نتایج جستجو برای: land survey
تعداد نتایج: 484824 فیلتر نتایج به سال:
China has undergone economic transition characterized by marketization, globalization and decentralization, which has resulted in profound change in land use and urban space. This paper integrates globalization, institutional change, and China's economic transition to better understand urban land expansion in China. We use land use survey data in Jiangsu province at the county level to shed the...
For the precaution against physical soil degradation in managed soils, accurate planning data about anthropogenic impacts and for policy making applicable indicators to describe the driving force and state are required. To assess the potential erosion risk, accurate information is available, but to assess the actual erosion risk it is necessary to regard current land-use and cultivation data fo...
The association between land use and land cover changes between 1979-2004 in a 2.26-million-hectare area south of the Gran Chaco region and Trypanosoma cruzi infection in rural communities was analysed. The extent of cultural land, open and closed forests and shrubland up to 3,000 m around rural communities in the north, northwest and west of the province of Córdoba was estimated using Landsat ...
Through interpreting Landsat TM images, this study analyzes the spatial distribution of rural settlements in China in 2000. It calculates rural residential land percentage for every 1-km(2) cell. The entire country is divided into 33 regions to investigate the spatio-temporal dynamic patterns of rural residential land during the 1990s. According to the remote sensing survey, the rural residenti...
Land-ownership patterns in rural areas are undergoing changes. To explore the critical question of how changing land ownership in a watershed potentially drives land use, we examined differences in individual landowners’ reasons for owning drylands. We conducted a mail survey of 767 landowners in three counties of central Texas, USA. Using exploratory factor analysis we reduced motivations into...
In the presented methodology, multitemporal Landsat images were used to develop enhanced information about complex assemblages of vegetation and patterns of seasonal land cover variability, thereby facilitating improved land use and land cover (LULC) classification of urbanized areas among sensitive environments along the Mississippi Gulf Coast. For Landsat-5 and Landsat-7 images acquired for l...
A refined land cover classification for the arid Phoenix (Arizona, USA) metropolitan area and some simple modifications to the surface energetics were introduced in the fifth-generation PSU/NCAR mesoscale meteorological model MM5. The single urban category in the existing 24-category United States Geological Survey (USGS) land cover classification used in MM5 was divided into three classes to a...
Cadastre is the essential land register and the basis for many services in the area of land administration and land management. Although European parcel based cadastral system is used in many countries, differences in business processes between countries exist. Through a long period of time these differences have been adapting to development of technology, legislation and other conditions withi...
شته ی خردلlipaphis erysimi (kalt.) از مهم ترین آفات کلزا در ایران و سایر مناطق گرمسیر جهان است. هفت رقم از سه گونه ی جنس brassica شامل کلزا brassica napus l. (cv. hyola401, licord, elite, okapi, rgs003)، شلغم روغنی (cv. park land) b. rapa l. و خردل هندیb. juncea l. (cv. land race) جهت بررسی مقاومت آنتی زنوز و آنتی بیوز نسبت به شته ی l. erysimi تحت شرایط گلخانه با دمای 2±25 درجه ی سانتی گراد، رط...
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