نتایج جستجو برای: stipa hohenackeriana trin
تعداد نتایج: 810 فیلتر نتایج به سال:
The landscapes of Inner Mongolia are widely known for the vast Stipa krylovii steppes. However, overgrazing and other improper land uses have extensively degraded the Stipa krylovii steppe ecosystem in recent decades. Knowledge about the soil seed banks and the remaining vegetation in these damaged ecosystems is crucial for guiding the restoration efforts. Using a germination method, this study...
ارایهی روشی دقیق، سریع و کم هزینه برای تعیین تولید گیاهان مرتعی یکی از اهداف بوم شناسان به ویژه مرتعداران است که همیشه علاقهمند به دانستن میزان تغییرات این ویژگی گیاهی هستند. هدف اصلی این تحقیق، تعیین روابطی بین متغیرهای سطح تاجپوشش، حجم و ارتفاع با تولید گونههای atriplex canescens، acanthophyllum squarrosum، lactuca orientalis، astragalus meshedensis و stipa barbata در مراتع جنوب بیرجند ...
This study aimed at investigating the potential of vegetation indices and precipitation-related variables derived from remote sensing to assess rangeland production in arid environment Moroccan Oriental region identifying challenges linked that particular biome. Vegetation (VIs) Standardized Precipitation Index (SPI) computed various aggregation periods were first integrated into a Random Fores...
some chemical characteristics of root, shoot and litter of index species such as salsola rigida, artemisia sieberi and stipa barbata commonly used in rangeland development projects were evaluated and compared. chemical properties of soil under and between the above mentioned species were also studied. for this purpose, vegetation types of stipa barbata and artemisia sieberi - salsola rigida wer...
Measurements of CO(2) exchange at varying O(2) concentrations in seven grass species of the Laxa group of Panicum and activities of five photosynthetic enzymes were compared to values obtained for these characters in a cool season C(3) grass, tall fescue (Festuca arundinacea Schreb.) and a C(4) grass, P. maximum Jacq. Plants were divided into three groups on the basis of the inhibition of appar...
Objective speech intelligibility estimations undertaken in natural acoustics communications (NAS) scenarios require the utilization of a source that approximates acoustic characteristics human talker. Only limited number special sources conform to specifications relevant guidelines are available market; however, they can be deemed expensive by professional practitioners and other users. Non-spe...
Grass range research turned into finished in Shivpuri district of Madhya Pradesh to gather the information about grass sources used by tribal network their environment. The flora with unique reference utility performed from Nov. 2021 Sept. 2022. is located on anywhere and its miles belong Poaceae family. It plays essential role human addition animas existence as meals, remedy, fiber plenty diff...
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