Quick planting and establishing method for alkaline land vegetation

A bare ground and saline-alkali technology, which is applied in the field of rapid perennial vegetation establishment, can solve the problems of inability to obtain large-scale application and promotion, and high cost of improvement, and achieve the effect of sustainable improvement, effective and simple operation.

Inactive Publication Date: 2006-06-21
NORTHEAST NORMAL UNIVERSITY
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  • Summary
  • Abstract
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Problems solved by technology

Although these two methods have a significant effect on improving saline-alkali bare land, due to the high cost of improvement (4000-5000 yuan / ha) and the limitation of some conditions (such as water resources, drainage conditions, etc.), the existing socio-economic The conditions cannot be met, so that these improved methods cannot be applied and promoted on a large scale

Method used

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Experimental program
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Embodiment Construction

[0015] The present invention has the best implementation effect in autumn seed maturity period and spring windy period. According to the species and amount of seed flow on the saline-alkali bare land in Songnen Grassland and the results of local meteorological data for many years, the time for ridge building in saline-alkali bare land is determined to be May 10. Select 20 hectares of saline-alkali bare land at the Changling Stud Farm in Jilin Province. The conductivity value of the soil water-soluble salt content is 3.0-5.5ms / cm, and the pH value is 10.2-10.4 (the ratio of salt content and pH value to water and soil is 5:1. measured under conditions). Use a 20-horsepower agricultural tractor to hang three plows to build ridges, adjust the height and spacing of the three plows, control the height difference between the furrow and the ridge platform to be 15-20cm, and the distance between the furrows to be 65cm. The direction of ridge building is northeast, perpendicular to the...

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Abstract

The present invention belongs to saline and alkaline land reconstruction, and relates to the ecological engineering method of fast constructing vegetation in bare saline and alkaline land. The method includes timely constructing ridges, timely harrowing, rotary tillage, seeding perennial pasture and other processes. The present invention makes it possible to fast grow annual plant in the bare land and utilize the annual plant matter in improving the physical and chemical properties of the soil surface layer so as to grow perennial pasture. The present invention can increase grassland coverage fast, reduce harm of the bare saline and alkaline land on nearby farm field and grassland, improve ecological environment and utilize the saline and alkaline land to provide pasture.

Description

technical field [0001] The invention belongs to soda saline soil transformation, relates to an ecological engineering method for rapid establishment of saline-alkali grassland vegetation, and is particularly suitable for rapid establishment of perennial vegetation in saline-alkali bare land in the salinized grassland of the Songnen Plain in Northeast China. technical background [0002] Soil salinization in Songnen Grassland in Northeast China is the result of the combined effects of many natural factors such as climate, topography and landform, soil parent material, hydrology and hydrogeological conditions, and human economic activities. Especially in recent years, irrational use by humans, such as overgrazing, land reclamation and farming, has led to the reduction or disappearance of the dominant grassland vegetation density, the reduction of vegetation coverage, the aggravation of soil erosion, and the gradual intensification of soil salinization, thus forming a large area...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/00A01B77/00
Inventor 姜世成周道玮
Owner NORTHEAST NORMAL UNIVERSITY
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