نتایج جستجو برای: vegetation type

تعداد نتایج: 1384618  

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2014
Tarciso C C Leão Carlos R Fonseca Carlos A Peres Marcelo Tabarelli

Understanding how plant life history affects species vulnerability to anthropogenic disturbances and environmental change is a major ecological challenge. We examined how vegetation type, growth form, and geographic range size relate to extinction risk throughout the Brazilian Atlantic Forest domain. We used a database containing species-level information of 6,929 angiosperms within 112 familie...

Journal: :Forests 2021

Increasing fire size and severity over the last few decades requires new techniques to accurately assess canopy fuel conditions change larger areas. This article presents an analysis on vegetation changes by mapping types (FT) based conditional rules according Prometheus classification system, which typifies vertical profile of cover for management ecological purposes. Using multi-temporal LiDA...

Journal: :FEMS microbiology ecology 2015
Francisco Lloret Stefania Mattana Jorge Curiel Yuste

This study reports the relationship between the diversity and functioning of fungal and bacterial soil communities with vegetation in Mediterranean woodland that experienced severe die-off after a drought episode. Terminal restriction fragment length polymorfism (TRFLP) was used to describe microbial community structure and diversity five years after the episode in different habitats (Juniperus...

2007
Michael Lew - Smith

Question: How can the U.S. National Vegetation Classification (USNVC) serve as an effective tool for classifying and mapping vegetation, and inform assessments and monitoring? Location: Voyageurs National Park, northern Minnesota, U.S.A and environs. The park contains 54 243 ha of terrestrial habitat in the sub-boreal region of North America. Methods: We classified and mapped the natural vegeta...

Habib Yazdanshenas Hossein Arzani Hossein Azarnivand Malihe Nasiri Mohammad jafari

Understanding the plant species diversity could be used as an importantindicator applied for the natural areas management. The aim of this study was toinvestigate the relationships between soil characterizes with distribution and diversity ofplant in vegetation types in Karvan district (located in west of Isfahan province). For thispurpose, three vegetation types were selected as follows: Scari...

2016
Lie Xiao Guo-Bin Liu Sha Xue

Soil microbial communities are very sensitive to changes in land use and are often used as indicators of soil fertility. We evaluated the microbial communities in the soils of four types of vegetation (cropland (CP), natural grassland (NG), broadleaf forest (BF) and coniferous forest (CF)) at depths of 0–10 and 10–20 cm on the Loess Plateau in China using phospholipid fatty acid (PLFA) profilin...

Journal: :Remote Sensing 2009
Christian Hüttich Ursula Gessner Martin Herold Ben J. Strohbach Michael Schmidt Manfred Keil Stefan W. Dech

The characterization and evaluation of the recent status of biodiversity in Southern Africa’s Savannas is a major prerequisite for suitable and sustainable land management and conservation purposes. This paper presents an integrated concept for vegetation type mapping in a dry savanna ecosystem based on local scale in-situ botanical survey data with high resolution (Landsat) and coarse resoluti...

2006
S. Yokota K. Takeuchi

The purpose of this study is to clarify the relationship between the distribution of small-scale green spaces and butterfly assemblages in urbanizing areas located north-east of Ichikawa City. Landscape indices of green cover distribution with a diversity index H of vegetation types and a number of different vegetation types, GCI (Green Cluster Index) of each vegetation type and average minimum...

Journal: :Journal of environmental quality 2007
Paul M Mayer Steven K Reynolds Marshall D McCutchen Timothy J Canfield

Riparian buffers, the vegetated region adjacent to streams and wetlands, are thought to be effective at intercepting and reducing nitrogen loads entering water bodies. Riparian buffer width is thought to be positively related to nitrogen removal effectiveness by influencing nitrogen retention or removal. We surveyed the scientific literature containing data on riparian buffers and nitrogen conc...

Journal: :Interactive cardiovascular and thoracic surgery 2012
Kelechi E Okonta Yahaya B Adamu

A best evidence topic in cardiac surgery was written according to a structured protocol. The question addressed was whether the of vegetations in endocarditis is an indication for surgery. Altogether, 102 papers were found using the reported search; 16 papers were identified that provided the best evidence to answer the question. The authors, journal, date, country of publication, patient group...

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