1) community degradation gradient
群落退化梯度
2) community gradient
群落梯度
1.
The distribution trends of species richness indices,species diversity indices and species evenness indices along the community gradient were almost the same.
对大岗山常绿阔叶林群落物种多样性进行了研究,结果表明,物种丰富度指数、多样性指数和均匀度指数在群落梯度上的分布趋势基本一致,较好地反映了不同植物群落类型在物种组成方面的差异。
4) community degradation
群落退化
1.
The effects of forest community degradation on chemical composition of Karst shallow groundwater were studied in Guizhou Province by investigating vegetations and analyzing the samples of runoff and Karst groundwater.
对贵州中部喀斯特地区植被调查及径流和岩溶水样分析,探讨喀斯特森林群落退化过程中浅层岩溶地下水化学组成的变化。
5) Degeneration Gradients
退化梯度
1.
In the hige frigid meadow under different managements and degeneration gradients in the northwest of Sichuan, the characteristics of different soil nutrients’ distributions were analyzed in three different soil layers [0~20cm(L1)、20~40cm(L2)、40~60cm(L3)]for two series of high frigid meadow soils.
以不同管理措施和不同退化梯度的高寒草地土壤为研究对象。
6) degraded gradient
退化梯度
1.
In this study, by taken a lot of soil samples and field observation, the soil organic carbon, total-N, total-P, available-P, available-K, different active organic carbon, the content and constituent of humus, different combined humus of soil organic-mineral complex on the degraded gradient were determined and statistically analyzed.
通过对不同退化梯度下土壤有机质、全氮、全磷、速效磷、速效钾等养分的测定和分析，得出随着荒漠化程度越深，土壤全氮、全磷等养分含量明显减少。
补充资料：产业群落
是相关产业中相互依赖、相互合作、相互竞争的企业在地理上的集中。
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