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Showing items 1 through 9 of 141.
  1. Library Resource
    Journal Articles & Books
    December, 2011
    China

    Steppe, an important belt to protect North China from dust storms, is vulnerable and has been degraded in recent decades because of climatic change and heavy grazing. In order to improve steppe management, this study presents a framework for the monitoring of grazing intensity in Xilingol steppe of middle Inner Mongolia, northern China, by integrating the CENTURY ecosystem model-based simulation and remotely sensed MODIS data-based inversion.

  2. Library Resource
    Reports & Research
    Policy Papers & Briefs
    December, 2011
    China, Eastern Asia, Oceania

    There is an urgent need to provide practical guidelines for Chinese decision makers and officials to better understand the key issues and constraints related to rural wastewater management and to identify feasible solutions and tools to improve the performance and sustainability of these projects. To address these needs, the World Bank has developed this guide for wastewater management in rural villages in China. The Guide is intended to be a useful resource for Chinese policy makers and practitioners.

  3. Library Resource
    January, 2012
    Bangladesh, China, India, Indonesia, Vietnam

    In the wake of the food crises of the early 1970s and the resulting World Food Conference of 1974, a group of innovators realized that food security depends not only on crop production, but also on the policies that affect food systems from farm to table. In 1975, the International Food Policy Research Institute (IFPRI) was founded—nine years after the Asian Development Bank (ADB). For the past 38 years, IFPRI has worked to provide solid research and evidence-based policy options to partners in recipient and donor countries and at multilateral agencies.

  4. Library Resource
    Journal Articles & Books
    December, 2011
    China

    A standard methodology is needed to recognize potentially suitable areas for sustainable bioenergy crop production. This facilitates better identification of promising crops and cropping systems, logistical and economic studies, and work needed to meet regulatory criteria. A possible approach is built upon three layers of internationally available spatial data: (1) degrading and abandoned areas, (2) potentially suitable land cover classes, (3) exclusion zones such as nature reserves and areas of high biodiversity.

  5. Library Resource
    Journal Articles & Books
    January, 2012
    China

    North China is the most important food basket of China, where the majority of wheat and corn are produced. Most crops grown in North China are irrigated, thus water security is food security. Since the 1980s, drying has been frequently observed, as shown by a reduction in precipitation, cutoff in riverflow, and shrinkage of lakes. This increase in drying cannot be explained by climate change alone. We propose that intensive land-use in this area in recent decades has had a significant impact.

  6. Library Resource
    Journal Articles & Books
    December, 2011
    China

    Vegetation type is one of many factors that affect watershed hydrology and is an especially important influence on surface hydrological processes. Canopy and ground cover vegetation provide a natural cushion against the impact energy of rainfall in headwater portions of a stream basin, increasing water filtration into the soil and reducing surface runoff, but effects of different vegetation types are not fully understood. We sought to evaluate the capacity of different vegetation communities to regulate surface runoff in an alpine landscape.

  7. Library Resource
    Journal Articles & Books
    December, 2011
    China

    Agricultural soil quality is drastically affected in modern societies by human activities. This paper evaluates the anthropogenic influence on agricultural soil quality variation in Zhangjiagang County, China from 1980 to 2004 based on indicator selection and standard scoring function (SSF). The results indicated that after 24 years of anthropogenic influence, soil organic matter (SOM), total nitrogen (TN), cation exchange capacity (CEC) and available phosphorus (av-P) increased significantly and total phosphorus (TP) and available potassium (av-K) decreased slightly.

  8. Library Resource
    Journal Articles & Books
    December, 2011
    China

    A dried soil layer (DSL) formed in the soil profile is a typical indication of soil drought caused by climate change and/or poor land management. The responses of a soil to drought conditions in water-limited systems and the impacts of plant characteristics on these processes are seldom known due to the lack of comparative data on soil water content (SWC) in the soil profile. The occurrence of DSLs can interfere in the water cycle in soil–plant–atmosphere systems by preventing water interchanges between upper soil layers and groundwater.

  9. Library Resource
    Reports & Research
    October, 2011
    China, United States of America, Caribbean, Europe, Latin America and the Caribbean

    El presente documento ha sido elaborado encumplimiento de la Actividad I.1.1 del Programa deTrabajo de la Secretaría Permanente para el año2011, denominada "Seguimiento permanente delproceso de integración regional".

  10. Library Resource
    Journal Articles & Books
    December, 2011
    China

    Biological invasion represents one of the most serious threats to biodiversity, and invasion ecology research has become one of the central issues of contemporary environmental science. However, the relative role of soil development as correlated with succession in influencing variation in invasion resistance has seldom been examined. We hypothesized that the invasion potential of exotic plants depends on soil conditions. In this study, we explored variation among soils of three forest types in their resistance to invasion by Mikania micrantha H.B.K.

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