1) degraded shrub and grass communities
退化灌丛草坡
1.
Based on data from field survey, a cluster analysis of degraded shrub and grass communities in the suburbs of Nanchong city has been carried out with special reference to 4 kinds of distance coefficients, ie.
利用4种计算距离系数的方法,通过聚类分析,将南充市近郊退化灌丛草坡群落划分为7个群丛。
2) degraded shrub-grass grasslands
退化灌草丛草地
1.
In Malong County,Yunnan Province,the degraded shrub-grass grasslands were improved by reseeding,enclosure and reconstruction in the year of 2004.
以土壤有机质、全氮、全磷、全钾、碱解氮、速效磷、速效钾、pH值、容重、孔隙度和含水量等为指标,对云南省马龙县不同植被恢复措施下的退化灌草丛草地的土壤理化性状进行主成分分析和聚类评价。
3) degraded shrub
退化灌丛
1.
The photosynthetic characteristics were determined of 4 dominant species(Rubus setchuenensis,Corylus yunnanensis,Camphlotropis macrocarpa and Quercus liaotungensis) in the degraded shrubs in Maoxian of Sichuan,which is located at the upper reaches of the Minjiang River,and their biological properties were studied based on community investigation.
采用CI-310光合测定系统对岷江上游四川茂县退化灌丛中川莓(Rubus setchuenensis)、滇榛(Corylus yun-nanensis)、杭子梢(Campylotropis macrocarpa)和辽东栎(Quercus liaotungensis)4个优势种的光合特性进行了测定,并结合群落调查与物种生物学特性进行了分析。
4) Pearshrub (Caragana)-Grassland
退化柠条灌丛草地
1.
Study on the Vegetation and Soil Characteristics of Pearshrub (Caragana)-Grassland in Restoration Process in Arid Sandland of Eastern Ningxia;
宁夏东部干旱风沙区退化柠条灌丛草地恢复过程中植被与土壤动态特征研究
5) degraded hilly grassland
退化草坡
1.
Dynamics and modeling of species abundance distribution during natural restoration of degraded hilly grassland in south China
华南退化草坡自然恢复中物种多度分布的动态与模拟
2.
By the fieldwork and indoor experiment,the changes of the community structure and function of degraded hilly grassland,such as plant diversity,biomass,and soil nutrition,during the vegetation restoration from herb dominance to shrub dominance in south subtropical Heshan,Guangdong,were examined.
南亚热带退化草坡自然恢复这一过程较为缓慢,应采取适当的人为措施,如通过人工造林恢复乔木层植被,进而增加林下植物多样性,以加速退化草坡的植被恢复。
6) thicketization of steppe
草原灌丛化
1.
From the increase of soil patchiness scale in the thicketization of steppe,it is suggested that the transition from steppe to thicketization-steppe dominated by Caragana microphylla patches could be irreversible once this threshold is passed.
运用状态与过渡模式的观点,从植被组成的变化探讨锡林河流域灌丛化草原形成的阈值;从土壤斑块性尺度增强进一步说明草原灌丛化的阈值一旦跨越,这种转变将是难以逆转的,最终会形成以小叶锦鸡儿灌丛斑块占优势的灌丛化草原。
补充资料:落叶松、桦灌丛、苔草沼泽
郎惠卿提供
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