نتایج جستجو برای: quantitative geomorphology

تعداد نتایج: 317956  

Journal: :Journal of environmental biology 2008
Ramazan Ozcelik Altay Ugur Gul Jan Merganic Katarina Merganicova

We studied the effects of stand parameters (crown closure, basal area, stand volume, age, mean stand diameter number of trees, and heterogeneity index) and geomorphology features (elevation, aspect and slope) on tree species diversity in an example of untreated natural mixed forest stands in the eastern Black Sea region of Turkey. Tree species diversity and basal area heterogeneity in forest ec...

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Landslide can be considered as one of the important challenges of nature that affects natural areas and human societies. Several factors such as physical characteristics of the watershed, geology, soil structure, meteorology and hydrology are the most important environmental factors affecting in the landslide event. In order to reduce damage, landslide zoning have significant role in management...

Journal: :Eos, Transactions American Geophysical Union 2001

Journal: :Eos, Transactions American Geophysical Union 1998

2003
Jonathan D. Phillips

Nonlinearity is common in geomorphology, though not present or relevant in every geomorphic problem. It is often ignored, sometimes to the detriment of understanding surface processes and landforms. Nonlinearity opens up possibilities for complex behavior that are not possible in linear systems, though not all nonlinear systems are complex. Complex nonlinear dynamics have been documented in a n...

2011
William D. Heyman

Marine environments, key life-support systems for the earth, are under severe threat. Issues associated with managing these common property resources are complex and interrelated. Networks of marine reserves can be valuable for mitigating threats to marine systems, yet the successful design and implementation of such networks has been limited. Efficient ways to conserve marine environments are ...

2014
Qiang Li Zhongyi Li Jianhong Liang Yuanyuan He Jianhua Cao Qingjing Hu

To understand the effects of geomorphology and environment on the C character of soil organic carbon (SOC) in a hilly karst area, 26 soil samples were collected in 2008 in Nanchuan, Chongqing, SW China. The results showed that the δC-SOC values were between -18.66‰~-27.41‰, with the mean value of -23.3‰. The data firmly indicated that the modern soil organic carbon was the mixture of C3 and C4 ...

2006
D. P. RAO

India has made tremendous progress in the aerospace technology in the last two decades. We are one, among the worlds best in satellite and the remote sensing technology. We are also one of the developing countries facing the natural disasters and trying level best to mitigate their ill effects. At the best we can minimize their effect. To achieve this, we need to have a comprehensive management...

2007
Donald A. Walker J. C. Ritchie

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