本文選題：中小型土壤動(dòng)物　切入點(diǎn)：多樣性　出處：《干旱區(qū)資源與環(huán)境》2017年02期 　論文類型：期刊論文

【摘要】：筆者于2009年,對(duì)松嫩平原耕作草甸區(qū)中小型土壤動(dòng)物進(jìn)行了調(diào)查。結(jié)果表明:中小型土壤動(dòng)物個(gè)體數(shù)量和類群數(shù)量具有極顯著的相關(guān)性(r=0.894,P㩳0.05)。中小型土壤動(dòng)物的個(gè)體數(shù)量和類群數(shù)量水平方向變化趨勢(shì)基本是從呼蘭向嫩江遞減,即從低緯度向高緯度遞減。Sorenson相似性系數(shù)表明各樣地之間的相似程度都比較高,幾乎都在極相似以上。中小型土壤動(dòng)物個(gè)體數(shù)量、類群數(shù)量與有機(jī)質(zhì)呈極顯著正相關(guān)(r_(0.01)=0.936,r_(0.01)=0.912),與地溫呈顯著正相關(guān)(r_(0.05)=0.910,r_(0.05)=0.943)。CCA排序分析表明,彈尾目與地溫值和全磷相關(guān)性顯著,真螨目與pH值相關(guān)性顯著,寄螨目與速鉀相關(guān)性顯著。DG指數(shù)變化趨勢(shì)是從呼蘭到嫩江遞減。螨類和彈尾類比值大于1(A/C=1.58),表明該區(qū)域土壤生態(tài)系統(tǒng)不健康,土壤動(dòng)物群落不穩(wěn)定。筆者認(rèn)為,與多樣性指數(shù)相比,DG指數(shù)更適合測(cè)定種類繁多、組成復(fù)雜的土壤動(dòng)物群落。
[Abstract]:In 2009, the authors investigated the small and medium-sized soil animals in the cultivation meadow area of Songnen Plain. The results showed that the individual number of small and medium-sized soil animals was significantly correlated with the number of small and medium-sized soil animals. The variation trend of individual number and group number of small and medium-sized soil fauna is basically decreasing from Hulan to Nenjiang, that is, from low latitude to high latitude. Sorenson similarity coefficient indicates that the similarity degree between each land is relatively high. Almost all of them are very similar. There is a significant positive correlation between the number of small and medium soil fauna and the number of groups and organic matter. There is a significant positive correlation between the number of small and medium soil fauna and the organic matter. There is a significant positive correlation between the number of small and medium soil fauna and the number of organic matter. There is a significant positive correlation between the number of small and medium soil fauna and the number of organic matter. There is a significant positive correlation between the number of small and medium soil fauna, the number of groups and the number of organic matter. The correlation between acaridae and pH value was significant. The DG index was decreased from Hulan to Nenjiang. The analogies of mites and projectile tail were larger than 1 ~ 1 / A / C ~ (-1) ~ (58), which indicated that the soil ecosystem of this area was not healthy. The authors believe that the DG index is more suitable for the determination of a wide variety of soil fauna communities than the diversity index.
【作者單位】： 佳木斯大學(xué)理學(xué)院;佳木斯大學(xué)公共衛(wèi)生學(xué)院;
【基金】：國(guó)家自然科學(xué)基金(編號(hào):41301034) 黑龍江省教育廳科學(xué)技術(shù)研究項(xiàng)目(編號(hào):12541782)資助
【分類號(hào)】：S812.2

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