Известия Русского географического обществаИзвестия Русского географического общества0869-6071The Russian Academy of Sciences1125010.31857/S0869-6071151145-60Research ArticleRelationship between variability of hydrological and hydrochemical properties of runoff and basin landscape structure in the taiga zoneKhoroshevA. V.avkh1970@yandex.ruLukyanovaA. N.lan22-66-88@mail.ruKositskiyA. G.alexhydro@mail.ruShkolny4D. I.thabigd@gmail.comMoscow Lomonosov State University26022019151145602602201926022019Copyright © 2019,2019<p>The research focuses on dependence of inter-year and inter-seasonal variability of hydrological and hydrochemical properties in lower gauge lines of small rivers on landscape structure of a basin as a whole. We used the example of the Zayachya river (Ustyansky district, Arkhangelsk Region) and basins of its tributaries with different shares of forests and cultivated lands to test the hypothesis that certain regional-specific proportions and neighborhoods of land use types ensure low variability of hydrological and hydrochemical regime. We performed measurements in all seasons in 20132017 in 15 gauge lines. Correlation analysis showed evidence that decrease in forest areas and increase in arable lands and meadows in the deeply dissected agrolandscape results in new emergent properties of the river basins geosystems: waters shift for calcium to magnesium class, amplitudes of hydrochemical properties fluctuations change as well as that of discharge. Agrolandscapes induce decrease of runoff yearly fluctuations and increase of discharge. Forest cover supports natural fluctuations of river hydrochemistry due to sharp difference in mineralization between floods and low water periods. Decrease of forest proportion in a basin up to 30 % and lower causes the contents of hydrocarbonates, calcium and magnesium during spring floods to be similar to high content during low water period despite strong dilution.</p>runoffchemical propertiesagrolandscapevariabilityforest covercultivated areacorrelation analysisстокхимические свойстваагроландшафтизменчивостьлесистостьраспаханностькорреляционный анализ[Avessalomova I. A., Savenko A. V., Horoshev A. V. Landshaftno-geohimicheskaja kontrastnostʼ rechnyh bassejnov kak faktor formirovanija ionnogo stoka // Vestn. MGU. Ser. 5. Geografija. 2013. N 4. S. 3-10.][Alekin O. A. Osnovy gidrohimii. M.: Nedra, 1970. 488 c.][Alexeyevskiy N. I., Kositskiy A. G., Nosan V. V., Khristoforov A. V. Podobiye rek i ih system // Vodniye resursi. 2013. N 6. S. 531-544.][Vinogradov Ju. B., Vinogradova T. A. Sovremennye problemy gidrologii. M.: Akademija, 2008. 320 s.][Korytnyj L. M. Geosistemno-gidrologicheskij podhod k prirodno-hozjajstvennomu rajonirovaniju // Geografija i prirodnye resursy. 1987. N 2. S. 152-158.][Metodika izmerenij massovoj koncentracii kationov ammonija, kalija, natrija, litija, magnija, stroncija, barija i kalʼcija v probah pitʼevyh, prirodnyh (v tom chisle mineralʼnyh) i stochnyh vod metodom kapilljarnogo jelektroforeza s ispolʼzovaniem sistemy kapilljarnogo jelektroforeza «Kapelʼ». M.: Fed. sluzhba po nadzoru v sfere prirodopolʼzovanija, 2000. 36 s.][Molchanov A. A. Optimalʼnaja lesistostʼ. M.: Nauka, 1966. 220 s.][Rukovodstvo po himicheskomu analizu morskih i presnyh vod pri jekologicheskom monitoringe rybohozjajstvennyh vodoemov i perspektivnyh dlja promysla rajonov Mirovogo okeana. M.: Izdatelʼstvo VNIRO, 2003. 202 s.][Fedorov V. N. Landshaftnaja indikacija formirovanija rechnogo stoka. Irkutsk: Izd-vo Instituta geografii im. V. B. Sochavy SO RAN, 2007. 175 s.][Horoshev A. V. Landshaftnaja struktura bassejna r. Zajachʼja (Vazhsko-Severodvinskoe mezhdurechʼe, Arhangelʼskaja oblastʼ). M., 2005. 158 s. Dep. VINITI 27.09.2005 № 1253-V2005. URL: https://istina.msu.ru/publications/book/7864329/ (data obrashhenija 10.06.2018).][Horoshev A. V. Polimasshtabnaja organizacija geograficheskogo landshafta. M.: Tovarishhestvo nauchnyh izdanij KMK, 2016. 416 s.][Tsitsarin G. V., Shmideberg N. A. Gidrohimicheskiy praktikum. Obshchie metodi analiza i obrabotki osnovnih gidrohimicheskih dannih. M.: Izd-vo MGU, 1973. 126 s.][Shaidegger A. Teoreticheskaya geomorfolofiya. М.: Progress, 1964. 452 s.][Diebel M. W., Maxted J. T., Robertson D. M., Han S., Vander Zanden M. J. Landscape planning for agricultural nonpoint source pollution. Reduction III: assessing phosphorus and sediment reduction potential // Environmental Management. 2009. Vol. 43. P. 69-83.][Baker M. E., Weller D. E., Jordan T. E. Improved methods for quantifying potential nutrient interception by riparian buffers // Landscape Ecology. 2006. Vol. 21. P. 1327-1345.][Ryszkowski L. (ed.). Landscape Ecology in Agroecosystems Management. CRC Press, Boca Raton, London, 2002. 366 p.]