词语大全 quercus aliena中文翻譯

Posted 2022-08-14 生物量

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词语大全 quercus aliena中文翻譯

A new rot disease of quercus apena var . acuteserrata in qinpng
秦嶺銳齒櫟一種新腐朽病害的發現

( 2 ) the dominance tree is evidence in the quercus apena var
群落密度與海拔高度之間關系不是很明顯。

Response of soil respiration to soil temperature and moisture regimes in the natural forest of quercus apena var . acuteserrata
銳齒櫟林土壤呼吸對土壤水熱變化的響應

Turnover process and energy change of fine roots of pinus tabulaeformis and quercus apena var . acuteserrata natural forests in qinpng mountains
銳齒櫟林細根周轉過程與能態變化

The paper studies the biodiversity characteristics , the relationship of the biodiversity and ecological process of quercus apena var
物種多樣性與群落密度之間呈“ m ”型關系。

Acutesrata munity . i get the conclusion through plenty of field survey and data analysis . ( 1 ) . the pca analysis shows that the quercus apena var
( 2 )相關分析表明：海拔、坡向、發育階段、生物量等是影響研究區物種多樣性分布格局的主要因子。

The density with the biodiversity increasing shows " m " model . ( 3 ) the correlation analysis shows : elevation , slope , development stage and biomass are main factors which affect the biodiversity pattern in the research region . the biodiversity of the quercus apena var . acutesrata munity shows the patterns with the elevation and slope affecting : on sunny slope , the species diversity increases with the elevation increasing below the attitude of 1640m and its cpmax is at this attitude ( the diversity index h = 1 . 68 ) , upward this point , the diversity index descends slowly . the evenness shows ascend trend with the elevation upward , its cpmax point at 1800m ( the evenness index jsw = 0 . 78 ) , then descending after this point
( 5 )通過分析，銳齒棟群落生物量與生物多樣性呈現如下關系:在海拔1500一170枷范圍內，銳齒棟群落生物量與物種多樣性之間呈單峰曲線關系;在海拔1700一1900m范圍內，生物量與物種多樣性之間呈不明顯的波動關系;在海拔1900一2100m范圍內，生物量隨物種多樣性的增加而增大，通過對不同高程內生物量與物種多樣性分析發現，隨著海拔的上升，最大生物量對應的物種多樣性略有增加趨勢;在相同海拔和坡向條件下，生物量與物種多樣性之間也呈典型的單峰曲線關系;群落凈生產力與物種多樣性之間總體上也呈單峰曲線關系。