不同抚育措施对红花荷林下植物多样性的影响  

Effects of different tending measures on understory plant diversity in a Rhodoleia championii Hook. f.plantation

作　　者：王敏 邹晓君 叶伯坚 蔡俊贤 李超 何增丽 Wang Min;Zou Xiaojun;Ye Bojian;Cai Junxian;Li Chao;He Zengli(Maintenance Center of Yunyong Ecological Forest,Foshan,Guangdong 528518;College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou,Guangdong 510642)

机构地区：[1]佛山市云勇生态林养护中心,广东佛山528518 [2]华南农业大学林学与风景园林学院,广东广州510642

出　　处：《热带林业》2020年第3期30-34,共5页Tropical Forestry

基　　金：佛山市科学技术局项目(2017AB004124):佛山市云勇生态林养护中心生态景观林抚育技术研究。

摘　　要：对广东省佛山市云勇生态林养护中心的红花荷林进行研究疏伐+施肥和疏伐处理,以了解不同抚育措施对红花荷林下植物多样性的影响。在红花荷林设置对照(CK)、疏伐施肥和疏伐样地,研究了不同处理样地的林下植物多样性。研究结果表明,CK、疏伐施肥样地和疏伐的样地草本层物种数分别为11种、11种和8种,林下灌木物种数分别为5种、11种和7种。草本层物Simpson多样性指数和均匀度指数Jsi为CK>疏伐施肥>疏伐,Shannon-Wiener多样性指数和均匀度指数Jsw疏伐施肥>CK>疏伐。林下灌木植物Simpson多样性指数、Shannon-Wiener多样性指数、均匀度指数Jsw和Jsi均为疏伐施肥>疏伐> CK。总体来看,与CK相比,疏伐施肥和疏伐明显提高了林下灌木多样性和均匀度,疏伐施肥比疏伐的效果更好。To understand the effects of tending measures on undergrowth diversity on Rhodoleia championii Hook. f. plantations at Maintenance Center of Yunyong Ecological Forest,richness and abundance of undergrowth of the R. championii plantations treated with +fertilizing and thinning were measured. Three plots included a control(CK),fertilizing+thinning and thinning were established in the R. championii plantation,respectively. Specie number,coverage,total plant number and average height of shrub-grass layer under canopy of the R. championii plantations were investigated before thinning and fertilizing and two years after thinning and fertilizing measures. Diversity and evenness indices were used to study the species diversity of the plantation. Species numbers were 11,11 and 8 in herb layer,and 5,11 and 7 in shrub layer at CK, fertilizing+ thinning plot and thinning plot,respectively. The Shannon diversity index and even index Jsw decreased in the order of CK> fertilizing+thinning plot > thinning plot,whereas Shannon-Wiener diversity index and even index Jsi decreased in the order of CK > fertilizing+ thinning plot > thinning plot in the herb layer;the Shannon di versity index,Shannon-Wiener diversity index,even indices Jsw and Jsi decreased in the order of fertilizing+ thinning plot > thinning plot > CK in the shrub layer plot. Fertilizing+thinning and thinning induced higher shrub diversity than CK,and the role of fertilizing+thinning in shrub diversity understory diversity was strong compared to thinning.

关 键 词：红花荷 人工林 抚育 林下植物多样性 

分 类 号：S753.5[农业科学—森林经理学]