Assessing the effect of possible global climate changes on the fertility of Mexican soils and the prediction of crop yields

Nikolskii, Yu. N.; Castillo-Álvarez, Marcial; Bakhlaeva, O. S.; Gama-Castro, Jorge; Landeros-Sánchez, Cesáreo

doi:10.1134/s106422931009005x

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…The approach by Volobuyev (1974) was applied in this study which is based on quantitative models for assessing the role of solar energy and water in different processes of soil genesis including evapotranspiration, photosynthesis, formation of organic matter, physical and chemical weathering, and migration of substances in the soil profile. According to Volobuyev's concept, some regional chemical and physical properties of virgin soils inside geomorphologically homogeneous soil groups with similar genesis depend on mean annual climatic conditions expressed by the climatic index, I, (some authors call this index as the radiative index of dryness) (Volobuyev, 1974;Aidarov, 1985;Nikol'skii et al, Vol. 6, No.…”

Section: Methodsmentioning

confidence: 99%

“…In order to establish a relationship between soil fertility and climatic index, I, we analyzed soil organic matter content (SOM), soil phosphorus available for crops (P), exchangeable K, Ca, Na and Mg, pH (pH water ), cation exchange capacity (CEC), and the dimensionless integral soil fertility index, F, which was calculated using OM, P, K and pH (Pegov and Khomyakov, 1991;Nikol'skii et al, 2010):…”

Section: Methodsmentioning

confidence: 99%

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Evaluation of Soil Fertility Indices of Freshwater Irrigated Soils in Mexico Across Different Climatic Regions

Nikolskii-Gavrilov¹,

Aidarov²,

Landeros-Sánchez³

et al. 2014

JAS

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Irrigation has different impacts on soils. The most studied negative impacts are related with salinity, sodicity or soil contamination because of poor irrigation water quality or rising water tables. It is assumed that with suitable water quality the impact of irrigation on soil is positive. However, there are publications showing that under certain conditions long-term freshwater irrigation may cause soil fertility deterioration. Therefore a hypothesis has appeared that some Mexican soils may also be degraded. The objective of our study was to compare some properties of agricultural soils irrigated for more than 30 years with freshwater with non-irrigated virgin soils in different climatic zones. The principle agricultural crops studied were corn and wheat. The impact of furrow and border strip irrigation on soils were positive under arid climatic conditions, but in semi-arid, semi-humid and humid conditions irrigation gradually caused deterioration of soil fertility because of annual leaching of organic matter and exchangeable calcium. Comparison of the same properties of rainfed agricultural soils for the same crops and virgin soil properties did not show significant differences. Thus, irrigation itself can induce changes in soil fertility. Therefore, in semi-arid, semi-humid and humid conditions of Mexico it is appropriate to reduce irrigation water losses. Under humid conditions it is recommended to increase runoff using surface drainage in irrigated and rainfed lands and to improve irrigation technologies. These measures can conserve soil fertility, improve efficiency of water and land resource use, reduce water consumption, increase agricultural productivity, profitability and sustainability over the long-term. Keywords: fertility index, irrigation water quality, soil degradation, radiative climatic index, arid and humid zones, soil properties, percolation IntroductionTraditionally, irrigation water requirements are determined based on the needs of agricultural crops and on the availability and quality of water. Selection of irrigation technology depends on the profitability of agricultural crops, experience and economic state of farmers, availability of water, topographic and climatic conditions of irrigated land and soil physical properties. Irrigation increases agricultural productivity and affects soil properties, and may increase soil fertility, but can reduce it as well. The positive effect of soil irrigation is related to increased soil moisture, resulting in increased microbiological and macro-biological activities in the soil and the accumulation of organic matter (Aidarov, 1985;Baldock et al., 2000;Schjonning et al., 2004;Oriola, 2005). Negative effects of soil irrigation are usually associated with using poor quality water (e.g. saltwater, treated or untreated sewage water), salinity, sodicity or soil contamination, as well as soil erosion. There are different recommendations for reducing the risk of soil and plant contamination to prevent or reclaim soil salinity and sodicity of irriga...

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Evaluation of Soil Fertility Indices of Freshwater Irrigated Soils in Mexico Across Different Climatic Regions

Nikolskii-Gavrilov¹,

Aidarov²,

Landeros-Sánchez³

et al. 2014

JAS

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“…In order to calculate the climatic index for the agricultural sugarcane lands I a j at the beginning and end of the 21 st century, the mean annual value of net radiation Rn a j was determined using the following formula (Allen et al, 2006): An example of such graphs is shown in Figure 1 (Nikol'skii et al, 2010).…”

Section: Methodsmentioning

confidence: 99%

Impact of climate change on rainfed sugarcane in Veracruz, Mexico

Brigido-Morales,

Nikolskii-Gavrilov,

Palacios-Vélez

et al. 2023

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Objective: To estimate the expected quantitative changes of the rainfed sugarcane yield in four sugar mills in the state of Veracruz using climate change scenarios for the end of the 21st century and considering that the same climate change could also affect soil fertility. Design/methodology/approach: The data on the cultivated area with the rainfed sugarcane such as topography, principal properties of soil fertility, crop yields for the beginning of the 21st century, current climatic data from the meteorological stations and future ones based on existing climate change scenarios were analyzed. Then, by means of a physiological model of this crop based on biological, climatic and soil characteristics, proposed by IIASA/FAO, the current and future agricultural productivity of sugarcane was calculated. The actual productivity calculated with this model was compared with the observed data. Then, the productivity of this crop for the end of the 21st century was calculated. The comparative impact on the productivity of the expected changes in some climatic components and corresponding expected modification in soil fertility was assessed. Results: The results of calculations indicate that if the CO2 concentration in the atmosphere increases by 2 or 2.7 times at the end of the 21st century and the current varieties of sugarcane and their crop management will conserve, the yield of sugarcane will decrease up to 20% depending on the climate change scenario and location of the plot. The main climatic factor influencing the decrease in sugarcane productivity is the expected decrease in precipitation. Limitations on study/implications: Monthly average climatic variables are used for both current and future productivity calculations since there are no estimates of daily data. There are also no predictions on the development of crop management technology as well as on the expected change in pests and diseases for the end of the 21st century. Findings/conclusions: The IISA/FAO physiological model of sugarcane growth based on agroecological principles, considering even limited number of climatic variables, is useful for calculating of sugarcane productivity with correlations greater than 90% for calculated and observed data. This allowed us to estimate the expected impact of climate change in the productivity of rainfed sugarcane in Veracruz State of Mexico at the end of 21st century.

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Impact of Long‐term Freshwater Irrigation on Soil Fertility

Nikolskii

Aidarov²,

Landeros-Sánchez

et al. 2019

Irrigation and Drainage

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Irrigation increases agricultural productivity and inevitably affects soil properties. When irrigation water is of a good quality and does not cause soil salinity or sodicity or contamination, and when there is no soil erosion, a gradual increase in soil fertility under irrigation conditions is, as a rule, expected. However, studies in various countries present examples of a gradual decline in soil fertility under long‐term freshwater irrigation due to leaching of organic matter and exchangeable cations. It is known that ploughing and agricultural activities modify natural soil formation processes and soil fertility. Irrigation enhances soil formation processes but also causes soil leaching. This paper presents data on the impact of long‐term freshwater irrigation on soil fertility for different climatic zones of Mexico, assessed by comparing some agrochemical properties of irrigated and non‐irrigated soils. This comparison shows that irrigation generally has a positive effect on soil fertility in arid conditions and a negative effect in semi‐arid, semi‐humid and humid tropical zones. Therefore, when planning and applying irrigation to crops, it is necessary to take into account not only crop water requirements, but also the need to preserve and improve soil fertility. © 2019 John Wiley & Sons, Ltd.

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Assessing the effect of possible global climate changes on the fertility of Mexican soils and the prediction of crop yields

Cited by 7 publications

References 8 publications

Evaluation of Soil Fertility Indices of Freshwater Irrigated Soils in Mexico Across Different Climatic Regions

Evaluation of Soil Fertility Indices of Freshwater Irrigated Soils in Mexico Across Different Climatic Regions

Impact of climate change on rainfed sugarcane in Veracruz, Mexico

Impact of Long‐term Freshwater Irrigation on Soil Fertility

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