نتایج جستجو برای: range land

تعداد نتایج: 776847  

Journal: :Interface focus 2011
H K Watson R A Diaz-Chavez

This paper synthesizes lessons learnt from research that aimed to identify land in the dryland regions of eight sub-Saharan African study countries where bioenergy feedstocks production has a low risk of detrimental environmental and socio-economic effects. The methodology involved using geographical information systems (GISs) to interrogate a wide range of datasets, aerial photograph and field...

2000
ARTUR KRAWCZYK

Satellite Radar Interferometry is a unique method that gives us a possibility to take measurements of a land subsidence on strictly determined huge areas and with precision state the time range. This method uses the phase signal difference between two SAR satellite images (Synthetic Aperture Radar). Until this time this method was successfully tested on underground coal mining areas in the Uppe...

2011
Lisa Oliver Nadine Schuurman Alexander Hall Michael Hayes

BACKGROUND Physical inactivity and associated co-morbidities such as obesity and cardiovascular disease are estimated to have large societal costs. There is increasing interest in examining the role of the built environment in shaping patterns of physical activity. However, few studies have: (1) simultaneously examined physical activity for leisure and utility; (2) selected study areas with a r...

2003
Peter H Verburg Jan R Ritsema van Eck Martin J Dijst Paul Schot

Land-use-change patterns are the result of the complex interaction between the human and the physical environment. Case studies of the determinants of land-use change can help to analyse which theory is appropriate in a particular region and stimulate the development of new theoretic understandings. In this paper an empirical method is presented to analyse the pattern of land-use change that al...

2009
Tom Kompas Tuong Nhu Che Ha Quang Nguyen Hoa Thi Minh Nguyen

Extensive land and market reform in Vietnam has resulted in dramatic increases in rice output over the past thirty years. The land and market reforms in agriculture were pervasive, moving the system of rice production from commune-based public ownership and control to one with effective private property rights over land and farm assets, competitive domestic markets and individual decision makin...

Journal: :LLC 2013
Shih-Pei Chen Yu-Ming Huang Jieh Hsiang Hsieh-Chang Tu Hou Ieong Ho Ping-Yen Chen

Land deeds were the only proof of ownership in pre-1900 Taiwan. They are indispensable for the studies of Taiwan’s social, anthropological, and economic evolution. We have built a full-text digital library that contains almost 40,000 land deeds. The deeds in our collection range over 250 years and are collected from over 100 sources. The unprecedented volume and diversity of the sources provide...

Journal: :Environmental Earth Sciences 2022

Determining the strata and surface movement of deep mining can provide a scientific basis for wellbore protection mine land utilization. In this paper, numerical simulation methods were employed to investigate stratum boundary curves caving backfilling mining. The findings be concluded in three aspects. First, boundaries all curved conformed an exponential function, but influence range differen...

2002
Guillermo A. Mendoza Alan B. Anderson George Z. Gertner

This paper describes multiple criteria models that can be used to assess land condition in general, and military training areas in particular. Three measures of land condition are used, namely: 1) erosion status, which is estimated based on the Revised Universal Soil Loss Equation (RUSLE), 2) percent vegetative cover, and 3) range condition. In addition, the paper also describes site-specific t...

2013
Y. Wang X. Yan

In order to estimate biogeophysical effects of historical land cover change on climate during last three centuries, a set of experiments with a climate system model of intermediate complexity (MPM-2) is performed. In response to historical deforestation, the model simulates a decrease in annual mean global temperature in the range of 0.07–0.14 C based on different grassland albedos. The effect ...

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