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Ecological engineering technology for reforming saline-alkali bare land by inserting maize stalk and planting grass

A technology for corn stalks and grasses, which is applied in the field of rapid vegetation establishment and ecological engineering, can solve the problems of high improvement cost, and the improvement method cannot be widely popularized, and achieves effective, sustainable promotion, and reduced soil bulk density. Effect

Inactive Publication Date: 2006-02-08
吉林省生态恢复与生态系统管理重点实验室
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although these methods have significant effects on improving saline-alkali bare land, they are limited by some conditions (such as water resources, drainage conditions, etc.) and because the improvement cost (2000-4000 yuan / ha) is too high, the existing economic conditions cannot meet , the improved method cannot be promoted on a large scale

Method used

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Embodiment Construction

[0011] The best plan of the present invention is that the effect is the best when the plant seeds are mature in August-September. Cut the corn stalks into small sections with a length of 10-25cm, and use a shovel or a self-made wedge tool to dig out 10cm deep on the saline-alkali bare ground. Cut the corn stalks vertically into the pit, and pay attention to slightly expose the corn stalks to the ground. Then a small amount (10-15 grains) of perennial grass plant seeds such as Leymus chinensis, wild barley and sycamore seeds are sown on the corn stalk cuttings, and a small amount of soil or no soil can be used. The row spacing of corn stalks is controlled at 40-60cm, and the spacing is 30-40cm. If you want to shorten the recovery time, you can reduce the spacing and row spacing, but the corresponding cost will increase, and the sowing amount of perennial grass seeds is 10-15kg ha -1 . After the straw cuttings are cut, the perennial grasses (such as Leymus chinensis) are prope...

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Abstract

An ecological engineering technique for improving the saline-alkaline land features that the segments of corn stalk are obliquely inserted in said saline-alkaline land at intervals and sowing the seeds of perennial plant.

Description

technical field [0001] The invention belongs to the transformation of saline-alkali bare land in saline-alkali grassland, and particularly relates to an ecological engineering technology for rapid vegetation establishment. technical background [0002] In recent years, due to unreasonable human activities in production and life, especially activities such as overgrazing and blind land reclamation, the area of ​​saline-alkali grassland in Northeast China has continued to expand, and the degree of salinization has gradually intensified, gradually forming large areas of saline-alkali bare land. Saline-alkali bare land has zero vegetation coverage, increased soil evaporation, and continuously accumulates deep salt to the surface, becoming a source of saline-alkali. At the same time, through water erosion and wind erosion, it causes and aggravates the salinization of adjacent grasslands and farmland. Therefore, how to quickly restore saline-alkaline bare land to grassland covered...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G7/00B09C1/00
Inventor 周道玮姜世成吴泠
Owner 吉林省生态恢复与生态系统管理重点实验室