نتایج جستجو برای: farmland
تعداد نتایج: 3841 فیلتر نتایج به سال:
Post World War II suburban growth in Canada and the US has created concern over the long-term availability of farmland to meet food production needs. Subsequent efforts to provide legal protection to agricultural land continue to shape the development of the fringes of nearby urban areas. This paper employs the concept of “agriburbia,” suburban landscapes in which agriculture maintains a signif...
The damaged environment is a global problem. It is more serious in China because of the cultivable land destroyed. So the agroecosystem reconstruction is the primary object in China. A case of reclamation planning in LiaoNing Province was studied in this paper. A large number of abandoned land sites have become an urgent task for the local government since farmland is so short in this area. The...
The ability of agricultural lands to sequester carbon from the atmosphere and help mitigate global warming has the potential to add value to farmland through the development of carbon-credit trading. Crucial to the creation of a market-based carbon credit trading system is the monitoring and verification of agricultural practices that promote carbon storage. Using remotely sensed images for thi...
The energy and nutrient content of most agricultural crops are as good as or superior to natural foods for wild geese and they tend to be available in agricultural landscapes in far greater abundance. Artificial grasslands (fertilised native swards and intensively managed reseeds) offer far superior quality forage and higher intake rates than seminatural or natural grasslands. The availability ...
Farmland ecosystems have evolved through the development of agriculture, becoming almost uniquely characteristic plant and animal communities (Potts 1991). However, rapid changes in farming methods in the second half of the 20 century resulted in the partial collapse of this ecosystem (Potts 1997). Throughout most of Europe, farmland birds have declined as a result of simplification of farming ...
For 473 km2 of farmland surrounding Kakamega Forest in western Kenya, QuickBird satellite imagery has been analyzed by an object-based image analysis approach. Preprocessing involved atmospheric/orographic correction as well as mosaicing and was followed by ground truthing and visual interpretation. Segmentation was optimized using a newly introduced ‘area fitness rate’ as a discrepancy method ...
ijur_1142 151..164 In an increasingly global India, an agricultural community in Pune, Maharashtra was faced with losing farmland to urbanization and devised an unusual solution. Pooling their land together, these farmers leveraged their social and political networks to take advantage of the changing economic climate in Pune and built a mixed-use township on their 400 acres of farmland. They fo...
One of the objectives of precision agriculture is rapid location of fields information to reduce the investment and improve the environment. Based on near infrared (NIR) hyperspectral images, this paper outlines an approach using hyperspectral imaging technology, combining spectral analysis methods and supervised classification methods for the extraction and analysis of farmland objects. This p...
Relevance Concerns about the environmental impact of farming has increasingly been the focus of discussions in the EU. Croplands, a primary land use in Europe, have a significant impact on the environment (soil, water bodies, global climate, local biodiversity and human health). The use of fertilisers and pesticides associated with conventional farming may lead to pollution and/or climate chang...
Accurate estimates of predator densities are important for the conservation management of large predator populations. Predator densities outside of protected areas are often understudied and management decisions are based on assumptions of predator numbers. This study conducted three spoor surveys on commercial farmland in Botswana to estimate large predator densities. Brown hyaenas (Hyaena bru...
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