Sand-heaping forestation technique on gobi sandstorm area at extreme drought environment

Abstract

The invention relates to sand accumulating and forest planting method in an extremely drought Gobi sand area, which fully utilizes conditions that the Gobi sand area is open, the wind carries quicksand on the near surface and the Gobi sand area has certain flood recession to accumulate sand in planting pits, utilizes the condition that the Gobi area is close to certain flood-recession facilities to irrigate the planting pits and accumulate silts, and utilizes the condition that autumn flood is relative rich to plant forest. The method firstly plants adaptable species in the Gobi sand area, such as narrow-leaved oleaster and Chinese tamarisk to form an early arbor-bush mixed forest, then plants bush plant species which grow quickly, such as Calligonum rubicundunm after a certain condition of accumulated sand and silt is formed in the forest belt to further strengthen sand fixing function of the forest belt, and plants less adaptable arbor tree species, such as poplar tree after relative good soil and water conditions are formed in the forest belt so as to gradually increase species diversity and strengthen comprehensive prevention function of the forest belt.

Description

technical field [0001] The invention relates to a method for afforestation by accumulating sand in the Gobi sandstorm area in an extremely arid environment. The popularization and application of the method will provide guarantee for the establishment of a shelter forest system in the extremely arid area. Background technique [0002] Gravel desert (also known as Gobi in Mongolian) is a type of desert under arid climate conditions. It is distributed in the northern part of Inner Mongolia, the Hexi Corridor and the edge of the Zhungeer, Tarim, Qaidam and other basins; the surface is almost completely covered by gravel , the gravel is generally thick; there is no soil development, and the plants are sparse; the surface of the gravel often has "desert paint", which is black. In some Gobi deserts, small white gravels remain on the ground. The gravels that make up the Gobi are alluvial deposits of ancient rivers, or alluvial deposits, or residues after bedrock weathering. Under t...

AI Technical Summary

Problems solved by technology

There is relatively little wind and sand during this period), but due to the wind and fine sand in the Gobi area in late spring and early summer in the coming year, individual plants are difficult to preserve