Positive effects of ecological water supply for rivers and lakes in Ningxia.

The positive effects of ecological water replenishment on rivers and lakes in Ningxia are as follows:

Effectively improve the lake wetland ecosystem. Ecological water supply maintains the hydrological cycle of lakes and wetlands, which is beneficial to the growth of wetland plants and increases biodiversity. Maintain the existing area of rivers and lakes. Ecological water supply can prevent the area of rivers and lakes from decreasing and protect the ecological environment of rivers and lakes.

Promote continuous improvement of water quality. Ecological water supply can reduce pollutant concentration and improve water quality by diluting, replacing and renewing water bodies. Maintain an appropriate groundwater level. Through ecological water supply, groundwater level can be prevented from falling and groundwater resources can be protected. Increase groundwater recharge and strategic reserve. Ecological water supply increases the recharge source of groundwater and the strategic reserve of groundwater.

Ecological water supplement is to transfer water to the ecosystem damaged by failing to meet the minimum ecological water demand by adopting engineering or non-engineering measures, to supplement its ecosystem water consumption, to curb the destruction of ecosystem structure and the loss of function, and to gradually restore the original self-regulation function of the ecosystem.

Among them, ecological water demand refers to the amount of water needed to maintain the balance and stability of normal ecosystems and material circulation in rivers and lakes. Ecological water supplement can not only increase the self-purification ability of water body and alleviate water pollution, but also play an important role in repairing water ecosystem, maintaining biodiversity, regulating local climate and reducing urban heat island effect.

cause

Ecological water supply is to protect and restore the ecosystem. Ecological water supplement is an ecological restoration method to prevent ecological degradation, which aims to replenish water to the damaged ecosystem because the minimum ecological water demand cannot be met, so as to protect the normal function of the regional ecosystem.

Ecological water supplement can not only increase the self-purification ability of water body and alleviate water pollution, but also play an important role in repairing water ecosystem, maintaining biodiversity, regulating local climate and reducing urban heat island effect.