Planting method of long-acting carbon neutralization forest in subtropical region

A subtropical region and planting method technology, applied in the field of long-term carbon-neutral forest planting, can solve the problems of not being able to realize standardized and large-scale production, and achieve the benefits of soil fertility restoration, stable stand structure, and good multifunctional benefits Effect

Active Publication Date: 2021-07-23
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Claims
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Problems solved by technology

[0006]Therefore, there is no planting method that can realize standardized and large-scale...

Method used

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  • Planting method of long-acting carbon neutralization forest in subtropical region
  • Planting method of long-acting carbon neutralization forest in subtropical region
  • Planting method of long-acting carbon neutralization forest in subtropical region

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Experimental program
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Embodiment 1

[0067] 1. The following terms and definitions apply to this embodiment.

[0068] 1.1. Mixed forest:

[0069] A forest consisting of two or more tree species.

[0070] 1.2. Large seedlings:

[0071] Seedlings that have been cultivated in the nursery for 2 years or more.

[0072] 2. Site quality requirements.

[0073] The land for afforestation of Chinese fir and Phoebe mixed forest should be selected in plots with a status index above 16, which is suitable for the growth of Phoebe. Both hills and low mountains are acceptable. Mountains are generally in the middle and lower parts of hillsides or valleys. The soil layer is deep, loose and fertile, and the red soil, yellow red soil and mountainous yellow soil with good ventilation and water permeability are better. The detailed conditions required for the transformation site are shown in Table 1.

[0074] Table 1 Selection conditions of artificially promoted regeneration of secondary forest land

[0075]

[0076]

[007...

Embodiment 2

[0123] Embodiment 2——Mixed forest of Phoebe pine:

[0124] Lanshan County Jingzhu Forest Farm was built in 1958. It is located in the southwest of Lanshan County, Yongzhou City. It is located in the Jiuyi Mountains. It belongs to the subtropical monsoon humid climate zone, with sufficient sunlight and long frost-free period. The annual average temperature is 17.8 ℃ and the annual average precipitation 1660mm. The soil of the forest farm is relatively fertile, and the terrain is mainly mountainous. The source of the Xiangjiang River is located in Yegouling within the farm. From 1979 to 1982, the forest farm built a mixed forest of Fujian pine and fir in the middle and lower part of the hillside of the farm, covering an area of ​​about 20 mu.

[0125] 1. Construction and management of Phoebe pine mixed forest

[0126] In the spring of 1979, 1-year-old Chinese fir seedlings were used on the felling site, and a Chinese fir forest was built at a density of 2m*2m, which was tended...

Embodiment 3

[0138] Embodiment 3——Fujian fir multi-layer heterogeneous forest:

[0139] Application case 1: The model application site is Jindong Forest Farm, Yongzhou City, Hunan Province. In 2012, the site index was selected to be above 16. After the second thinning of the fir forest about 15 years ago, about 30 fir trees with good growth were retained per mu and replanted. Minnan excellent provenance 2-year-old container seedlings, the density is 60 plants per mu. 1-4 years after the replanting, tend twice a year to remove the germination of Chinese fir; in 2020, a sample plot was re-examined for the multi-layered heterogeneous forest of Nannan fir, and the number of remaining plants is 82 per mu, including 52 of Nannan and Chinese fir. 30 plants. The control forest is divided into pure Nannan forest. The forest will be planted in the spring of 2012, and the existing forest will be re-examined in 2020. The number of reserved plants is 150 per mu. Other planting steps and methods are b...

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Abstract

The invention relates to a planting method of a long-acting carbon neutralization forest in a subtropical region. The method is characterized in that a mixed forest or a multi-layer different-age mixed forest is planted according to a ratio of China fir to phoebe bournei of (7-6): (3-4), and the method specifically comprises the following steps: (1) selecting a forest land, (2) cleaning the forest land and preparing the land, (3) preparing nursery stocks, (4) constructing the mixed forest, (5) performing tending management, (6) performing main cutting, and (7) performing plant diseases and pest control. According to the phoebe bournei and China fir mixed forest planting mode, the purpose of obtaining the long-acting carbon neutralization mixed forest through standardized and large-scale production is achieved, and the indexes such as the volume, the biomass and the carbon reserve of the mixed forest can all reach the better level. Meanwhile, forest planting benefits are improved, the operating cycle is prolonged, earth surface disturbance is reduced, the problems of soil fertility decline, productivity decline and the like caused by continuous planting of the China fir are solved, and sustainable utilization of forest land is facilitated. And through the mixed forest, a relatively complex and stable forest stand structure can be formed, the stress resistance and the stability of the forest stand can be improved, more ecological products can be provided, a better forest landscape can be built, and the wide application prospect is achieved.

Description

technical field [0001] The invention relates to tree planting, in particular to a method for planting long-acting carbon-neutral forests in subtropical regions. Background technique [0002] Forests have an important function of carbon fixation and oxygen release. For a long time, people generally believed that as long as they are forests, they can fix carbon and act as carbon sinks. In fact, forests also need respiration during the growth process, consuming oxygen and releasing carbon dioxide. When the amount of carbon dioxide released by respiration (including soil respiration) is greater than the amount of carbon dioxide fixed by plant photosynthesis in the early stage of the forest, especially the artificial forest ecosystem, the forest is the carbon source at this time. Only when the forest grows to a certain number of years, its ecological Forests can only act as carbon sinks when the amount of carbon dioxide fixed by the system exceeds the amount of carbon dioxide rel...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01B79/02A01G23/04A01G13/00A01G7/06A01C21/00
CPCA01G17/005A01B79/02A01G23/04A01C21/005A01G13/00A01G7/06Y02P60/40Y02A40/22
Inventor 何功秀张雨晨陈雨欣文仕知李铁华
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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