نتایج جستجو برای: so decrease biodiversity increase agricultural value added
تعداد نتایج: 2313345 فیلتر نتایج به سال:
While habitat fragmentation represents a major threat to global biodiversity, its impacts on provision of ecosystem services are largely unknown. We analysed biodiversity value and provision of multiple ecosystem services in 110 fragments of lowland heathland ecosystems in southern England, in which vegetation dynamics have been monitored for over 30 years. Decreasing fragment size was found to...
flow in natural river bends is a complex and turbulent phenomenon which affects the scour and sedimentations and causes an irregular bed topography on the bed. for the reason, the flow hydralics and the parameters which affect the flow to be studied and understand. in this study the effect of bed and wall roughness using the software fluent discussed in a sharp 90-degree flume bend with 40.3cm ...
تاریخ کشاورزی در حقیقت داستان تلاش بشر برای هستی و نجات از گرسنگی است. جامعه ایرات در 6 سال آینده با جمعیتی متجاوز از 40 میلیون نفر و رشد متوسط 12% در سال بقیمت ثابت و تولید ناخالص طی 100 میلیارد دلار در سال بازار تولید و مصرف قابل ملاحظه ای را ایجاد و حمایت خواهد کرد. با توجه به اینکه در سال 2531 تولید کل ناخالص کشاورزی ایران در حدود 3 میلیارد دلار بوده است میزان تلاش و کوششی که دولت و ملت ایر...
The global homogenization of the Earth’s biota is expected to increase due to the increase in movement of people and goods between regions, and many introduced species are having a negative economic impact. The increase of introduced species can be thought of as a major global change, because ecosystems throughout the world are now impacted by exotics [1, 2]. Grasslands, which cover roughly 25%...
The International Forum on Translation Technology will be held on the theme of cooperative work between humans and the computer. As an example of the cooperative work, the present situation and prospects for the machine translation value-added network (MT-VAN) service will be described below. In the MT-VAN, users, the machine translation systems and the translators are satisfactory linked by th...
Local and landscape-scale agricultural intensification is a major driver of global biodiversity loss. Controversially discussed solutions include wildlife-friendly farming or combining high-intensity farming with land-sparing for nature. Here, we integrate biodiversity and crop productivity data for smallholder cacao in Indonesia to exemplify for tropical agroforests that there is little relati...
a r t i c l e i n f o To address ongoing biodiversity losses, the use of incentive-based nature protection policies is increasingly recommended. In the present paper, we examine how action and result-oriented agricultural policy measures affect the species protection initiatives of real agricultural managers. To do so, we use a computer-based economic experiment involving a multi-period individ...
In the present study, the effect of exchange rate and shadow banking along with the added value of different production sectors on the overdue receivables of the banking network in the period 2008: 2-2018: 4 has been investigated using the Markov regime change pattern. The results show that the effect of research variables in different regimes of overdue receivables is different, so that if def...
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