نتایج جستجو برای: chronosequence

تعداد نتایج: 759  

2017
Chenggang Liu Jiaping Pang Martin R. Jepsen Xiaotao Lü Jianwei Tang

Carbon Stocks across a Fifty Year Chronosequence of Rubber Plantations in Tropical China Chenggang Liu1 ¶, Jiaping Pang1, 2 ¶, Martin R. Jepsen3, Xiaotao Lü4, Jianwei Tang1,* 1 Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303, China; 2 Institute of Geographic Sciences and Natural Resources Resea...

Journal: :The Science of the total environment 2009
Lauric Cécillon Nathalie Cassagne Sonia Czarnes Raphaël Gros Michel Vennetier Jean-Jacques Brun

We investigated the power of near infrared (NIR) analysis for the quantitative assessment of soil quality in a wildfire chronosequence. The effect of wildfire disturbance and soil engineering activity of earthworms on soil organic matter quality was first assessed with principal component analysis of NIR spectra. Three soil quality indices were further calculated using an adaptation of the meth...

1998
A. Saldana A. Stein J. A. Zinck

This paper applies statistical and geostatistical procedures to a soil chronosequence on the Ž . terraces of the Henares River NE Madrid to analyse the spatial distribution of several soil properties and use the contribution of geostatistics to establishing a landscape evolution model of the area. Particle-size distribution, pH, calcium carbonate and organic carbon were analysed. Statistical pr...

Journal: :Science 2006
Bill Shipley Denis Vile Eric Garnier

We developed a quantitative method, analogous to those used in statistical mechanics, to predict how biodiversity will vary across environments, which plant species from a species pool will be found in which relative abundances in a given environment, and which plant traits determine community assembly. This provides a scaling from plant traits to ecological communities while bypassing the comp...

2016
Ning Hu Hui Li Zheng Tang Zhongfang Li Jing Tian Yilai Lou Jianwei Li Guichun Li Xiaomin Hu

We examined community diversity, structure and carbon footprint of nematode food web along a chronosequence of T. Sinensis reforestation on degraded Karst. In general, after the reforestation: a serious of diversity parameters and community indices (Shannon-Weinier index (H'), structure index (SI), etc.) were elevated; biomass ratio of fungivores to bacterivores (FFC/BFC), and fungi to bacteria...

2005
Dimitris Kazanis Margarita Arianoutsou

The vegetation composition of a post-fke succession in Aleppo pine forests of Anica, Greece, was studied by a synchronic method. The sites form a post-fire chronosequence and have typical Mediterranean climate. Data on the flora of the burned sites, growth and life forms of the various plant taxa, as weU as on vegetation smcture are provided. The burned ecosystems recovered quite rapidly. Durin...

2012
Lindsay A. Chiono Kevin L. O’Hara Michael J. De Lasaux Glenn A. Nader Scott L. Stephens

In dry western Unites States forests where past resource management has altered the ecological role of fire and stand characteristics alike, mechanical thinning and prescribed burning are commonly applied in wildfire hazard abatement. The reduced surface fuel loads and stand structures resulting from fuels modifications are temporary, yet few studies have assessed the lifespan of treatment effe...

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