Application of eutrophic water to improvement of photosynthetic capacity of lawn plants

A technology of eutrophication of water and eutrophication, applied in the direction of botanical equipment and methods, applications, climate change adaptation, etc., to achieve the effect of solving large water consumption and reducing costs

Inactive Publication Date: 2009-11-11
TIANJIN NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a method of using eutrophic water irrigation to improve the photosynthetic capacity of lawn plants, because it not only solves the source of water needed for irrigating the turf, but also makes the landscape effect and the function of governance and restoration equally important. Water ecological restoration technology

Method used

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  • Application of eutrophic water to improvement of photosynthetic capacity of lawn plants
  • Application of eutrophic water to improvement of photosynthetic capacity of lawn plants
  • Application of eutrophic water to improvement of photosynthetic capacity of lawn plants

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Experimental program
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Effect test

Embodiment 1

[0041] (1) Evenly sow lawn plants in natural soil;

[0042] (2) Cultivate with clean water at the early stage of sowing, and irrigate with eutrophic water diluted 75% of the original concentration after the seeds germinate;

Embodiment 2

[0045] 1. Development method

[0046] In this experiment, the common terrestrial turf plants in northern my country were perennial ryegrass (Lolium perenne L.) and tall fescue (Festuca arundinacea L.). Through the germination in the previous chapter, three water areas with high germination rate and severe eutrophication of the turfgrass were selected as experimental water for irrigation in this experiment. They are: the water area along the outer ring line, the water area around Yao Village, and the master Domestic sewage on campus. The TN of the three waters are: 9.7mg / L, 12.3mg / L, 13.1mg / L; TP are: 0.6mg / L, 0.9mg / L, 0.8mg / L; pH values ​​are: 8.12, 8.99, 8.67. According to the "National Surface Water Environmental Quality Standard" (GB3838-2002), the water used in this experiment exceeded the surface water standard of Class V and reached the level of eutrophication. For the control, tap water was selected, the TN of which was 0.16 mg / L; the TP was 0.01 mg / L; and the pH was 6.89. ...

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Abstract

The invention discloses an application method of eutrophic water irrigation in the improvement of photosynthetic capacity of lawn plants, wherein the eutrophic water is the eutrophic water with 25 percent-75 percent of the original concentration thereof; and the eutrophic water has TN of 9.7mg/L-13.1mg/L, TP of 0.6mg/L-0.9mg/L and pH value of 8.12-8.99. Results show that the photosynthetic performances of the stomatal conductance, the intercellular carbon dioxide concentration, the net photosynthetic rate, the transpiration rate, the water content utilization efficiency and the like are improved if the diluted 25 percent-75 percent eutrophic water is used in the irrigation, thereby achieving the purpose of improving the lawn quality characters and protecting environment.

Description

Technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a treatment method for urban eutrophic water bodies. More specifically, it is the application of eutrophic water to improve the photosynthetic capacity of lawn plants. Background technique [0002] Water eutrophication refers to a pollution phenomenon that is harmful due to the increase of nutrients in the water body due to human activities, which causes excessive growth of plants and changes in the ecological balance of the entire water body. The eutrophication of water bodies is also a difficult problem in the management of water environment in our country. Excessive concentrations of nitrogen (N) and phosphorus (P) in the water bodies are the main reasons for the eutrophication of water bodies. With the continuous development of cities and industries, as well as the large-scale use of agricultural fertilizers and phosphorus-containing detergents, a large amount of un...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F7/00A01G7/00
CPCY02A40/20
Inventor 赵树兰多立安杨子君
Owner TIANJIN NORMAL UNIVERSITY
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