Essays about: "erosion control"

Showing result 36 - 40 of 47 essays containing the words erosion control.

  1. 36. The effects of soil erosion on nutrient content in smallholding tea lands in Matara district, Sri Lanka

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Elna Rasmusson; Carolina Emanuelsson; [2012]
    Keywords : physical geography; geography; smallholders; tea; soil erosion; GIS; nutrient content; Sri Lanka; te; jorderosion; geografi; naturgeografi; näringsinnehåll; småbönder; Earth and Environmental Sciences;

    Abstract : Soil erosion is a major problem which is expanding as the natural vegetation is replaced by cultivations. This results in land degradation which decreases the quality and fertility of the soil. Sri Lanka is world leading on the market of tea, with smallholders contributing to an important amount of the production. READ MORE

  3. 37. Vegetation establishment after restoration measures in calcareous sandy grasslands

    University essay from Lunds universitet/Examensarbeten i biologi

    Author : Sara Alexandersson; [2012]
    Keywords : Biology and Life Sciences;

    Abstract : ABSTRACT Calcareous sandy grasslands are among the most threatened habitats in Europe, primarily because of abandonment, acidification, eutrophication and fragmentation. Much of the biodiversity found in calcareous sandy grasslands depend on the availability of calcareous sand in the topsoil layer. READ MORE

  4. 38. Mapping wetland areas on forested landsacpes using Radarasat-2 and Landsat-5 TM data

    University essay from SLU/Dept. of Forest Resource Management

    Author : Jennifer Martin; [2012]
    Keywords : Radarsat; Landsat; wetlands; classification; land cover; multi-soruce data; remote sensing; Random Forests; Maximum Likelihood Classifier;

    Abstract : Wetlands are an important ecosystem for many vital functions such as groundwater recharge, flood control, water quality improvement, and to mitigate erosion. Monitoring and mapping wetlands on a large scale is becoming increasingly more important, and satellite remote sensing provides a practical approach. READ MORE

  5. 39. A shift from extensive to intensive livestock production system in Uruguay : Driver of local changes in water-related ecosystem services?

    University essay from Stockholm Resilience Centre

    Author : Ylva Ran; [2012]
    Keywords : consumptive water use; water-related ecosystem services; livestock production; extensive and intensive agriculture; regime shift; conceptual matrix;

    Abstract : Livestock production is one of the largest and fastest growing agricultural subsectors in the world, contributing almost 40 % of agricultural GDP. The present global trend of livestock intensification affects water demand, resulting in local alterations of hydrological features. READ MORE

  6. 40. The Exercise of Power through Creation of Knowledge: A Narrative of Environmental Change During Colonization in Kiambu, Kenya

    University essay from Institutionen för geovetenskaper

    Author : Kristin Follis; [2012]
    Keywords : environmental narratives; colonization; soil erosion; Kenya; knowledge power; sustainable development;

    Abstract : Ongoing environmental change is one of the greatest barriers facing programs and policies aiming to achieve sustainable development today. While the concept of sustainable development is relatively new, the threat of environmental change is not. READ MORE