Method for constructing castanopsis fargesii broadleaf mixed forest for coniferous forest low-yield transformation

Abstract

The invention discloses a method for constructing a castanopsis fargesii broadleaf mixed forest for coniferous forest low-yield transformation, and aims to solve the two prominent technical problems that the quality of low-yield and low-efficiency transformed forest stands of coniferous artificial forests in the southern China is generally low and the transformed young forests have many tending times. The constructing method comprises the steps of comprehensive cleaning of afforestation land, hole-shaped soil preparation, organic base fertilizer application and topsoil backfilling, mixing and optimal configuration of planting points, selection of seedling planting and sowing seeds, mixed afforestation of planting seedlings and bud seedling sowing, hole expanding and soil loosening, field planting and fertilizer application, and hole expanding tending and fertilizer application in the second to third years after field planting. According to the constructing method, by means of seedling planting and afforestation of Castanopsis fargesii and schima superba, sowing and afforestation of Sassafras and optimal combination configuration of planting point spaces among tree species, the effects of effectively inhibiting weed miscellaneous irrigation are achieved, the tending labor and the constructing production cost are reduced, meanwhile, the requirement for illumination among different tree species in the young forest stand growth and development process is met, and the mixing effect of promoting young forest growth and interspecific relationship is created.

Description

technical field [0001] The invention belongs to the technical field of forest building, and in particular relates to a method for building a mixed forest of Castanopsis chinensis and broad-leaved forest for low-yield transformation of coniferous forest. Background technique [0002] At present, coniferous tree species account for more than 90% of my country's artificial timber forests, and pure forest operations are dominant, and negative ecological and economic problems are becoming increasingly prominent. For example, the resistance of the coniferous pure forest ecosystem is fragile, and pine wood nematode is rampant; the soil fertility of the forest land is seriously declining; the stand is low-yielding and inefficient, and the economic benefits are declining from generation to generation. This is contrary to the six objectives of my country's plantation cultivation orientation, fast growth, high yield, high quality, high efficiency and stability. The transformation of l...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of low-quality stands and high tending times of low-yield coniferous forests in southern China today, the present invention provides a method to improve the quality of afforestation production and the growth quality of stands, and at the same time reduce the number of times of young forest cultivation and tending and its tending. The construction method of Castanopsis chinensis broad-leaved mixed forest at low cost. This construction method optimizes the adaptation of different forest seedlings of Castanopsis chinensis, Schima superba and Sassafras to the forest land, and adopts the mixed ratio of 4:4:2 and the planting points between tree species. The optimal combination and configuration of space, and the use of differences in the growth and development of young forest stands for light requirements, to cultivate the mixed effect of promoting the growth of low-improved young forests and their interspecific relationships

Images