Agriculture and Land Use in Lonja Field
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Agriculture and Land Use in Lonja Field Aleksandra Jurišić & Milan Mesić University of Zagreb Faculty of Agriculture Department of General Agronomy Lonjsko Polje Nature Park Lonja Field is the largest protected wetland in Croatia and in the entire Danube basin It covers an area of 505.6 km2 According to the criteria of the Birds Directive of the European Union, the park is an important habitat for birds (Important Birds Area - IBA) Water – the ruler of Lonjsko Polje The basic characteristics are the floods brought about by the increased inputs of the left tributaries of the Sava – the Lonja, the Pakra, Veliki Strug, Mali Strug and the Una Powerful waves of water from the Alps and the Dinaridi Mountains raise the water level of Sava by up to ten metres. In Lonjsko Polje, these water masses overflow into the forests, pastures and meadows and for this reason the cities of Zagreb and Sisak and all the populated areas downstream as far as the confluence with the Danube are saved from inundation. The hydrological and geo-morphological conditions cause great habitat diversity and thus at the same time very great biodiversity over 550 plant species around 250 bird species the animal world is also extremely diverse and interesting DANUBEPARKS - network of protected areas along the Danube River that constitute unique natural areas of ecological, scientific and cultural importance on an international scale Land-use: Agriculture Study of crop production in the Central Sava Basin Goal: To determine the impact of retention on agricultural crop production Hipogley – Lonja field Survey of land use inside and outside of the retentions Representation of some important crop groups Climate Average 1965.-1990. 2007. 2008. 2010. Sum, mm 865 749 659 1284 T, ºC 10,7 12,6 12,5 11,5 Project name: Soil Fertilization Acceptable for Environment Scientific project funded by Ministry of Science, Education and Sports Duration: since 1996 Lead by Prof. dr. sc. Milan Mesic Location and experimental design Soil samples - + Parameters: pH, EC, P2O5, K2O, OM, TN, TC, TS, NO3 , NH4 Patent pending: PCT/HR2011/000021 Rotary Soil Sampling Assembly Water samples - - - Parameters: pH, EC, F , Cl , NO2 , - - 2- 3- + + + NO3 , Br , SO4 , PO4 , Li , Na , K , + 2+ 2+ NH4 , Ca , Mg Plant samples • Maize Parameters: yield, TN, TC, TS • Winter wheat • Soybean • Oilseed rape Soil – spatial variability - horizontal Correlation Soil parameter pH Ukupni N (mg kg-1) - 0,574 *** - -1 N-NO3 (mg kg ) 0,056 NS + -1 N-NH4 (mg kg ) - 0,540 *** Soil – spatial variability - vertical mg N-NO3- / kg mg N-NH4+ / kg 0,0 10,0 20,0 30,0 40,0 50,0 60,0 70,0 80,0 90,0 0,0 3,0 6,0 9,0 12,0 15,0 18,0 21,0 24,0 0 0 25 25 50 50 75 75 100 100 Dubina / cm Dubina 125 125 / cm Dubina 150 150 175 175 200 200 N 0 N 100 N 200 N 300 N 0 N 100 N 200 N 300 Water - Lysimeters Plant The yield of winter wheat (dt) in 2007. 45,0 y = -0,706x2 + 11,096x - 9,3075 40,0 The yield of maize (dt) in 2008. 37,5 R² = 0,9151 35,0 33,3 33,1 80,0 31,0 2 70,3 27,5 y = -1,0996x + 11,724x + 35,465 30,0 R² = 0,6025 70,0 67,5 67,6 The yield23,6 of oilseed rape, 2009. 25,0 63,3 61,8 dt/ha 20,4 60,0 54,5 54,4 20,0 51,4 45,0 15,050,0 42,5 y = -0,8136x2 + 9,3579x + 5,1798 40,0 R² = 0,5762 dt/ha10,0 40,0 35,3 4,3 33,4 35,05,0 3,5 32,2 30,0 31,1 30,00,0 26,3 20,0 24,5 25,3 25,0 dt/ha 10,0 Control1. 20,0 Ca 2. N02. P+ + K 3. N1003. ++ K P N2005. ++ K P N2506. ++ K P 14,3 N1504. ++ K P N3009. ++ K P 15,00,0 13,2 7. N2507. ++ KP + FG 8. N2508. ++ KP + + Z 10,0 1. Control 1. 2. N0 + P + + N02. K P 3. N100 + P + + N1003. K P + + N2005. K P + + N2506. K P 5,0 + + N1504. K P + + N3009. K P 7. N250 + P + FG + N2507. K + P 0,0 + Z+ + Ca N2508. K + P Control 2. N02. P+ + K dolomite 3. N1003. ++ K P N2005. ++ K P N2506. ++ K P 4. N1504. ++ K P N3009. ++ K P 8. N2508. ++ KP + 7. N2507. ++ KP + Phospho-gypsum Agroecosystem of Lonja field is very sensitive Agriculture is a main driver of sustainable development of the Nature park There is a need to explain changes in land use in last 40 years (CLC) and to develop scenarios for the future Based on the results of modelling, we can prevent negative processes University of Zagreb Faculty of Agriculture Department of General Agronomy Participation in different projects related to - agriculture & agroecosystem services - land use & soil protection - water protection from agriculture Thank you for your attention! .