نتایج جستجو برای: productive agricultural lands

تعداد نتایج: 141141  

2013
Hans Harmen Smit Erik Meijaard Carina van der Laan Stephan Mantel Arif Budiman Pita Verweij

Land degradation is a global concern. In tropical areas it primarily concerns the conversion of forest into non-forest lands and the associated losses of environmental services. Defining such degradation is not straightforward hampering effective reduction in degradation and use of already degraded lands for more productive purposes. To facilitate the processes of avoided degradation and land r...

2014
H. K. Gibbs J. M. Salmon

Degraded lands have often been suggested as a solution to issues of land scarcity and as an ideal way to meet mounting global demands for agricultural goods, but their locations and conditions are not well known. Four approaches have been used to assess degraded lands at the global scale: expert opinion, satellite observation, biophysical models, and taking inventory of abandoned agricultural l...

2016
J. Tatarko S.J. van Donk J.C. Ascough D.G. Walker

Wind erosion not only affects agricultural productivity but also soil, air, and water quality. Dust and specifically particulate matter ≤10 μm (PM-10) has adverse effects on respiratory health and also reduces visibility along roadways, resulting in auto accidents. The Wind Erosion Prediction System (WEPS) was developed by the USDA-Agricultural Research Service to simulate wind erosion and prov...

Journal: :Proceedings. Biological sciences 2014
América P Durán James P Duffy Kevin J Gaston

Agroecosystems have traditionally been considered incompatible with biological conservation goals, and often been excluded from spatial conservation prioritization strategies. The consequences for the representativeness of identified priority areas have been little explored. Here, we evaluate these for biodiversity and carbon storage representation when agricultural land areas are excluded from...

2013
Theresa M. Nogeire Frank W. Davis Jennifer M. Duggan Kevin R. Crooks Erin E. Boydston

Wide-ranging species cannot persist in reserves alone. Consequently, there is growing interest in the conservation value of agricultural lands that separate or buffer natural areas. The value of agricultural lands for wildlife habitat and connectivity varies as a function of the crop type and landscape context, and quantifying these differences will improve our ability to manage these lands mor...

Journal: :Entropy 2017
Rajchandar Padmanaban Avit K. Bhowmik Pedro Cabral Alexander Zamyatin Oraib Almegdadi Shuangao Wang

Urban sprawl (US), propelled by rapid population growth leads to the shrinkage of productive agricultural lands and pristine forests in the suburban areas and, in turn, adversely affects the provision of ecosystem services. The quantification of US is thus crucial for effective urban planning and environmental management. Like many megacities in fast growing developing countries, Chennai, the c...

2009
Martin Bwalya

The rising world population is increasing the pressure on agriculture to produce more food (Fig. 1 and 2). This is more so for the African continent, where it is not just about food supply, but also a critical factor in economic development, poverty alleviation and improving living standards especially in rural areas. On the other side agricultural production is one of the factors contributing ...

Journal: :Conservation science and practice 2023

Promoting wildlife habitat on working agricultural land is a growing conservation priority, and agri-environment schemes are using payments for environmental services (PES) to reach these privately owned lands. PES can be ecologically effective, but also expensive, putting pressure cost-effective, maximizing the value of their limited resources. This study assesses cost-effectiveness four in Ca...

2016
Piotr Sewerniak

Based on materials gained in March 2015 from the Forest Data Bank the survey of some attributes (forest address including Regional Directorate of State Forest (RDSF), area in hectares, soil unit, forest site type, dominant species in a forest stand and age of the dominant species in a stand) of post-agricultural lands occurring in Polish State Forests was conducted in the paper. Distribution of...

2014
Qiang Tang Chansheng He Xiubin He Yuhai Bao Ronghua Zhong Anbang Wen

The Upper Yangtze River Basin comprises a densely-populated agricultural region with mountainous and hilly landforms. Intensive cultivation has been extended onto steep hillslopes, which constitute the principal source area for sediment production. Soil conservation on sloping arable lands is thus of utmost priority for persisting sustainable agricultural production and maintaining sound ecosys...

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