Vegetation configuration method for preventing and treating water and soil loss in gully development region of dry-hot valley

Abstract

The invention discloses a vegetation configuration method for preventing and treating water and soil loss in the gully development region of a dry-hot valley. The vegetation configuration method comprises the following steps: carrying out different microtopography reformations to different spaces according to dominant species and community composition in different spaces of water gathering grounds, gully heads, shore ditches and ditch beds in the gully development region of the dry-hot valley, and breeding suitable plant species for different spaces subjected to microtopography reformations,matching and adding other corresponding plant species on the basis of plant growing condition and other community composition conditions in different spaces, and constructing a vegetation community capable of preventing and treating water and soil loss and suitable for the habitat in the gully development region of the dry-hot valley. According to the vegetation configuration method provided by the invention, a relatively stable community structure is enabled to be formed quickly in the gully development region of the dry-hot valley, water and soil loss in the gully development region of the dry-hot valley is prevented, and certain social and ecological benefits are produced.

Description

technical field [0001] The invention relates to the fields of soil and water conservation and restoration ecology, in particular to a vegetation configuration method for preventing and controlling water and soil loss in a dry-hot valley gully development area. Background technique [0002] The dry-hot valley gully development area is a general term for the valley belt-shaped area with two basic attributes of dry and hot. Geographically, it is a familiar natural landscape, mainly distributed in the Minjiang River, Dadu River, Yalong River, etc. in southwest my country. The valley slopes of the Jinsha River, the Nujiang River, the Lancang River, and the North and South Panjiang Rivers. Prevention and control of dry-hot valleys and gully development areas The region is rich in light and heat resources, has a hot climate and little rainfall, the ecology is very fragile, the vegetation is sparse, and the forest coverage rate is low. [0003] The dry-hot valley is a general term f...

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Problems solved by technology

[0006] At present, the vegetation restoration model in gully development areas in dry-hot valleys mainly adopts large-scale land preparation, such as filling trenches and building terraces, and then planting vegetation. At the same time, in the process of plant species selection, usually select For alien species with certain economic value (such as Eucalyptus and Leucaena), due to the extremely dry and hot climate and poor soil in the gully development area of ​​dry and hot valleys, traditional control methods not only cannot effectively achieve the control effect, but also large-scale land preparation and The introduction of alien species makes the allocation of plant species in the gully unreasonable, not only the input cost is high, but also water and soil erosion, diseases and insect pests are very prone to occur, which further deteriorates and degrades the ecology of the gully

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