The sustainable development of an urban ecosystem is ensured by maintaining the ecological balance that provides for the rational use of natural resources and the protection of the quality of environmental components. Fresh phytomass is an indicator that provides information about the state and capacity of the ecosystem. The minimum amount of phytomass can serve as a predictor of an ecosystem at risk of degradation. It depends on several conditions,but also by the anthropic factor. In order to assess the productive potential of herbaceous plants within the Bălți urban ecosystem (BUE), during the years 2020-2022 studies were carried out in 9 resorts, in 8 of them phytocenological cutting were carried out using the quadrat method. Productivity was calculated in g/m2. As a result of the evaluation of the primary productivity of the grassy layer, it was established that the lower activity of the anthropic factor increasesthe higher fresh phytomass.The best situation was recorded in the sites: Răut r., confluence with Copăceanca r.;Flămânda - the tributary of Răut r.;Vânătorilor &Pescarilor lake.At the opposite side, the most disadvantaged turned out to be the canoeing channel resort, where it was not possible to carry out phytocenological cutting, as the vegetation was practically absent and dry. Resortthebank of theRăut r., near Locomotivelorstr., is at risk of degradation, as a minimal amount of phytomass was recorded.Likewise, the following vulnerable areas were also identified: the Comsomol lake; Răut r. after confluence withwastewater treatment plant, as well as Răut r., nearbythe bus station. The productivity of the vegetal carpet within the BUE is disturbed by the following threats: grazing, tillage of the soil, ruderal and invasive species, soil salinization, lack of precipitation, etc. In order to ensure the sustainable development of the plant component and increase productivity in vulnerable areas within the BUE, it is proposed to plant native trees and shrubs, which prevent soil erosion, have the ability to maintain water and soil temperature, thus ensuring protection for herbaceous species, but also contributing to the extension of the vegetation period.