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Showing items 1 through 9 of 14.
  1. Library Resource
    Journal Articles & Books
    September, 2009
    China

    Taking the Jiuquan City, Guansu Provice, China as an example, according to the 1997-2007 Gansu Statistical Yearbook, Jiuquan Statistical Yearbook, the Second National Land Investigation in Jiuquan City and other relevant statistical data, models of minimum cultivated area per capita and pressure index of cultivated land are used based on food security.

  2. Library Resource
    Journal Articles & Books
    December, 2016
    China

    Farmland resources in mountainous areas are important for regional food security and ecological security. Studies concerning changes in farmland use in mountainous areas are of considerable significance in China. Here, we analyzed marginalization characteristics of farmland in Renhuai city from 2005 to 2011 and driving factors using land information systems, surveys of farmer households and statistical data. Our results indicate that from 2005 to 2011, 3095.76 hm² of farmland was converted to forest land and natural reserve, accounting for 5.45% of the total farmland area.

  3. Library Resource
    Journal Articles & Books
    December, 2014
    China

    A large number of mathematical models have been developed to support land resource allocation decisions and land management needs; however, few of them can address various uncertainties that exist in relation to many factors presented in such decisions (e.g., land resource availabilities, land demands, land-use patterns, and social demands, as well as ecological requirements). In this study, a multi-objective interval-stochastic land resource allocation model (MOISLAM) was developed for tackling uncertainty that presents as discrete intervals and/or probability distributions.

  4. Library Resource
    Journal Articles & Books
    December, 2014
    China, Norway

    Efficient plant nutrition and good agronomical practices are essential to meet future challenges in agriculture, while high land productivity is an obvious measure to integrate food security and environment protection. However, nutrient management in agriculture, including fertilizer applications and issues linked to nutrient losses, are highly complex due to multidimensional variability. Thus, robust systems of measurements and documentation, including planning, are required in order to support decision-making.

  5. Library Resource
    Journal Articles & Books
    December, 2013
    China

    The northeastern China is an important commodity grain region in China, as well as a notable corn belt and major soybean producing area. It thus plays a significant role in the national food security system. However, large-scale land reclamation and non-optimum farming practices give rise to soil degradation in the region. This study analyzed the food security issues coupled with global climate change in the northeastern China during 1980–2000, which is the period of modern agriculture.

  6. Library Resource
    Journal Articles & Books
    December, 2014
    China, Global

    Global land use structure is changing rapidly due to unceasing population growth and accelerated urbanization, which leads to fierce competition between the rigid demand for built-up area and the protection of cultivated land, forest, and grassland. It has been a great challenge to realize the sustainable development of land resources.

  7. Library Resource
    Journal Articles & Books
    December, 2014
    Russia, China

    Detailed comparative analysis of basic lines of agrarian transformations in China and Russia has been done, its results have been analysed. Not only conceptual differences of the agrarian policy in those countries are demonstrated, but also consequences of concrete political decisions for the development of the branch. The differences are stipulated mainly by two groups of factors. The first of them is the opposite approaches to transforming land relations and the entire system of agrarian relations.

  8. Library Resource
    Journal Articles & Books
    December, 2015
    China

    A large number of mathematical models have been developed for supporting optimization of land-use allocation; however, few of them simultaneously consider land suitability (e.g., physical features and spatial information) and various uncertainties existing in many factors (e.g., land availabilities, land demands, land-use patterns, and ecological requirements). This paper incorporates geographic information system (GIS) technology into interval-probabilistic programming (IPP) for land-use planning management (IPP-LUPM).

  9. Library Resource
    Journal Articles & Books
    December, 2016
    China

    Rural construction land consolidation (RCLC) is an innovative approach to coordinating the outmigration of a rural population and the increase in rural housing land, thereby protecting farmland and ensuring food security, adding to urban construction land quotas, and improving the rural habitat environment in China. Since 2005, several different models or approaches to RCLC have been practiced by local governments.

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