نتایج جستجو برای: land improvement
تعداد نتایج: 424261 فیلتر نتایج به سال:
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...
The urgency of the environmental debate has renewed the interest in the application of integrated models of urban land use and transportation. In the United States new legislation inspired by growing environmental awareness such as the Intermodal Surface Transportation Efficiency Act of 1991 requires that transportation planning must consider the interaction between transportation and land use ...
This paper describes the structure of the LAND USE SCANNER model, a GIS based model developed to generate spatial forecasts for various types of land use for a large number of grids. The model basically allocates land according to bid prices for various types of land use. The possibility of government intervention in land use is taken into account among others by adding aggregate constraints. T...
Colonization of land by plants was a major transition on Earth, but the developmental and genetic innovations required for this transition remain unknown. Physiological studies and the fossil record strongly suggest that the ability of the first land plants to form symbiotic associations with beneficial fungi was one of these critical innovations. In angiosperms, genes required for the percepti...
This paper analyzes the fiscal and land value impacts of public open-‐space conservation in a budget-‐constrained city. It derives the necessary and sufficient conditions for open-‐space conservation to increase the level of municipal services and the total land value within the ...
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