Position: Home > Articles > Study on Natural Restoration of Degraded Karst Vegetation in Southwest Guangxi
Research of Soil and Water Conservation
2009,16
(3)
65-69
桂西南退化喀斯特植被自然恢复研究
作 者：
刘京涛;温远光;周峰
单 位：
山东省黄河三角洲生态环境重点实验室;南京晓庄学院生命科学系;广西大学林学院
关键词：
相似系统理论;演替系列;恢复度;恢复速度;退化喀斯特植被
摘 要：
采用"空间代替时间"方法结合"相似系统原理"建立退化群落自然恢复演替系列,对桂西南退化喀斯特植被自然恢复过程中群落高度、生物量等结构功能指标的恢复度和恢复速度进行了分析。结果表明:桂西南退化喀斯特植被群落自然恢复在群落演替初期阶段速度很慢,每提高0.1恢复度需要约10.7 a时间;到演替中期出现恢复加速期,每提高0.1恢复度需要2.6~3.5 a;到演替后期恢复速度又下降,每提高0.1恢复度需要3.5~5.3 a。退化群落从草本群落阶段达到群落结构、功能的基本恢复需要30~40 a,但要达到群落结构、功能的完全恢复则需要近100 a。
译 名：
Study on Natural Restoration of Degraded Karst Vegetation in Southwest Guangxi
作 者：
LIU Jing-tao1,WEN Yuan-guang2,ZHOU Feng3 (1.Shandong Provincial Key Laboratory of Eco-environmental Science for Yellow River Delta,Binzhou,Shandong 256603,China;2.Forestry College of Guangxi University;Nanning 530004,China;3.Department of Life Science,Nanjing Xiaozhuang College;Nanjing 211171,China)
关键词：
similarity system theory;succession series;restoration degree;restoration speed;degraded karst vegetation
摘 要：
The 'time-specific method' and 'similar system theory' were employed to construct succession series of the degraded karst communities in Southwest Guangxi.Evaluation indexes such as restoration degree(RD),restoration speed(RS) and their calculating methods were proposed.Variation of RD and RS of community structure and function indexes including community height and biomass were analyzed.The results showed that there were the lowest RD and slower RS at the initial stage of community succession;moderate RD and fastest RS at the mid-stage;the highest RD and slowest RS at the late stage.It would take about 10.7 years at the initial stage,2.6~3.5 years at the middle stage,and 3.5~5.3 years at the succession end for every 0.1 RD.The normal community structure and function could be presented after 30～40 years natural restoration,but it would take about 100 years to the complete restoration of community structure and function.
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