نتایج جستجو برای: riparian parks

تعداد نتایج: 12826  

Journal: :Journal of Insect Science 2005
K.A. Subramanian K.G. Sivaramakrishnan Madhav Gadgil

The impact of riparian land use on the stream insect communities was studied at Kudremukh National Park located within Western Ghats, a tropical biodiversity hotspot in India. The diversity and community composition of stream insects varied across streams with different riparian land use types. The rarefied family and generic richness was highest in streams with natural semi evergreen forests a...

2000
Sherri L. Johnson Frederick J. Swanson Gordon E. Grant Steven M. Wondzell

Large ̄oods can have major impacts on riparian forests. Here we examine the variability and spatial distribution of riparian forest responses along eight thirdto ®fth-order streams following a large ̄ood ( 100 year recurrence interval) in the Cascade Mountain Range of Oregon. We categorized disturbance intensity (physical force) exerted on riparian trees during ̄oods into three classes: (i) pur...

Journal: :Conservation biology : the journal of the Society for Conservation Biology 2006
Gordon H Reeves Peter A Bisson Bruce E Rieman Lee E Benda

We reviewed the behavior of wildfire in riparian zones, primarily in the western United States, and the potential ecological consequences of postfire logging. Fire behavior in riparian zones is complex, but many aquatic and riparian organisms exhibit a suite of adaptations that allow relatively rapid recovery after fire. Unless constrained by other factors, fish tend to rebound relatively quick...

1989
BOONE KAUFFMAN

-Riparian ecosystems are sites of important biogeochemical processes that affect the composition and structure of the streamside biota as well as aquatic systems. Microbial activity, coupled with the slow diffusion of oxygen in waterlogged riparian soils, causes anaerobic conditions and reduction in reduction­ oxidation (redox) potential. Redox potentials provide a useful measurement as to the ...

2015
Young-Chang Lee Keun-Ho Kim Vincenzo Torretta

Urban parks and green spaces support a wide array of species and play an important role in long-term sustainability. This study analyzed the needs and attitudes of citizens towards urban parks and green spaces in order to provide information for setting the future direction of urban sustainability to maximize quality of life. A questionnaire survey was conducted to analyze the general character...

2014
Pornwiwan Pothasin Stephen G. Compton Prasit Wangpakapattanawong Maharaj K. Pandit

Fig trees (Ficus) are often ecologically significant keystone species because they sustain populations of the many seed-dispersing animals that feed on their fruits. They are prominent components of riparian zones where they may also contribute to bank stability as well as supporting associated animals. The diversity and distributions of riparian fig trees in deciduous and evergreen forests in ...

ژورنال: علوم آب و خاک 2016
حسینی, علیرضا, شفاعی بجستان, محمود,

Assessing the root system and its tensile strength is necessary for determine the impact of roots in increasing the soil shear strength. The present study aims to investigate effects of slope and flow of riverbank on root system of riparian POPULOYS trees. In a relatively direct interval, 6 riparian POPULOYS trees were chosen on the slope of Simereh riverbank. To assess the root system, the cir...

2003
Zhujun Zhang Zemin Niu

The paper discusses the roles of university science parks in China during the economic transfer time on the investigation of 45 university science parks. The construction and development of university science parks affects the industrialization and commercialization of Hi-tech research findings and the development of regional economy. This paper also studies successful experiences of university...

2006
A. G. Merrill T. L. Benning

Nitrogen (N) inputs to the world’s aquatic ecosystems have increased over the past 100 years. Riparian zones and other wetlands are known to remove N from ground and surface waters before they enter lakes and streams. However, the effect of riparian wetlands on water quality has been shown to differ dramatically among sites. Sources of landscape variation in riparian N dynamics have been poorly...

2004
Alex Held

There is an increasing demand amongst resource managers for cost-effective watershed-scale inventories of riparian buffer condition and function. Recent developments in image processing software and decreasing satellite imagery costs enable a new methodology that can help meet this demand. ASTER satellite imagery, which has 15 metre pixel size, is processed with image segmentation software to i...

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