Caragana korshinskii afforestation method under difficult site condition

Abstract

The invention relates to a caragana korshinskii afforestation method under a difficult site condition. The caragana korshinskii afforestation method comprises the following steps that (1) seed selection is achieved: caragana korshinskii seeds without damage and insect pests are selected, and the caragana korshinskii seeds are cleaned; (2) fish-scale pits are dug: the fish-scale-shaped pits are dug in a target wasteland at the interval of 2 meters, wherein the fish-scale-shaped pits are distributed in a delta shape; and (3) when one-time effective rainfall reaches 20-30 mm, the seeds are soaked for 2-3 hours and planted in soil moisture, and seedlings are tended according to a conventional method after the seedlings come up; or when the one-time effective rainfall is 2-3 mm, a mulching film is laid, when the soil moisture content reaches 7-10 cm of the earth surface, the seeds are soaked for 2-3 h and then planted in soil moisture, and after the seedlings come up, tending is conducted according to the conventional method. The caragana korshinskii afforestation method under the difficult site condition has the advantages of being low in investment, high in seed emergence rate, rapid in seedling growth, rapid in forest establishment, suitable for afforestation in various slopes and slopes difficult sites, and easy to popularize.

Description

technical field [0001] The invention relates to a method for raising seedlings, in particular to a method for afforesting Caragana caragana under difficult site conditions. Background technique [0002] Caragana ( Caragana korshinskii ), Fabaceae, Caragana genus, shrubs, also known as wool strips and lime strips, with extremely developed root systems, taproots penetrate deep into the soil, plant height is 40-70 cm, and can reach a maximum of about 2 meters. It is suitable for growing on sunny and semi-sunny slopes at an altitude of 900-1300 meters; it is drought-resistant, cold-resistant, and high-temperature-resistant. It is an xerophytic shrub in arid grasslands and desert grasslands. Caragana caragana seeds germinate rapidly when exposed to water, have a high germination rate, and have strong drought resistance. At present, Caragana is one of the important tree species for water and soil conservation and sand-fixing afforestation in Northwest China, North China, and Nort...

AI Technical Summary

Problems solved by technology

[0004] At present, most of the domestic and foreign laboratory research is on some technical systems of Caragana caragana seedlings in nursery bases or fish scale pits combined with seed afforestation, and on difficult sites by digging fish scale pits + rainwater harvesting and planting, fish scale pits + There is no report on the afforestation method of Caragana caragana planted with plastic film + rain harvesting and moisture harvesting

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