Your search found 23 records
1 Toan, T. D.; Phien, T.; Nguyen, L.; Phai, D. D.; Ga, N. V. 2001. Soil erosion management at the watershed level for sustainable agriculture and forestry in Vietnam. In Maglinao, A. R.; Leslie, R. N. (Eds.), Soil erosion management research in Asian catchments: Methodological approaches and initial results - Proceedings of the 5th Management of Soil Erosion Consortium (MSEC) Assembly, held at Semarang, Central Java, Indonesia, 7-11 November 2000. Bangkok, Thailand: IWMI. Southeast Asia Regional Office. pp.233-251.
Erosion ; Evaluation ; Soil management ; Watershed management ; Catchment areas ; Sustainable agriculture ; Forestry ; Data collection ; Climate ; Livestock ; Population ; Villages ; Land tenure ; Hydrology ; Monitoring / Vietnam / Dong Cao Watershed
(Location: IWMI-HQ Call no: IWMI 631.45 G570 MAG Record No: H029258)
2 Phien, T.; Toan, T. D.; Hien, B. H.; Hue, N.; Loc, D. C. 2002. The management of sloping lands for sustainable agriculture in Vietnam. In Penning de Vries, F. (Ed.), The management of sloping lands for sustainable agriculture: ASIALAND Sloping Land Phase 4 – Final report. Bangkok, Thailand: IWMI. pp.315-344.
Land management ; Sustainable agriculture ; Farmers ; Poverty ; Training ; Runoff ; Economic analysis / Vietnam
(Location: IWMI-HQ Call no: IWMI 631.4 G800 PEN Record No: H030765)
3 Bricquet, J. P.; Boonsaner, A.; Phommassack, T.; Toan, T. D.. 2003. Statistical analysis of long series rainfall data: A regional study in Southeast Asia. In IWMI South East Asia, KU – IWMI Seminar on Scientific Cooperation, Kamphol Adulavidhaya Conference Room, Kasetsart University, Bangkok, Thailand, 26 March 2003. pp.111-116.
(Location: IWMI-HQ Call no: IWMI 631.7 G750 IWM Record No: H034257)
(0.35 MB)
4 Phommassack, T.; Agus, F.; Boonsaner, A.; Bricquet, Jean P.; Chantavongsa, A.; Chaplot, V.; Ilao, R. O.; Janeau, Jean L.; Marchand, P.; Toan, T. D.; Valentin, Christian. 2003. Factorial analysis of runoff and sediment yield from catchments in Southeast Asia. In Wani, S. P.; Maglinao, A. R.; Ramakrishna, A.; Rego, T. J. (Eds.), Integrated watershed management for land and water conservation and sustainable agricultural production in Asia: Proceedings of the ADB-ICRISAT-IWMI Project Review and Planning Meeting, 10-14 December 2001, Hanoi, Vietnam. Andhra Pradesh, India; Colombo, Sri Lanka; Manila, Philippines: ICRISAT; IWMI; ADB. pp.163-170.
Catchment areas ; Runoff ; Erosion ; Sedimentation ; Water quality ; Statistical analysis ; Regression analysis / South East Asia / Indonesia / Laos / Philippines / Thailand / Vietnam
(Location: IWMI-HQ Call no: IWMI 333.91 G570 WAN Record No: H034989)
(10.29 MB)
5 Toan, T. D.; Afus, F.; Duque, C. M.; Chanthavongsa, A. 2003. Soil erosion and farm productivity under different land uses. In Wani, S. P.; Maglinao, A. R.; Ramakrishna, A.; Rego, T. J. (Eds.), Integrated watershed management for land and water conservation and sustainable agricultural production in Asia: Proceedings of the ADB-ICRISAT-IWMI Project Review and Planning Meeting, 10-14 December 2001, Hanoi, Vietnam. Andhra Pradesh, India; Colombo, Sri Lanka; Manila, Philippines: ICRISAT; IWMI; ADB. pp.194-197.
(Location: IWMI-HQ Call no: IWMI 333.91 G570 WAN Record No: H034992)
(10.29 MB)
6 Chaplot, Vincent; Boonsaner, A.; Bricquet, Jean P.; de Rouw, Anneke; Janeau, Jean L.; Marchand, Pierre; Phommassack, T.; Toan, T. D.; Valentin, Christian. 2004. Soil erosion under land use change from three catchments in Laos, Thailand and Vietnam. Unpublished report. 6p.
(Location: IWMI-HQ Call no: IWMI 631.45 G784 CHA Record No: H035997)
7 Bricquet, Jean P.; Boonsaner, A.; Bouahom, B.; Toan, T. D.. 2003. Statistical analysis of long-term series rainfall data: a regional study in Southeast Asia. In Maglinao, Amado R.; Valentin, Christian; Penning de Vries, Frits (Eds.), From soil research to land and water management: Harmonizing people and nature – Proceedings of the IWMI-ADB Project Annual Meeting and 7th MSEC Assembly. Bangkok, Thailand: IWMI. pp.83-89.
(Location: IWMI-HQ Call no: IWMI 631.45 G570 MAG Record No: H036265)
(0.27 MB)
8 Chaplot, V.; Chanthavongsa, A.; Agus, F.; Boosaner, A.; Ilao, R. O.; Toan, T. D.; Valentine, Christian; Silvera, Norbert. 2003. Evaluation of environmental factors and soil erosion in MSEC catchments. In Maglinao, Amado R.; Valentin, Christian; Penning de Vries, Frits (Eds.), From soil research to land and water management: Harmonizing people and nature – Proceedings of the IWMI-ADB Project Annual Meeting and 7th MSEC Assembly. Bangkok, Thailand: IWMI. pp.125-134.
Erosion ; Catchment areas ; Environmental effects ; Runoff ; Sedimentation ; Statistical analysis / Laos
(Location: IWMI-HQ Call no: IWMI 631.45 G570 MAG Record No: H036269)
(0.81 MB)
9 Toan, T. D.; Orange, Didier; Podwojewski, Pascal; Phai, D. D.; Phien, T.; Maugin, J.; Rinh, P. V. 2003. Soil erosion and land use in the Dong Cao Catchment in Northern Vietnam. In Maglinao, Amado R.; Valentin, Christian; Penning de Vries, Frits (Eds.). From soil research to land and water management: harmonizing people and nature – Proceedings of the IWMI-ADB Project Annual Meeting and 7th MSEC Assembly. Bangkok, Thailand: IWMI. pp.165-179.
(Location: IWMI-HQ Call no: IWMI 631.45 G570 MAG Record No: H036272)
(0.88 MB)
10 Orange, Didier; Podwojewski, Pascal; Toan, T. D.; Phai, D. D.; Bayer, A.; Phuong, N. D.; Thiet, N. V.; Rinh, P. V.; Koikas, J. 2004. Soil erosion management at the watershed level for sustainable agriculture and forestry in Vietnam. In Annual report 2003. IWMI Southeast Asia Regional Office, Bangkok, Thailand. pp.153-185.
Erosion ; Rain ; Water table ; Soil properties ; Soil management ; Land use ; Watershed management ; Sustainable agriculture ; Forestry / Vietnam
(Location: IWMI-HQ Call no: IWMI 631.4 G570 MAG Record No: H037209)
11 Clement, Floriane; Amezaga, J. M.; Orange, Didier; Toan, T. D.; Large, A. R. G.; Calder, I. R. 2006. Reforestation policies and upland allocation in northern Vietnam: an institutional approach for understanding farmer strategies and land use change. Paper presented at the International Symposium, Towards Sustainable Livelihoods and Ecosystems in Mountainous Regions, Chiang Mai, Thailand, 7-9 March 2006. 17p.
(Location: IWMI-HQ Call no: IWMI 333.75 G784 CLE Record No: H039286)
12 Toan, T. D.; Orange, Didier; Podwojewski, Pascal; Phai, D. D.; Phien, T. 2003. Erosion control within a cultivated sloping land in North Vietnam. Paper presented at China Symposium 2 – Soil quality and evolution mechanism and sustainable use of soil resources, ISSAS, Yingtan, Jiangxi Province, China, September 23-28, 2003. 16p.
(Location: IWMI-HQ Call no: IWMI 631.45 G784 TOA Record No: H039290)
13 Ha, P. Q.; Thiet, N. V.; Orange, Didier; Toan, T. D.; Pomel, S. 2006. Inventaire des techniques de culture dans les montagnes du Nord Vietnam. In French. [Assessment of Agricultural practices in the mountains of Northern Vietnam]. In Proceedings of the 14th Conference of ISCO, International Soil Conservation Organisation, Marrakech, Morocco, 14-19 May 2006. 8p.
(Location: IWMI-HQ Call no: IWMI 631.45 G784 HA Record No: H039291)
14 Podwojewski, P.; Toan, T. D; Agus, F.; Alamban, R.; Boonsaner, A.; deRouw, A. 2005. Effects of innovative agriculture systems on soil protection and erosion at a water-catchment level in 5 countries of SE Asia. In Kheoruenromne, I.; Riddell, J. A.; Soitong, K. (Eds.). Proceedings of SSWM 2004 International Conference on Innovative Practices for Sustainable Sloping Lands and Watershed Management, Chiang Mai Hill Hotel, Chiang Mai, Thailand, 5-9 September 2004. Bangkok, Thailand: Department of Agricultural Extension. pp.173-191.
Soil management ; Erosion ; Runoff ; Catchment areas ; Soil properties ; Land use ; Cropping systems / South East Asia
(Location: IWMI HQ Call no: IWMI 631.45 G800 POD, 333.91 G570 KHE Record No: H040245)
15 Orange, Didier; Phan, Ha Hai An; Lequeux, Brice; Henry des Tureaux, Thierry; Pham, Van Rinh; Toan, T. D.. 2007. Charges de fond et suspensions transportees par les eaux d’ecoulement dans un petit bassin versant agricole sur pentes dans le Nord Vietnam. Gestion integree des eaux et des sols : ressources, amenagements et risques en milieux ruraux et urbains, Editions AUF et IRD, Hanoi, Actes des Premieres Journees Scientifiques Inter- Reseaux de l’AUF, Hanoi, 6-9 novembre 2007; Paper presented at Conference, Integrated Management of Waters and Soils: resources, infrastructures and risks in rural and urban areas, Hanoi, Vietnam, 6-9 November 2007. 6p.
(Location: IWMI HQ Call no: 333.91 G784 ORA Record No: H040807)
A small agricultural watershed on sloping lands (around 50 ha) in Northern Vietnam is equipped with 5 runoff measurement stations named weir. Each weir is representative of one vegetation cover (forest, fodder, cassava and old fallow). There is no relationship between bed load and rainfall amount due to a threshold process, but it is directly linked to the vegetation cover. In 2006, bed load losses are quite much important on the cassava crop (879 kg/ha/yr) than at the other weirs: 131 kg/ha/yr for old fallow, 83 kg/ha/yr for pluriannual plantation and 52 kg/ha/yr for forest. From some event measurements, the mean suspended load during the rising peak was a range 0.4-2.9 g/l with a SM peak around 3 to 8 g/l; the suspended load during the base flow was around 10-20 mg/l. It is impossible to predict the SM load with the discharge. For each weir, the best correlation is between SM load and Rindex emphasizing the duration and the amount of the rain event. The calculation of suspended load confirms the soil loss by suspended load is much more important than by bed load, even if the 95% of suspended load occurs during the peak events. On the whole watershed, the erosion amount by suspended load is 1.2 t/ha for 0.6 t/ha for bed load. More trees are in the basin, less is the suspended load; and at the opposite, the agricultural practices increase the amount of suspended load.
16 Podwojewski, P.; Orange, Didier; Jouquet, Pascal; Valentin, C.; Nguyen, V. T.; Janeau, J. L.; Toan, T. D.. 2008. Land-use impacts on surface runoff and soil detachment within agricultural sloping lands in northern Vietnam. Catena, 74:109-118.
Surface runoff ; Land use ; Sloping land ; Cassava ; Eucalyptus ; Fodder ; Environmental degradation ; Catchment areas ; Soil properties ; Vegetation / Vietnam
(Location: IWMI HQ Call no: IWMI 631.4 G784 POD Record No: H041496)
17 Clement, Floriane; Amezaga, J. M.; Orange, Didier; Calder I. R.; Large, A. R. G.; Toan, T. D.. 2008. Linking reforestation with forest policies: a multi-scale and interdisciplinary methodology applied to Vietnam. Paper prepared for the 12th Biennial Conference of the IASC, Cheltenham, UK, 14-18 July 2008. 29p.
Reforestation ; Forest policy ; Land management ; Land use ; Common property ; Natural resources management ; Corporate culture ; Decision making ; Governance / Vietnam
(Location: IWMI HQ Call no: IWMI 333.75 G784 CLE Record No: H041546)
http://dlc.dlib.indiana.edu/archive/00003768/01/Clement_108301.pdf
https://vlibrary.iwmi.org/pdf/H041546.pdf
https://vlibrary.iwmi.org/pdf/H041546.pdf
18 Phai, D. D.; Orange, Didier; Migraine, J. B.; Toan, T. D.; Vinh, N. C. 2007. Applying GIS-assisted modelling to predict soil erosion for a small agricultural watershed within sloping lands in Northern Vietnam. In Gebbie, L.; Glendinning, A.; Lefroy-Braun, R.; Victor, M. (Eds.). Proceedings of the International Conference on Sustainable Sloping Lands and Watershed Management: Linking Research to Strengthen upland Policies and Practices, National Agriculture and Forestry Research Institute of Lao PDR (NAFRI), Vientiane, Lao PDR, 2007. Vientiane, LAO PDR: National Agriculture and Forestry Research Institute of Lao PDR (NAFRI) pp.212-228.
(Location: IWMI HQ Call no: IWMI 333.91 G784 PHA Record No: H041518)
19 Valentin, Christian; Boosaner, A.; de Guzman, T.; Phachomphonh, K.; Subagyono, K.; Toan, T. D.. 2007. Impact of innovative land management practices on annual runoff and soil loss from 27 catchments in Southeast Asia. In Gebbie, L.; Glendinning, A.; Lefroy-Braun, R.; Victor, M. (Eds.). Proceedings of the International Conference on Sustainable Sloping Lands and Watershed Management: Linking Research to Strengthen upland Policies and Practices, National Agriculture and Forestry Research Institute of Lao PDR (NAFRI), Vientiane, Lao PDR, 2007. Vientiane, LAO PDR: National Agriculture and Forestry Research Institute of Lao PDR (NAFRI) pp.3-20.
Land management ; Runoff ; Erosion ; Catchment areas ; Land use / South East Asia / Laos / Vietnam / Philippines / Indonesia / Thailand
(Location: IWMI HQ Call no: IWMI 333.91 G800 VAL Record No: H041513)
http://www.nafri.org.la/documents/SSLWM/SSLWMpapers/chapter1/Ch1_01_Valentine.pdf
https://vlibrary.iwmi.org/pdf/H041513.pdf
https://vlibrary.iwmi.org/pdf/H041513.pdf
20 Van Thiet, N.; Pomel, S.; Pham Quang, H.; Toan, T. D.; Orange, Didier. 2008. Ung Dung Phuong phap phan tich hinh anh de danh gia xoi mon dat. In Vietnamese. [Optical analysing techniques for soil erosion evaluation.]. Sciences and Technology Journal of Agriculture and Rural Development, 7(7):42-46.
(Location: IWMI HQ Call no: e-copy only Record No: H042827)
(9.97 MB)
Optical analysing technique is recently developed for soil erosion evaluation with high resolution digital camera with use of software programs such as Optilab Pro. This paper reports results from a study in Dong Cao (Luong Son, Hoa Binh, Vietnam). Results were obtained on digital images analysis from two Sub-Catchment (W2, W3) with 28 plots. The results indicated a range of soil loss of 937 to 1553 kg per ha for W2 and 1225 to 2050 kg per ha for W3. The difference of soil erosion was mainly due to the difference of cover crops. Linear regression was made and it showed a very closed correlation between conventional and optical methoda in soil erosion study. In terms of the absolute value, optical method showed a higher value than the conventional one. The reason may be due to the optical theoretical method calculated the maximum soil moved from the site (eroded) while the conventional experimental method measured the soil erosion collected in experiment weir. In long term, with more data, this optical method should be further checked and recalibrated for other types of soil covers and soil topography for the use in larger scales.
Powered by DB/Text WebPublisher, from
