摘要
在野外样方调查的基础上,对汶川地震极重灾区彭州市谢家店子非规范滑坡体上的植物群落组成、物种多样性以及生物量进行详细调查和统计分析。结果表明:(1)植物群落的物种组成已比较丰富,已统计到高等植物20科35属53种。(2)物种的多样性指数较高,Shannon-wiener指数(H′)、Simpson指数(D)、Margalef丰富度指数(Ma)和Pielou均匀度指数(E)的均值分别达1.894、0.787、9.713和2.741。(3)群落的生物量已较大,植物的鲜重和干重均值分别达2.20kg/m2和0.97kg/m2。由于该滑坡区气候条件优越,植物群落的自然演替完全能够顺利进行,加之土壤条件较差以及地质灾害风险大,不宜人工恢复植被。研究结果不仅为该区生态环境的自然恢复提供依据,而且为震后形成的山地特殊滑坡体上植被的恢复模式提供参考。
Based on the plots and quadrats of the plant communities,the examination group carried on the close investigation and the statistical analysis on the plant community in the landside mass in Xiejiadian in Yingchanggou of the Longmen Mountain. The results showed that：（1）The species composition of plant communities have been more diverse,and has counted the higher plant 20 families 35 genera 53 species.（2）species diversity indices are high,the Shannon-wiener index （H＇）,Simpson index （D）,Margalef index （Ma） and Pielou index （E） mean value is 1.894,0.787,9.713 and 2.741 respectively.（3）The plant community has a big biomass already,and the mean value of plant＇s fresh weight and the dry weight is 2.20 kg and 0.97 kg each square meter respectively. Indicate that the climatic conditions of the landslide mass is superior,and the natural succession of plant community is fully capable of smooth,in addition that the vegetation restores should not be artificial with poor soil conditions and risks of geological disasters in the area.The results not only provide the basis to restore the natural ecological environment of this area but also provide the reference to the earthquake vegetation＇s restoration pattern in the mountainous region special landside mass of the earthquake.
出处
《山地学报》
CSCD
北大核心
2010年第3期373-378,共6页
Mountain Research
基金
国家自然科学基金项目(NO.40871222)
国家重点基础研究发展计划(973项目) (2008CB425803)~~
关键词
非规范滑坡体
植被
演替
银厂沟
谢家店
non-normative landslide mass
vegetation
succession
Yingchanggou
Xiejiadian
