Giller KE, Corbeels M, Nyamangara J, Triomphe B, Affholder F, Scopel E, Tittonell P (2011) A
research agenda to explore the role of conservation agriculture in African smallholder farming
systems. Field Crop Res 124:468–472
Hagos F, Holden S (2006) Tenure security, resource poverty, public programs, and household plotlevel conservation investments in the highlands of northern Ethiopia. Agric Econ 34(2):183–196
Hayes J, Roth M, Zepeda L (1997) Tenure security, investment and productivity in Gambian
agriculture: a generalized probit analysis. Am J Agric Econ 79(2):369–382
Heckman JJ (1979) Sample selection bias as a specification error. Econometrica 47(1):153–161
Herold P, Roessler R, Willam A, Momm H, Valle Za ´rate A (2010) Breeding and supply chain
systems incorporating local pig breeds for small-scale pig producers in Northwest Vietnam.
Livest Sci 129:63–72
Herrero M, Thornton PK, Notenbaert AM, Wood S, Msangi S, Freeman HA, Bossio D, Dixon J,
van de Steeg J, Lynam J, Parthasarathy Rao P, Macmillan S, Gerard B, McDermott J, Sere ´ C,
Rosegrant MW (2010) Smart investments in sustainable food production: revisiting mixed
crop-livestock systems. Science 327:822–825
Hobbs PR (2007) Conservation agriculture: what is it and why is it important for future sustainable
food production? J Agric Sci 145:127–137
Holden ST, Shiferaw B, Wik M (1998) Poverty, market imperfections and time preferences: of
relevance for environmental policy? Environ Dev Econ 3(01):105–130
Howeler RH, Watananonta W, Wongkasem W, Klakhaeng K, Tran NN (2006) Working with
farmers: the key to achieving adoption of more sustainable cassava production practices on
sloping land in Asia. Acta Hortic 703:79–88
International Society of Soil Science (ISSS) (1996) Terminology for soil erosion and conservation.
ISSS, Wageningen, 313 pp
Kassam A, Friedrich T, Derpsch R, Lahmar R, Mrabet R, Basch G, Gonza ´lez-Sa ´nchez EJ, Serraj R
(2012) Conservation agriculture in the dry Mediterranean climate. Field Crop Res 132:7–17
Kerkvliet BJT (1995) Village-state relations in Vietnam: the effect of everyday politics on
decollectivization. J Asian Stud 54(2):396–418
Kerkvliet BJT (2005) The power of everyday politics: how Vietnamese peasants transformed
national policy. Cornell University Press, New York
Kunaporn S, Wichaidit P, Verasilp T, Hoontrakul K, Eswaran H (1999) An assessment of land
degradation in Thailand Land degradation. In: Second international conference of Department
of Land Development, Khon Kaen University, Khon Kaen
Lal R (1998) Soil erosion impact on agronomic productivity and environment quality. Crit Rev
Plant Sci 17:319–464
Lam NT, Patanothai A, Limpinuntana V, Vityakon P (2005) Land use sustain-ability of composite
swiddening in the uplands of Northern Vietnam: nutrient balances of swidden fields during the
cropping period and changes of soil nutrients over the swidden cycle. Int J Agric Sustain
3:1–12
Lamers M, Anyusheva M, La N, Nguyen VV, Streck T (2011) Pesticide pollution in surface- and
groundwater by paddy rice cultivation: a case study from Northern Vietnam. Clean Soil Air
Water 39(4):356–361
Levis J (1996) Turbidity-controlled suspended sediment sampling for runoff-event load estimation. Water Resour Res 32(7):2299–2310
Lippe M, Thai Minh T, Neef A, Hilger T, Hoffmann V, Lam NT, Cadisch G (2011) Building on
qualitative datasets and participatory processes to simulate land use change in a mountain
watershed of Northwest Vietnam. Environ Model Software 26:1454–1466
Lundgren B (1982) Introduction. Agrofor Syst 1(1):1–4
Lusiana B, Suyamto DA, van Noordwijk M, Mulia R, Joshi L, Cadisch G (2011) User’s perspective on validity of a simulation model for natural resource management. Int J Agric Sustain 9
(2):364–378
Marohn C, Cadisch G (2011) Documentation and manual of the LUCIA model version 1.2, state,
Sep 2011, The Uplands Program (SFB 564), subprojects C4.2/T6, Institute for Plant Production
and Agroecology in the Tropics and Subtropics, University of Hohenheim
276
T. Hilger et al.
research agenda to explore the role of conservation agriculture in African smallholder farming
systems. Field Crop Res 124:468–472
Hagos F, Holden S (2006) Tenure security, resource poverty, public programs, and household plotlevel conservation investments in the highlands of northern Ethiopia. Agric Econ 34(2):183–196
Hayes J, Roth M, Zepeda L (1997) Tenure security, investment and productivity in Gambian
agriculture: a generalized probit analysis. Am J Agric Econ 79(2):369–382
Heckman JJ (1979) Sample selection bias as a specification error. Econometrica 47(1):153–161
Herold P, Roessler R, Willam A, Momm H, Valle Za ´rate A (2010) Breeding and supply chain
systems incorporating local pig breeds for small-scale pig producers in Northwest Vietnam.
Livest Sci 129:63–72
Herrero M, Thornton PK, Notenbaert AM, Wood S, Msangi S, Freeman HA, Bossio D, Dixon J,
van de Steeg J, Lynam J, Parthasarathy Rao P, Macmillan S, Gerard B, McDermott J, Sere ´ C,
Rosegrant MW (2010) Smart investments in sustainable food production: revisiting mixed
crop-livestock systems. Science 327:822–825
Hobbs PR (2007) Conservation agriculture: what is it and why is it important for future sustainable
food production? J Agric Sci 145:127–137
Holden ST, Shiferaw B, Wik M (1998) Poverty, market imperfections and time preferences: of
relevance for environmental policy? Environ Dev Econ 3(01):105–130
Howeler RH, Watananonta W, Wongkasem W, Klakhaeng K, Tran NN (2006) Working with
farmers: the key to achieving adoption of more sustainable cassava production practices on
sloping land in Asia. Acta Hortic 703:79–88
International Society of Soil Science (ISSS) (1996) Terminology for soil erosion and conservation.
ISSS, Wageningen, 313 pp
Kassam A, Friedrich T, Derpsch R, Lahmar R, Mrabet R, Basch G, Gonza ´lez-Sa ´nchez EJ, Serraj R
(2012) Conservation agriculture in the dry Mediterranean climate. Field Crop Res 132:7–17
Kerkvliet BJT (1995) Village-state relations in Vietnam: the effect of everyday politics on
decollectivization. J Asian Stud 54(2):396–418
Kerkvliet BJT (2005) The power of everyday politics: how Vietnamese peasants transformed
national policy. Cornell University Press, New York
Kunaporn S, Wichaidit P, Verasilp T, Hoontrakul K, Eswaran H (1999) An assessment of land
degradation in Thailand Land degradation. In: Second international conference of Department
of Land Development, Khon Kaen University, Khon Kaen
Lal R (1998) Soil erosion impact on agronomic productivity and environment quality. Crit Rev
Plant Sci 17:319–464
Lam NT, Patanothai A, Limpinuntana V, Vityakon P (2005) Land use sustain-ability of composite
swiddening in the uplands of Northern Vietnam: nutrient balances of swidden fields during the
cropping period and changes of soil nutrients over the swidden cycle. Int J Agric Sustain
3:1–12
Lamers M, Anyusheva M, La N, Nguyen VV, Streck T (2011) Pesticide pollution in surface- and
groundwater by paddy rice cultivation: a case study from Northern Vietnam. Clean Soil Air
Water 39(4):356–361
Levis J (1996) Turbidity-controlled suspended sediment sampling for runoff-event load estimation. Water Resour Res 32(7):2299–2310
Lippe M, Thai Minh T, Neef A, Hilger T, Hoffmann V, Lam NT, Cadisch G (2011) Building on
qualitative datasets and participatory processes to simulate land use change in a mountain
watershed of Northwest Vietnam. Environ Model Software 26:1454–1466
Lundgren B (1982) Introduction. Agrofor Syst 1(1):1–4
Lusiana B, Suyamto DA, van Noordwijk M, Mulia R, Joshi L, Cadisch G (2011) User’s perspective on validity of a simulation model for natural resource management. Int J Agric Sustain 9
(2):364–378
Marohn C, Cadisch G (2011) Documentation and manual of the LUCIA model version 1.2, state,
Sep 2011, The Uplands Program (SFB 564), subprojects C4.2/T6, Institute for Plant Production
and Agroecology in the Tropics and Subtropics, University of Hohenheim
276
T. Hilger et al.