本文選題：土壤酶 + 經(jīng)營(yíng)方式�。� 參考：《應(yīng)用生態(tài)學(xué)報(bào)》2017年02期

【摘要】：研究粗放經(jīng)營(yíng)和集約經(jīng)營(yíng)條件下毛竹林蔗糖酶、纖維素酶、硝酸還原酶、脲酶和過(guò)氧化氫酶5種土壤酶活性對(duì)4種氮沉降水平(0、30、60和90 kg·hm-2·a-1)的響應(yīng).結(jié)果表明:與粗放經(jīng)營(yíng)相比,集約經(jīng)營(yíng)分別顯著提高土壤蔗糖酶、纖維素酶和脲酶活性55.5%、112.9%和28.6%,顯著抑制硝酸還原酶活性31.5%,對(duì)過(guò)氧化氫酶活性的影響不顯著.氮沉降顯著抑制粗放和集約經(jīng)營(yíng)方式下毛竹林蔗糖酶活性20.0%~49.4%和36.2%~45.1%、纖維素酶活性20.5%~46.3%和18.3%~49.0%、硝酸還原酶活性67.9%~85.2%和15.2%~34.2%,以及集約經(jīng)營(yíng)毛竹林脲酶活性23.1%~47.6%,顯著增加了粗放經(jīng)營(yíng)毛竹林土壤脲酶活性8.1%~50.6%,對(duì)過(guò)氧化氫酶活性的影響不顯著.氮沉降與經(jīng)營(yíng)方式的復(fù)合作用除對(duì)過(guò)氧化氫酶活性的影響不顯著外,對(duì)其他4種土壤酶活性的影響均達(dá)到顯著水平.
[Abstract]:The responses of five soil enzymes, sucrase, cellulase, nitrate reductase, urease and catalase, to four nitrogen deposition levels of 60 and 90 kg hm-2 ~ (-1) of Phyllostachys pubescens were studied under extensive and intensive management. The results showed that intensive management significantly increased soil sucrase, cellulase and urease activities, respectively, 112.9% and 28.6%, significantly inhibited nitrate reductase activity 31.5%, and had no significant effect on catalase activity. Nitrogen deposition significantly inhibited sucrase activity of bamboo forest in extensive and intensive management by 20.0% and 36.2% and 45.1%, Cellulase activity was 46.3% and 18.39.0, nitrate reductase activity was 67.2% and 15.234.22.2%, and urease activity in intensive management bamboo forest was 23.1D and 47.6T, which significantly increased extensive management. The soil urease activity of Phyllostachys pubescens stands at 8.1% and 50.6%, but has no significant effect on catalase activity. The compound effect of nitrogen deposition and management mode had no significant effect on the activity of catalase except for the other four kinds of soil enzyme activity.
【作者單位】： 浙江農(nóng)林大學(xué)亞熱帶森林培育國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家林業(yè)局“948”項(xiàng)目(2013-4-55) 國(guó)家自然科學(xué)基金項(xiàng)目(31270517,31470529)資助~~
【分類號(hào)】：S714.3

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