Terrain processing method for improving seashore solonchak

A treatment method, sea salt technology, applied in the fields of land preparation methods, applications, agricultural machinery and implements, etc., can solve the problems of detailed description of improvement effect quantification, high water diversion times, high cost, small investment, improved survival rate, and labor saving. Effect

Active Publication Date: 2013-01-16
ZHEJIANG SENHE SEED
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Problems solved by technology

The patent document (CN101024226A) discloses an improvement method for alkali drainage in saline-alkali land, which involves the layout of the alkali drainage ditch, but this method does not design a reservoir, but d...

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with specific examples.

[0014] An embodiment is detailed below, but it is not limited to any one of these embodiments or similar examples.

[0015] 1. Overview of the implementation site

[0016] The coastline on the south coast of Hangzhou Bay is 78.5 kilometers long, the altitude is only about 2.0-4.0m, the lowest point is only 1.5m, and the average groundwater level is 69.9cm. Contains soluble salts mainly sodium chloride. Vegetation is scarce, and most of the natural herbs are salt-tolerant varieties of Suaeda syringae and Asteraceae, Gramineae, Chenopodiaceae and other plants.

[0017] The implementation site is selected on both sides of the south bank of the cross-sea bridge. Due to the erosion of sea water or the attack of storm surge, it is a typical coastal saline soil and saline-alkali barren beach. In summer and autumn, white salt layers accumulate on the soil surface and the groundwater...

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Abstract

A terrain processing method for improving seashore solonchak belongs to the technical field of soil improvements and includes the steps of firstly, building a drainage system; secondly, building a reservoir; thirdly, flattening land; and fourthly, lifting soil to prepare the land. The terrain processing method for improving seashore solonchak has the advantages that removing salinized surface oil is not needed so that labor is economized; natural rainwater collected is reasonably utilized, no diversion irrigation is needed, investment is low, and accordingly fresh water resources are economized; underground water level is reduced indirectly by turtleback planting lots, salt reduction is accelerated, and survival rate of seedlings can be increased. Saline-alkali soil can be reformed by the terrain processing method for improving seashore solonchak, and the survival rate of each seedling can reach more than 90%.

Description

technical field [0001] The invention belongs to the technical field of land improvement methods, in particular to a terrain treatment method for improving coastal saline soil. Background technique [0002] Coastal saline soil is formed by seawater salting. The salt composition of its soil and groundwater is consistent with that of seawater. It mainly contains soluble salts mainly composed of sodium chloride. Vegetation is scarce, and crops cannot be cultivated without improvement, and only a few salt-tolerant plant varieties can survive. Liaodong Bay, Bohai Bay, Laizhou Bay, Hangzhou Bay, etc. in my country's coastal areas all have large areas of coastal saline soil, and due to seawater siltation and erosion, the area is constantly expanding, and the continuous improvement and utilization of coastal saline soil has become a driving force. An important means for the development of agriculture and forestry in coastal areas. [0003] In order to solve the problem of coastal sa...

Claims

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Application Information

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IPC IPC(8): A01B79/00
Inventor 郑勇平邵春荣范文锋葛映川张蕴
Owner ZHEJIANG SENHE SEED
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