Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 184.
  1. Library Resource

    Forests

    Publication évaluée par des pairs
    janvier, 2022
    Chine

    A landslide is a type of geological disaster that poses a threat to human lives and property. Landslide susceptibility assessment (LSA) is a crucial tool for landslide prevention. This paper’s primary objective is to compare the performances of conventional shallow machine learning methods and deep learning methods in LSA based on imbalanced data to evaluate the applicability of the two types of LSA models when class-weighted strategies are applied.

  2. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2020
    Chine

    Ecological degradation caused by rapid urbanisation has presented great challenges in southern China. Fractional vegetation cover (FVC) has long been the most common and sensitive index to describe vegetation growth and to monitor vegetation degradation. However, most of the studies have failed to adequately explore the complexity of the relationship between fractional vegetation cover (FVC) and impact factors.

  3. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2019
    Chine

    Food security is the basis of social stability and development. Maintaining sufficient amounts of arable land is essential for China’s food security. In this paper, we consider the relationship between arable land demand to grain demand and production capacity. The changes in national population, grain production, and consumption from 2000 to 2015 are analyzed. Then, we forecast the respective possible changes in the future and accordingly forecast the arable land demand in different possible situations.

  4. Library Resource
    Rapports et recherches
    décembre, 2008
    Bangladesh, Bénin, Bhoutan, Bolivie, Botswana, Brésil, Burkina Faso, Tchad, Chili, Chine, Colombie, Équateur, Égypte, Érythrée, Éthiopie, Ghana, Honduras, Inde, Iran, Kenya, Laos, Mali, Mozambique, Népal, Nicaragua, Niger, Nigéria, Pérou, Afrique du Sud, Soudan, Thaïlande, Togo, Ouganda, Viet Nam, Zimbabwe, Afrique occidentale, Afrique centrale, Afrique, Asie, Amérique centrale, Amérique du Sud, Asie occidentale, Asie méridionale, Asia du sud-est, Afrique australe

    This reports summarizes and synthesizes activities and achievements of the CGIAR Challenge Program on Water and Food (CPWF) through the end of 2007. The CPWF is an intiative of the CGIAR designed to take on the global challenge of water scarcity and food security.

  5. Library Resource
    Articles et Livres
    décembre, 2006
    États-Unis d'Amérique, Népal, Zambie, Mozambique, Guatemala, Guinée, Éthiopie, Kenya, Laos, Kirghizistan, Somalie, Italie, Botswana, Cambodge, Inde, Soudan, Mongolie, Afrique

    This paper represents part of an area of work which analyses the linkages between rights to land and water. An initial scoping paper explored the interface between land and water rights (LSP Working Paper 10: Hodgson, S. (2004). “Land and water – the rights interface”). It is complemented by two regional analyses: this Working Paper and LSP Working Paper 25: IIED. (2006). “Land and water rights in the Sahel: Tenure challenges of improving access to water for agriculture”.

  6. Library Resource
    Réglementations
    septembre, 2006
    Chine

    These Regulations, consisting of 17 articles, are enacted in accordance with the Land Administration Law of the People's Republic of China, aiming to strengthen the management of land resources in the Yili River Basin, rationally develop and use land, protect and improve the ecological environment, and achieve sustainable development.The land development of the Yili River Basin refers to the activities of scientific, rational and effective exploitation and business operation of the undeveloped land in the Yili River Baisin.

  7. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2023
    Chine

    Traditional energy consumption raises greenhouse gas emissions, which is a major concern in China. Agricultural energy consumption accounts for one third of China’s greenhouse gas emissions. Thus, current patterns of energy consumption on farms are both unsustainable and inadequate since rural communities in emerging nations have limited access to energy sources. This study explores the factors affecting the adoption of renewable energy on farms and examines the effect of such adoption on technical efficiency.

  8. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2023
    Chine

    Traditional energy consumption raises greenhouse gas emissions, which is a major concern in China. Agricultural energy consumption accounts for one third of China’s greenhouse gas emissions. Thus, current patterns of energy consumption on farms are both unsustainable and inadequate since rural communities in emerging nations have limited access to energy sources. This study explores the factors affecting the adoption of renewable energy on farms and examines the effect of such adoption on technical efficiency.

  9. Library Resource
    Articles et Livres
    décembre, 2014
    Chine

    Based on remote sensing monitoring, observations and experiments in wind tunnel and field, aeolian processes and landscape change of the Sonid grassland of Inner Mongolia Plateau in northern China were explored in this paper. Aeolian process was very strong and seriously affected by human disturbances on the Sonid grassland of Inner Mongolia Plateau. Sand transport rate of grassland increased quickly with the increase of desertification severities, especially at the very severe desertification stage of sand sheet emergence.

  10. Library Resource
    Articles et Livres
    décembre, 2015
    Chine

    Governance plays a key role in rangeland management. In China, all rangeland, including pastoral land and agro-pastoral land, is owned by the State. Since 1980, use rights have been granted to households by the Chinese government extending the household contract responsibility system (HCRS). But in the agro-pastoral areas of northwestern (NW) China, the rangeland degradation is more severe than that in pastoral areas. The HCRS is difficult to implement because the limited and fragmented grazing land cannot be contracted to individual households.

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