بررسی آزمایشگاهی نقش پوشش گیاهی در تولید رواناب در کرت‌های کوچک تحت چرخه انجماد-ذوب

نوع مقاله : مقالات پژوهشی

نویسندگان

1 دانشگاه تربیت مدرس

2 تربیت مدرّس

3 تربیت مدرس

چکیده

یکی از فرآیندهای تأثیرگذار بر تولید رواناب، چرخه انجماد-ذوب است که بررسی آن با توجه به شرایط توپوگرافی و اقلیمی خاص کشور برای مهار اثرات منفی آن اجتناب­ناپذیر می‌باشد. پژوهش حاضر با هدف بررسی تأثیرپذیری رواناب تولیدی از اثر پوشش گیاهی در کرت­های آزمایشی کوچک و تحت یک چرخه انجماد-ذوب و در شرایط شبیه­سازی باران انجام پذیرفت. برای شبیه­سازی شرایط منطقه بدرانلو واقع در 10 کیلومتری غرب شهرستان بجنورد، با شیب عمومی 20 درصد، چرخه­ای شامل سه روز انجماد و دو روز ذوب و یک واقعه باران با شدت 72 میلی­متر بر ساعت و دوام 30 دقیقه در سه تیمار پوشش گیاهی منطقه مادری خاک صورت پذیرفت. آزمایش­های مربوطه در سه تکرار و در مقایسه با کرت­های آزمایشی شاهد پس از رویاندن دو گونه گندمی و یک گونه علفی در اتاقک­های رشد تا تکمیل نسبی مراحل فنولوژیک و در معرض قرار دادن آن­ها در شرایط انجماد-ذوب انجام گرفت. نتایج پژوهش نشان داد که تیمار گونه­های Medicago sativa، Agropyron trichophorum و Lolium prenne به‌ترتیب 9/2، 7/2 و 6/67 درصد حجم رواناب را نسبت به تیمار شاهد کاهش (05/0>P) دادند. طبق مشاهدات­، قسمت عمده ریشه در دو گونه گندمی A. trichophorum و L. prenne برخلاف گونه پهن‌برگ M. Sativa به­صورت سطحی بوده و احتمالاً سبب چسبندگی بیش‌تر ذرات خاک­دانه و اصلاح ساختمان خاک سطحی شده و در نتیجه میزان تولید حجم رواناب کاهش داشته است. هم­چنین نتایج به­دست آمده بر نقش حفظ و یا احیاء پوشش گیاهی بومی منطقه مادری خاک در مدیریت رواناب تأکید دارد.

کلیدواژه‌ها

عنوان مقاله [English]

Laboratory Study of Vegetation Cover Impact on Runoff Generation in Small Plots under Freezing and Thawing Cycle

نویسندگان [English]

  • M. Hatefi 1
  • S. H. Sadeghi 2
  • R. Efanzadeh 1
  • M. Behzadfar 3
1 Tarbiat Modares University
2 Tarbiat Modares University
3 Tarbiat Modares University
چکیده [English]

Introduction: Freezing-Thawing (FT) cycle is one of the processes that affects runoff generation. It is therefore necessary to control its negative effects due to specific topographic and climatic situation of Iran. However, there is no documented research about positive effects of vegetation cover on controlling detrimental effects of (FT) cycle yet. The present study aimed to explain the affectability of runoff generation from vegetation cover in small experimental plots under FT cycle.
Materials and Methods: In order to conduct this study, the soil was collected from Badranlou region located in 10 km west of Bojnourd in north Khorasan province. In this study, iron plots with Plexiglas walls with high ability to withstand lateral stresses and thermal insulation with dimensions of 0.5×0.5 m and a height of 0.3 m and a gradient of 20 percent in accordance with the general slope of the maternal area of the soil were used. The soil was passed from 4 mm sieve after air drying and then was placed in the prepared plots. Thirty plots were prepared for the entire selected plants species and transferred to the greenhouse and three species of A. trichophorum, M. sativa and L. prenne were planted. The species were then allowed until completing the main part of the phenological stages to maximally mimic the natural conditions governing the region. A FT cycle including three days of freezing and two consequent days of thawing and rainfall simulation with 72 mm h-1 in 30 min in three plots with vegetation cover was formulated similar to the study area situation. The entire experiments were conducted in three replicates. Similar control plots were also arranged for comparison purposes. Runoff components were measured in two minutes (three-time steps after runoff), three minutes (three second steps), five minutes until the end of the incident (three last steps) and five minutes after the end of the event. After measuring and recording the amount of runoff generation at the end of each rain event, the total amount of runoff generation in different treatments of rangeland species under FT cycle was recorded.
Results and Discussion: The result showed that the treated plots of M. sativa, A. trichophorum, and L. prenne significantly (p < 0.05) reduced runoff generation by 0.97, 0.72 and 0.32 times compared with control treatments, respectively. The different effects of L. prenne and A. trichophorum species on runoff generation under the freeze-thaw cycles was confirmed. However, M. sativa did not have significant effect in reducing the amount of runoff generation compared with the control. The effect of FT cycle due to performance of ice lenses and formation of active melting layer in the soil surface was controlled owing to the presence of litter and adhesion of the surface layer of soil under treatments of M.sativa, A.trichophorum and L.Prenne. Besides, according to the measurement unlike the M. sativa, the main parts of root in two gramineae species of A. trichophorum and L. prenne were distributed superficially and caused more cohesion and improvement in soil aggregation. The runoff generation reduced in the presence of L. prenne more than the other two species. Based on the different studies, the percentage of fiber in gramineae species is more than broad-leaved species. Therefore, the presence of more fiber in A. trichophorum and L. prenne litters and subsequently their more resilience can be an effective factor in the relative reduction of runoff generation. In addition, the results of the study showed that the presence of vegetation on the soil surface increased the accumulation of fine grains on the soil surface and, if the soil remains intact, increases the stability of the soil structure. The accumulation of fine crops in the soil creates a large network of small roots in the soil and the soil particles become more adhesive. Due to the presence of the small roots in L. prenne species, there is the soil greater adhesion and further reduction of runoff in the presence of this plant.
Conclusion: The results of this study verified that plant cultivation can have significant effects on reducing runoff. In this regard, Lolium prenne had maximum benefit on reduction of runoff and soil loss induced by FT cycle due to better formation of superficial root system.

کلیدواژه‌ها [English]

  • ice-bound soil
  • mountainous areas
  • runoff coefficient
  • rangeland species

مراجع

Ashrafzadeh M., Erfanzadeh R., and Hosseini Kahnouj H. 2015. Effects of soil chemical properties on forage quality in dry rangelands in the south of Fars Province. Iranian Journal of Range and Desert Research 22(2): 382-391. )In Persian with English abstract)
2- Behzadfar M., Sadeghi S.H.R., and Khanjani M.J. 2013. Application of polyacrylamide in controlling the effect of freezing and thawing cycle in soil runoff generation and soil loss. Iranian Water Research Journal 10(1): 39-47. (In Persian with English abstract)
3- Behzadfar M., Sadeghi S.H.R., Khanjani M.J., and Hazbavi Z. 2012. Effectability of runoff and sediment yield from soils induced by freezing and thawing cycle under simulated rainfall condition. Journal of Water and Soil Resources 2(1): 13-22. (In Persian with English abstract)
4- Behzadfar M., Sadeghi S.H.R., Khanjani M.J., and Hazbavi Z. 2017. Effects of rates and time of zeolite application on controlling runoff generation and soil loss from a soil subjected to a freeze-thaw cycle. International Soil and Water Conservation Research 5(2): 95-101.
5- Burylo M., Rey F., Mathys N., and Dutoit T. 2012. Plant root traits affecting the resistance of soils to concentrated flow erosion. Earth Surface Processes and Landforms 37(14): 1463-1470.
6- Carey S.K., and Pomeroy J.W. 2009. Progress in Canadian snow and frozen ground hydrology, 2003-2007. Canadian Water Resources Journal 34(2): 127-138.
7- Carey S.K., and Woo M.K. 2001. Slope runoff processes and flow generation in a subarctic, subalpine catchment. Journal of Hydrology 253: 110–129.
8- Chu L., Ishikawa Y., Shiraki K., Wakahara T., and Uchiyama Y. 2010. Relationship between forest floor cover percentage and soil erosion rate on the forest floor with an impoverished understory grazed by deer (Cervus Nippon) at Doudaira, Tanzawa mountains. Journal of the Japanese Forest Society 92(5): 261-268.
9- Curaqueo G., Acevedo E., Cornejo P., Seguel A., Rubio R., and Borie F. 2010. Tillage effect on soil organic matter, mycorrhizal hyphae and aggregates in a Mediterranean agroecosystem. Revista de la Ciencia del Suelo Nutricion Vegetal 10(1): 12-21.
10- Donald R.G., Kay B.D., and Miller M.H. 1987. The effect of soil aggregate size on early shoot and root growth of maize (Zea mays L.). Plant and Soil 103(2): 251-259.
11- Edwards L.M., and Burney J.R. 1989. The effect of antecedent freeze-thaw frequency on runoff and soil loss from frozen soil with and without subsoil compaction and ground cover. Canadian Journal of Soil Science 69(4): 799-811.
12- Garcia-Ruiz J. M. 2010. The effects of land uses on soil erosion in Spain: a review. Catena 81(1): 1-11.
13- Genxu W., Tianxu M., Juan C., Chunlin S., and Kewei H. 2017. Processes of runoff generation operating during the spring and autumn seasons in a permafrost catchment on semi-arid plateaus. Journal of Hydrology 550: 307-317.
14- Gray D.H., Sotir R.B. 1996. Biotechnical and soil bioengineering slope stabilization: a practical guide for erosion control. John Wiley and Sons. 359 p.
15- Groffman P.M., Driscoll C.T., Fahey T.J., Hardy J.P., Fitzhugh R.D., and Tierney G.L. 2001. Colder soils in a warmer world: A snow manipulation study in a northern hardwood forest ecosystem. Biogeochemistry 56: 135-150.
16- Gui-Yuan L.I., and Hao-Ming F.A.N. 2014. Effect of freeze-thaw on water stability of aggregates in a black soil of northeast China. Pedosphere 24(2): 285-290.
17- Güllü H., and Khudir A. 2014. Effect of freeze–thaw cycles on unconfined compressive strength of fine-grained soil treated with jute fiber, steel fiber and lime. Cold Regions Science and Technology 106: 55-65.
18- Gyssels G., Poesen J., Bochet E., and Li Y. 2005. Impact of plant roots on the resistance of soils to erosion by water: a review. Progress in Physical Geography 29(2): 189-217.
19- Hayashi M., van der Kamp G., and Schmidt R. 2003. Focused infiltration of snowmelt water in partially frozen soil under small depressions. Journal of Hydrology 270: 214-229.
20- Ishikawa M., Zhang Y., Kadota T., and Ohata T. 2006. Hydrothermal regimes of the dry active layer. Water Resources Research 1: 42(4).
21- Kheirfam H., Sadeghi S.H.R., Zarei Darki B., and Homaee M. 2017. Controlling Rainfall-Induced Soil Loss from Small Experimental Containers through Inoculation of Bacteria and Cyanobacteria. Catena 152: 40-46.
22- Kuchment L.S., Gelfan A.N., and Demidov V.N. 2000. A distributed model of runoff generation in the permafrost regions. Journal of Hydrology 240: 1–22.
23- Kukal S.S., and Sarkar M. 2011. Laboratory simulation studies on splash erosion and crusting in relation to surface roughness and raindrop size. Journal of the Indian Society of Soil Science 59(1): 87-93.
24- Kværnø S.H., and Øygarden L. 2006. The influence of freeze–thaw cycles and soil moisture on aggregate stability of three soils in Norway. Catena 67(3): 175-182.
25- Larsen K.S., Grogan P., Jonasson S., and Michelsen A. 2007. Respiration and microbial dynamics in two subarctic ecosystems during winter and spring thaw: effects of increased snow depth. Arctic, Antarctic, and Alpine Research 39(2): 268-276.
26- Li G.Y., and Fan H.M. 2014. Effect of freeze-thaw on water stability of aggregates in a black soil of northeast China. Pedosphere 24(2): 285–290.
27- Li Q., Liu G.B., and Xu M.G. 2013. Effect of seasonal freeze-thaw on soil anti-scouribility and its related physical property in hilly loess plateau. Transactions of the Chinese Society of Agricultural Engineering 29(17): 105–112.
28- Li S., Niu F., Lai Y., Pei W., and Yu W. 2017. Optimal design of thermal insulation layer of a tunnel in permafrost regions based on coupled heat-water simulation. Applied Thermal Engineering 110: 1264-1273.
29- Liu J., Chang D., and Yu Q. 2016. Influence of freeze-thaw cycles on mechanical properties of a silty sand. Engineering Geology 210: 23-32.
30- McGuire A.D. 2002. Environmental variation, vegetation distribution, carbon dynamics and water/energy exchange at high latitudes. Journal of Vegetation Science 13(3): 301–314.
31- Mikan C.J., Schimel J.P., and Doyle A.P. 2002. Temperature controls of microbial respiration in arctic tundra soils above and below freezing. Soil Biology and Biochemistry 34(11): 1785-1795.
32- Mizugaki S., Nanko K., and Onda Y. 2010. The effect of slope angle on splash detachment in an unmanaged Japanese cypress plantation forest. Hydrological Processes 24(5): 576-587.
33- Nanko K., Mizugaki S., and Onda Y. 2008. Estimation of soil splash detachment rates on the forest floor of an unmanaged Japanese cypress plantation based on field measurements of throughfall drop sizes and velocities. Catena 72(3): 348-361.
34- Oztas T., and Fayetorbay F. 2003. Effect of freezing and thawing processes on soil aggregate stability. Catena 52(1): 1-8.
35- Poesen J., Nachtergaele J., Verstraeten G., and Valentin C. 2003. Gully erosion and environmental change: importance and research needs. Catena 50 (2–4): 91–133.
36- Qi J., Ma W., and Song C. 2008. Influence of freeze–thaw on engineering properties of a silty soil. Cold Regions Science and Technology 53(3): 397-404.
37- Ramos-Scharron C.E., and MacDonald L.H. 2007. Development and application of a GIS-based sediment budget model. Journal of Environmental Management 84(2): 157-172.
38- Sadeghi S.H.R., Raisi M.B., and Hazbavi Z. 2016. Effects of polyacrylamide in controlling of splash erosion from a soil induced freeze-thaw cycle. Journal of Water and Soil 29(6): 1601-1611. (In Persian with English abstract)
39- Sadeghi S.H.R., Sharifi Moghadam E., and Khaledi Darvishan A.V. 2016. Effects of Subsequent Rainfall Events on Runoff and Soil Erosion Components from Small Plots Treated by Vinasse. Catena 138: 1-12.
40- Sekine M., and Nabeshima K. 2011. Effects of vegetation root and leaf on slope erosion caused by a heavy rainfall. Journal of Hydroscience and Hydraulic Engineering 29(2): 17-28.
41- Sheridan G.J., Noske P.J., Lane P.N., and Sherwin C.B. 2008. Using rainfall simulation and site measurements to predict annual interrill erodibility and phosphorus generation rates from unsealed forest roads: Validation against in-situ erosion measurements. Catena 73(1): 49-62.
42- Shinohara Y., Otani S., Kubota T., Otsuki K., and Nanko K. 2016. Effects of plant roots on the soil erosion rate under simulated rainfall with high kinetic energy. Hydrological Sciences Journal 61(13): 2435-2442.
43- Sjursen H., Michelsen A., and Holmstrup M. 2005. Effects of freeze–thaw cycles on microarthropods and nutrient availability in a sub-Arctic soil. Applied Soil Ecology 28(1): 79-93.
44- Spence C., and Woo M.K. 2006. Hydrology of subarctic Canadian Shield: heterogeneous headwater basins. Journal of Hydrology 317(1-2): 138-154.
45- Sun B.Y., Xiao J.B., Li Z.B., Ma B., Zhang L.T., Huang Y.L., and Bai L.F. 2018. An analysis of soil detachment capacity under freeze-thaw conditions using the Taguchi method. Catena 162: 100-107.
46- Wang B., Zheng F.L., and Römkens M.J.M. 2013. Soil erodibility for water erosion: a perspective and Chinese experiences. Geomorphology 187: 1–10.
47- Wang G.Q., Wu B.B., and Zhang L. 2014. Role of soil erodibility in affecting available nitrogen and phosphorus losses under simulated rainfall. Journal of Hydrology 514: 180–191.
48- Wang E., Cruse R.M., Chen X., and Daigh A. 2012. Effects of moisture condition and freeze/thaw cycles on surface soil aggregate size distribution and stability. Canadian Journal of Soil Science 92(3): 529-536.
49- Wang T., Li P., Ren Z., Xu G., Li Z., Yang Y., and Yao J. 2017. Effects of freeze-thaw on soil erosion processes and sediment selectivity under simulated rainfall. Journal of Arid Land 9(2): 234-243.
50- Weaver J.E. 1958. Classification of root systems of forbs of grassland and a consideration of their significance. Ecology 39(3): 393-401.
51- Woo M.K. 2012. Permafrost Hydrology. Springer-Verlag, Berlin Heidelberg, 563p.
52- Yamazaki Y., Kubota J., Ohata T., Vuglinsky V., and Mizuyama T. 2006. Seasonal changes in runoff characteristics on a permafrost watershed in the southern mountainous region of eastern Siberia. Hydrological Processes 20(3): 453-467.
53- Zaimoglu A.S. 2010. Freezing–thawing behavior of fine-grained soils reinforced with polypropylene fibers. Cold Regions Science and Technology 60(1): 63-65.
54- Zhang G.H., Liu B.Y., Nearing M.A., Huang C.H., and Zhang K.L. 2002. Soil detachment by shallow flow. Transactions of the ASAE, 45(2): 351.
55- Zhou Z.C., and Shangguan Z.P. 2005. Soil anti‐scouribility enhanced by plant roots. Journal of Integrative Plant Biology 47(6): 676-682.
56- Zhou Z., Ma W., Zhang S., Mu Y., and Li G. 2018. Effect of freeze-thaw cycles in mechanical behaviors of frozen loess. Cold Regions Science and Technology 146: 9-18.
57- Zuazo V.D., Martinez J.F., Pleguezuelo C.R., Raya A.M., and Rodriguez B.C. 2006. Soil-erosion and runoff prevention by plant covers in a mountainous area (SE Spain): implications for sustainable agriculture. Environmentalist 26(4): 309-319.
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دوره 34، شماره 4 - شماره پیاپی 72
مهر و آبان 1399
صفحه 755-764

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  • تاریخ دریافت: 12 آبان 1397
  • تاریخ بازنگری: 16 فروردین 1399
  • تاریخ پذیرش: 24 فروردین 1399
  • تاریخ اولین انتشار: 01 آبان 1399

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