Diversifolious poplar root pruning tillering asexual propagation method

Abstract

The invention relates to a diversifolious poplar root pruning tillering asexual propagation method, which is characterized in that: an asexual propagation characteristic that a horizontal root of the diversifolious poplar in an upper soil layer can be tillered into an adventitious bud which can be further grown into young shoots is utilized, on the basis that a growth and propagation rule of the desert riparian forest diversifolious poplar in an arid region and surface hydrology distribution temporal and spatial characteristics in the region are followed, before the sprouting of the diversifolious poplar roots in every spring, partial horizontal roots in the upper soil layer are artificially pruned, an irrigation practice is adopted, and the horizontal roots of the diversifolious poplar in the upper soil layer are stimulated through artificial disturbance so as to promote the asexual propagation of the diversifolious poplar of desert riparian forest in the amid region, to prevent the updating hypodynamia and aging development trend of the degenerative populus euphratica oliv. population, to further accelerate the ecological restoration process of the populus euphratica oliv. population, to promote the updating of the degenerative of the populus euphratica oliv. population and to realize the favorable evolution of the desert riparian forest ecological system plant community structure.

Description

technical field [0001] The invention relates to a vegetation restoration and reconstruction technology of a degraded desert riparian forest ecosystem in an arid area, in particular to a technology and method for regenerating and restoring populations of a desert riparian forest in an arid area. Background technique [0002] Arid and semi-arid regions cover 40% of the world's land area. Low rainfall, high evaporation and weak soil development have created low vegetation coverage and fragile and easily disturbed ecosystems in arid and semi-arid regions. The desert riparian forest ecosystem is an important part of the desert ecosystem in arid and semi-arid regions, providing most of the productivity in the desert ecosystem. Due to the characteristics of easy disturbance, instability and high vulnerability, coupled with human's unreasonable water and soil development, the environmental and ecological problems of the desert riparian forest ecosystem have become increasingly promi...

AI Technical Summary

Problems solved by technology

However, with the continuous degradation of the desert riparian forest ecosystem in the arid area, the root system of Populus euphratica gradually develops and grows to the deep layer when the groundwater table continues to decline, and the water content of the upper soil (0-150cm) continues to decrease, which will lead to a large number of horizontal roots in the soil. Live or stop the root tiller, these all increase the difficulty of Populus euphratica to rely on the root for asexual reproduction