CN203290006U

CN203290006U - Big tree salt and alkali prevention planting structure

Info

Publication number: CN203290006U
Application number: CN2013203204745U
Authority: CN
Inventors: 吴卓珈; 徐哲民; 孔杨勇
Original assignee: Zhejiang College of Construction
Current assignee: Zhejiang College of Construction
Priority date: 2013-06-04
Filing date: 2013-06-04
Publication date: 2013-11-20
Anticipated expiration: 2023-06-04

Abstract

The utility model relates to a big tree salt and alkali prevention planting structure which comprises a planting hole, a big tree soil ball and a big tree trunk. A planting hole soil wall is arranged around the planting hole, the big tree soil ball is planted in the planting hole, and the big tree trunk is connected with the big tree soil ball. A broken stone layer is arranged on the bottom of the planting hole, a first planting soil layer is arranged on the broken stone layer, a layer of geotechnical cloth is paved around the first planting soil layer and the planting hole soil wall, an organic fertilizer layer is arranged on the geotechnical cloth, a second planting soil layer is arranged on the organic fertilizer layer, the big tree soil ball is arranged on the second planting soil layer and is covered by planting soil, and four PVC hollow tubes are arranged in the planting soil around the big tree soil ball. The big tree salt and alkali prevention planting structure has the advantages that a composite isolating layer is established to stop a route in which salt water ascends along an underground capillary, growth substances such as water and nutrition can be provided for a big tree timely, air in the root of the trunk can be exchanged, and therefore the planting survival rate of big trees in salt and alkali areas can be greatly improved. The big tree salt and alkali prevention planting structure further has the advantages of being low in construction cost, simple and convenient to construct and the like.

Description

A kind of large tree resists saline and alkaline pattern of farming

Technical field

The utility model relates to the garden engineering technology field, and especially a kind of large tree resists saline and alkaline pattern of farming.

Background technology

Often contain excessive salt and alkali component in varieties in saline-alkali areas soil, can produce various toxic actions to garden plants, not too be fit to the normal growth needs of most of garden plants, thereby cause plant community to be difficult for forming, afforestation is difficult to meet the needs that contemporary cities is built.The particularly plantation of the large tree of afforestation, be subjected in soil the restriction of salt and alkali component larger, causes its survival rate and Landscape Expression not to reach requirement.Although more existing measures that alkaline land soil improved by physics and chemistry or biological approach at present, also reach certain improving the soil and control the salt purpose, but from concrete landscape engineering, put into practice, the plantation of the large tree of afforestation in saline land exists to a certain extent can select that measure is limited and single, concrete implementation criteria that can not reference and index parameter, the implementation cost high present situation such as but planting effect is not satisfactory, thereby has affected the integrated greening style and features in city.Solve above technical problem and not only will form saline and alkaline separation layer, reduce the impact of salt and alkali component on the tree body in soil, also want can according in tree body developmental process to the needs of relevant growth substance, in time the growth substances such as moisture, nutrient are directly inputted in trees soil napiform root system, to facilitate the quick absorption of tree body.

Summary of the invention

The utility model will solve the shortcoming of above-mentioned prior art, provide a kind of large tree to resist saline and alkaline pattern of farming, it can pass through metalling, geotextiles etc. and form compound saline and alkaline separation layer, required by the nutrition that the base manure shop fixtures provides large tree to recover tree vigo(u)r and late growing stage, can also pour into the growth desired substances such as moisture, nutrient to large usage tree root by the hole on PVC hollow pipe and tube wall thereof in good time, and be conducive to the air exchange of root, thereby promote root system to sprout.

the utility model solves the technical scheme that its technical problem adopts: this large tree resists saline and alkaline pattern of farming, comprise that surrounding is provided with the kind plant hole of kind of plant hole Tu Bi, plant the native ball of large tree in kind of plant hole, the large tree trunk that connects the native ball of large tree, plant the plant hole bottom and be provided with metalling, the metalling top is provided with plantation soil layer one, be equipped with one deck geotextiles around plantation soil layer one and kind plant hole Tu Bi, the geotextiles top is provided with the fertilizer layer, fertilizer layer top is provided with plantation soil layer two, the native ball of large tree is located at plantation soil layer two tops and by planting soil, is covered, be provided with four PVC hollow pipes in the planting soil of the native ball surrounding of large tree.

As preferably, described metalling thickness is 10～20cm, and ballast grain sizes used is 4～6cm.

As preferably, described geotextiles extends upward laying by plantation soil layer one along planting plant hole Tu Bi, and geotextiles is vertically laid height greater than 1/3 of kind of plant hole height, but less than 2/3 of kind of plant hole height.

As preferably, described four PVC hollow pipes are symmetrically distributed in the native ball surrounding of large tree, and its mouth of pipe is above ground level, and every PVC hollow pipe and the formed Plane Angle of large tree trunk are between 30 °～45 °.

As preferably, the diameter of described four PVC hollow pipes between 5～15cm, is distributed with the hole that diameter is 2～4cm on its tube wall.

The effect that utility model is useful is: the utility model is not only by setting up the path of compound insulation layer blocking-up saliferous moisture along underground capillary rise, also can in time be the large air exchange of setting the growth substances such as moisture, nutrient are provided and tree body root, thereby greatly improve the plantation survival rate of the large tree of varieties in saline-alkali areas, the utility model also has the advantages such as construction cost is low, easy construction.

Description of drawings

Fig. 1 is large seeds plant hole cross-sectional view;

Fig. 2 is large seeds plant hole plane figure schematic diagram;

Fig. 3 is that the PVC hollow pipe is assigned schematic diagram;

Fig. 4 is that the geotextiles facade is arranged schematic diagram;

Description of reference numerals: metalling 1, plantation soil layer 1, geotextiles 3, fertilizer layer 4, plantation soil layer 25, planting soil 6, PVC hollow pipe 7, set greatly native ball 9, sets greatly trunk 10, plants plant hole soil wall 11.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

embodiment: as Fig. 1, shown in 2, it is 10～20cm that the utility model is first laid a layer thickness in large seeds plant hole bottom, ballast grain sizes is the metalling 1 of 4～6cm, both can be used as the blocking-up salinity with the underground water ground floor of migration up, also can bring into play the infiltration effect, lay the thick plantation soil layer 1 of one deck 5cm on metalling 1, can prevent that rubble from poking geotextiles, lay geotextiles 3 on plantation soil layer 1, and geotextiles 3 is up extended laying along planting plant hole soil wall 11, as shown in Figure 4, the vertical height of laying of geotextiles 3 is greater than 1/3 of kind of plant hole height, but less than 2/3 of kind of plant hole height, so not only can isolate the impact that native ball bottom and surrounding contain saline and alkaline composition underground water, the down seepage that also can be conducive to excessive moisture in kind of plant hole.Afterwards, lay the thick fertilizer layer 4 of one deck 5cm as base manure on geotextiles 3, and cover the thick plantation soil layer 25 of 5cm and set fertile isolation, in order to avoid burn out root system.Finally, will set greatly by planting requirement and put into kind of a plant hole, and in the native ball surrounding symmetry of large tree, assign four rear backfill planting soils 6 of PVC hollow pipe 7, until field planting is complete.Every PVC hollow pipe 7 inserts nozzle position in soil and is in the middle part of native ball 9 outer rims of large tree, and upper orifice is slightly above ground level, every PVC hollow pipe 7 with set greatly the formed Plane Angle of trunk 10 and be controlled between 30 °～45 °, as shown in Figure 3.The diameter of every PVC hollow pipe 7 is between 5～15cm, hollow in pipe, be covered with the hole that diameter is 2～4cm on tube wall, make the maintenance personnel can according in tree body developmental process to the needs of relevant growth substance, in time the growth substances such as moisture, nutrient are directly inputted in trees soil napiform root system, to facilitate the quick absorption of tree body, and be conducive to set the air exchange of body root, thereby promote root system to sprout.

In addition to the implementation, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims

1. a large tree resists saline and alkaline pattern of farming, comprise that surrounding is provided with kind of the kind plant hole of plant hole Tu Bi (11), plant the native ball of large tree (9) in kind of plant hole, the large tree trunk (10) that connects the native ball of large tree (9), it is characterized in that: plant the plant hole bottom and be provided with metalling (1), metalling (1) top is provided with plantation soil layer one (2), plantation soil layer one (2) and kind plant hole Tu Bi (11) are equipped with one deck geotextiles (3) on every side, geotextiles (3) top is provided with fertilizer layer (4), fertilizer layer (4) top is provided with plantation soil layer two (5), the native ball of large tree (9) is located at plantation soil layer two (5) tops and by planting soil (6), is covered, be provided with four PVC hollow pipes (7) in the planting soil (6) of large tree native ball (9) surrounding.

2. large tree according to claim 1 resists saline and alkaline pattern of farming, and it is characterized in that: described metalling thickness is 10～20cm, and ballast grain sizes used is 4～6cm.

3. large tree according to claim 1 resists saline and alkaline pattern of farming, it is characterized in that: described geotextiles (3) extends upward laying by plantation soil layer one (2) along planting plant hole Tu Bi (11), geotextiles (3) is vertically laid height greater than 1/3 of kind of plant hole height, but less than 2/3 of kind of plant hole height.

4. large tree according to claim 1 resists saline and alkaline pattern of farming, it is characterized in that: described four PVC hollow pipes (7) are symmetrically distributed in the native ball of large tree (9) surrounding, its mouth of pipe is above ground level, and every PVC hollow pipe (7) and the formed Plane Angle of large tree trunk (10) are between 30 °～45 °.

5. large tree according to claim 1 resists saline and alkaline pattern of farming, and it is characterized in that: the diameter of described four PVC hollow pipes (7) between 5～15cm, is distributed with the hole that diameter is 2～4cm on its tube wall.