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Displaying 1576 - 1580 of 1605Soil chemical and microbiological properties along a chronosequence of Caragana microphylla Lam. plantations in the Horqin sandy land of Northeast China
Caragana microphylla Lam., a leguminous shrub, is a dominant native plant species widely planted to stabilize the moving and semi-moving sand dunes in the semi-arid Horqin sandy land of Northeast China. The objective of this study was to determine how C. microphylla plantations affected the physical, chemical and microbiological properties of a sandy soil. Soil samples at the depths of 0-10, 10-20, 20-30, 30-40, and 40-50cm were collected from the C. microphylla plantations with an age sequence of 0, 5, 10, and 23 years.
Facilitating agroforestation of landscapes for sustainable benefits: Tradeoffs between carbon stocks and local development benefits in Indonesia according to the FALLOW model
Although Indonesia has no shortage of land area that lost its forest cover before 1990 and has become the global leader in land-use based greenhouse gas emissions, the widespread expectation that the afforestation/reforestation approach to Clean Development Mechanisms (A/R CDM) could lead to sustainable development benefits has not so far materialized.
Combining classification tree analyses with interviews to study why sub-alpine grasslands sometimes revert to forest: A case study from the Swiss Alps
Natural reforestation reflects a decline in traditional agricultural practices. In the last decades, natural forest re-growth has replaced much of the grasslands in the Swiss mountains. This is an area where traditional cultivation has preserved unique landscapes and habitats of high ecological value. We investigated the patterns and determinants of natural reforestation of sub-alpine grasslands at the sub-parcel level using raster cells as the units of the analysis, and at the municipality-level. The study encompassed four municipalities in the Swiss Alps.
Temporal variations and spatial patterns in saline and waterlogged peat fields
A cutover bog contaminated with seawater in New Brunswick, Canada remained barren 5 years after peat extraction operations ceased despite the proximity of natural seed sources. The aim of the study was to identify abiotic stresses impeding plant establishment and test transplanting of salt-tolerant wetland plants. The site consisted of long cambered rectangular fields that sloped down (2%) to the drainage ditches on both sides. Across this slope, zones were delineated based on moisture gradient as: Up-areas (drier), Mid-areas (moist) and Low-areas (wet).
Environmental impacts of introducing grain legumes into European crop rotations
Raw materials for animal feeding are highly deficient in Europe, which results in massive imports of soya beans from North and South America. These imports are connected with a number of environmental problems. Increasing the grain legume production in Europe could be a promising alternative. The impacts of introducing grain legumes into existing European crop rotations are investigated in this article. The environmental impacts are evaluated by using the SALCA (Swiss Agricultural Life Cycle Assessment) life cycle assessment method and the ecoinvent life cycle inventory database.