Dongba Village Landscape Design And Valley Ecological Restoration Research

The Tibetan Plateau is one of the regions with the most abundant ecological types in China.In addition to the natural and original geomorphological environment,there are also rich biological and mineral resources,among which the numerous rivers are also one of its remarkable features.There are many famous rivers in the Tibetan Plateau,such as the Brahmaputra and the Nujiang,which play an important role in the ecological environment.The ecological security of the Tibetan Plateau is not only related to these famous rivers,but also to the ecological security of South Asia.At present,the plateau valley is faced with severe ecological problems,such as fragile ecosystem,serious degradation of grassland,serious water and soil erosion,destruction of biodiversity and so on.Facing these ecological environment challenges is also a wake-up call for people to protect the ecological environment.As a typical plateau valley area in Tibet,Dongba Township of Zuogong County has seasonal drought and tropical climate.The most significant vegetation morphology was the xerophytic vegetation.Soil organic matter content is low,soil degradation is serious and so on.With the rapid development of social economy,the ecological and environmental problems in Dongba Township are increasingly exposed.First,the problem of soil erosion is serious;second,sediment pollution;third,the phenomenon of random discharge of pollutants exists.Therefore,the core of this design is to organize the site water system,mitigate soil erosion,reduce waste discharge and enrich biodiversity.By means of field research,online data collection and screening,geographic information technology and other related methods,combined with ecology and other related theories,the ecological environment of the plateau valley is systematically analyzed.Through the fish-scale pit,slope planting,sand dam,garbage classification treatment and other measures,with wetland purification tank,three-dimensional agriculture and other ecological means to solve the most important three problems: reduce soil erosion,enhance the development of vegetation,control pollutant discharge.Finally,to reduce the impact of human activities on the environment,improve the ecological environment of the site to achieve the purpose of harmonious coexistence of human and nature.