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Undergrowth

About: Undergrowth is a research topic. Over the lifetime, 795 publications have been published within this topic receiving 11911 citations. The topic is also known as: understorey & underbrush.


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Journal ArticleDOI
TL;DR: Wang et al. as discussed by the authors investigated the canopy structure and determined understory light environment of 23 canopy tree species which were mostly applied in urban green land in Guangdong province using hemispherical photography.
Abstract: To give some scientific references for the multi-level configuration of plant community in urban green land, especially for how to choose undergrowth plants which have different light habits, this research investigated the canopy structure and determined understory light environment of 23 canopy tree species which are mostly applied in urban green land in Guangdong province using hemispherical photography. The results showed that understory light environment was influenced by canopy structure significantly and there were significant positive correlation (P

1 citations

01 Jan 2003
TL;DR: The results indicate that there was no local specialization in the plasticity of characters related to clonal growth and clonal morphology in forest gap and forest undergrowth in Potentilla reptans var.
Abstract: A reciprocal transplant-replant experiment was carried out to investigate clonal plasticity and local specialization of forest gap population and forest undergrowth population of a stoloniferous herb Potentilla reptans var. sericophylla in the Pinus tabulaeformis forest at Dongling Mountain, Beijing. The experiment was conducted from 19 Mayto 23 August 1996 in Dongling Mountain (115°26' - 115°30' E, 40°00' -40°02' N), 114 km southwest of Beijing. At the beginning of the experiment, one forest gap population and one forest undergrowth population of Potentilla reptans var. sericophylla in the Pinus tabulaeformis forest was selected, In each population, 120 ramets of Potentilla reptans var. sericophylla were selected at random as target plants. Target plants experienced one of four treatments during the experiment. 1) Half of the target ramets in the forest gap population were transplanted to the forest understorey. 2) The other half in the forest gap was replanted in their native site. 3) Similarly, half of the target ramets in the forest undergrowth were transplanted to the forest gap. 4) The other half in the forest understorey was replanted in their native site. The distance between the two field experiment sites was about 100 m. The gap was about 15 years old. During the experiments, the experimental plants all grew naturally. There were three times of harvesting on 23 June, 23 July and 23 August, 1996. hi each of the harvests , 20 target ramets were chosen randomly and harvested for each of the treatments. The genet biomass, ramet number, blade length, blade width, petiole length, stolon internode length and total stolon length were measured after each harvest to investigate clonal plasticity and local specialization. A One-way and a Two-way ANOVA, with the native habitat and the growing habitat of the experiment plants as the main effects (GLM procedure, SAS), were applied for analyzing responses in all measured characters. The results show that the biomass, number of ramets and total stolon length of the experimental plants under the forest undergrowth was smaller than those under the forest gap. Petiole length, leaf blade width, leaf blade length and internode length did not differ between the different growing habitats. The plants from the forest gap grew better than those from the forest undergrowth. These results indicate that there was no local specialization in the plasticity of characters related to clonal growth and clonal morphology in forest gap and forest undergrowth. Clonal plasticity rather than local specialization is the main strategy of P. reptans var. sericophylla in heterogeneous habitats.

1 citations

01 Jan 2006
TL;DR: The characteristics of species diversity of different types of artificial Pelliottii forest communities were studied in this article, and the results were as follows: Firstly, the species such as Symplocos baniculata,Smilax china,Rubus corohorifolius, Vitex negundo L., Rosa cymosa etc had a comparable higher IV(important value index) in every community type.
Abstract: The characteristics of species diversity of different types of artificial P.elliottii forest communities were studied. The results were as follows: Firstly,the species such as Symplocos baniculata,Smilax china,Rubus corohorifolius,Vitex negundo L.,Rosa cymosa etc had a comparable higher IV(important value index) in every community type.Secondly,the richness index of shrub layer species of different community types ranged from 3 to 28,and the evenness index from 0.629 0 to 0.954 7;the Simpson index from 0.606 5 to(0.933 8),the Shannon-Wiener index from 1.459 2 to 3.980 9.Thirdly,The species richness index and Shannon-Wiener index of type Ⅲ were significantly lower than those of the other two types,but the Simpson index order was typeⅠtype Ⅲ typeⅡand the evenness index order was type Ⅲ typeⅠ typeⅡ.Fourthly,for type Ⅲ,suitable measures should be taken,incldding introducing endurable species,such as,Symplocos baniculata,Smilax china,Gardenia jasminoides.etc.to improve the recovery course of undergrowth(vegetation).

1 citations

Patent
08 May 2018
TL;DR: In this paper, a fast reconstruction method for artificial undergrowth vegetations is proposed, which consists of the following steps that firstly, after artificial afforestation is finished, undergrowth soil is turned over, stone with the diameter larger than 5 cm is removed, xylophyta roots remaining in the soil are removed, and land formation is conducted.
Abstract: The invention provides a fast reconstruction method for artificial undergrowth vegetations. The method comprises the following steps that firstly, after artificial afforestation is finished, undergrowth soil is turned over, stone with the diameter larger than 5 cm is removed, xylophyta roots remaining in the soil are removed, and land formation is conducted; secondly, sowing is conducted in an interlaced intercropping mode, bromus riparius seeds and alfalfa seeds are selected to be sown, the weight ratio of the bromus riparius seeds to the alfalfa seeds is (1.5-2):1, and the total sowing amount is 4.5-6 kg/mu; thirdly, irrigation is conducted till the wettability of the soil reaches 20 cm or above. According to the method, mixed sowing of bromus riparius and alfalfa is conducted, the advantages of the bromus riparius seeds and the advantages of the alfalfa seeds are both considered, the interlaced intercropping mode is adopted, roots are staggered vertically and horizontally, a compactand firm underground root network system can be formed, and the water and soil conservation efficiency of the artificial undergrowth vegetations is improved. Moreover, the reconstruction method is low in cost, low in energy consumption, free of pollution, quick in effect taking, and particularly suitable for reconstruction of the artificial undergrowth vegetations in north cold and drought regions.

1 citations

Journal ArticleDOI
TL;DR: The South and Central Asian MAB Meeting of Experts on Environmental Conservation, Management and Research, Hikkaduwa, Sri Lanka 15-18 October 2002 as mentioned in this paper, was held in Sri Lanka.
Abstract: Doi: 10.4038/jnsfsr.v31i1-2.3034 J. Natn. Sci. Foundation Sri Lanka 2003 31(1&2): 215-229 Proceedings of the South and Central Asian MAB Meeting of Experts on Environmental Conservation, Management and Research, Hikkaduwa, Sri Lanka 15-18 October 2002

1 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202337
202293
202133
202030
201934
201836