Dear Yousuf Kurniawan,

I hope the following references/ links – maybe of some assistance.

Kind regards,

Paul Chaney

Cortus, Brett G.; Jeffrey, Scott R.; Unterschultz, James R.; Boxall, Peter C. (2011) The Economics of Wetland Drainage and Retention in Saskatchewan, Canadian Journal of Agricultural Economics, Volume 59, Number 1, March 2011, pp. 109-126, http://dx.doi.org/10.1111/j.1744-7976.2010.01193.x

Ballard, Chris (2001) Wetland Drainage and Agricultural Transformations in the Southern Highlands of Papua New Guinea, Asia Pacific Viewpoint, Volume 42, Numbers 2-3, August/December 2001, pp. 287-304. http://dx.doi.org/10.1111/1467-8373.00150

Du, Guoming; Li, Yun; Yu, Fengrong; Zhang, Shuwen; Yang, Fenghai (2012) Change characteristics analysis of farmland in Northern Sanjiang Plain in 2000- 2009 based on remote sensing, Transactions of the Chinese Society of Agricultural Engineering, Volume 28, Number 1, January 2012, pp. 225-229.

Jason, Mau; Mike, Liggins; Jason, Mau (2006) Bonita Springs East Water Reclamation Facility Sludge-Drying System Selection Process, Proceedings of the Water Environment Federation, Residuals and Biosolids Management 2006, pp. 210-219.

A Bryant, Thomas; E Bryant, Joseph (1998) Wetlands and entrepreneurs: mapping the fuzzy zone between ecosystem preservation and entrepreneurial opportunity,  Journal of Organizational Change Management, Volume 11, Number 2, 1998, pp. 112-134

Girmay, Gebreyohannes; Nyssen, J.; Poesen, J.; Bauer, H.; Merckx, R.; Haile, M.; Deckers, J. (2012) Land reclamation using reservoir sediments in Tigray, northern Ethiopia, Soil Use and Management, Volume 28, Number 1, 1 March 2012, pp. 113-119. http://dx.doi.org/10.1111/j.1475-2743.2011.00368.x

Jenkins, David G.; Grissom, Scott; Miller, Keith (2003) Consequences of Prairie Wetland Drainage for Crustacean Biodiversity and Metapopulations, Conservation Biology, Volume 17, Number 1, February 2003, pp. 158-167. http://dx.doi.org/10.1046/j.1523-1739.2003.01450.x

Kangas, Laura; Maanavilja, Liisa; Hájek, Tomáš; Juurola, Eija; Chimner, Rodney A.; Mehtätalo, Lauri; Tuittila, Eeva‐Stiina (2014) Photosynthetic traits of Sphagnum and feather moss species in undrained, drained and rewetted boreal spruce swamp forests, Ecology and Evolution, Volume 4, Number 4, 1 February 2014, pp. 381-396. http://dx.doi.org/10.1002/ece3.939

Hergoualc'h, Kristell Anaïk; Verchot, Louis Vincent (2012) Changes in soil CH4 fluxes from the conversion of tropical peat swamp forests: a meta-analysis, Journal of Integrative Environmental Sciences, Volume 9, Number 2, 1 June 2012, pp. 93-101  http://dx.doi.org/10.1080/1943815X.2012.679282 

Singh Ladhar, Satnam (2002) Status of ecological health of wetlands in Punjab, India, Aquatic Ecosystem Health & Management, Volume 5, Number 4, 1 December 2002, pp. 457-465.

Zedler, Joy B. (2004) Compensating for wetland losses in the United States, Ibis, Volume 146, Supplement 1, September 2004, pp. 92-100.

Thank you, Paul Chaney. Those papers are very helpful.

Kind Regards,

Yousuf

In Rwanda / Central Africa, I was proud to be involved in the transformation of swamp- and marshlands into highly productive rice-schemes. Yields increased from 1/2 t/ha once a year to 5 t/ha twice a year. The basic principle was to divert the small rivers into 2 peripheral canals, from which small-holder-plots were irrigated by gravity. This was done on some 10,000 ha by now. World-Bank and Dutch Government were the main funder; WB still is active with heavy funds. There are more than 100,000 ha waiting to be transformed. Important lessons gained: A) 10-20 % of the swamps and marshland should be left for ecological buffering and nature. B) The slope of the straightened main river-bed has to have some simple stable speed-brakers / drop-structures; C) The intensive production demands a careful biological and mineral-fertilizer based soil-fertility-strategy; D) The silt-load of the rivers after heavy storms should be systematically used to re-fertilize the plots. E) The ecological aspect of Greenhouse-gases in irrigated rice should be carefully monitored. F) The schemes can likewise be used for conventional intermittend irrigation instead of long-term submersion of rice-plots. G) Contourline-oriented lay-out of plots can reduce the land-levelling-work by 50%. H) Most work could be done by hand-labour, Cash-for-work; I) Allocation of the many new plots best to the poor as per local poverty-ranking-tools. J) In case of need I can provide foto-docs; web-search via: ESIRU Rwanda; Worldbank Ruanda, etc.

Dear Yusouf; there is an interesting initiative going on in West Africa, let by AfricaRice; i made a video on this and AfricaRice can tell you more about it, you can contact: Sander Zwart: [email protected] and have a look at the trailer;

https://www.youtube.com/watch?v=MCZjOorBmiM

the full film also exists on DVD and i believe Sander could send you a copy

Dear Bernhard Meier,

That is interesting study. Do you have any specific official documents, articles, or reports related to this?

Kind Regards,

Yousuf

Dear Toon Dafoer,

Thank you for your suggestion.

Hello,

I have an example from Korea that may be useful to you. Swamp reclamation for rice agriculture did not seems to significantly impact the range of a treefrog species, while tidal flat reclamation for rice agriculture increased the range of the species. I pasted the link below.

Hope it help!

Amael

Article Impact of land reclamation and agricultural water regime on ...