Method for recovering desertified grassland in grazing ecosystem

An ecosystem and restoration method technology, applied in fertilization methods, botanical equipment and methods, animal husbandry, etc., can solve the problems of applicability depending on the degree of desertification, restricting large-scale practice of restoration measures, etc., to achieve strong sustainability and low cost Low, cost-reducing effects

Pending Publication Date: 2022-06-14
NANJING UNIV
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It should be pointed out that the current discussion on the restoration effectiveness of these measures is mainly based on the results of short-term experimental studies, and the applicability of different measures depends strongly on the degree of desertification. Some measures, such as ecological blanket coverage, add extraneous substances. This situation may Greatly limits the large-scale practice of specific restoration measures

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for recovering desertified grassland in grazing ecosystem
  • Method for recovering desertified grassland in grazing ecosystem
  • Method for recovering desertified grassland in grazing ecosystem

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] In March 2010, the area of 5 fences in Maixi Township, Ruoerge County, Qinghai-Tibet Plateau was 4hm 2 Left and right degraded sands. From 25 May to 15 June, yak herds after feeding in nearby meadows were artificially driven to 5 plots of about 100 yaks each, and the yaks remained in the meadows for at least 4 hours. Within 4 hours, the yak herd is driven slowly, and the excretion and stampede activities of the yak herd are naturally completed, and the same operation continues until 2020.

[0041] as Figure 1 As shown, the effect of desertified grassland restoration after 4 years and 10 years is remarkable. Soil and vegetation testing in years 4 and 10 showed an increase in plant species richness and 90 g / m2 and 378 g / m2 increases in aboveground biomass compared with the control sandy areas ( Figure 2 Soil organic carbon increased by 350% and 935%, soil total nitrogen content increased by 597% and 1413%, and total phosphorus content increased by 15% and 29% ( Figure 3 )。

...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a method for restoring desertification grassland in a grazing ecosystem. The method comprises the steps that S1, the desertification grassland which is extremely degraded in the grazing grassland ecosystem is selected; s2, further determining the desertification grassland with normal large livestock grazing activities in adjacent grassland as a recovery object; s3, in the early stage of the plant growth season every year, driving the large livestock fed by the adjacent grassland into the desertification grassland, enabling the large livestock to move continuously while completing excretion activities, and treading the desertification grassland and excreta; s4, after the large livestock completing the treading activity is driven to the adjacent grassland for eating, the large livestock is driven to the desertification grassland again; s5, the step S3 and the step S3 are repeated, and the duration time is 15-25 days; s6, repeating the step S5 for 4-10 years; and S7, after 4-10 years, detecting plant growth and soil property index data. The recovery method is free of exogenous substance addition, low in cost, easy to operate and convenient to popularize in a large area in degenerated grazing grassland.

Description

Technical field [0001] The present invention relates to the field of ecosystem restoration technology, in particular, to a method and system of restoration of desertified grasslands in a grazing ecosystem. Background [0002] Grassland is one of the important ecosystem types, and its global distribution area is second only to forests and woodlands, accounting for nearly 1 / 4 of the earth's surface land area. While grasslands play a key role in biodiversity maintenance, soil and water conservation, the global carbon cycle, livestock production, etc., they are also very sensitive to environmental change, and most of the world's grasslands belong to fragile ecosystems. At present, due to global climate change and irrational human activities, the phenomenon of grassland degradation and even desertification is becoming increasingly serious. As the world's second largest grassland country, China's degraded grassland area exceeds 3 / 4 of the total grassland area, of which nearly 1 / 3 appea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): A01G22/00A01G20/00A01C21/00A01K67/02
CPCA01G22/00A01K67/02A01C21/00A01G20/00
Inventor 吴新卫解明达供曲巴让孙书存
Owner NANJING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap