I feel relatively sure that if you look up the USDA Natural Resources Conservation Service on the internet, you will find information on how this agency helps local farmers develop conservation plans and address environmental issues. Typically once farmers develop an approved conservation plan, they have more options for cost sharing some of this work that typically helps to promote water quality, soil conservation and sustainable operations. Sorry, I don't have any good examples to send you. However, I am pretty sure there are scientists, professors, technical professionals and local farms or farming groups that may also have examples for you to learn from, closer to your location. Much of my career, I saw the effects of past farming, road building, logging operations as well as natural disasters that could be approved as well as spent significant time to rehabilitate issues from the past. The knowledge we have today is much better, but is difficult and a continuing need to get the word out. With the knowledge of what you seek, you may become a person that can help transfer this technology. Mistakes of the past were probably based largely on the lack of information and benefits of conservation. Yet even today, there is a continuing need for information presented in a respectful manner on how individuals might use their land to not only address their needs today, but consider years into the future.
It is a year later, but I recommend the book Nature's Matrix by my mentors Ivette Perfecto and John Vandermeer (with historian Angus Wright); a collaborative paper of ours, which you may have already seen, also discusses this in the context of Latin America here: https://f1000research.com/articles/2-235/v1
The FAO has been grappling with this question as well; you might look at the materials from their Year of Family Farmers (http://www.fao.org/family-farming-2014/en/) and Agroecology portal (http://www.fao.org/agroecology/en/).
Frankly, given the poor state of rigorous knowledge about many variables at significant scale (see e.g. http://www.ids.ac.uk/publication/under-what-circumstances-and-conditions-does-adoption-of-technology-result-in-increased-agricultural-productivity-a-systematic-review ) it's not surprising there isn't more in-depth information to be found. An interesting question would be if the significant monetary and human resource investments necessary to address this rigorously might not be better spent improving basic infrastructure, education, access and the like for family farmers -- but as with so many things, the "right" answer no doubt includes investments in both. So the real crux perhaps is: how to spur sufficient, and sufficiently responsive/responsible investment in both research and extension/outreach/"development".
You can find some papers in Etudes rurales review but the best is a direct exchange because I am working on the question attempting to apply the concept I built : "culture of nature" linked with "inhabitancy mode" to lead interviews with peasant family in France in order to investigate their relation to "nature" through their own practices but also with representations of climate change, pesticids and OGM, soils degradation ....