نتایج جستجو برای: value of pasture
تعداد نتایج: 21190681 فیلتر نتایج به سال:
The impacts of land utilization change on the ecosystem service values in Daqing during 1995 to 2015 were analyzed based on unit area ecosystem service value of Chinese territorial ecosystem from Mr. Xie Gaodi and ecosystem service value calculation formula from Costanza. Results showed that the ecosystem service value of Daqing decreased from US $4343.1559m in 1995 to US $3824.327m in 2015, wi...
In mid-season prime lamb production it is essential to optimise lamb performance from grazed pasture to minimise costs and so improve margins from sheep production. This is achieved by continuously supplying high feed value herbage for the duration of the grazing season. Feed value is a combination of nutritive value (i.e. digestibility) and intake characteristics (which is a combination of her...
Backgrounds: The conditions in which an individual or society is under tension due to social, economic, and environmental changes are called vulnerability. Vulnerability of rangeland beneficiaries and subsequent poverty of beneficiaries has caused unsustainable operation of rangelands. On the other hand, the degree pf vulnerability of rangeland beneficiaries in areas with more rainfall restrict...
the objective of the study was to evaluate chemical composition, in vitro dry matter digestibility (ivdmd), and growth performance of weanling boer-goats supplemented with cowpea seed hulls (csh) and commercial concentrate / feed (cf) with natural pasture as basal diet. weanling boer-goats (n=36) were assigned to 3 treatments comprising of 4 animals each (2 bucklings and 2 females) replicated t...
collection and reuse of wastewater and sewage in agriculture, natural resources and green environment is one way to conserve water resources and environmental. the aim of this study were to investigate the effects of wastewater sirjan golgohar industrial on the characteristics of cultivated soils in several species of pasture trees. this study was performed at the sirjan city which is located i...
in fact this study is concerned with the relationship between the variation in thematice structure and the comprehension of spoken language. so the study focused on the following questions: 1. is there any relationship between thematic structure and the comprehension of spoken language? 2. which of the themes would have greated thematic force and be easier for the subjects to comprehend? accord...
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