發(fā)布時(shí)間：2018-03-05 16:50

  本文選題：庫(kù)爾木圖礦區(qū)　切入點(diǎn)：溫帶典型草原　出處：《草業(yè)學(xué)報(bào)》2017年01期 　論文類型：期刊論文

【摘要】：為修復(fù)庫(kù)爾木圖礦區(qū)受損草原植被群落,對(duì)礦區(qū)受損草原實(shí)施覆土0,10,14和18cm恢復(fù)措施,實(shí)地調(diào)查分析群落蓋度、高度、地上生物量和物種多樣性,以研究不同覆土厚度對(duì)礦區(qū)受損草原群落物種多樣性和生物量的影響。結(jié)果表明,1)覆土厚度在14和18cm時(shí),礦區(qū)草地植物種類和數(shù)量頻度最多,物種組成最為豐富,且隨著覆土厚度的增加,草地植物群落的蓋度、高度和地上生物量呈逐漸增加趨勢(shì),但覆土14和18cm草地的植物高度、蓋度和地上生物量差異不顯著。2)在4種覆土厚度樣地中,覆土14cm草地的物種豐富度指數(shù)和多樣性指數(shù)均最高,均勻度指數(shù)最低,具體表現(xiàn)為:群落均勻度指數(shù)(Jsw和Ea)排列順序?yàn)楦餐?cm覆土18cm覆土10cm覆土14cm,群落豐富度指數(shù)(R和Ma)為覆土14cm覆土10cm覆土18cm覆土0cm,群落多樣性指數(shù)(D和H′)為覆土14cm覆土18cm覆土10cm覆土0cm。3)不同覆土厚度樣地群落生產(chǎn)力與Shannon-Wiener和Simpson多樣性指數(shù)之間呈弱正相關(guān)關(guān)系。因此,綜合考慮該地區(qū)恢復(fù)受損草原的經(jīng)濟(jì)投入和所產(chǎn)生的生態(tài)效益,進(jìn)行草原植被生態(tài)恢復(fù)的適宜覆土厚度為14cm。
[Abstract]:In order to restore the vegetation community of damaged steppe in Kuermu mining area, the restoration measures of soil cover of 0 10 ~ 10 ~ (14) cm and 18 cm were carried out on the damaged grassland in the mining area. The coverage, height, aboveground biomass and species diversity of the community were investigated and analyzed in the field. The effects of different soil cover thickness on species diversity and biomass of damaged steppe community in mining area were studied. The results showed that when the thickness of soil cover was 14 cm and 18 cm, the plant species and quantity of grassland were the most frequent and the species composition was the most abundant in the mining area. With the increase of soil cover thickness, the plant community coverage, height and aboveground biomass increased gradually, but there was no significant difference in plant height, coverage and aboveground biomass between 14 and 18 cm grassland. The species richness index and diversity index were the highest and the evenness index was the lowest in 14cm covered grassland. The community evenness index (JSW and EA) was arranged in the order of 0 cm, 18 cm, 10 cm and 10 cm, respectively, and the community richness index (R and Ma) was 14 cm, 10 cm and 18 cm, respectively, and the community diversity indices were 14 cm and 14 cm, respectively. There was a weakly positive correlation between community productivity and Shannon-Wiener and Simpson diversity indices in different soil cover samples with different soil thickness (18 cm and 10 cm soil cover 0 cm 路3), therefore, there was a weak positive correlation between community productivity and Shannon-Wiener and Simpson diversity indices. Considering the economic input and ecological benefit of restoring damaged grassland in this area, the suitable cover soil thickness of grassland vegetation ecological restoration is 14 cm.
【作者單位】： 中國(guó)科學(xué)院新疆生態(tài)與地理研究所;中國(guó)科學(xué)院大學(xué);
【基金】：自治區(qū)科技支撐計(jì)劃項(xiàng)目(201533110) 烏魯木齊科技局科學(xué)技術(shù)計(jì)劃項(xiàng)目(Y553141001)資助
【分類號(hào)】：S812

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 車力華,趙庚義,孟淑娥;蔬菜苗床電加溫線上覆土厚度的研究[J];中國(guó)蔬菜;1987年01期

2 夏三英;蔬菜異常苗的成因及對(duì)策[J];農(nóng)村經(jīng)濟(jì)與科技;2001年09期

3 鄒禮平;鄧萬(wàn)莉;高和平;;影響?zhàn)戏N子“戴帽”出苗的因素分析[J];種子世界;2001年04期

4 劉殿芳;甘草人工種植覆土試驗(yàn)[J];中藥通報(bào);1987年11期

5 王婷婷;胡振琪;邵芳;陳亞凱;喬志勇;劉東文;;玉米苗期根系對(duì)黃河泥沙充填復(fù)墾不同覆土厚度的響應(yīng)[J];河北農(nóng)業(yè)大學(xué)學(xué)報(bào);2014年03期

6 林偉;李t，

本文編號(hào)：1571098