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Method for improving alkaline bare land by planting wild barley in good time

A barley and saline-alkali technology is applied in the field of ecological engineering for the rapid establishment of perennial vegetation. Effect

Inactive Publication Date: 2005-06-29
吉林省生态恢复与生态系统管理重点实验室
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Problems solved by technology

Although the cost of improving saline-alkali bare land by biological methods is relatively low, the method is relatively simple, and it can quickly produce ecological benefits, it is generally recognized by everyone, but because of the slow establishment process of perennial vegetation, the economic and social benefits are relatively low. affect its promotion

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Embodiment Construction

[0014] The present invention has the best implementation effect in the middle of the rainy season. According to the meteorological data of Changling County Meteorological Station in Jilin Province for 20 years, the rainy season of the experimental site is from June 1st to September 1st every year, and it is determined that the saline-alkali bare land will be lightly plowed and raked in mid-July. Select 30 hectares of saline-alkali bare land, the soil salinity is 3.0-5.5ms / cm, and the pH is 10.2-10.4 (salt content and pH are measured under the condition that the ratio of water to soil is 5:1). On July 25, 2002, 2 days after a rainfall (one-time rainfall of 95.5mm, duration of 4.5 hours), the 802-type crawler tractor was used to hang the notch heavy rakes (2 groups of 20 rakes) for shallow raking, and the notch weight was adjusted. Rake angle, control the rake turning depth to 6-10cm. Immediately after raking, artificially sow wild barley seeds (mixed with 1% sycamore seeds) al...

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Abstract

Disclosed is a method for improving alkaline bare land by planting wild barley in good time, in particular an ecological engineering method for planting multiple years growing plantation, the method is especially suitable for rapid plantation in heavily salinized bare grass soil in Northeast, which includes soil working in time and seeding procedure. The invention can be applied for rapidly growing perennial plants, increasing plantation thickness and improving soil physical and chemical property.

Description

technical field [0001] The invention belongs to the transformation of saline-alkali bare land in severely salinized grassland, and particularly relates to an ecological engineering method for rapid establishment of perennial vegetation. technical background [0002] Soil salinization in Northeast grasslands is the result of the comprehensive effects of many natural factors such as climate, terrain and landform, soil parent material, hydrology and hydrogeological conditions, etc. It is overgrazing, blind land reclamation and other activities that lead to the reduction of grassland vegetation coverage, aggravation of soil erosion, and gradually intensified soil salinization, forming large areas of saline-alkali bare land, thus gradually losing the ecological, economic and social functions of grassland. The vegetation coverage of the saline-alkaline bare land is zero, and the soil evaporation increases, which continuously accumulates the salt in the deep soil and groundwater to...

Claims

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Application Information

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IPC IPC(8): A01B79/02
Inventor 周道玮姜世成王平
Owner 吉林省生态恢复与生态系统管理重点实验室
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