Method for monitoring soil salinity by utilizing sensitive plants

A sensitive plant, salinization technology, applied in the field of soil salinization monitoring, can solve the problems of single technology, cumbersome, poor monitoring accuracy, achieve simple and effective system, save equipment and energy consumption, good economy Effect

Inactive Publication Date: 2011-05-11
SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for monitoring and judging the degree of soil salinization using a

Method used

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  • Method for monitoring soil salinity by utilizing sensitive plants
  • Method for monitoring soil salinity by utilizing sensitive plants
  • Method for monitoring soil salinity by utilizing sensitive plants

Examples

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Embodiment

[0028] Example: Field trials and results in the plastic greenhouse of Jianlv Cauliflower Cooperative in Chongming Modern Agricultural Park from March to May are taken as an example.

[0029] In 4 0.24hm2 plastic greenhouses, 3 test plots (area 150cm×100cm) were laid out according to the diagonal method. The colonization method in each test plot is as follows: figure 1 As shown, a 50-day investigation and monitoring was carried out.

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Abstract

The invention belongs to the field of farmland ecological environmental protection, in particular to a method for monitoring soil salinity by utilizing sensitive plants. The method comprises the following steps of: 1) establishing a scientific composite indication system; 2) arranging reasonable monitoring cells and setting a sensitive plant planting method; and 3) analyzing to obtain meaningful judgment results. The method has the advantages that: 1, the traditional situation that the soil salinity is monitored by physicochemical methods is broken, and the influence of factors such as soil texture, carbon nitrogen ratio and microbial community on crop growth under the equivalent salinity condition can be comprehensively reflected; 2, the established sensitive plant composite indication system is simple and effective, does not have requirement on educational background of investigators, is suitable for the research of scientific research personnel and is easily understood and mastered by farmers; and 3, the sensitive plant composite indication method has high economical efficiency, the whole monitoring process can be completed by means of simple equipment such as a ruler and a scale, and expensive instruments and energy are saved.

Description

Technical field [0001] The invention relates to a method for monitoring the degree of soil salinization, in particular to a method for distinguishing and monitoring the degree of soil salinization by using a sensitive plant compound indicator system, and belongs to the field of farmland ecological environmental protection. Background technique [0002] Salinized soil is a type of soil widely distributed in the world. Especially since the second half of the 20th century, with the large-scale and intensive development of irrigation and facility agriculture technologies around the world, it has been caused by excessive irrigation or poor drainage systems. As the groundwater level rises, more and more fertile fields have erupted with secondary salinization. According to incomplete statistics from the United Nations Educational, Scientific and Cultural Organization (UNESCO) and the Food and Agriculture Organization (FAO), the saline soil area in the world is about 95438 million hectar...

Claims

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Application Information

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IPC IPC(8): G01N33/24
Inventor 顾海蓉沈根祥黄丽华钱晓雍
Owner SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
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