نتایج جستجو برای: soil restoration
تعداد نتایج: 229414 فیلتر نتایج به سال:
Landscape context is an important factor in restoration ecology, but the use of landscape context for site prioritization has not been as fully developed. We used morphological image processing to identify candidate ecological restoration areas based on their proximity to existing natural vegetation. We identified 1,102,720 candidate ecological restoration areas across the continental United St...
In order to reduce soil erosion and desertification, the Sloping Land Conversion Program has been conducted in China for more than 15 years, and large areas of farmland have been converted to forest and grassland. However, this large-scale vegetation-restoration project has faced some key problems (e.g. soil drying) that have limited the successful development of the current ecological-recovery...
Agricultural practices have strong impacts on soil microbes including both the indices related to biomass and activity as well as those related to community composition. In a grassland restoration project in California, where native perennial bunchgrasses were introduced into non-native annual grassland after a period of intensive tillage, weeding, and herbicide use to reduce the annual seed ba...
Soil fertility is important factors for growth and productivity of vegetation. The relationship between vegetation and soil fertility deserves attention due to its scientific importance and practical applications. However, the effects of soil fertility on vegetation development and succession are poorly documented. Here we study soil fertility in Yanhe watershed at northern Shaanxi on five diff...
Echinochloa pyramidalis (Lam.) Hitchc. & Chase is an African grass with C4 photosynthesis, high biomass production, and high vegetative propagation that is tolerant to grazing and able to grow in flooded and dry conditions. Thus, it is highly invasive in tropical freshwater marshes where it is intentionally planted by ranchers to increase cattle production. This invasion is reducing plant biodi...
Restoration techniques tailored to grasslands are needed improve the effectiveness of restoration in tropical landscapes. In this study, we investigated joint effects plant–soil legacies and soil inocula native invaded Cerrado evaluate whether different microbial origins affect feedbacks likelihood restoration. Using two grass species, measured aboveground biomass, several plant traits over gro...
The UK hosts 15-19% of global upland ombrotrophic (rain fed) peatlands that are estimated to store 3.2 billion tonnes of carbon and represent a critical upland habitat with regard to biodiversity and ecosystem services provision. Net production is dependent on an imbalance between growth of peat-forming Sphagnum mosses and microbial decomposition by microorganisms that are limited by cold, acid...
Background and objectives: Mineral exploration is an important factor in rangeland ecosystem degradation in Iran. The first priority in mine site restoration is to use native plants as they can resist the stress caused by heavy metals and nutrients deficiency and also the harsh environmental situation. Vegetation restoration in polluted mining area depends on how plants can respond to phisycal ...
We evaluated the potential of prairie wetlands in North America as carbon sinks. Agricultural conversion has resulted in the average loss of 10.1 Mg ha(-1) of soil organic carbon on over 16 million ha of wetlands in this region. Wetland restoration has potential to sequester 378 Tg of organic carbon over a 10-year period. Wetlands can sequester over twice the organic carbon as no-till cropland ...
Contents 1. Introduction 1.1. Arid Ecosystems 1.2. Desertification 2. Degradation of natural resources 3. Frame conditions: The importance of scale 4. Defining compartments for feasible approaches 5. Assessment and monitoring of the problem 6. Approaches to combating degradation in arid systems 6.1. Practical steps within the biophysical system 6.1.1 Water resources 6.1.2. Conservation of soils...
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