| Germinable soil seed banks and the restoration potential of abandoned cropland on the Chinese hilly-gullied loess plateau. | |
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MedLine Citation:
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PMID: 20694556 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Poor vegetation cover is generally considered to be a major factor causing soil erosion on the Loess Plateau in China. It has been argued that tree planting restoration is ineffective, and natural re-vegetation is an alternative ecological solution for restoring abandoned cropland and controlling soil erosion. The aims of this study were to investigate the characteristics of soil seed banks and to assess the natural restoration potential of abandoned cropland in the hilly-gullied Loess Plateau. The soil seed bank was identified by the germination method with the soil samples, which were collected at four sampling times (April, August, and October 2005 and August 2006) from 12 plots abandoned 3-30 years prior to sampling. The seed bank densities of all of the samples in the 0-10 cm soil layer varied from 1,067 ± 225 to 14,967 ± 1,606 seeds m(-2). Fifty-one species (24 annual and 27 perennial species) belonging to 18 families were identified, and 39% of these species belonged to the families Compositae and Gramineae. The pioneer species Artemisia scoparia dominated the seed bank, with an average seed density of 3,722 seeds m(-2), and accounted for 74.4% of the seeds in the bank. The local dominant species (such as Lespedeza davurica, Artemisia gmelinii, Bothriochloa ischaemun and Stipa bungeana) of the later succession stages also existed at densities varying from 17 to 1, 383 seeds m(-2). The combination of soil seed bank characteristics, reproductive traits of the species, the specific landscape conditions indicates that the potential to restoring the abandoned croplands in the hilly-gullied Loess Plateau via natural re-vegetation could be substantial. |
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Authors:
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Ning Wang; Ju-Ying Jiao; Yan-Feng Jia; Wen-Juan Bai; Zhen-Guo Zhang |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-08-07 |
Journal Detail:
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Title: Environmental management Volume: 46 ISSN: 1432-1009 ISO Abbreviation: Environ Manage Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-09-20 Completed Date: 2011-01-11 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7703893 Medline TA: Environ Manage Country: United States |
Other Details:
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Languages: eng Pagination: 367-77 Citation Subset: IM |
Affiliation:
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Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Northwest A&F University, Yangling, 712100, Shaanxi, China. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Agriculture* China Conservation of Natural Resources / methods* Plants / growth & development* Seeds* Soil* Time Factors |
| Chemical | |
Reg. No./Substance:
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0/Soil |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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