Insect-bacterium-sand three-dimensional ecological system and construction method thereof

Abstract

The invention discloses an insect-bacterium-sand three-dimensional ecological system and a construction method thereof. The ecological system takes arenosol as a base layer, and the base layer is sequentially covered with a humus layer and a surface layer; and the humus layer is mainly composed of rotten leaves or fermented straw, insect droppings and bacterial colonies. The construction method mainly comprises the following steps that the arenosol is crushed to form the arenosol base layer; the rotten leaves or / and the fermented straw is / are added into the insect droppings and the bacterial colonies, mixing is carried out in proportion, and a mixture is laid on the surface of the arenosol base layer to form the humus layer; crushed straw is laid on the surface of the humus layer, bacterial liquid is sprayed, and the surface layer is formed; and earthworms are put into the surface layer, crops such as flowers, plants and grains are planted after 7 days of recuperation, local surface insects are introduced, and the insect-bacterium-sand three-dimensional ecological system is formed. According to the insect-bacterium-sand three-dimensional ecological system constructed by the method,vegetables and short-root plants can be planted within 3-6 months, middle-root plants can be planted in 6-12 months; and long-root plants can be planted after 36 months, so that self-repairing and virtuous cycle development of the arenosol soil are realized, and conditions are provided for developing ecological agriculture.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, in particular to a three-dimensional ecological system of insect fungus sand and a construction method thereof. Background technique [0002] Taking Nanxiong City, Guangdong Province as an example, a kind of sandy red soil developed on the parent material of red sandstone is widely distributed in subtropical regions of my country, forming a unique red sand ridge landform. Because the red sandstone is weak in texture, easy to corrode, and the surface is strongly eroded, the terrain in these areas is broken, the slope is gentle, and the weathering, erosion, erosion, and water and soil loss are extremely serious. After some erosion, the bedrock is exposed, forming a bare The original flat and complete ground was washed and eroded into a hilly shape, forming a red sand ridge landform. [0003] The red sandy soil in the Hongshaling area is reddish-brown, sandy loam or light loam, with ...

AI Technical Summary

Problems solved by technology

[0003] The red sandy soil in the Red Sand Ridge area is reddish brown, sandy loam or light loam, with a pH value of 4.0-5.5 and a soil thickness of 35-65cm; most of the shallower soil has been reclaimed as gardens In the shallow soil layer of some mountain back hills, sporadically grow horsetail grass or thatch, hawthorn thorns, etc., and there are pieces of exposed rock baldness, and some sparse lichens, earth horse palms and other low plants grow on the rock baldness; Ridges or gentle slopes with deep layers can be developed into arable land. However, due to the unobvious development of the red sandy soil profile, the soil is cold, the water and fertilizer retention capacity is poor, and the young seedlings do not grow old, the productivity of the crops has always been low.