Common ecological restoration methods

Technical methods of ecological restoration of broad soil and water conservation

(1) Ecological restoration of degraded slope ecosystems

Ecological restoration of degraded arable land ecosystems: apply less chemical fertilizers and more farmyard fertilizers; plant green manure plants and increase the varieties of nitrogen-fixing crops; rotate crops, set crops and plant inter-planting and mixed planting; reduce chemical control and increase biological control; and plant equi-height plant hedges. Ecological restoration of degraded woodland, grassland and wasteland ecosystems: on the basis of closure, replanting native tree species and grass species. The duration of closure varies according to the type of ecosystem, degree of damage, climate and other factors. Generally speaking, tree forests, shrub forests and grassland ecosystems can be closed for more than 8 years, 5 to 8 years and 3 to 5 years respectively. (2) Ecological restoration of degraded river ecosystems

In the soil erosion area, the driving forces leading to river degradation mainly include road construction, mining, woodcutting, riverbank grazing, surface pollution by fertilizers and pesticides, point source pollution by industrial wastewater and domestic sewage, and overfishing, etc. To carry out ecological restoration of degraded river ecosystems due to these driving forces, the most important thing is to alleviate or lift the driving forces leading to the degradation of river ecosystems. The most important thing is to reduce or remove the driving forces that lead to the degradation of river ecosystems, so that rivers can recuperate.

(3) Ecological restoration of degraded oasis ecosystems in inland river basins

Rationally develop and utilize water resources, and implement ecological emergency water replenishment projects, at least to meet the minimum ecological water demand of natural oasis ecosystems; reasonably adjust the land use structure, and appropriately reduce the area of manmade oases, so that the ratio of manmade oases to natural oasis area is adjusted to about 1:1.

(4) Ecological restoration of degraded reservoir ecosystems

The ecological restoration of degraded reservoir ecosystems can take the same method as that of degraded river ecosystems.

(5) Ecological restoration of degraded mine ecosystem

The ecosystem's soil, plants and other components are completely damaged, lacking the nutrients needed for plant growth, and ecological restoration of this seriously degraded ecosystem can be carried out by covering the soil, physically treating the soil, adding nutrients, removing harmful substances, planting well-adapted pioneer tree or grass species, and interplanting native trees. grass species, interplanting native tree or grass species. Mobile Atlas

Technical Methods of Narrow Soil and Water Conservation Ecological Restoration

(1) The basic technical method of ecological and natural restoration is the sealing method. This method is applicable to ecosystems with a lesser degree of damage.

(2) The basic technical method of restoring ecology by natural and artificial **** is the method of "closure + replanting". This method is applicable to ecosystems with a heavy degree of damage.

Soil and water conservation is the lifeline of sustainable economic and social development in soil erosion areas, and is the main body of ecological environment construction. The proposal and implementation of soil and water conservation ecological restoration is a major innovation in the concept of soil and water conservation work, but soil and water conservation ecological restoration should not be limited to the current narrow soil and water conservation ecological restoration, should be from the narrow soil and water conservation ecological restoration to the broad soil and water conservation ecological restoration transformation. Even if such a transformation is realized, soil and water conservation ecological restoration is only an important aspect of integrated management of soil and water conservation watersheds, it can not completely replace the artificial afforestation planting grass and other biological measures of soil and water conservation, and even more so, can not replace the slope to ladder, silt dams, Valley Square, small reservoirs, cisterns and other soil and water conservation engineering measures.