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Displaying 1117 - 1128 of 2002

Co-investments in land management: lessons from the Galessa watershed in Ethiopia

Journal Articles & Books
Diciembre, 2013
Etiopía

The use of co-investment activities to motivate farmers to carry out sustainable land management is increasingly recognized. Several co-investment efforts have been implemented to combat land degradation and increase agricultural production in the Ethiopian highlands. Nevertheless, these co-investment activities have not been documented. Moreover, the impacts of these activities have not been evaluated. This study presents a co-investment initiative for sustainable land management in the Galessa watershed in Ethiopia.

Soil crusting impact on soil organic carbon losses by water erosion

Journal Articles & Books
Diciembre, 2013
Burkina Faso

The Sahelian region, characterized by erratic, heavy rainfalls and low soil organic carbon (SOC) stocks, is highly vulnerable to land degradation. While water erosion is recognized as being a main mechanism of SOC losses, little research has yet been done to investigate the role which soil surface crusting might have on SOC losses. The main objective of this study was to evaluate the impact of soil surface crusting on SOC losses. This study was conducted in Tougou Catchment (37km²), northwest of Burkina Faso, which receives a cumulative mean annual rainfall of 500mmy⁻¹.

role of seed provenance in the early development of Arbutus unedo seedlings under contrasting watering conditions

Journal Articles & Books
Diciembre, 2013

In the last decades, several studies have reported the increase of land degradation and desertification in the Mediterranean Basin. Depending on degradation severity, ecological restoration might be needed in order to promote ecosystem recovery. The ecology of the selected species and intra specific variability should be considered in order to improve restoration options, especially facing climate change. The present study tested the hypothesis that seedlings from drier provenances would be better adapted to low water content conditions.

Using an ecological economics approach to support the restoration of collapsing gullies in southern China

Journal Articles & Books
Diciembre, 2013
China

Land degradation and poverty are problems that must be tackled together for environmental conservation to succeed. However, it is rarely possible to move a population from degraded land to another area where the people can be more easily sustained. To find a new strategy that achieves both conservation and economic gains without the need to relocate a population, we examined/investigated a sustainable combination of ecological and economic development suitable for the restoration of areas of China with collapsing gullies, where the frequent steep slopes make restoration difficult.

Fine-particle emission potential from overflowing areas of the Tarim River

Journal Articles & Books
Diciembre, 2013
China

Fine particulates less than 2.5 μm (PM2.5) or 10 μm (PM10) are often emitted from river bank or other alluvial lands to the atmosphere during dry and windy seasons worldwide, which contribute to land degradation and poor air quality. Investigation of PM2.5 and PM10 emission potential could contribute to the development of mitigation strategy and better land management practices. In the lowprecipitation zone (

Changes in woody species composition following establishing exclosures on grazing lands in the lowlands of northern Ethiopia

Journal Articles & Books
Diciembre, 2013

Restoring vegetation in low rainfall areas is difficult and urges the need to design an effective and low-cost method of vegetation restoration. This study was undertaken in the lowlands of northern Ethiopia to: (1) investigate how exclosure age affects restoration of degraded native plant species richness, diversity and aboveground standing biomass, and (2) identify soil characteristics, which affect effectiveness of exclosures to restore degraded native vegetation.

Constraints on agricultural production in the northern uplands of Vietnam

Journal Articles & Books
Diciembre, 2013
Viet Nam
Asia sudoriental

The Northern Uplands of Vietnam form one of the largest ecological regions in the country, characterized by complex biophysical conditions and a high diversity in ethnic minorities, cultures, and farming systems. The Doi moi ("renovation?) program has, since the early 1980s, resulted in significant changes in agriculture production and related economic trends. However, poverty, low agricultural productivity, and land degradation are still major problems.

Improving rural livelihoods and minimizing land degradation through the community watershed approach for sustainable development of dryland areas

Reports & Research
Diciembre, 2013
India
Asia meridional
Asia

Through networking of partners by way of a consortium approach, the project has demonstrated that 50% of chemical fertilizers can be substituted with the locally-produced vermicompost that the farmers themselves make. In Madhya Pradesh 800 trials were conducted, and a 1000 in Rajasthan, during the post-rainy season, which demonstrated the productivity benefits that can be achieved by following the science-led farmer participatory approach.

Runoff and sediment monitoring in an agricultural watershed in the Ethiopian Highlands

Reports & Research
Diciembre, 2013
Etiopía
África
África oriental

Land degradation due to soil erosion is a major issue in the Ethiopian Highlands. Deforestation leads to ongoing gully erosion during the rainy season (June to September) and thus the hydrology of a watershed changes as dense gully networks cause direct drainage of rain water. To better understand watershed scale gully processes in the Ethiopian Highlands, three gauging stations were installed in the 56 km2 large Gumara-Maksegnit catchment in the northern Amhara region, to monitor discharge and sediment load in the gullies during rainy season.

Soil conservation measures in the Ethiopian Highlands: The effectiveness of stone bunds on soil erosion processes

Conference Papers & Reports
Diciembre, 2013
Etiopía
África
África oriental

Extensive land degradation in the Ethiopian Highlands jeopardizes rural livelihood. Intensified by increasing population pressure, farmers are forced to expand their arable land by deforestation and thus worsening the soil erosion problem. Through the application of various soil conservation measures, farmers and authorities try to prevent against further land degradation.