Résultats de la recherche
Showing items 1 through 9 of 218.
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Publication évaluée par des pairs
China has a unique land use system in which there are two types of land ownership, namely, state-owned urban land and farmer collective-owned rural land. Despite strict restrictions on the use rights of farmer collective-owned land, rural land is, in fact, developed along two pathways: it is formally acquired by the state and transferred into state ownership, or it is informally developed while remaining in collective ownership.
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Library Resource
Publication évaluée par des pairs
This article examines the conflicts arising from the Diamer Bhasha Dam project in northern Pakistan. Conflicts arising from the impacts of the dam on the local population and territory and steps to resolve some of them are identified. These impacts relate to unfair land acquisition, improper displacement, inadequate compen- sation, resettlement and future livelihoods. The completion of the project depends on the arrangement of project finance, resolution of conflicts among different actors and the consent of all stakeholders.
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Library Resource
This Strategic Plan to be implemented during a period from 2017 to 2021 is all about a contribution of WWF Mongolia towards successful and thriving co-existence of human beings and environment in Mongolia, particularly in two areas, namely Altai Sayan and Amur Heilong Ecoregions those have been named as important hubs and potentials for conservation.
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Library Resource
Publication évaluée par des pairs
China’s influence in neighboring Central Asian states is growing at a fast pace. Since the launch of the One Belt, One Road (OBOR) initiative to accelerate China’s engagement in Central Asia and beyond, nearly all Chinese activity in this region has been gathered under OBOR. OBOR now seems to cover a plethora of spatially and temporally expanding state and privately driven projects. In this paper, I discuss large- and small-scale Chinese farm enterprises in Tajikistan, in which discussions around China’s “global land investments” and OBOR intersect.
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Library Resource
Soil erosion along with soil particles and nutrients losses is detrimental to crop production. We carried out a 5-year (2010 to 2014) study to characterize the soil erosion and nitrogen and phosphorus losses caused by rainfall under different fertilizer application levels in order to provide a theoretical evidence for the agricultural production and coordinate land management to improve ecological environment. The experiment took place under rotation cropping, winter wheat-summer maize, on a 15° slope purple soil in Chongqing (China) within the Three Gorges Region (TGR).
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Library Resource
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.
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Library Resource
The flow–sediment relationship is important to understand the soil erosion and land degradation processes in severe eroded areas. This study researches on variations of streamflow, sediment load, and flow–sediment relationship on multi‐temporal scales (annual, flood season and, monthly scales) in a highly erodible catchment of Chinese Loess Plateau.
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Library Resource
The exact roles of landscape fragmentation on sandy desertification are still not fully understood, especially with the impact of different land use types in spatial dimension. Taking patch size and shape into consideration, this paper selected the Ratio of Patch Size and the Fractal Dimension Index to establish a model that reveals the association between the area of bare sand land and the fragmentation of different land use types adjacent to bare sand land.
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Library Resource
BACKGROUND: Soil organic carbon (SOC) is fundamental for mitigating climate change as well as improving soil fertility. Databases of SOC obtained from soil surveys in 1981 and 2011 were used to assess SOC change (0–20 cm) in croplands of Heilongjiang Province in northeast China. Three counties (Lindian, Hailun and Baoqing) were selected as typical croplands representing major soil types and land use types in the region. RESULTS: The changes in SOC density (SOCD) between 1981 and 2001 were −6.6, −14.7 and 5.7 Mg C ha⁻¹ in Lindian, Hailun and Baoqing Counties respectively.
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Library Resource
Heavy metal pollution in urban soil has become a serious environmental issue in China since the last three decades. Attention has been given to the investigation of soil contamination; however, there is little information available on the variation of heavy metal pollution in soils. To resolve this problem and provide references on similar regions, 18 topsoil (0∼20 cm) samples were collected from identical sites of districts that with different functions in Kaifeng City in 1994 and 2012. Total contents of As, Cd, Hg, and Pb were determined by standard methods.
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