[1]CHEN Yajuan,ZHOU Zhongfa,YAN Lihui.Response of Plant Community Diversity to Rocky Desertification Succession in Karst Valley Area[J].Research of Soil and Water Conservation,2016,23(05):205-209.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 05
Page number:
205-209
Column:
Public date:
2016-10-28
- Title:
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Response of Plant Community Diversity to Rocky Desertification Succession in Karst Valley Area
- Author(s):
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CHEN Yajuan1,2, ZHOU Zhongfa1,2, YAN Lihui1,2
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1. School of Karst Science, Guizhou Normal University, Guiyang 550001, China;
2. State Key Laboratory Incubation Base for Karst Mountain Ecology Environment of Guizhou Province, Guiyang 550001, China
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- Keywords:
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Karst valley area; rocky desertification; plant community; important value; diversity
- CLC:
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Q145
- DOI:
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- Abstract:
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In view of plant community in Karst valley area, the diversity of plant communities at different stages of the rocky desertification was studied by field survey and laboratory analysis. Using the method of space instead of time, the response of plant community diversity in the process of rocky desertification evolution is discussed in order to provide a reference for the restoration and reconstruction of ecosystem in typical Karst area. The results show that: (1) the plant community in the demonstration area is dominated by artificial vegetation; (2) at potential and slight rocky desertification stage, the important values of Pennisetum sinese Roxb and Arthraxon hispidus (Thunb.) Makino are high, at moderate and high stages, the IV of Zanthoxylum bungeanum Maxim., Amomum villosum Lour. and Opuntia stricta (Haw.) Haw. var. dillenii (Ker-Gawl.) Benson occupy the superiority; (3) along with the evolution of Karst rocky desertification, Simpson index decreased gradually, Shannon-Winner index increased first and then decreased, Pielou index presented a gradually rising trend, Margalef index ascended slightly prior to the intensive decline.