Method for improving and greening natural saline soil

A technology of saline soil and loam soil, applied in the field of ecological restoration technology and application, can solve the problems of land resource destruction, unfavorable sustainable development of ecological environment, high cost of guest soil greening, etc.

Inactive Publication Date: 2012-07-04
TIANJIN INST OF AGRI RESOURCES & ENVIRONMENTAL
View PDF3 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the soil in the coastal area is mostly saline soil and severe saline soil, alien soil greening mode is generally adopted for greening, but the existing guest soil greening mode in coastal saline-alkali land has obvious limitations. Serious damage, and the cost of fore

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 improving and greening natural saline soil
  • Method for improving and greening natural saline soil
  • Method for improving and greening natural saline soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] (1) Lay concealed pipes at a depth of 60cm in the light loamy soil test site with a distance of 5m. The flat land is divided into plots with a width of 5m and a length of 10m. Field ridges with a height of 0.5m and a width of 0.5m are set between each plot Prevent lateral seepage; then pour 5g / L salt water in each plot, 1000m each time 3 / hm 2 , deep plowing before the rainy season (depth is 40cm) after 2 times, and adding 150m of corn stalks at the same time 3 / hm 2

[0071] (2) After filling with salt water twice, apply improver I 5000kg / hm after plowing each plot 2 ; The number of parts by weight of the modifier I component is superphosphate: organic fertilizer: desulfurized gypsum=1:1:3;

[0072] (3) Use the natural rainfall in the rainy season to wash the soil and measure the changes in soil physical and chemical properties.

[0073] The results of the measurement show that: the salt content of the 0-60cm soil dropped from the original 12.56g / kg to 4.35g / kg, t...

Embodiment 2

[0077] (1) Lay concealed pipes at a depth of 60cm in the light loamy soil test site with a distance of 5m. The flat land is divided into plots with a width of 5m and a length of 10m. Field ridges with a height of 0.5m and a width of 0.5m are set between each plot Prevent side seepage; then pour 8g / L salt water in each plot, 1200m each time 3 / hm 2 , deep plowing before the rainy season (depth is 60cm) and adding 100m of corn stalks at the same time 3 / hm 2 ;

[0078] (2) Then plow and apply improver II 5000kg / hm in each plot 2 ; The number of parts by weight of the modifier II component becomes vinegar residue: lignite: desulfurization gypsum=1:2:2;

[0079] (3) Use the natural rainfall in the rainy season to wash the soil and measure the changes in soil physical and chemical properties.

[0080] The results of the measurement show that: the salt content of the 0-60cm soil dropped from the original 13.66g / kg to 3.27g / kg, the soil pH dropped from the original 8.57 to 8.25,...

Embodiment 3

[0084] (1) Lay concealed pipes at a depth of 60cm in the light loamy soil test site with a distance of 5m. The flat land is divided into plots with a width of 5m and a length of 10m. Field ridges with a height of 0.5m and a width of 0.5m are set between each plot Prevent lateral seepage; then pour 6g / L salt water in each plot, 1200m each time 3 / hm 2 , deep plowing before the rainy season (depth is 40cm) after 2 times, and adding 150m of corn stalks at the same time 3 / hm 2 ;

[0085] (2) Then plow and apply Improver II in each plot, 9000kg / hm 2 ; The number of parts by weight of the modifier II component becomes vinegar residue: lignite: desulfurization gypsum=1:2:2;

[0086] (3) Use the natural rainfall in the rainy season to wash the soil and measure the changes in soil physical and chemical properties.

[0087] The results of the measurement show that: the salt content of the 0-60cm soil dropped from the original 14.28g / kg to 3.85g / kg, the soil pH dropped from the ori...

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 discloses a method for improving and greening natural saline soil. The method comprises the following steps: (1), concealed conduits are laid in an experimental field at a depth of 60 cm at intervals of 5 m, the soil is leveled, the field is divided into small areas each of which is 5 m in width and 10 m in length, and field ridges which are 0.5 m in height and 0.5 m in width are arranged between the small areas for preventing side leakage; and before the rainy season, each small area is irrigated with saline water which contains 3 to 10 grams of salt per liter for twice in a manner that the use amount is 1000 to 1500 m<3>/hm<2>; (2), the soil is deeply turned, and meanwhile corn straws with 50 to 150 m<3>/hm<2> are added; (3), ameliorant I or ameliorant II with the use amount of 5000 to 9000 kg/hm<2> is applied after each small area is plowed; and (4), natural rainfall in the rainy season is utilized to wash off the soil, and the change of physicochemical properties of the soil is measured. The experimental results show that the method provided by the invention has the following advantages: harmful salinity in the soil can be reduced quickly; emergency of alkalization in the desalination process of soil can be avoided; greening plants can be planted and survive; physical properties of soil can be effectively improved; soil bulk density can be reduced; total porosity and final infiltration rate of soil can be increased obviously; and a favorable soil environment can be provided for greening plants to grow better for a long term.

Description

technical field [0001] The invention belongs to the field of ecological restoration technology and application technology, and relates to a method for improving and afforesting original soil containing salt, more specifically, a method for afforesting the improvement of saline soil in Tianjin Binhai area. Background technique [0002] As a big energy consumer, our country has few per capita resources and small environmental capacity. Conserving energy resources and protecting the ecological environment are the inevitable choices for thoroughly implementing the scientific concept of development and promoting the construction of ecological civilization. To solve the urban ecological environment problems, the development of ecological gardens is the general trend. Saline soil greening is a worldwide problem, and soil salinization is one of the most serious problems in landscaping. There are more than 100 cities in our country located in saline-alkali areas, all of which are fa...

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): A01B77/00
CPCY02A40/22Y02P60/40
Inventor 王艳廉晓娟王正祥张余良
Owner TIANJIN INST OF AGRI RESOURCES & ENVIRONMENTAL
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