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A method for constructing an ecological farm and pasture model to improve the productivity of coastal saline soil

A technology for farms and pastures and sea salt, which is applied in the field of ecological farming and pasture model construction to improve the productivity of coastal salt soils, can solve problems such as obstacles to agricultural development and utilization of coastal salt wasteland, inability to be used for agricultural irrigation and drinking water for humans and animals, and excessive concentration of natural rainfall. , to achieve the effect of material and energy self-circulation, rich species diversity, and rich habitat types

Active Publication Date: 2020-12-01
YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Second, the groundwater has a high degree of mineralization and a shallow buried depth. The groundwater is mostly salt water, which cannot be used for agricultural irrigation and drinking water for humans and animals. The buried depth is generally more than 2m.
Fourth, there is a lack of fresh water resources, and external surface water cannot meet the demand. At the same time, natural rainfall is too concentrated. More than 70% of the annual rainfall is concentrated in summer, resulting in drought and water shortage in spring and autumn.
These factors have become a huge obstacle to the agricultural development and utilization of coastal salt wasteland

Method used

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  • A method for constructing an ecological farm and pasture model to improve the productivity of coastal saline soil
  • A method for constructing an ecological farm and pasture model to improve the productivity of coastal saline soil
  • A method for constructing an ecological farm and pasture model to improve the productivity of coastal saline soil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The construction is as follows: at least one ecological farm and pasture model area composed of agricultural planting area, pasture livestock area and wetland aquatic area is constructed on the coastal wasteland to be treated. The periphery of each area is a wetland aquatic area. The wetland and aquatic areas are connected; the agricultural planting area is based on the ground level and raised by 1.2-1.5 meters through the original soil; the pasture livestock and poultry area is a slope of 5-10° from the ground level through the accumulation of the original soil, and The top of the slope borders the raised agricultural planting area, and the bottom of the slope borders the wetland aquatic area; the wetland aquatic area is a water storage pool formed by digging ditches based on the ground level.

[0034] The wetland aquatic production area is a water storage tank dug and formed below the ground level for water collection; a water pump is arranged in the water storage tank...

Embodiment 2

[0042] Transformation of coastal saline soil in the Yellow River Delta (see figure 1 ):

[0043] (1) Overview of the place of implementation:

[0044] The area of ​​salinized land in the Yellow River Delta region is 443,000 hm 2 , accounting for more than half of the total area, the average salt content is as high as 1.7%, the soil is sticky and heavy, the fertility is low, the groundwater table is shallow, and fresh water resources are scarce. Spring is dry, the soil has high salinity, and the rainy season is concentrated in summer, which is prone to waterlogging. The natural vegetation is single, and most of them are salt-tolerant plants. The herbaceous plants are mainly reeds and Suaeda salsa, and the shrubs are mainly tamarix.

[0045] (2) The implementation site is a degraded reed wetland at the entrance of the Dawenliu Management Station in the Yellow River Delta. The terrain in this area is flat, with spring drought and summer flood, and the soil conductivity is abou...

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Abstract

The invention relates to recovery of salinized soil, and specifically relates to an ecological farm and ranch mode construction method improving seashore saline soil productivity. The method comprises: constructing an ecological farm and ranch mode region formed by at least an agricultural planting region, a pasture livestock region, and wetland aquatic product regions on a to-be-treated coastal wasteland, the periphery of each region being the wetland aquatic product region, the wetland aquatic product regions of two adjacent regions being connected; the agricultural planting region using a ground plane as a baseline, original soil lifting 1.2-1.5 m; the pasture livestock region being a sloping field which has an angle of 5-10 DEG with the ground plane through piling by the original soil,the top end of the sloping field being bordered with the lifted agricultural planting region, and the bottom end of the sloping field being bordered with the wetland aquatic product region; and the wetland aquatic product region being a reservoir formed by ditching using the ground plane as the baseline. The method adjust measures to local conditions, and completely uses original soil micro-topography reformation design, gravel and other ingredients are not needed to be added, so as to save large amount of cost.

Description

technical field [0001] The invention relates to the restoration of saline soil, in particular to a method for constructing an ecological farm and pasture model for improving the production capacity of coastal saline soil. Background technique [0002] The distribution of saline-alkali soil in my country is very extensive. According to statistics, my country has a total of 31.72 million mu of coastal saline soil, of which 25.8 million mu is non-cultivated coastal saline soil, accounting for 81.34% of the coastal saline soil area. These coastal saline soils are widely distributed in the coastline of about 3000km in eastern my country, including Shandong, Jiangsu, Liaoning, Hebei, Tianjin and other provinces (cities). As the Yellow River estuary moves further eastward, the area of ​​coastal saline soil is gradually increasing. Saline-alkali soil is formed by the accumulation of a large amount of saline-alkali components in the soil due to various reasons. The saline-alkali com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/00A01K61/10A01K67/02A01B79/02
CPCA01B79/02A01K67/02A01K61/10A01G22/00Y02A40/70Y02A40/81
Inventor 韩广轩王光美管博颜坤徐刚
Owner YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI
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