Method for management of muddy coastal mudflat by echelon plantation of suaeda salsa, alfalfa and maize

A technology for salinity and silt, applied in land preparation methods, climate change adaptation, agricultural machinery and machinery, etc., can solve the problems of long time for single biological measures, shortage of fresh water resources, high degree of salinization, and achieve low cost , save water resources, reduce the effect of accumulation

Active Publication Date: 2016-12-14
COASTAL AGRI RES INST HEBEI ACAD OF AGRI & FORESTRY SCI
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Problems solved by technology

[0005] The invention aims at the practical problems of poor soil quality, high degree of salinization, shortage of fresh water resources, high cost of physical and chemical measures to control saline-alkali land, and long time for single bio...

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  • Method for management of muddy coastal mudflat by echelon plantation of suaeda salsa, alfalfa and maize
  • Method for management of muddy coastal mudflat by echelon plantation of suaeda salsa, alfalfa and maize
  • Method for management of muddy coastal mudflat by echelon plantation of suaeda salsa, alfalfa and maize

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Embodiment Construction

[0023] The present invention is described in detail below in conjunction with the examples, but the examples do not constitute any limitation to the present invention.

[0024] The implementation site of this embodiment is located in the silty coastal saline soil area of ​​Caofeidian District, Tangshan City, Hebei Province, with a longitude of 119°01.154' and a latitude of 37°43.306' north.

[0025] Soil sample collection and soil quality analysis were carried out on the original landform of the project area. The soil is sticky, the soil structure is extremely poor, and the bulk density is (1.33-2.27) g / cm 3 , the content of large structures > 0.25 mm is 7.5%, and the content of microstructures < 0.25 mm is 92.5% (see Table 1); the total salt content of 0-20 cm plow layer soil is 2.3-5.2%, which is severe coastal saline soil (see Table 2 ); soil nutrients are lacking, and the vegetation is dominated by Suaeda salsa, with a coverage rate of less than 2%; the buried depth of gro...

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Abstract

The invention relates to a method for management of muddy coastal mudflat by echelon plantation of suaeda salsa, alfalfa and maize. The method includes: establishing a level-2 water draining and salt leaching system in a muddy coastal mudflat region; establishing a salt leaching and soil fertility improving plow layer; establishing a rainwater and freshwater resource utilization combined echelon propelled biological improvement mode. According to a plant-soil adaptability principle, echelon plantation of suaeda salsa, alfalfa and maize is carried out to realize echelon degradation of coastal saline soil from coastal saline soil, severe salinized soil, moderate salinized soil to plow land, wherein the suaeda salsa is a pioneer halophilous plant, the alfalfa is a salt-tolerant soil improving plant, and the maize is a field crop. Problems of high cost of physical and chemical measures for management of saline-alkali soil and long time of biological measures are solved, organic combination of ecological restoration and agricultural production is realized, a win-win purpose of ecological benefits and economical benefits is achieved, and technical supports are provided for utilization of coastal mudflat farmland.

Description

technical field [0001] The invention relates to the control and utilization of saline-alkali land on coastal beaches, in particular to a method for stepwise planting of Suaeda salsa-alfalfa-corn in saline land to control muddy coastal beaches. Background technique [0002] The saline-alkali barren land in coastal beaches has heavy salinity and poor quality soil, and the conventional flooding of salt water consumes a lot of water resources, and the cost of improvement is high, which has become an urgent technical problem to be solved in the development and utilization of tidal flats. So far, the measures taken by countries around the world mainly include engineering measures, chemical measures, and biological measures. Although engineering measures and chemical measures have quick results, they are expensive and have great side effects. For example, the use of irrigation to wash salt not only consumes a lot of water (1.6 times that of biological improvement), but also washes ...

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Application Information

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IPC IPC(8): A01B79/02
CPCA01B79/02Y02A40/10
Inventor 王秀萍刘雅辉鲁雪林张国新姚玉涛孙建平王婷婷
Owner COASTAL AGRI RES INST HEBEI ACAD OF AGRI & FORESTRY SCI
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