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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).
Climate change mitigation through afforestation/reforestation: A global analysis of hydrologic impacts with four case studies
The implicit hydrologic dimensions of international efforts to mitigate climate change, specifically potential impacts of the Clean Development Mechanism-Afforestation/Reforestation (CDM-AR) provisions of the Kyoto Protocol (KP) on global, regional and local water cycles, are examined. The global impact of the redistribution of water use driven by agriculture and land use change, of which CDM-AR can be a contributing factor, is a major component of ongoing global change and climate change processes.