Evaluating Modis Vegetation Indices Using Ground Based Measurements in a Mountains Semi-natural Meadows of Northeast Portugal
نویسندگان
چکیده
Ancestral semi-natural meadows, locally called “Lameiros”, are an essential element of the mountain landscapes in Northern Portugal. These meadows are frequently located in areas of high water availability, loamy soils and over 700-800m hight. In association with these meadows can be found traditional irrigation systems, in which the water is applied all year around, to assure the crop water requirements but also to promote a thermal regulation effect [1].
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