A method to make the soil moisture uniform in the test field in the hilly area of ​​the middle and lower reaches of the Yangtze River

A soil moisture and experimental field technology, applied in the hilly agricultural field in the middle and lower reaches of the Yangtze River, can solve the problems of repeated parallel difference and large soil moisture difference, and achieve the effect of lowering the groundwater level and homogenizing the groundwater level.

Inactive Publication Date: 2018-09-25
INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problems in the above-mentioned prior art, the present invention provides a method for uniform soil moisture in the test fields in the hilly areas of the middle and lower reaches of the Yangtze River. The difference in soil moisture is too large, resulting in the problem of repeated parallelism

Method used

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  • A method to make the soil moisture uniform in the test field in the hilly area of ​​the middle and lower reaches of the Yangtze River
  • A method to make the soil moisture uniform in the test field in the hilly area of ​​the middle and lower reaches of the Yangtze River

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Experimental program
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Embodiment 1

[0035] 1) Investigate the movement characteristics of groundwater around the experimental field A:

[0036] From April to July, the period from April to July is when the middle and lower reaches of the Yangtze River are relatively rich in rainfall. Use soil drilling to determine the buried depth of groundwater around the test field, such as figure 1 As shown, the northern part (upper part) of the experimental field 1 is bordered by the plot A2. In this embodiment, the plot A is a mountain pond for long-term livestock and water. The plot B3 bordering the east and west sides of the test field is the plot C4. In this embodiment, the plot B and the plot C are both slope lands, which are used for long-term dry farming. Bordering on the southern part (lower part) of the test field is plot D5, and in this embodiment, plot D is a paddy field. The results are as follows: the buried depth of groundwater table at the junction of test field 1 and plot A2 is 20 cm, the buried depth of gro...

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Abstract

The invention discloses a method for homogenizing soil moisture of test fields in hilly areas of the middle and lower reaches of the Yangtze River. The method includes the steps of 1, investigating the characteristics of underground water around the test fields; 2, excavating earthworks; 3, building wall bodies; 4, dumping earthworks; 5, hardening a headrace channel; and 6, arranging water inlet and outlet channels. The method is simple, practicable and convenient to operate and can solve the problem that the difference of the soil moisture is large and causes repeated parallel errors because relative positions of the test fields are different.

Description

technical field [0001] The invention relates to the technical field of hilly agriculture in the middle and lower reaches of the Yangtze River, and more specifically relates to a method for making soil moisture uniform in a test field in the hilly area of ​​the middle and lower reaches of the Yangtze River. Background technique [0002] Most of the hills in the middle and lower reaches of the Yangtze River belong to the northern subtropical zone, and a small part belongs to the northern margin of the middle and lower subtropical zone. The annual average temperature is 14-18°C, the coldest monthly average temperature is 0-5.5°C, the absolute minimum temperature is -10--20°C, the hottest monthly average temperature is 27-28°C, and the frost-free period is 210-270 days. Agriculture has two crops or three crops a year, and the annual precipitation is 1000-1400 mm, concentrated in spring and summer. Zonal soils are only found in low hills and gentle hills, mainly yellow-brown soi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B13/00E02B11/00A01B79/00
CPCA01B79/00E02B11/00E02B13/00
Inventor 侯海军陈焱国张文钊刘毅魏文学
Owner INST OF SUBTROPICAL AGRI CHINESE ACAD OF SCI
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