نتایج جستجو برای: agro ecosystems
تعداد نتایج: 55957 فیلتر نتایج به سال:
Increasing global atmospheric CO2 concentration has led to concerns regarding its potential effects on the terrestrial environment. Attempts to balance the atmospheric carbon (C) budget have met with a large shortfall in C accounting (μ1.4 3 1015 g C y–1) and this has led to the hypothesis that C is being stored in the soil of terrestrial ecosystems. This study examined the effects of CO2 enric...
Understanding how climate change will affect agro-ecosystems and the ecosystem services they provide is a significant global challenge. Investigating this topic requires holistic approach that can capture complexity of assess impacts on physical, biological, socio-economic aspects system. The Drivers-Pressures-State-Impact-Response (DPSIR) framework problem structuring method commonly used in e...
Poplar-cotton agro-ecosystems are the main agricultural planting modes of plain cotton fields in China. Here, we performed a systematic survey of the diversity and population of arthropod communities in four different combination of poplar-cotton eco-systems, including I) non-transgenic poplar and non-transgenic cotton fields; II) non-transgenic poplar and transgenic cotton fields [Bacillus thu...
Declining plant diversity and abundance have been widely reported in agro-ecosystems of North America and Europe. Intensive use of herbicides within cropfields and the associated drift in adjacent habitats are partly responsible for this change. The objectives of this work were to quantify the phenological stages of non-target plants in in-situ field situations during herbicide spray and to com...
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