Transformation technology of south subtropical masson pine artificial pure forest to masson pine-broadleaved uneven-aged stratified mixed stand

Abstract

The invention discloses a transformation technology of south subtropical masson pine artificial pure forest to a masson pine-broadleaved uneven-aged stratified mixed stand, and belongs to the technical field of forestry ecology. The technology is a management model which transforms a masson pine even-aged single-storied artificial pure forest into the masson pine-broadleaved uneven-aged stratifiedmixed stand in an early stage, and performs cultivation in a later stage to form a close-to-nature multi-functional selection forest using masson pines as a constructive species through technical measures of using a current masson pine plantation as a management object, forming forest gaps through appropriate thinning, replanting an indigenous broad-leaved tree species under the forest gaps, utilizing natural force to start natural regeneration and the like. The technology disclosed by the invention can change the problems that a traditional masson pine artificial pure forest has a large ecological risk, poor structural stability, and low economic benefits, and through reasonable transformation, the masson pine-broadleaved uneven-aged stratified mixed stand having stable ecological performance and aiming to cultivate large-diameter timber of the masson pines and precious tree species can be formed.

Description

technical field [0001] The invention belongs to the field of plant cultivation methods, and in particular relates to a technology for transforming an artificial pure forest of masson pine in the subtropics into a stratified mixed forest of different ages of pine and broad. Background technique [0002] Masson pine is the most important fast-growing and high-yielding timber tree species in the South subtropics. At present, the damage to the masson pine natural forest is relatively serious, and the masson pine artificial forest is replaced. However, due to the single species of large-scale masson pine plantations, the probability of occurrence of diseases, insect pests and fires is greatly increased, and the forest facies structure is single, resulting in poor soil and water conservation, forest land fertility decline, ecological environment deterioration and many other problems. With the development of economy, the ecological function of plantation has been paid more and mor...

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned problems, the present invention provides a transformation technology from a pure southern subtropical masson pine artificial forest to a multi-layered mixed forest of different ages. For problems such as masson pine plantations, take the existing masson pine plantation as the management object, form gaps through appropriate thinning, replant native broad-leaved tree species under the gaps, use natural forces to start natural regeneration and other technical measures, and artificially plant a single layer of masson pine with the same age. A management model in which the pure forest is transformed into a pine and broad multi-layered mixed forest of different ages in the early stage, and then cultivated into a near-natural multi-functional selective cutting forest with Pinus massoniana as the construction species