منابع مشابه
Meteorology and Agroforestry Meteorology and Agroforestry
The physical environment affects and interacts with agroforestry systems through tree and crop growth, animal performance, management operations and interactions between the tree/shrub and non-tree components (abbreviated to tree/crop interactions). Interactions take place mainly through the media of microclimate, soil moisture and soil. They may have beneficial or adverse effects, for tree and...
متن کاملAgricultural and Forest Meteorology
The temperature of the Earth is rising, and is highly likely to continue to do so for the foreseeable future. The study of the effects of sustained heating on the ecosystems of theworld is necessary so thatwemight predict and respond to coming changes on both large and small spatial scales. To this end, ecosystem warming studies have been performed formore than 20 years using a variety ofmethod...
متن کاملAgricultural and Forest Meteorology
Crop gross primary productivity (GPP) is an important characteristic for evaluating crop nitrogen content and yield, as well as the carbon exchange. Based on the close relationship observed between GPP and total chlorophyll content in crops, we applied a model that relies on a product of chlorophyll-related vegetation index and incoming photosynthetically active radiation for remote estimation ...
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ژورنال
عنوان ژورنال: The Lancet
سال: 1853
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(02)53947-7