Effect of Close-to-Nature management on the natural regeneration and species diversity in a masson pine plantation

Abstract

Choerospondias axillaris) 、水锦树( Wendlandia uvariifolia) , 枫香( Liquidambar formosana) 、破布木( Cordia dichotoma) 、白背桐( Mallotus paniculatus) 等。 新增加到乔木层的物种大都为之前 群落中灌木层的种类,主要有三桠苦( Evodia lepta) 、鸭脚木( Schefflera minutistellata) 、白花龙( Styrax faberi) 、中平树( Macaranga denticulata) 、 黄 毛 榕 ( Ficus esquiroliana ) 、 华 南 毛 柃 ( Eurya ciliata ) 、 罗 浮 柿 ( Diospyros morrisiana ) 、 猴 耳 环 ( Pithecellobium clypearia) 、木姜子( Litsea pungens) 、毛黄肉楠( Actinodaphne pilosa) 等。 ( 2) 间伐处理前,600 m 2 样方中出现的灌草种类数量为 (24.63依4.24) 种,间伐处理后,600 m 2 样方中出现的灌草种类数量为(27.58依3.80) 种,不同间伐强度处理后林下灌草的优势种与 间伐前大致相同,灌木层优势种为三桠苦,草本层优势种为弓果黍( Cyrtococcum patens) 。 不同间伐强度处理林分间,灌木层和 草本层的物种丰富度指数、Shannon鄄Wiener 指数、Simpson 指数和 Pielou 指数均无显著差异,且与间伐前林分也无显著差异。

A Decade of Close-to-Nature Transformation Alters Species Composition and Increases Plant Community Diversity in Two Coniferous Plantations

“…However, the close-to-nature transformation did not affect the shrub and herb diversity. This is contrary to some studies (Zhang et al, 2011;Luo et al, 2013). The effects of forest management on plant diversity in the understory layers showed a long-term and continuous pattern (You et al, 2016).…”

“…The close-to-nature transformation has become an approach to meet the criteria for sustainable forestry (Larsen and Nielsen, 2007) and has a history of more than 100 years (Schütz, 1999;Brang et al, 2014). The species diversity and ecosystem services in the coniferous plantations have been significantly increased by this forest management approach (Knoke et al, 2008;Luo et al, 2013;Ming et al, 2019).…”

The structure and soil characteristics of a Pinus tabuliformis planted forest after 60 years of natural development in North China

“…The broadleaved trees used in this process are primarily native species (Lu 2006). The near-natural transformation of conifer planted forests can change the composition and structure of forests and enhance biodiversity as has been shown for Pinus massoniana Lamb.…”

“…However, it has been recognized that monocultures and unreasonable stand structure of planted forests have inevitable disadvantages, which include low biodiversity, poor stress-resistance and stability, and forest degradation as compared to natural forests (Zhang et al 2000;Shi et al 2013). To overcome these disadvantages and improve ecosystem functioning of planted forests, near-natural transformations of planted forests have been implemented in many regions of the world (Lu 2006). This new silvicultural system transforms planted forests into near-native forests according to natural forest succession processes that are designed specifically to enhance biodiversity, improve forest structure, sustain ecosystem functions (diversity, productivity and nutrient cycling), and identifies sustainable levels of use for a broad range of renewable resources (Nakamura et al 2005;Zhang et al 2000).…”

Nitrogen and phosphorous dynamics with stand development of Pinus massoniana plantations in Southeast China

“…massoniana Lamb. is an important pioneer and afforestation species in south China (Luo et al, 2013), and it has been widely planted for timber production and land restoration (Dou et al, 2013;Liu et al, 2016). Subtropical plantations are generally limited by P due to the low soil P availability, and it appears that it is a shift from N limitation to P limitation during forest stand development (Wu et al, 2020).…”