posted 4 years ago
Hi Cody
I would say you need to tackle that erosion, your instinct is right, it will be taking away nutrients and soil resources from your land. Where is the water coming from that is feeding the ditches? Is it good quality clean water or is is loaded with nasties from someone else's actvities? This might influence what you want to do with it. If it's loaded with pesticides and you have plenty of water yourself, you may wish to pipe the ditches and get rid of it, but in a way this is just shifting the problem further on down the catchment. If you want to turn it into a positive thing, you need to slow that flow. Building swales on the contours will allow anything the water is carrying to settle out and the water itself to infiltrate the land.
Maybe the ditches developed from when the bulldozing and building work was going on and the water is now captured in other ways before it reaches this hilly spot. I would still look into creating swales or sediment traps in case it is a seasonal event. Maybe a series of dams to delay occasional floods and allow the water to travel sideways into irrigation channels.
Housing developers here are starting to be required to build SUDS into their plans - Sustainable Urban Drainage Systems. Basically these take the appearance of ponds which are dry most of the time but catch water from flood events and release it slowly. Seasonal ponds are good for a lot of wildlife as fishy predators do not get a chance to colonise.