JOURNAL OF NATURAL RESOURCES ›› 2016, Vol. 31 ›› Issue (7): 1164-1172.doi: 10.11849/zrzyxb.20150898

• Resource Evaluation • Previous Articles     Next Articles

Effects of Riparian Vegetation Patterns on the Distribution and Migration Characteristics of Surface Soil Nutrients

GUO Er-hui1, 2, YUN Fei1, FENG Zhi-pei1, CHANG Hai-rong1, YANG Xi-tian1   

  1. 1. Henan Agricultural University, Zhengzhou 450002, China;
    2. Research Center for Eco-Environmental Sciences, CAS, Beijing 100085, China
  • Received:2015-08-19 Revised:2016-01-27 Online:2016-07-20 Published:2016-07-20
  • Supported by:
    National Natural Science Foundation of China, No.41401206 and 31570613 ;The Plan of Innovative Talents of Science and Technology of Henan Province, No.154200510019

Abstract: The types and patterns of riparian vegetation have changed greatly due to human activities along the Wenyu River. Three riparian vegetation patterns from the upland to the river channel along Wenyu River were chosen as the focus of this study. These vegetation patterns are (I) Populus simonii forestland-Cropland, (II) Rhus typhina forestland-Grassland and (III) Cropland-Grassland, respectively. The distributions of soil nutrients along these vegetation patterns were observed and compared. Results show that the heterogeneity of riparian vegetation structure can significantly affect the distribution characteristics of soil nutrients and the risk of soil nutrients loss. From the upland toward the river channel, the contents of soil TN (total nitrogen), TP (total phosphorus), AN (available nitrogen), AP (available phosphorus), and the content of SOM (soil organic matter) exhibit the declining trend in riparian vegetation structure I, whereas the soil bulk density (BD) shows an increase trend. The contents of TN, AN, SOM in riparian vegetation structure II fluctuate, while the contents of TP and AP are relatively stable. Soil nutrients in riparian vegetation structure III show the increase trend from the upland toward the river channel, however, the soil BD decreases in the same direction. For the vegetation structure III, the grassland soil in the lower slope has more nutrients and OM but lower BD than the cropland soil in the upper slope. The riparian vegetation structure also can affect the average contents of soil nutrients in riparian transect. A scientific reference can be provided by this paper for optimization and restoration design of riparian vegetation.

Key words: ecological management, riparian zone, soil nutrients, vegetation patterns

CLC Number: 

  • S158