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Human-induced restoration method for degraded Nitraria sphaerocarpa sand heaps of desert-oasis ecotones

A technology of artificial repair and bubble thorn, which is applied in the direction of soil preparation, application, agricultural machinery and implements, etc., can solve the problems of not being able to stop degradation, and achieve the effects of preventing desertification, improving physiological and ecological adaptability, and protecting oases

Active Publication Date: 2018-11-09
NORTHWEST INST OF ECO-ENVIRONMENT & RESOURCES CAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But for desert shrubs that are already in the process of degradation, taking natural restoration measures cannot stop the degradation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This embodiment provides a method for artificial restoration of degraded bubble thorn sand piles in the desert oasis transition zone, including:

[0035] After the dead branches are mowed on the flat ground, they are removed from the sand pile, and the stubble of the live branches is 10-12cm.

[0036] Shallow plowing: Soil disturbance is carried out between the branches of the Bubble thorn bush, the shallow plowing depth is 6cm, and the surface litter is mixed into the sand layer. The area of ​​the shallow plowing disturbed soil accounts for 30% of the shrub sand pile area,

[0037] Supplementary application of multi-element compound fertilizer with N, P, K, Ca, Na content of more than 40% 10g / m 2 , shallow turning after spreading.

Embodiment 2

[0039] This embodiment provides a method for artificial restoration of degraded bubble thorn sand piles in the desert oasis transition zone, including:

[0040] After the dead branches are mowed on the flat ground, they are removed from the sand pile, and the stubble of the live branches is 10-12cm.

[0041] Shallow plowing: Disturb the soil between the branches of the Paopa thorn shrub, the shallow plowing depth is 8cm, and the surface litter is mixed into the sand layer, and the area of ​​the disturbed soil by shallow plowing accounts for 40% of the area of ​​the shrub sand pile;

[0042] Supplementary application of multi-element compound fertilizer with N, P, K, Ca, Na element content of more than 40% 15g / m 2 , shallow turning after spreading.

Embodiment 3

[0044] This embodiment provides a method for artificial restoration of degraded bubble thorn sand piles in the desert oasis transition zone, including:

[0045] After the dead branches are mowed on the flat ground, they are removed from the sand pile, and the remaining stubble of the live branches is 12-14cm.

[0046] Shallow plowing: Soil disturbance is carried out between the branches of the Bubble thorn shrub, the depth of shallow plowing is 10cm, and the surface litter is mixed into the sand layer. The area of ​​the disturbed soil by shallow plowing accounts for 50% of the area of ​​the sand pile of the shrub.

[0047] Supplementary application of multi-element compound fertilizer with N, P, K, Ca, Na element content above 40% 20g / m 2 , shallow turning after spreading,

[0048] Use 20% concentration of Fenxining to prevent and control rust; use 30% octylamine EC to control Spodoptera bubbly.

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Abstract

The invention discloses a human-induced restoration method for degraded Nitraria sphaerocarpa sand heaps of desert-oasis ecotones. The method comprises following steps: stumping treatment, soil crustdestroy treatment and supplementing application of chemical fertilizer. According to the method, degraded Nitraria sphaerocarpa is subjected to the stumping treatment firstly, older branches and weakbranches are removed to stimulate germination of latent buds at the root of the Nitraria sphaerocarpa, the soil crust destroy treatment is executed below Nitraria sphaerocarpa bushwood, water is promoted to permeate into layers of root distribution, and then supplementing application of the chemical fertilizer is performed. After human-induced restoration method for the degraded Nitraria sphaerocarpa, activation of the Nitraria sphaerocarpa sand heaps are effectively suppressed, the Nitraria sphaerocarpa sand heaps are fixed again, and the method plays an important role of preventing desertization of oasis peripherals and protecting oasis.

Description

technical field [0001] The invention relates to the technical field of ecological protection and restoration, in particular to a method for artificially repairing degraded bubble thorn sand piles in a desert oasis transition zone. Background technique [0002] Nitraria sphaerocarpa Maxim. is a shrub of the genus Nitraria sphaerocarpa Maxim. It is widely distributed in the lowlands between gravel Gobi and desert hills in the Hexi Corridor. It has the characteristics of drought resistance, saline alkali resistance, wind erosion resistance, and sand burial resistance. In particular, Bubble thorn can quickly grow adventitious roots after being buried in sand, and then expand branches and leaves, accumulate sand and form mounds, forming fixed and semi-fixed Bubble thorn shrubs and sand piles. In the oasis-desert transition zone, the distribution of the bubble thorn sand piles plays an important role in preventing the invasion of quicksand and maintaining the stability of the oasi...

Claims

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Application Information

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IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 苏永中刘婷娜
Owner NORTHWEST INST OF ECO-ENVIRONMENT & RESOURCES CAS
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