Ecological restoration method of extreme saline-alkali soil
A technology for ecological restoration and saline-alkali land, which is applied in the fields of land preparation, agriculture, and applications. It can solve the problems of few and unsustainable saline-alkali land management and utilization, and achieve good ecological restoration, accelerated soil improvement, and less natural disturbance.
Inactive Publication Date: 2020-02-11
TIANJIN TEDA GREEN GRP CO LTD
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
These measures are unsustainable for the treatment and utilization of saline-alkali land, and phytoremediation is an important direction for ecological restoration of saline-alkali land. At present, there are many researches and applications in this area, but there are few studies from the perspective of the entire ecosystem—use Meteorology, soil science, botany, ecology and other disciplines carry out saline-alkali land control
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] From 2017 to 2019, the heavy saline-alkali land ecological restoration project was carried out in Tianjin Binhai Sino-Singapore Eco-City; the project location is close to the Bohai Sea, the groundwater level is about 150cm, and the total salt content of the 0-5cm soil surface at the end of May 2017 was 65g / kg, and the pH was 8.3 , The total salt content of the 5-50cm soil is between 38g / kg-51g / kg, and the vertical change of the total salt content is small. The soil is clayey soil with poor permeability and no plant growth.
[0020] A method for ecological restoration of coastal heavy saline-alkali land, the method comprising the steps of:
[0021] 1) At the beginning of June 2017, the terrain was shaped, a ditch with a depth of 30cm and a width of 50cm, and a ridge with a width of 50cm were created, and the ridges in the east-west direction were made (because Tianjin is located in the north of the Tropic of Cancer, in order to ensure that the sun is perpendicular to the ...
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
Login to View More Abstract
The invention relates to an ecological restoration method of extreme saline-alkali soil. The method includes the steps: 1) molding a landform at the beginning of June, molding a furrow with the depthof 30cm and the width of 50cm, molding a ridge and furrow landform with the ridge width of 50cm, enabling the direction of a ridge to be perpendicular to a summer sun angle, forming a shadow area in the furrow, digging two drainage ditches in two ends perpendicular to a ridge and furrow direction, and enabling the drainage ditches to be open; 2) transplanting suaeda salsa seedlings when rain comesin June of next year; 3) digging holes in a ridge side with the vertical height of 10cm away from the bottom of the furrow to plant suaeda salsa; 4) omitting watering after transplanting, and keepingthe furrow and the drainage ditches closed; 5) enabling plants to naturally grow without manual intervention. The method is low in cost, steps of the method are simple and convenient, interference innature is less, and ecological restoration of severe saline-alkali soil can be effectively achieved.
Description
technical field [0001] The invention relates to a method for improving coastal saline-alkali land, in particular to an ecological restoration method for coastal heavy saline-alkali land with bare boards. More especially, it is an ecological restoration method for coastal heavy saline-alkali bare floor with a total salt content of 0-5cm in the soil surface layer above 60g / kg. Background technique [0002] There is a large area of saline-alkali land in the coastal area, and the soil salinity is generally high, with an average salt content of about 30g / kg. Because the salt content of the soil is higher than the salt-tolerant limit of plants, most plants cannot survive, so there are large areas without plant coverage. On the one hand, due to the lack of vegetation cover on the surface and large evaporation, it is easy to cause soil salt to accumulate on the surface, and the salt content in the surface layer increases, forming a vicious circle, which brings difficulties for la...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02
CPCA01B79/02
Inventor 贾林张金龙刘璐瑶王国强田晓明张清
Owner TIANJIN TEDA GREEN GRP CO LTD