trees as recultivation or fitopurification instrument and ... lazdina 031 2014... · Деревья...
TRANSCRIPT
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Trees as recultivation or fitopurification instrument and usage of municipal residues (wastewater sludge and wood ash) for
“rehabilitation” of tree stands
Деревья как инструмент рекультивации и фитоочищения и использование муниципальных остатков (осадки сточных вод и
пепла древесины) для «реабилитации» рощи.
Dagnija Lazdina, Senior Researcher, Silava
Дагния Лаздиня, Старший научный сотрудник, Silava
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Trees on roadsidesSmall trees and bushes along
highways and country roads:
absorb dust and small particles;
slow, absorb, and clean water that runs off the highway, resulting in reduced soil erosion, flood control and cleaner water supplies;
serve as living snow fences, catching snow rather than letting it drift across travel lanes;
provide important pollinator habitat.
Transportation enhancements help by: minimizing necessary roadside
maintenance;
supporting trail construction and tourism;
employing landscaping professionals and County Roadside Managers.
supporting farmers who cultivate and sell plant material.
http://www.alamy.comhttp://biocharfarms.org
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Trees on degraded areas – peat queries
2008
in front - lefted to natural proceses 2008
2013
2013
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Trees on degraded areas – bare sand
2013
in front - lefted to natural proceses 2013
2013
20082008
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Waste water sludge = deposit of plant nutrient elements
http://eurocol.in/euroagri/micro-nutrients.html
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Is waste water sludge = waste?
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Heavy metals
Latvia soils are lacking Cu, Zn and B
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Experiment estasblished 2006 Treatment
First year Second year Third year
Control
Waste water sludge
Mineral fertilizers
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Fourth season - summer
Control - unfertilized
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After six years
Control - unfertilized
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Production
WWS Mineral fertilizer
FSI
WWS Mineral fertilizer
B –birchB-K birch ingrowedP-pineP-K-pine ingrowedMa- black alderE - spruce
Forest in similar growing conditions
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Four years after fertilization with wood ash and mineral fertilizers
specie Mineral fertilizer
Wood ash Mineral fertilizer
Aspen 0 6060 1
Birch 266266 265265 153
Spruce 9 2 2
Pine 22 21 25
mineral fertilizer wood ash mineral fertilizer0
0,2
0,4
0,6
0,8
1
1,2
1,4
1,6
1,8
A B E P
he
igh
t of
tre
es,
m
2007
2013
Mineral fertilizers
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WOOD-EN-MAN (Wood for energy – a contribution to the development of sustainable forest management)
50 t per ha (5 kg m-2) A Vacciniosa turf. mel., B – Myrtillosa turf. mel. un C – Myrtillosa turf. mel. / Caricoso-phragmitosa forest sites.
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WOOD-EN-MAN (Wood for energy – a contribution to the development of sustainable forest management)
l
controlWood ash
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Wood ash in Latvia Агрохимические особенности древесной золы полученной на деревообрабатывающих и энергетических предприятиях Латвии
Игорс Гусаревс, Модрис Окманис, Дагния Лаздиня
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Wood ash – for liming or fertilization?
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Fertilization of damaged forest stands
Control minerals wood ash
damages
60-150 kg K ha-1 (2-4 T wood ash or 150 kg minerals....)
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Fertilizersmēslojums N, kg ha-1 P, kg ha-1 K, kg ha-1
Wood ash 3 tod ha-1 0.7 19.3 164.7
Waste water sludge 10 tod ha-1 324.80 136.00 19.60
1,5 tod ha-1 wood ash + sludge 5 tod ha-1 162.75 77.65 92.15
Biogass production residue 30 t ha 9.75 19.00 70.00
Optimum 100-200 20-40 100-200
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20-09-2011
Wood ash and waste water sludge mixture
cont
rol
dige
stat
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woo
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woo
dash
and
slud
ge
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0
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7 2010 2011 2012 2013
heig
ht, m
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Fertilization of plantations
Amounts of main nutrients applied by fertilisers in plantations
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Resources to extend biomass production (Rancane, Makovskis, Lazdina, Daugaviete, Gūtmane, Berzins. 2014, Agronomy research)
The combined growing of trees and grasses on the
same area, give
possibility to save costs and earn an incomes in
first years, which cover starting expenses.
Reed canary grass,
festulolium, and galega could be successfully
grown for biomass and
seed production between trees rows in the
agroforestry system in Latvia. The use of
different bio-energy and
municipal waste products as fertilisers in general
provided higher biomass
and seed yields.
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Thank You for attention!
Too much!!!
Optimum !!!
Deficiency !!!