Method for increasing survival rate of seedlings under phoebe bournei forest

A technology of survival rate and Nannan, which is applied in the field of improving the survival rate of seedlings under the forest of Nannan, can solve the problems of high labor, material resources, time and high cost, and achieve the effects of low cost, simple operation, good social and ecological benefits.

Inactive Publication Date: 2019-05-31
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method needs to firstly raise the seedlings in the nursery by manually collecting the seeds of Phoebe, and it takes at least one year to cultivate the seedlings. The promotion of the natural forest regeneration of Phoebe can be completed in two stages, which will consume a lot of manpower, material resources and

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] This embodiment includes the following steps:

[0023] (1) Digging pits and filling soil: in the multi-species mixed forest with the distribution of Nannan, in 2016, the forest gap and the place with a canopy density of 0.5 were selected for partial site preparation and excavated with a length × width × depth of 20 cm × 20 cm × 20 cm. There are 30 pits, and the soil in the nearest fir forest is filled into the pits, and the soil surface is 5cm away from the edge of the pit;

[0024] (2) Pregermination and sowing: Sow the Hokkien nan seeds that have been germinated in the sand into the soil in the pits dug in step (1) on February 6, and sow 5 Hokkien fine varieties in each hole. The depth of seed burrowing into the soil is 2cm, and then it is covered with foreign soil;

[0025] (3) Weeding and soil covering: After the seedlings were unearthed, the first weeding was carried out in early June to remove the weeds and shrubs around Nannan and covered with foreign soil. The ...

Embodiment 2

[0029] This embodiment includes the following steps:

[0030] (1) Digging pits and filling soil: in the multi-species mixed forest with the distribution of Nannan, in 2017, a place with a stand canopy density of 0.4 was selected, and after partial site preparation, a pit with a length × width × depth of 20 cm × 20 cm × 20 cm was excavated. There are 30 pits, and the soil from the nearest Schima superba and Jujube mixed forest is filled into the pits, and the soil surface is 3cm away from the edge of the pit;

[0031] (2) Pregermination and sowing: Sow the Hokkien nan seeds that have been germinated in the sand into the soil in the pits excavated in step (1). Sow 5 Hokkien seeds in each hole, and the depth of the Hokkien seeds into the soil is 3cm ;

[0032] (3) Weeding and covering soil: After the seedlings are unearthed, the first weeding is carried out in early June to remove the weeds and shrubs around the Nannan and cover with foreign soil, which is the soil in the mixed ...

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PUM

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Abstract

A method for increasing the survival rate of seedlings under a phoebe bournei forest includes the following steps of firstly, digging pits and filling the pits with foreign soil; secondly, conductinggermination accelerating and sowing; thirdly, conducting weeding and earthing; fourthly, conducting seedling management. Soil preparing and pit digging are conducted in a sparse area in a phoebe bournei natural forest stand, backfilling is conducted with the foreign soil, the allelopathic inhibition effect of the soil in the original forest stand is avoided, the growth of newly-planted seedling root systems is promoted, the soil surface is 3-5 cm away from the edge of each soil pit during foreign soil backfilling, the root systems are protected against the influences of the drought of the summer and autumn soil surface layer by means of the later-period foreign soil coverage, and the survival of seedlings is ensured; on the basis of not influencing the original phoebe bournei natural forest stand, under-forest illumination conditions are sufficiently used for culturing phoebe bournei seedlings, the space layout refitting and adjustment of the forest stand can be conducted, and the problem of the high death rate of the phoebe bournei seedlings in the early stage can be solved; the method is simple in operation and low in cost, saves labor and materials and has good social benefits and ecological benefits, and under-forest updating is completed at a time.

Description

technical field [0001] The invention relates to a method for improving the survival rate of understory seedlings of rare and endangered tree species, in particular to a method for improving the survival rate of understory seedlings of Phoebe chinensis. Background technique [0002] Minnan (Phoebe bournei (Hemsl.) Yang), endemic to China, is a national second-class rare and endangered species. Fujian Nan belongs to Lauraceae, and Nan belongs to evergreen large tree, up to 20 meters high, 2.5 meters in diameter at breast height, straight trunk, dense crown, light yellow bark, peeling off in flakes. Branchlets pilose or nearly glabrous, winter buds taupe pilose. Leaves are leathery, lanceolate or oblanceolate, and panicles are born in the middle and lower leaf axils of new shoots, contracted and not expanded, hairy. Fruit ellipsoid or oblong. The flowering period is April, and the fruiting period is October-November. Minnan wood is fragrant and durable, light yellow, with a...

Claims

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Application Information

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IPC IPC(8): A01G17/00
Inventor 李铁华文仕知闵晓航
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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