نتایج جستجو برای: has productive lands
تعداد نتایج: 2650702 فیلتر نتایج به سال:
Coastal lands and nearshore marine areas are productive and rapidly changing places. However, these areas face many environmental challenges related to climate change and human-induced impacts. Space-borne remote sensing systems may be restricted in monitoring these areas because of their spatial and temporal resolutions. In situ measurements are also constrained from accessing the area and obt...
Tongyu County in Northeast China is highly prone to land degradation due to its fragile physical settings characterized by a flat topography, a semi-arid climate, and a shallow groundwater table. This study aims to determine the causes of land degradation through detecting the long-term trend of land cover changes. Degraded lands were mapped from satellite images recorded in 1992 and 2002. Thes...
Does Local Development Exist? Sustainability of Artisanal Agri-Industry of Jatropha Seeds in Yucatan
This study seeks to analyze the benefits, as well as the likely risks of cultivating Jatropha curcas in small production units of rain fed lands in Yucatán. In order to analyze the possible development of local artisanal agri-industry in the context of policies related to biofuels in Mexico, interviews with key informants were made to identify the agricultural potential of Jatropha c. in monocu...
Extended abstract 1- Introduction The forests of the Zagros vegetation area cover about six million hectares (40%) of Iran's forest area, which is dominated by oak species. These forests are exposed to a number of threats, including land use change, deforestation, over grazing, deliberate and unintentional fires, pest and disease attacks, and climate change. Although accurate and timely...
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...
1. Definitions 1.1. Types of Aridity 1.2. Levels of Aridity 2. Paleoperspective 3. People and Land Use in Arid Lands 3.1. Foragers/Hunter–gatherers 3.2. Agriculturists 3.3. Pastoralists 4. Geomorphology of Arid and Semiarid Lands 5. Biological Diversity in Arid Lands 5.1. Arid and Semiarid Lands Plants and their Uses 5.2. The Future of the Conservation of Wild Plants in Arid Regions 6. Climatic...
Tanzania 2002 Summary The continued vicious cycle of population-poverty-and-environmental degradation has been acknowledged. The purpose of this paper, therefore, is to draw attention to the serious consequences of land degradation, a national and trans-national socioeconomic complex problem, and the need for rehabilitating degraded lands in the sub-humid lands of Sub-Saharan Africa (SSA). The ...
We consider whether current notions about superstring theory below the Planck scale are compatible with cosmology. We find that the anticipated form for the dilaton interaction creates a serious roadblock for inflation and makes it unlikely that the universe ever reaches a state with zero cosmological constant and time-independent gravitational constant. Superstring theories have been extensive...
Abstract Palm oil is a plantation commodity that has high economic value and the potential to be developed in Jambi Province. One of districts Province whose farmers cultivate palm Muaro Jambi. This research was conducted analyse independent farming income after replanting Sungai Bahar Sub-District, District. study shows there are still many area who only as their main source (43.3%). Farmers o...
Although it is well documented that children undergo a productive vocabulary spurt late in the second year, it is unclear whether this development is accompanied by equally significant advances in receptive word processing. In the present study, we tested an electrophysiological procedure for assessing receptive word learning in young children, and the impact of productive vocabulary size for p...
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