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title: Rock outcrops redistribute water to nearby soil patches in karst landscapes
author: Wang, Dian-jie;  Shen, You-xin;  Huang, Jin;  Li, Yu-hui
Issued Date: 2016
Abstract: The emergence of rock outcrops is very common in terrestrial ecosystems. However, few studies have paid attention to their hydrological role in the redistribution of precipitation, especially in karst ecosystems, in which a large proportion of the surface is occupied by carbonate outcrops. We collected and measured water received by outcrops and its subsequent export to the soil in a rock desertification ecosystem, an anthropogenic forest ecosystem, and a secondary forest ecosystem in Shilin, China. The results indicated that outcrops received a large amount of water and delivered nearly half of it to nearby soil patches by means of runoff. No significant difference was found in the ratio of water received to that exported to the soil by outcrops among the three ecosystems annually. When the outcrop area reaches 70 % of the ground surface, the amount of water received by soil patches from rock runoff will equal that received by precipitation, which means that the soil is exposed to twice as much precipitation. This quantity of water can increase water input to nearby soil patches and create water content heterogeneity among areas with differing rock emergence.
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全文许可: Creative Commons 署名-非商业性使用-相同方式共享 3.0

Recommended Citation:
Wang, Dian-jie,Shen, You-xin,Huang, Jin,et al. Rock Outcrops Redistribute Water To Nearby Soil Patches In Karst Landscapes[J]. Environmental Science And Pollution Research,2016,23(9):81610-8616.

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