نتایج جستجو برای: per capita arable land

تعداد نتایج: 549468  

2016
Li Jiang Zhihui Li

China’s urbanization has resulted in significant changes in agricultural land use. However, understanding of the linkages between urbanization and fertilizer use intensity is limited. Using county-level panel data for Henan Province, 1995–2008 and panel econometric models, we investigate the impact of urbanization and other socioeconomic factors on fertilizer use intensity, with a focus on the ...

2006
Mohammad Alauddin Derek Headey

With persistent population growth, a dwindling supply of arable land per capita, and the relatively high income elasticity of demand for food in developing countries, there is a growing need for food supply increases to originate from growth in productivity rather than expansions in inputs. In this paper the authors construct levels of total factor productivity in agriculture for 111 countries ...

Journal: :Sustainability 2023

Arable land is the natural resource of food production, plays a key role in safe guarding people’s livelihood, maintaining social stability, and ecological balance. In context great challenge rapid loss arable growth demand due to socio-economic development, scientific forecasting supply, can clarify conservation pressure regional land, provide reference for formulating effective policies, ensu...

2013
Dagmar Haase Nadja Kabisch Annegret Haase

In European cities, the rate of population growth has declined significantly, while the number of households has increased. This increase in the number of households is associated with an increase in space for housing. To date, the effects of both a declining population and decreasing household numbers remain unclear. In this paper, we analyse the relationship between population and household n...

2015
Yao Qian Lina Tang Quanyi Qiu Tong Xu Jiangfu Liao Abdisalan Mohamed Noor

Land carrying capacity (LCC) explains whether the local land resources are effectively used to support economic activities and/or human population. LCC can be evaluated commonly with two approaches, namely ecological footprint analysis (EFA) and the index system method (ISM). EFA is helpful to investigate the effects of different land categories whereas ISM can be used to evaluate the contribut...

2012
Amir Kassam

The per capita availability of agricultural land was 0.43 ha in 1960 and declined to 0.26 ha in 1999. Significant per capita declines are projected in the availability of another essential natural resource for agriculture water. At the same time, the world must increase its food production by some 70% by 2050 to meet the needs of its growing population projected to reach 9.2 billion then [Bruin...

Journal: Desert 2012
H. Ahmadi H. Azarnivand M. Tazeh M.R. Ekhtesasei

There have been different indices identified for desertification. Among these is technogenic desertification index which seems much more efficient. In this study, some of technogenic desertification indices were studied and evaluated. First land use maps of the region were taken from IRS-PAN satellite image and aerial photos analysis. After evaluating the area of different uses, lands that had ...

Journal: :Strategic planning for energy and the environment 2023

The ecological environment of China is facing much more pressure with the continuous growth population and energy usage. pays attention to improving quality civilization development in situation. key problem construct a scientific reasonable comprehensive evaluation index system guiding improvement. This paper creates based on Pressure-State-Response (PSR) framework uses hybrid model entropy we...

Journal: :iranian journal of public health 0
a.h. mahvi h. khorsandi

one of the most important parameters essential in different water supplies, treatment, transfer and distribution projects, is water consumption per capita. but unfortunately in many cases, statistics and date available in texts or irrelevant samplings are used. varamin is a region located in south east of tehran. among the most important problems in this region, insufficiency of personnel prolo...

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