作者: Z.P. Yang , Q. Zhang , Y.L. Wang , J.J. Zhang , M.C. Chen
DOI: 10.1016/J.JARIDENV.2011.01.007
关键词:
摘要: Abstract Shrub-induced spatial and temporal heterogeneity of soil properties is common in arid semiarid ecosystems, it facilitates the development plant species diversity. We selected 5-, 10-, 20-, 30-, 40-year-old Caragana microphylla shrubs Shanxi Loess Plateau to evaluate under outside shrub canopy. In addition, presence adventitious was investigated assess herbaceous Soil samples were collected from two depths (0–5 cm 5–10 cm). The establishment promoted variation, improved texture, enhanced organic matter (SOM), total nitrogen (TN), cation exchange capacity (CEC), decreased pH, bulk density (BD), water content (SWC). results further confirmed that SOM, TN, CEC significantly higher at center than canopies (P