Changes in Species Composition, Diversity and Soil Water Content of Pinus sylvestris Artificial Sand-fixation Forest along An Afforestation Successional Gradient in Horqin

doi:10.7522/j.issn.1000-694X.2016.00151

JOURNAL OF DESERT RESEARCH ›› 2018, Vol. 38 ›› Issue (1): 126-132.DOI: 10.7522/j.issn.1000-694X.2016.00151

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Changes in Species Composition, Diversity and Soil Water Content of Pinus sylvestris Artificial Sand-fixation Forest along An Afforestation Successional Gradient in Horqin

Luo Weicheng^1,2, Zhao Wenzhi¹, Sun Chengpeng^1,2, Yan Jialiang^1,2

1. Linze Inland River Basin Research Station/Key Laboratory of Inland River Ecohydrology, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000;
2. University of China Academy of Sciences, Beijing 100049, China

Received:2016-06-30 Revised:2016-11-18 Online:2018-01-20 Published:2018-01-20

Abstract

Abstract: Afforestation is a key technique for control of desertification in arid and semi-arid regions. Therefore, study the characteristics of species composition, diversity and soil water content of artificial sand-fixation forest during its successive process is important for the management of artificial vegetation. In this paper, we studied characteristics of species composition, diversity and soil water content of Pinus sylvestris artificial sand-fixation forest along an afforestation successional gradient from 5-45 years in Horchin. Our results show that the community was dominated by species in the Poaceae and Compositae during the successive process, and the number of species in the Compositae was significant increased with the increase of plantation age. The number of total species and herbs were decreased with the increase of plantation age followed a linear functions. However, the relationship between the number of shrubs and plantation age can well described with parabola functions. The biomass and coverage of herbs were first increased and then decreased with the increase of plantation age, and reached their maximum when the plantation age was 25 years. Soil water content was significant decreased with the increase of plantation age. And the average soil water content was decreased from 3.5% to 1.4% after 45 years. The shapely decline of soil water moisture is the mainly challenge of P. sylvestris in the later successive process.

Key words: Pinus sylvestris, species diversity, species composition, soil water content

CLC Number:

Luo Weicheng, Zhao Wenzhi, Sun Chengpeng, Yan Jialiang. Changes in Species Composition, Diversity and Soil Water Content of Pinus sylvestris Artificial Sand-fixation Forest along An Afforestation Successional Gradient in Horqin[J]. JOURNAL OF DESERT RESEARCH, 2018, 38(1): 126-132.

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Changes in Species Composition, Diversity and Soil Water Content of Pinus sylvestris Artificial Sand-fixation Forest along An Afforestation Successional Gradient in Horqin

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