Differential responses of soil quality in revegetation types to precipitation gradients on the Loess Plateau

Shujuan Guo,Yadong Xu, Chao He,Shaojun Wu,Chengjie Ren,Xinhui Han,Yongzhong Feng,Guangxin Ren,Gaihe Yang

Agricultural and Forest Meteorology（2019）

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摘要

•Soil quality index (SQI) was formed based on total nitrogen, clay, urease, and pH.•Vegetation restoration resulted in improved soil quality.•SQI significantly increased with increasing mean annual precipitation (MAP).•Improvements in soil quality decreased with increasing MAP.•The change of SQI was greater in forestland than those in shrubland and grassland.

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关键词

Vegetation restoration,Soil quality index,Precipitation gradient,Revegetation type

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