Neef A (2008) Integrating participatory elements into conventional research projects: measuring
the costs and benefits. Dev Pract 18(4–5):576–589, http://dx.doi.org/10.1080/
09614520802181632
Neef A, Neubert D (2011) Stakeholder participation in agricultural research projects: a conceptual
framework for reflection and decision-making. Agric Hum Val 28(2):179–194, http://dx.doi.
org/10.1007/s10460-010-9272-z
Neef A, Sangkapitux C, Kirchmann K (2000) Does land tenure security enhance sustainable land
management? Evidence from mountainous regions of Thailand and Vietnam. Institute of
Agricultural Economics and Social Sciences in the Tropics and Subtropics, University of
Hohenheim, Discussion paper No. 2000/2. Stuttgart
Neef A, Heidhues F, Stahr K, Sruamsiri P (2006) Participatory and integrated research in
mountainous regions of Thailand and Vietnam: approaches and lessons learned. J Mt Sci 3
(4):305–324
Nikolic N, Schultze-Kraft R, Nikolic M, Boecker R, Holz I (2008) Land degradation on barren
hills: a case study in northeast Vietnam. Environ Manage 42(1):19–36
Pandey S, van Minh D (1998) A socio-economic analysis of rice production systems in the uplands
of northern Vietnam. Agric Ecosyst Environ 70(2–3):249–258, http://dx.doi.org/10.1016/
S0167-8809(98)00152-2
Pansak W, Hilger TH, Dercon G, Kongkaew T, Cadisch G (2008) Changes in the relationship
between soil erosion and N loss pathways after establishing soil conservation systems in
uplands of Northeast Thailand. Agric Ecosyst Environ 128(3):167–176, http://dx.doi.org/
10.1016/j.agee.2008.06.002
Phillips JD (2003) Sources of nonlinearity and complexity in geomorphic systems. Prog Phys
Geog 27(1):1–23
Pinmanee S, Spreer W, Spohrer K, Ongprasert S, Mu ¨ller J (2011) Development of a low-cost
tensiometer driven irrigation control unit and participatory evaluation of its suitability for
irrigation of lychee trees in Northern Thailand. J Hortic For 3(7):226–230
Precoppe M, Nagle M, Janjai S, Mahayothee B, Mu ¨ller J (2011) Analysis of dryer performance for
the improvement of small-scale litchi processing. Int J Food Sci Technol 46(3):561–569
Reichel M, Triani R, Wellho ¨fer J, Sruamsiri P, Carle R, Neidhart S (in press) Vital characteristics
of litchi (Litchi chinensis Sonn.) pericarp that define postharvest concepts for Thai cultivars.
Food Bioprocess Technol
Roder W, Phengchanh S, Keoboulapha B (1995) Relationships between soil, fallow period, weeds
and rice yield in slash-and-burn systems of Laos. Plant Soil 176:27–36
Roessler R, Drucker AG, Scarpa R, Markemann A, Lemke U, Thuy LT, Valle Za ´rate A (2008)
Using choice experiments to assess smallholder farmers’ preferences for pig breeding traits in
different production systems in North-West Vietnam. Ecol Econ 66(1):184–192
Ro ¨mer MG, Huong PT, Sruamsiri P, Hegele M, Wu ¨nsche JN (2011) Possible physiological
mechanism of premature fruit drop in mango (Magnifera indica L.) in northern Vietnam.
Acta Hortic 903:999–1006
Saint-Macary C, Keil A, Zeller M, Heidhues F, Dung PTM (2010) Land titling policy and soil
conservation in the northern uplands of Vietnam. Land Use Policy 27(2):617–627
Schad I, Roessler R, Neef A, Valle Za ´rate A, Hoffmann V (2011) Group-based learning in an
authoritarian setting? novel extension approaches in Vietnam’s Northern uplands. J Agric Educ
Ext 17(1):85–98
Schad I, Schmitter P, Saint-Macary C, Neef A, Lamers M, Nguyen L, Hilger T, Hoffmann V
(2012) Why do people not learn from flood disasters? Evidence from Vietnam’s northwestern
mountains. Nat Hazards 62(2):221–241
Schipmann C, Qaim M (2010) Spillovers from modern supply chains to traditional markets:
product innovation and adoption by smallholders. Agric Econ 41(3–4):361–371
Schipmann C, Qaim M (2011) Supply chain differentiation, contract agriculture, and farmers’
marketing preferences: the case of sweet pepper in Thailand. Food Policy 36(5):667–677
1 From Challenges to Sustainable Solutions for Upland Agriculture. . .
25
the costs and benefits. Dev Pract 18(4–5):576–589, http://dx.doi.org/10.1080/
09614520802181632
Neef A, Neubert D (2011) Stakeholder participation in agricultural research projects: a conceptual
framework for reflection and decision-making. Agric Hum Val 28(2):179–194, http://dx.doi.
org/10.1007/s10460-010-9272-z
Neef A, Sangkapitux C, Kirchmann K (2000) Does land tenure security enhance sustainable land
management? Evidence from mountainous regions of Thailand and Vietnam. Institute of
Agricultural Economics and Social Sciences in the Tropics and Subtropics, University of
Hohenheim, Discussion paper No. 2000/2. Stuttgart
Neef A, Heidhues F, Stahr K, Sruamsiri P (2006) Participatory and integrated research in
mountainous regions of Thailand and Vietnam: approaches and lessons learned. J Mt Sci 3
(4):305–324
Nikolic N, Schultze-Kraft R, Nikolic M, Boecker R, Holz I (2008) Land degradation on barren
hills: a case study in northeast Vietnam. Environ Manage 42(1):19–36
Pandey S, van Minh D (1998) A socio-economic analysis of rice production systems in the uplands
of northern Vietnam. Agric Ecosyst Environ 70(2–3):249–258, http://dx.doi.org/10.1016/
S0167-8809(98)00152-2
Pansak W, Hilger TH, Dercon G, Kongkaew T, Cadisch G (2008) Changes in the relationship
between soil erosion and N loss pathways after establishing soil conservation systems in
uplands of Northeast Thailand. Agric Ecosyst Environ 128(3):167–176, http://dx.doi.org/
10.1016/j.agee.2008.06.002
Phillips JD (2003) Sources of nonlinearity and complexity in geomorphic systems. Prog Phys
Geog 27(1):1–23
Pinmanee S, Spreer W, Spohrer K, Ongprasert S, Mu ¨ller J (2011) Development of a low-cost
tensiometer driven irrigation control unit and participatory evaluation of its suitability for
irrigation of lychee trees in Northern Thailand. J Hortic For 3(7):226–230
Precoppe M, Nagle M, Janjai S, Mahayothee B, Mu ¨ller J (2011) Analysis of dryer performance for
the improvement of small-scale litchi processing. Int J Food Sci Technol 46(3):561–569
Reichel M, Triani R, Wellho ¨fer J, Sruamsiri P, Carle R, Neidhart S (in press) Vital characteristics
of litchi (Litchi chinensis Sonn.) pericarp that define postharvest concepts for Thai cultivars.
Food Bioprocess Technol
Roder W, Phengchanh S, Keoboulapha B (1995) Relationships between soil, fallow period, weeds
and rice yield in slash-and-burn systems of Laos. Plant Soil 176:27–36
Roessler R, Drucker AG, Scarpa R, Markemann A, Lemke U, Thuy LT, Valle Za ´rate A (2008)
Using choice experiments to assess smallholder farmers’ preferences for pig breeding traits in
different production systems in North-West Vietnam. Ecol Econ 66(1):184–192
Ro ¨mer MG, Huong PT, Sruamsiri P, Hegele M, Wu ¨nsche JN (2011) Possible physiological
mechanism of premature fruit drop in mango (Magnifera indica L.) in northern Vietnam.
Acta Hortic 903:999–1006
Saint-Macary C, Keil A, Zeller M, Heidhues F, Dung PTM (2010) Land titling policy and soil
conservation in the northern uplands of Vietnam. Land Use Policy 27(2):617–627
Schad I, Roessler R, Neef A, Valle Za ´rate A, Hoffmann V (2011) Group-based learning in an
authoritarian setting? novel extension approaches in Vietnam’s Northern uplands. J Agric Educ
Ext 17(1):85–98
Schad I, Schmitter P, Saint-Macary C, Neef A, Lamers M, Nguyen L, Hilger T, Hoffmann V
(2012) Why do people not learn from flood disasters? Evidence from Vietnam’s northwestern
mountains. Nat Hazards 62(2):221–241
Schipmann C, Qaim M (2010) Spillovers from modern supply chains to traditional markets:
product innovation and adoption by smallholders. Agric Econ 41(3–4):361–371
Schipmann C, Qaim M (2011) Supply chain differentiation, contract agriculture, and farmers’
marketing preferences: the case of sweet pepper in Thailand. Food Policy 36(5):667–677
1 From Challenges to Sustainable Solutions for Upland Agriculture. . .
25