Benches and flower boxes decorate the shore trail, and cannabis and Zaili flowers flourish on the side of the canal. On the morning of October 22, the nitrogen and phosphorus ecological interception ditch of Lijiangfa farmland in Chihuai Town, Kaihua County passed the acceptance, and the farmland drainage ditch that was ordinary a few months ago has now become a beautiful landscape.
The ecological ditch project not only emphasizes the "face", adds ornamentality to the ditch, and emphasizes the "lizi" and improves the functionality of the ditch. The provincial grain functional area of Lijiangba is mainly based on the cultivation of rapeseed and rice, and the unabsorbed nitrogen and phosphorus in the chemical fertilizer will be directly discharged into the downstream water body with the farmland water, causing pollution, which not only directly affects the living environment of farmers, but also relates to the safety of water for agricultural production.
"Ecological ditches mainly purify water quality through farmland nitrogen and phosphorus interception and process absorption engineering and ecological transformation. The effect of stripping nitrogen and phosphorus is directly or indirectly achieved by setting up integrated interception and conversion devices, integrated denitrification phosphorus removal devices, ecological permeable dams and other facilities and planting aquatic plants to adsorb nitrogen and phosphorus in water. Yang Kejun, project leader of the construction unit, introduced that in addition to process control, the ecological ditch also carries out terminal treatment by setting up an ecological pond for secondary interception of nitrogen and phosphorus.
According to Yao Guangwei, deputy director of the New Rural Construction Center of the County Agriculture and Rural Bureau, the Lijiangba Ecological Ditch is the sixth ecological ditch built in Kaihua County since 2018, with an investment of more than 520,000 yuan, the total length of the ditch is about 1,012 meters, the ecological pond is 105 square meters, covering more than 600 mu of farmland in the surrounding area, and the effective nitrogen and phosphorus emission reduction can reach more than 30%.
The construction of ecological ditches has a positive effect on the treatment of non-point source pollution in farmland, and the treatment of the "capillaries" at the door of the people is the end project of opening up the last kilometer of the "five-water co-governance" project, and also helps to promote the green development of modern agriculture and make the construction of beautiful villages go further.
(Source: Kaihua County People's Government website) [Submissions, regional cooperation, please send a private message or send a 3469887933 #qq.com within 24 hours to reply. 】