بررسی تأثیر تغییر کاربری اراضی بر ویژگی‌های فیزیکی، شیمیایی و بیولوژیکی خاک (مطالعه موردی در منطقه لوشان، استان گیلان)

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه خاکشناسی، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران.

2 گروه خاکشناسی، دانشکده کشاورزی، دانشگاه زنجان، زنجان، ایران

چکیده

تغییر کاربری اراضی به طور مستقیم و غیرمستقیم بر ویژگی‌های خاک تأثیر می‌گذارد که این امر می‌تواند اثرات قابل توجهی بر روی سلامت خاک و بهره‌وری کشاورزی داشته باشد. این مطالعه با هدف بررسی تغییرات ویژگی‌های فیزیکی، شیمیایی و بیولوژیکی خاک، در نتیجه تغییر کاربری اراضی از بایر به شالیزار و باغ زیتون در منطقه لوشان استان گیلان صورت گرفته است. نتایج نشان داد که تغییر کاربری اراضی به شالیزار و باغ زیتون منجر به ایجاد تغییرات قابل توجهی در ویژگی‌های خاک شده است که بیشتر این تغییرات در جهت مثبت بوده و سبب بهبود ویژگی‌های کیفی خاک شده است. در بخش ویژگی‌های فیزیکی، تغییر کاربری به شالیزار و باغ زیتون موجب افزایش درصد رس و سیلت و کاهش میزان شن نسبت به اراضی بایر گردید. میانگین وزنی قطر خاک‌دانه‌ها نیز به‌طور قابل‌توجهی افزایش یافت، به‌طوری‌که مقدار آن در باغ زیتون 73/3 برابر و در شالیزار 53/1 برابر زمین بایر بود. ویژگی‌های شیمیایی خاک نیز تحت تأثیر مثبت تغییر کاربری قرار گرفتند. مقدار کربن آلی، نیتروژن کل و عناصر غذایی مانند فسفر و پتاسیم، به‌طور معناداری افزایش یافتند. برای مثال، مقدار کربن آلی در شالیزار حدود 9/3 برابر و در باغ زیتون حدود 8/2 برابر زمین بایر بود. در سطح بیولوژیکی، شاخص‌هایی مانند کربن زیست‌توده میکروبی به‌طور محسوسی افزایش یافت، به‌طوری‌که کربن زیست‌توده میکروبی در شالیزار حدود 4 برابر و در باغ زیتون نزدیک به 3 برابر زمین بایر بود. در مجموع، نتایج پژوهش بیانگر آن است که تغییر کاربری از بایر به شالیزار و باغ زیتون موجب بهبود ویژگی‌های فیزیکی، شیمیایی و بیولوژیکی خاک شده و نقش مؤثری در ارتقاء سلامت خاک، افزایش بهره‌وری کشاورزی و پایداری منابع طبیعی ایفا می‌کند. 

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Assessment of the Impact of Land Use Change on Soil Physical, Chemical, and Biological Properties: A Case Study in the Loshan Region, Guilan Province

نویسندگان [English]

  • Samira Hemmati 1
  • Kamran Moravej 2
  • Ahmad Golchin 2
  • Mohammad Sadegh Askari 2
1 Department of Soil Science, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
2 Department of Soil Science, Faculty of Agriculture, University of Zanjan, Zanjan, Iran
چکیده [English]

Land use change can significantly influence soil properties, both directly and indirectly, with important implications for soil health and agricultural productivity. This study aimed to assess the effects of converting barren land into paddy fields and olive orchards on soil physical, chemical, and biological properties in the Loshan region of Guilan Province, Iran. The results showed that land use change led to notable improvements in soil quality. Physically, the conversion increased clay and silt content while decreasing sand content compared to barren land. The mean weight diameter of soil aggregates increased significantly 3.73 times in olive orchards and 1.53 times in paddy fields indicating improved soil structure. Chemically, soil fertility improved. The levels of organic carbon, total nitrogen, and key nutrients such as Phosphorus and Potassium were significantly higher in the cultivated lands. Organic carbon content was approximately 3.9 times higher in paddy fields and 2.8 times higher in olive orchards than in barren soils. Biologically, the soil's microbial activity increased. Microbial biomass carbon rose nearly fourfold in paddy fields and nearly threefold in olive orchards. In summary, converting barren land to paddy fields and olive orchards positively affected soil health by improving its physical, chemical, and biological properties, thus supporting higher agricultural productivity and long-term natural resource sustainability.

کلیدواژه‌ها [English]

  • Olive Orchard
  • Land Use Change
  • Paddy Field
  • Soil Organic Carbon
  • Soil Properties

Objective

Land use change is a key factor that significantly influences the physical, chemical, and biological properties of soil, potentially enhancing or degrading soil quality and agricultural productivity. This study aimed to investigate the effects of converting barren lands into olive orchards and rice paddies on various soil characteristics in the Loshan region of Guilan Province, northern Iran. The main focus was placed on assessing soil organic carbon stock along with other indicators of soil health and fertility.

Methodology

To evaluate the impact of land use change, soil samples were collected from three land use types—barren lands, olive orchards, and rice paddies—at a depth of 30 cm. A range of soil properties was measured using standard laboratory methods. These included organic matter content, nutrient levels (nitrogen, phosphorus, potassium), aggregate stability, microbial biomass carbon. The collected data were statistically analyzed to compare soil characteristics among the different land uses and determine significant changes.

Findings

The results revealed that converting barren land into agricultural uses—specifically olive orchards and rice paddies—led to substantial improvements in key soil properties. Organic matter content increased from 0.46% in barren soils to 1.30% in olive orchards and 1.79% in rice paddies. Total nitrogen levels and microbialactivity significantly increased in rice paddies, while olive orchards showed notable improvements in aggregate stability and cation exchange capacity.
Furthermore, both rice paddies and olive orchards exhibited enhanced biological activity, as evidenced by higher microbial biomass carbon, indicating more active microbial communities and faster decomposition of organic matter. Improvements in soil physical structure were also observed, including aggregate stability in cultivated lands compared to barren soils. These positive changes suggest that land use conversion simultaneously benefits the physical, chemical, and biological dimensions of soil health.

Conclusion

The transformation of barren land into rice paddies and olive orchards results in meaningful enhancements in soil quality. These improvements include higher organic matter and nutrient content, improved soil structure, increased biological activity, and greater soil organic carbon storage all of which contribute to increased agricultural productivity and long-term sustainability of farming systems. Therefore, strategic and informed land use planning is recommended as an effective approach to improve soil health, conserve natural resources, and mitigate the impacts of climate change.

Author Contributions

Conceptualization, K.M. and A.G.; Methodology, K.M.; software, S.H.; validation, S.H., M.S.A. and K.M.; Formal Analysis, S.H.; Investigation, S.H.; Resources, S.H.; Data Curation, A.G.; Writing—Original Draft Preparation, S.H.; Writing—Review and Editing, A.G.; Visualization, S.H.; Supervision, K.M.; Project Administration, A.G.; Funding Acquisition, S.H. All authors have read and agreed to the published version of the manuscript.”

All authors contributed equally to the conceptualization of the article and writing of the original and subsequent drafts.

Data Availability Statement

Data available on request from the authors.

Acknowledgements

The authors would like to thank all participants of the present study.

Ethical considerations

The study was approved by the Ethics Committee of the University of Zanjan. The authors avoided data fabrication, falsification, plagiarism, and misconduct

Conflict of interest

The author declares no conflict of interest.

مراجع

Ahmadi Vand, M., Zamani Babgaheri, J., Shekofta, H., & Abbaszadeh Afshar, F. (2023). The effect of land use on some physical and chemical properties of soil. Environmental Erosion Research Journal, 13(2), 210–234. (In Persian).
Alef, K. and P. Nannipieri. (1995). Methods in Applied Soil Microbiological and Biochemistry. Academic Press INC.
Anderson, J. P. (1982). Soil respiration. Methods of soil analysis: part 2 chemical and microbiological properties, 9, 831-871.
Arunrat, N., Sereenonchai, S., Kongsurakan, P., & Hatano, R. (2022). Assessing soil organic carbon, soil nutrients and soil erodibility under terraced paddy fields and upland rice in Northern Thailand. Agronomy, 12(2), 537.
Beheshti, A. A. A., Raiesi, F., & GOLCHIN, A. (2011). The effects of soil disturbance due to land use change of forest lands to cultivated lands on biological soil quality indices of forest ecosystems of Northern Iran.
Beillouin, D., Corbeels, M., Demenois, J., Berre, D., Boyer, A., Fallot, A., ... & Cardinael, R. (2023). A global meta-analysis of soil organic carbon in the Anthropocene. Nature Communications, 14(1), 3700.
Buraka, T., Elias, E., & Lelago, A. (2022). Soil organic carbon and its' stock potential in different land-use types along slope position in Coka watershed, Southern Ethiopia. Heliyon, 8(8).
Chen, S., Zhang, G., Zhu, P., Wang, C., & Wan, Y. (2023). Impact of land use type on soil erodibility in a small watershed of rolling hill northeast China. Soil and Tillage Research, 227, 105597.
Cotrufo, M. F., Haddix, M. L., Kroeger, M. E., & Stewart, C. E. (2022). The role of plant input physical-chemical properties, and microbial and soil chemical diversity on the formation of particulate and mineral-associated organic matter. Soil Biology and Biochemistry, 168, 108648.
de Pierri Castilho, S. C., Cooper, M., Dominguez, A., & Bedano, J. C. (2016). Effect of land use changes in eastern amazonia on soil chemical, physical, and biological attributes. Soil Science, 181(3/4), 133-147.
Gao, H., Gong, J., Liu, J., & Ye, T. (2024). Effects of land use/cover changes on soil organic carbon stocks in Qinghai-Tibet plateau: A comparative analysis of different ecological functional areas based on machine learning methods and soil carbon pool data. Journal of Cleaner Production, 434, 139854.
Gava, C. A. T., Giongo, V., Signor, D., & Fernandes‐Júnior, P. I. (2022). Land‐use change alters the stocks of carbon, nitrogen, and phosphorus in a Haplic Cambisol in the Brazilian semi‐arid region. Soil Use and Management, 38(1), 953-963.
Geremew, B., Tadesse, T., Bedadi, B., Gollany, H. T., Tesfaye, K., & Aschalew, A. (2023). Impact of land use/cover change and slope gradient on soil organic carbon stock in Anjeni watershed, Northwest Ethiopia. Environmental Monitoring and Assessment, 195(8), 971.
Golchin, A., & Asgari, H. (2008). Land use effects on soil quality indicators in north-eastern Iran. Soil Research, 46(1), 27-36.
Hartemink, A. E., Veldkamp, T., & Bai, Z. (2008). Land cover change and soil fertility decline in tropical regions. Turkish Journal of Agriculture and Forestry, 32(3), 195-213.
Hayashi, K. (2022). Nitrogen cycling and management focusing on the central role of soils: A review. Soil Science and Plant Nutrition, 68(5-6), 514-525.
Hesse P.R. 1971. A text book of soil chemical analysis. John Murray. London
Heydari, N., Mousavi, S. B., Beheshti Al Agha, A., Rakhsh, F., & Karimi, E. (2022). The effect of land use change on some physical, chemical, and biological properties of soil. Iranian Journal of Soil and Water Research, 53(7), 1625–1643. (In Persian).
Iheshiulo, E. M. A., Larney, F. J., Hernandez-Ramirez, G., Luce, M. S., Liu, K., & Chau, H. W. (2023). Do diversified crop rotations influence soil physical health? A meta-analysis. Soil and Tillage Research, 233, 105781.
Jiang, B., Jianlin, S. H. E. N., Minghong, S. U. N., Yajun, H. U., Jiang, W., Juan, W. A. N. G., ... & Jinshui, W. U. (2021). Soil phosphorus availability and rice phosphorus uptake in paddy fields under various agronomic practices. Pedosphere, 31(1), 103-115.
Jiang, W., Li, Z., Xie, H., Ouyang, K., Yuan, H., & Duan, L. (2023). Land use change impacts on red slate soil aggregates and associated organic carbon in diverse soil layers in subtropical China. Science of The Total Environment, 856, 159194.
Joshi, R. K., & Garkoti, S. C. (2023). Influence of vegetation types on soil physical and chemical properties, microbial biomass and stoichiometry in the central Himalaya. Catena, 222, 106835.
Khormali, F., Ajami, M., Ayoubi, S., Srinivasarao, C., & Wani, S. P. (2009). Role of deforestation and hillslope position on soil quality attributes of loess-derived soils in Golestan province, Iran. Agriculture, ecosystems & environment, 134(3-4), 178-189.
Knudsen D., Peterson G.A. and Pratt P.F. (1982). Lithium, sodium and potassium. p. 225-246. In: A.L. Page (ed) Methods of Soil Analysis. Part 2. America Society of Agronomy. Madison, WI.
Kumar, A., Padbhushan, R., Singh, Y. K., Kohli, A., and Ghosh, M. (2021). Soil Organic Carbon under Various Land Uses in Alfisols of Eastern India. Indian J. Agril. Sci. 91 (7), 975–979.
Lai, X., Zhu, Q., Zhou, Z., Liao, K., & Lv, L. (2020). Optimizing the spatial pattern of land use types in a mountainous area to minimize non-poinشt nitrogen losses. Geoderma, 360, 114016.
Levy, G. J., Dag, A., Raviv, M., Zipori, I., Medina, S., Saadi, I., ... & Laor, Y. (2018). Annual spreading of olive mill wastewater over consecutive years: Effects on cultivated soils' physical properties. Land Degradation & Development, 29(1), 176-187.
Li, C., Wang, H., Zhao, L., & Shen, H. (2024). Effect of long-term land use change on soil organic carbon fractions and functional groups. Arid Land Research and Management, 38(2), 182-200.
Liu, Z., Cao, S., Sun, Z., Wang, H., Qu, S., Lei, N., ... & Dong, Q. (2021). Tillage effects on soil properties and crop yield after land reclamation. Scientific Reports, 11(1), 4611.
Malik, A. A., Puissant, J., Buckeridge, K. M., Goodall, T., Jehmlich, N., Chowdhury, S., ... & Griffiths, R. I. (2018). Land use driven change in soil pH affects microbial carbon cycling processes. Nature communications, 9(1), 3591.
Manik, S. N., Pengilley, G., Dean, G., Field, B., Shabala, S., & Zhou, M. (2019). Soil and crop management practices to minimize the impact of waterlogging on crop productivity. Frontiers in plant science, 10, 140.
McGrath, D. A., Smith, C. K., Gholz, H. L., & Oliveira, F. D. A. (2001). Effects of land-use change on soil nutrient dynamics in Amazonia. Ecosystems, 4, 625-645.
Mendoza, B., Béjar, J., Luna, D., Osorio, M., Jimenez, M., and Melendez, J. R. (2020). Differences in the Ratio of Soil Microbial Biomass Carbon (MBC) and Soil Organic Carbon (SOC) at Various Altitudes of Hyperalic Alfisol in the Amazon Region of Ecuador. F1000Res 9, 443. doi:10.12688/f1000research.22922.1.
Nanganoa, L. T., Okolle, J. N., Missi, V., Tueche, J. R., Levai, L. D., & Njukeng, J. N. (2019). Impact of Different Land‐Use Systems on Soil Physicochemical Properties and Macrofauna Abundance in the Humid Tropics of Cameroon. Applied and Environmental Soil Science, 2019(1), 5701278.
Padbhushan, R., Kumar, U., Sharma, S., Rana, D. S., Kumar, R., Kohli, A., ... & Gupta, V. V. (2022). Impact of land-use changes on soil properties and carbon pools in India: A meta-analysis. Frontiers in Environmental Science, 9, 794866.
Padbhushan, R., Sharma, S., Rana, D. S., Kumar, U., Kohli, A., and Kumar, R. (2020). Delineate Soil Characteristics and Carbon Pools in Grassland Compared to Native Forestland of India: A Meta-Analysis. Agronomy 10, 1969. doi:10.3390/agronomy10121969
Palihakkara, J., Burkitt, L., Jeyakumar, P., & Attanayake, C. P. (2024). Exploring Phosphorus Dynamics in Submerged Soils and Its Implications on the Inconsistent Rice Yield Response to Added Inorganic Phosphorus Fertilisers in Paddy Soils in Sri Lanka. Journal of Soil Science and Plant Nutrition, 24(1), 1-20.
Rabbi, S. M. F., Tighe, M., Delgado-Baquerizo, M., Cowie, A., Robertson, F., Dalal, R., ... & Baldock, J. (2015). Climate and soil properties limit the positive effects of land use reversion on carbon storage in Eastern Australia. Scientific Reports, 5(1), 17866.
Schroeder, J., Peplau, T., Pennekamp, F., Gregorich, E., Tebbe, C. C., & Poeplau, C. (2024). Deforestation for agriculture increases microbial carbon use efficiency in subarctic soils. Biology and Fertility of Soils, 60(1), 17-34.
Tellen, V. A., & Yerima, B. P. (2018). Effects of land use change on soil physicochemical properties in selected areas in the North West region of Cameroon. Environmental systems research, 7(1), 1-29.
Tiefenbacher, A., Sandén, T., Haslmayr, H.-P., Miloczki, J., Wenzel, W., and Spiegel, H. (2021). Optimizing Carbon Sequestration in Croplands: A Synthesis. Agronomy 11 (5), 882. doi:10.3390/agronomy11050882
Torres, J. L. R., Costa, D. D. D. A., Silveira, B. D. S., Vieira, D. M. D. S., & Lemes, E. M. (2020). Soil physical attributes in long-term soil management systems (Tillage and No-till). Journal of Agricultural Science, 12(4), 194.
Walkley A. and Black I.A. (1934). An examination of Degtjareff method for determining soil organic matter and a proposed modification of the chromic acid titration method. Soil Science, 37: 29-37.
Wang, H., Zhang, G. H., & Wang, J. (2022). Plant community near-surface characteristics as drivers of soil erodibility variation along a slope gradient in a typical semiarid region of China. Catena, 212, 106108.
Xia, S., Song, Z., Yu, B., Fan, Y., Tony, V., Guo, L., ... & Wang, H. (2024). Land use changes and edaphic properties control contents and isotopic compositions of soil organic carbon and nitrogen in wetlands. Catena, 241, 108031.
Xiong, J., Shao, X., Li, N., Yuan, H., Liu, E., & Wu, M. (2024). Effects of land-use on soil C, N, and P stocks and stoichiometry in coastal wetlands dependent on soil depth and latitude. Catena, 240, 107999.
Yuan, J., Yao, Y., Guan, Y., Sadiq, M., Li, J., Liu, S., ... & Yan, L. (2024). Effects of land use patterns on soil properties and nitrous oxide flux on a semi-arid environmental conditions of Loess Plateau China. Global Ecology and Conservation, 51, e02899.
Yuefeng, G., Fucang, Q., Yunfeng, Y. A. O., & Wei, Q. I. (2014). Effects of land use changes on soil organic carbon and soil microbial biomass carbon in low hills of North Yanshan Mountains. Range Management and Agroforestry, 35(1), 15-21.
Zakavi, N., Karimi, A., & Sheini Dashtegol, A. (2021). Influence of Flooding and Waterlogging Conditions on Soil Chemical Characteristics and Nutrient Status (Case Study: Hakim Farabi Agro-industry). Iranian Journal of Soil and Water Research, 52(6), 1617-1627.
Zhang, W., Xu, Y., Gao, D., Wang, X., Liu, W., Deng, J., ... & Ren, G. (2019). Ecoenzymatic stoichiometry and nutrient dynamics along a revegetation chronosequence in the soils of abandoned land and Robinia pseudoacacia plantation on the Loess Plateau, China. Soil Biology and Biochemistry, 134, 1-14.
Zhu, Z., Chen, J., Hu, H., Zhou, M., Zhu, Y., Wu, C., ... & Wang, J. (2024). Soil quality evaluation of different land use modes in small watersheds in the hilly region of southern Jiangsu. Ecological Indicators, 160, 111895.
Zipori, I., Erel, R., Yermiyahu, U., Ben-Gal, A., & Dag, A. (2020). Sustainable management of olive orchard nutrition: A review. Agriculture, 10(1), 11.
تحقیقات آب و خاک ایران
دوره 56، شماره 8
آبان 1404
صفحه 2179-2197

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