species composition

基本解釋

These shifts in species composition may be benign, or they may result in a cascade of negative consequences throughout the marine food web.
這些物種組成的轉(zhuǎn)變可能是良性的，也有可能導(dǎo)致整個(gè)海洋食物網(wǎng)的一系列消極后果。
The characteristics of the species composition in the forest boundary were analyzed by species diversity index, species richness index, species evenness index and species dominance index.
用物種多樣性指數(shù)、豐富度指數(shù)、均勻度指數(shù)和優(yōu)勢(shì)度指數(shù)，對(duì)邊際帶物種組成的特征進(jìn)行分析；
Therefore , it should be emphasized to enhance the self - fertilization capability of forest by adjusting the species composition and increasing the proportion of native broad - leaved species.
因此，應(yīng)重視通過調(diào)整物種組成，增加闊葉樹種比例以增強(qiáng)森林的自肥能力。

種類組成
D. The species composition between above ground vegetation and soil seed banks are nearly the same at the early stages of succession, but it is very different in the later stages.
D、演替早期階段的地上植物種類組成與土壤種子庫(kù)中種類組成基本一致,演替后期階段相關(guān)甚少。
物種組成
植物組成
Tourism disturbance caused a significant change in species composition and structure of plant communities in kernel Spot of Jiuzhaigou.
1.旅游活動(dòng)引起九寨溝核心景區(qū)植物組成和群落結(jié)構(gòu)特征改變顯著。
物種構(gòu)成
種類成分

物種組成
Result I Traditional upbringing did not change significantly the immature forest land vegetation species composition,the main vegetation being Miscanthus and Dicranopteris.
結(jié)果傳統(tǒng)的全刈撫育后,未成林造林地植被物種組成未發(fā)生明顯變化,主要植被仍為五節(jié)芒和芒萁。
種類組成
Inter-stream variations in fungal diversity and species composition were observed, with 59-74 fungal taxa recorded per site.
不同溪流間存在真菌多樣性,每個(gè)采集地的真菌的種類組成也不同,數(shù)量變化范圍為59-74。
樹種組成

物種組成
The soil seed bank and vegetation are similar in terms of species composition, density, the indices of the diversity and similarities.
土壤種子庫(kù)和地上植被在物種組成、密度、生物多樣性以及相似性系數(shù)方面均具有較高的相似性。
地球科學(xué)
種組成