1) vegetation degradation
植被退化
1.
Effects of over-grazing on vegetation degradation of Kobresia pygmaea meadow in Nagqu, Tibet;
超载放牧对那曲地区高山嵩草草甸植被退化的影响
2.
Research on spatial pattern of human-induced vegetation degradation and restoration:a case study of Shaanxi Province
人类活动对植被退化/恢复影响的空间格局——以陕西省为例
3.
After study on vegetative structure and composition, propagule and soil of 25 vegetative ecosystems at three villages and one natural reserve in karst upland in Eastern Yunnan, we found that vegetation degradation was a gradual, anti-successional process in which species composition and propagule bank were determined by t.
植被退化是生态系统退化的最典型外在特征。
3) degraded vegetation
退化植被
1.
The degraded vegetation around Tiantong contains five types of communities,such as earlier degraded community of EBLF,deciduous broad-leaved forest community,coniferous and broad-leaved mixed forest community,conifer forest community and shrub community.
通过对退化植被各群落类型的区系分析,得出了天童地区常绿阔叶林退化群落的区系组成特征,具体如下:(1)天童及周边地区退化植被的植物区系包括72科138属204种,其物种多样性低于常绿阔叶林的成熟群落;(2)本植物区系地理成分与常绿阔叶林成熟群落一致,表现了明显的亚热带植物区系性质,是热带向温带的过渡;(3)人类的干扰导致了各退化群落中国特有成分的下降;(4)各退化群落类型与常绿阔叶林成熟群落保持了较高水平的科、属和种的相似性。
4) vegetation degraded areas
植被退化区
5) degradation and restoration of vegetation
植被退化与恢复
补充资料：草甸植被
| 草甸植被 meadow vegetation 以多年生中生草本植物为主体，发育于中度湿润条件下的植被类型。常称为草甸。草甸植被草层高而茂密，种类较丰富，主要有禾本科、莎草科、蔷薇科、菊科、豆科及蓼科等植物。一年生植物、小半灌木和灌木处于从属地位。根据分布地形部位可分为河漫滩草甸和大陆草甸，后者还可分为旱地草甸、低地草甸、山地草甸、亚高山草甸和高山草甸。按植物群落性质可分为典型草甸、高寒草甸、沼泽化草甸和盐生草甸等。草甸一般不构成独立的地带，属隐域性植被或跨带植被，但高山草甸和亚高山草甸可组成植被垂直带。中国的河漫滩草甸及大陆草甸大多已被开垦，在青藏高原东部及北方温带地区的山地和边远的低平原、海滨也有大片分布。草甸植被由于水分适中、土壤肥沃，历来是人类开垦的对象。
|
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条