Grouping all the species across biomes (except croplands) by three basic functional groups: trees, shrubs, and herbaceous plants, the maximum rooting depth was 7.0±1.2 m for trees, 5.1±0.8 m for shrubs, and 2.6±0.1 m for herbaceous plants. These data show that deep root habits are quite common in woody and herbaceous species across most of An ornamental pear has very shallow root systems and can become a nuisance as the tree matures and the large roots push up through the surface. How deep are the roots of a pear tree? Review of the literature showed that the main portion of the root system of pear trees is located in different soils at the depth of 10-30 to 60 cm (Atkinson, 1980 Here we examine the difficulties inherent in clearly defining deep roots and deep rooting, which leads us to review current uncertainties regarding deep rooting and its determinants. In particular, we briefly present and discuss various pieces of evidence that challenge the widely accepted view that the exponential decrease model is of .

deep rooted tree review