the land-use change. Therefore, the processes related to this land use change can alter the soil carbonates dynamics in a very short period of time, and they may have consequences in terms of plant nutrient dynamics and the soil structure. Future research on the origin of the soil carbonates (pedogenic or geogenic) in agricultural soils will help to understand the actual significance of carbonates dynamics in terms of the global C balance in these soils.</p>

scholarly journals Occurrence and distribution of heavy metals and tetracyclines in agricultural soils after typical land use change in east China

2013 ◽  
Vol 20 (12) ◽  
pp. 8342-8354 ◽  
Author(s):  
Longhhua Wu ◽  
Xia Pan ◽  
Like Chen ◽  
Yujuan Huang ◽  
Ying Teng ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Land Use ◽  
Land Use Change ◽  
Agricultural Soils ◽  
East China

scholarly journals Impacts of long-term disturbance on soil health with relation to vegetation distribution in a tropical ecosystem

2020 ◽  
Vol 2 (4) ◽  
pp. 149-156
Author(s):  
C. N. Basweti ◽  
◽  
S. Otor ◽  
S. Manohar ◽  
◽  
...  
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Land Cover ◽  
Soil Health ◽  
Integrated Approach ◽  
Soil Productivity ◽  
Land Cover Changes ◽  
Vegetation Distribution ◽  
Grassland Soil

Land-use and land-cover changes are the main cause of soil degradation and associated human and environmental problems. The study was conducted in Mai Mahiu ecosystem, Kenya whose aim was to assess long-term (1985 to 2015) impacts of land-use and land-cover changes on soil health with disturbance-induced vegetation distribution. Landsat archive was utilized to detect land-use change for 30 years at an interval of 15 years and analysed based on supervised image classification. Four land-use practices (undisturbed forest, disturbed forest, cropland and grassland) were selected and soil sampled to 15 cm depth for soil analyses. In this period, cropland increased by 135% at the expense of natural forest while built-up areas increased by three times. Soil bulk density increased significantly (p<0.001) from 0.93±0.02 g cm-3 in forest soil to 1.27±0.02 g cm-3 in disturbed grassland. Soil pH had significant change (p=0.002) that ranged between 6.19±0.14 and 7.18±0.12. Soil organic carbon declined significantly (p=0.008) with land-use change with losses of up to 63% recorded in disturbed grassland. Total nitrogen levels declined from 0.34% in the forest to 0.15% in disturbed grassland soil. The pronounced changes in land-use and land-cover in Mai Mahiu have negatively affected the soil health with a potential drop in soil productivity and ecosystem provisioning. An integrated approach, enforcement of relevant laws and policy implementation are recommended to restoring and maintaining soil quality of this ecosystem.

Effects of Land-Use Change on Soil Nutrient Dynamics in Amazônia

Ecosystems ◽  
2001 ◽  
Vol 4 (7) ◽  
pp. 625-645 ◽  
Author(s):  
Deborah A. McGrath ◽  
C. Ken Smith ◽  
Henry L. Gholz ◽  
Francisco de Assis Oliveira
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Nutrient Dynamics ◽  
Soil Nutrient ◽  
Effects Of Land Use

Effect of irrigation on carbonate dynamics in a calcareous soil using isotopic determinations

2019 ◽  
Vol 9 ◽  
Author(s):  
Isabel Sonsoles de Soto ◽  
Iñigo Virto ◽  
Pierre Barré ◽  
Alberto Enrique
Keyword(s):  
Calcareous Soil ◽  
Agricultural Soils ◽  
Isotopic Signature ◽  
Size Fractions ◽  
Pedogenic Carbonates ◽  
Preferential Accumulation ◽  
Soil Carbonates

This article evaluates the effect of irrigation on carbonates dynamics in agricultural soils. We studied the proportion and distribution of pedogenic carbonates in different size fractions in a soil with and without irrigation, using the isotopic signature of carbonates C. Irrigation can alter the distribution of soil carbonates and produce a preferential accumulation of pedogenic carbonates (87% to 92% with irrigation for 61% to 74% without irrigation), in the finer fractions.

Soil quality change 50 years after forestland conversion to tea farming

Soil Research ◽  
2018 ◽  
Vol 56 (5) ◽  
pp. 509 ◽  
Author(s):  
Azadeh Gholoubi ◽  
Hojat Emami ◽  
Amin Alizadeh
Keyword(s):  
Land Use ◽  
Organic Carbon ◽  
Land Use Change ◽  
Soil Quality ◽  
Crop Production ◽  
Management Practices ◽  
Limiting Factor ◽  
Soil Productivity ◽  
Northern Iran ◽  
Effects Of Land Use

Land-use change has been shown to affect soil quality and may lead to soil degradation. The effects of land-use change from natural forest to tea farming on soil properties and quality were studied within Guilan Province of northern Iran. Thirty-six soil samples (0–30 cm) were randomly collected from six sites with three replications at each site. The soil quality of forest and tea farms was determined using the cumulative rating (CR) index and the Cornell Comprehensive Assessment of Soil Health (CASH) scoring function. Effects of land-use change on soil quality or health were significant (P < 0.01) using both methods. Both methods for all regions (forest and tea fields) showed that forest land-use was more sustainable based on lower CR (lower limitation to crop production) and higher CASH scores (higher soil productivity and quality) than tea farm soils. Both methods were also negatively correlated with each other. Despite pH being a limiting factor for soil quality, it was not influenced by land-use change in most locations because the studied soils were acidic. However, organic carbon was the most important soil quality indicator, which was significantly correlated with soil physical, chemical and biological (respiration rate) properties. Therefore, land-use management practices that are continuously cultivated should include increases in organic carbon.

scholarly journals Estimating the Differential Change in Land Use Associated With Reservoir Construction

1976 ◽  
Vol 8 (1) ◽  
pp. 169-174
Author(s):  
Lonnie R. Vandeveer ◽  
H. Evan Drummond
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Land Use Planning ◽  
Quantitative Methods ◽  
Public Investment ◽  
Land Use Patterns ◽  
Use Patterns ◽  
Short Period ◽  
Substantial Investment ◽  
Federal Land

Much attention has been focused recently on the need for land use planning in this country. With federal land use legislation pending, it seems imperative that resource economists develop quantitative methods for evaluating and predicting land use change. The need to develop appropriate estimation techniques is most apparent for land use change in areas which have received substantial investment in a relatively short period of time. Construction of multi-purpose reservoirs is the most important type of public investment that has impacted land use patterns in Oklahoma since the “dust bowl” days.

scholarly journals Agricultural land-use change in a Mexican oligotrophic desert depletes ecosystem stability

PeerJ ◽  
2016 ◽  
Vol 4 ◽  
pp. e2365 ◽  
Author(s):  
Natali Hernández-Becerra ◽  
Yunuen Tapia-Torres ◽  
Ofelia Beltrán-Paz ◽  
Jazmín Blaz ◽  
Valeria Souza ◽  
...  
Keyword(s):  
Land Use ◽  
Bacterial Community ◽  
Land Use Change ◽  
Nutrient Dynamics ◽  
Agricultural Land ◽  
Bacterial Community Composition ◽  
Soil Nutrient ◽  
Natural State ◽  
Agricultural Land Use ◽  
Native Grassland

BackgroundGlobal demand for food has led to increased land-use change, particularly in dry land ecosystems, which has caused several environmental problems due to the soil degradation. In the Cuatro Cienegas Basin (CCB), alfalfa production irrigated by flooding impacts strongly on the soil.MethodsIn order to analyze the effect of such agricultural land-use change on soil nutrient dynamics and soil bacterial community composition, this work examined an agricultural gradient within the CCB which was comprised of a native desert grassland, a plot currently cultivated with alfalfa and a former agricultural field that had been abandoned for over 30 years. For each site, we analyzed C, N and P dynamic fractions, the activity of the enzyme phosphatase and the bacterial composition obtained using 16S rRNA clone libraries.ResultsThe results showed that the cultivated site presented a greater availability of water and dissolved organic carbon, these conditions promoted mineralization processes mediated by heterotrophic microorganisms, while the abandoned land was limited by water and dissolved organic nitrogen. The low amount of dissolved organic matter promoted nitrification, which is mediated by autotrophic microorganisms. The microbial N immobilization process and specific phosphatase activity were both favored in the native grassland. As expected, differences in bacterial taxonomical composition were observed among sites. The abandoned site exhibited similar compositions than native grassland, while the cultivated site differed.DiscussionThe results suggest that the transformation of native grassland into agricultural land induces drastic changes in soil nutrient dynamics as well as in the bacterial community. However, with the absence of agricultural practices, some of the soil characteristics analyzed slowly recovers their natural state.

LONG-TERM EFFECTS OF CULTIVATION AND LAND USE ON SOIL QUALITY IN QUEBEC

1980 ◽  
Vol 60 (3) ◽  
pp. 411-420 ◽  
Author(s):  
Y.A. MARTEL ◽  
A.F. MACKENZIE
Keyword(s):  
Land Use ◽  
Organic Matter ◽  
Soil Quality ◽  
Agricultural Soils ◽  
Organic Matter Content ◽  
Organic Soils ◽  
Soil Productivity ◽  
Clay Loam ◽  
Clay Loam Soil ◽  
Loam Soil

The purpose of this work is to assess the effects of different land-use practices on the quality of agricultural soils in Quebec. Studies done on three dairy farms, using the traditional rotation of 1 yr of cereals and 4 yr of hay, showed that the conversion of forest soils into agricultural soils caused a drop in nitrogen of 8% for a clay loam soil, but 21 and 31% for the sandy and silty loam soils, while the loss of organic matter was near 33% for the three soils. The decrease in water-stable aggregate was 84% on the clay loam soil and 50% on the two lighter soils. Work done on continuous meadows of 5 yr or longer showed significant increases in organic matter content and water-aggregate stability. Conversion from typical dairy-farm rotations to continuous corn and cereal rotations reduced structural stability and soil organic matter, as well as soil productivity, even when nutrient levels were improved by use of fertilizers. Other preliminary data indicate that soil compaction by heavy farm machinery, and drainage of organic soils may further reduce soil quality.

Does land use change alter water and nutrient dynamics of phreatophytic trees in the Central Monte desert?

Ecohydrology ◽  
2015 ◽  
Vol 9 (5) ◽  
pp. 738-752 ◽  
Author(s):  
Pablo A. Meglioli ◽  
Pablo E. Villagra ◽  
Julieta N. Aranibar
Keyword(s):  
Land Use ◽  
Land Use Change ◽  
Nutrient Dynamics ◽  
Monte Desert
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