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Novel device and method for improving soil at bare arsenic sandstone areas to plant trees and shrubs

A technology of soil improvement and arsenic sandstone, which is applied in the direction of soil preparation methods, botanical equipment and methods, planting substrates, etc., can solve the problems of no vegetation restoration, dead vegetation, and poor ecological environment that does not play a fundamental role, so as to reduce water and soil Loss, promote ecological restoration, make up for the effect of poor soil

Pending Publication Date: 2020-06-12
NORTHWEST A & F UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the low nutrient content in the arsenic sandstone area and the difficulty of water infiltration, it is extremely difficult to manage this area, and it is not suitable for direct growth of vegetation, especially in the exposed arsenic sandstone area. Currently, most of them are in a natural state and there is no vegetation recovery.
[0003] Therefore, using the traditional water and soil conservation measures of afforestation and grass cultivation to control the exposed arsenic sandstone area has not played a fundamental role in improving the harsh ecological environment of the region, and the planted vegetation is basically dead. Techniques for Planting Low Trees and Shrubs in Areas

Method used

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  • Novel device and method for improving soil at bare arsenic sandstone areas to plant trees and shrubs
  • Novel device and method for improving soil at bare arsenic sandstone areas to plant trees and shrubs
  • Novel device and method for improving soil at bare arsenic sandstone areas to plant trees and shrubs

Examples

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Effect test

Embodiment 1

[0041]On April 11, 2018, at Geqiugou Experimental Station in Nuanshui Township, Inner Mongolia, using the LYS40 micro lysimeter (40cm in diameter, 50cm in height) according to the filling process of the present invention, the bottom layer was first laid with 10cm of PAMN water retaining agent in a saturated state. Fill the water-retaining agent with 30cm of improved soil, and fill it twice. Fill the first layer with 10cm, then fill it with water, and let it stand overnight to fully saturate the soil. Add water until water comes out of the bottom leak tube. Finally, lay 5cm thick coarse sand passing through a 0.55mm sieve in the reserved 10cm above. Automatic monitoring of the evaporation process.

Embodiment 2

[0046] On May 10, 2018, the anti-evaporation layer was collected in the pot in Example 1, and continued to be used after planting. Dig 20cm deep on the top of the improved soil, load the 2-year-old almond seedling into the lysimeter, first backfill the 20cm improved soil dug out, and then cover the surface with the coarse sand collected in the pot. Each treatment was repeated 3 times. Refill water slowly until water comes out of the bottom leak tube. Watering and fertilization management are not carried out during the growth process. Monitor the growth of almonds.

Embodiment 3

[0051] On May 15, 2018, in the exposed arsenic sandstone area on the slope top of Shibar Dagou, Nuanshui Township, Zhungeer Banner, Inner Mongolia, the technical method of the present invention was used to demonstrate the cultivation of mountain peaches, with a planting density of 2m×2m. Utilize the drilling machine of 40cm in diameter drill bit to excavate the planting hole, the depth is 50cm, fill the PAMN water-retaining agent saturated with 10cm of water first in the hole, then fill the improved soil 30cm according to the present invention, fill in twice, the first layer is filled with 10cm, and then Fill it with water and let it stand overnight to fully saturate the soil. The next day, the mountain peaches will be planted. Before planting, dip the roots in a solution of rooting powder with a concentration of 1000ppm. Place it vertically near the south of the planting hole, bury 20cm to improve the soil, and step on it. . Finally, it is covered with 5cm thick coarse sand p...

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Abstract

The invention discloses a novel device and method for improving soil at bare arsenic sandstone areas to plant trees and shrubs. The device includes a device body and seedling planting holes; the soilin the seedling planting holes is successively provided water-retaining layers, planting layers and anti-evaporation layers from bottom to top; the externals of the seedling planting holes are provided with surplus arsenic sandstone accumulated fish-scale pits; and seedlings are arranged in the seedling planting holes. The novel method for improving soil at bare arsenic sandstone areas to plant trees and shrubs is also disclosed. The technical schemes are to utilize convenient local resources-arsenic sandstone and aeolian sandy soil to improve the soil at the bare arsenic sandstone areas and to plant vegetation in the improved soil at the bare arsenic sandstone areas, so that the recovery of the vegetation at the bare arsenic sandstone areas can be better achieved. The device can maximallyincrease the utilization efficiency of water at the bare arsenic sandstone areas, so that soil erosion can be reduced, and ecological restoration can be promoted.

Description

technical field [0001] The invention belongs to the technical field of soil improvement, and relates to a novel device and method for improving soil in exposed arsenic sandstone areas, such as trees and shrubs. Background technique [0002] Pisha sandstone is a kind of loose rock formation, specifically referring to the interbedded rocks composed of thick sandstone, sand shale and argillaceous sandstone in the Paleozoic Permian (about 250 million years) and Mesozoic Triassic, Jurassic and Cretaceous periods. It is concentrated in the Ordos Plateau in the northern part of the Loess Plateau at the border of Shanxi, Shaanxi and Mongolia. It usually exists in alternate layers of pink, purple, off-white, and gray-green. Because of its low degree of diagenesis, poor cementation between sand grains, and low structural strength, it is like mud when it meets water and sand when it meets wind. The water and soil loss is very serious, and the masses suffer from it. sandstone". Due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02A01G17/00A01G9/02A01G24/46
CPCA01B79/02A01G17/005A01G9/02A01G24/46Y02P60/20
Inventor 韩凤朋李永红张鹤彭巍萍毕博远王坤王钰
Owner NORTHWEST A & F UNIV
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