نتایج جستجو برای: Abandoned field
تعداد نتایج: 795017 فیلتر نتایج به سال:
rangeland ploughing and cultivation using dry land farming crops may be amajor reason for the destruction of natural resources in the semiarid and sub-humid regionswhich may significantly change the composition and reduce the stability of the affectedcommunities. in present research, an abandoned ploughed site was compared with a nearbyreference site in the semiarid rangelands of baharkish, quc...
In recent years, a large part of the plowed rangelands has been abandoned due to the lack of economics, knowing such pastures and estimating plant production can play a significant role in their recovery. . It is usually difficult to investigate the changes in rangeand production due to interference in the access to the field and gathering field data. Considering the importance of determining p...
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...
Our present-day theory for fundamental processes in Nature— and by this I mean our descriptions of elementary particles and forces—is phenomenally successful. Experimental data confirms theoretical prediction; where accurate calculations and experiments are attainable, agreement is achieved to many— six or seven—significant figures. Table 1 shows two examples. Of course mostly such precision ca...
This research set out to examine the relationship between self-acceptance, decision-making styles, and hope for life among orphaned and abandoned students. This study had a descriptive, correlational design. The statistical population of the study comprised all orphaned and abandoned students in Kerman in 2016-17 from among whom 154 adolescents were selected through random multi-stage cluster s...
Gillnets are sometimes abandoned or lost at sea due to sea storms, tearing by a hard object, or the failure of fishermen to find the fishing area. In this study, the data related to the frequency of illegal abandoned fishing nets in Golestan province were collected through field patrols and questionnaire information from spring to winter 2016. 88,465 abandoned fishing nets were collected in the...
Chinese wolfberry Lycium barbarum L. (Solanales: Solanaceae), is an ancient herbal medicine and has been used for years in China. However, insect pests associated with this plant had not yet been well studied. The present study characterized the main pests associated with this plant. The method of risk assessment indices and the method of experience formulae were used to analyze the risk of pes...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید