本文選題：杉木　切入點(diǎn)：藜蒴錐　出處：《西南林業(yè)大學(xué)學(xué)報(bào)(自然科學(xué))》2017年04期

【摘要】：2007年12月在廣東省佛山市高明區(qū)云勇林場(chǎng)的杉木和藜蒴錐林下以不施肥為對(duì)照,采用完全隨機(jī)區(qū)組試驗(yàn)設(shè)計(jì),進(jìn)行施N肥、施P肥及施N+P肥等處理,分析華南地區(qū)杉木和藜蒴錐人工林的混合凋落葉分解對(duì)外源性N和P的響應(yīng)。結(jié)果表明:施N對(duì)杉木和藜蒴錐林下混合凋落葉的分解有抑制作用,而施P的凋落葉分解速率最快,施N+P也促進(jìn)了凋落葉分解�？傮w來(lái)看,藜蒴錐林下混合凋落葉的分解速率大于杉木林下的混合凋落葉。24個(gè)月后,杉木林下施N和N+P的混合凋落葉N含量顯著大于其初始含量,而藜蒴錐林下各處理的混合凋落葉N含量均小于其初始含量;在杉木和藜蒴錐林下,施P和N+P的混合凋落葉P含量均顯著大于其初始含量;混合凋落葉K含量在整個(gè)分解過(guò)程中波動(dòng)較大。
[Abstract]:In December, 2007, under the forest of Chinese fir and Chenopodium fissa in Yunyong Forest Farm of Gaoming District, Foshan City, Guangdong Province, no fertilizer was applied, and the treatment of N fertilizer, P fertilizer and N P fertilizer was carried out by using a complete randomized block experiment design. The responses of mixed litter decomposition to exogenous N and P in Chinese fir and Chenopodium fissa plantation in South China were analyzed. The results showed that the application of N could inhibit the decomposition of mixed litter under Cunninghamia lanceolata and Chenopodium fissa plantation. In general, the decomposition rate of mixed leaves in Chenopodium fissa forest was higher than that under Chinese fir forest. After 24 months, the decomposition rate of mixed leaves in Chenopodium fissa forest was higher than that in Cunninghamia lanceolata forest. The N content of mixed litter leaves of Chinese fir and N P was significantly higher than its initial content, while the N content of mixed littered leaves of Chenopodium fissa forest was lower than that of Cunninghamia lanceolata and Chenopodium fissa, and the N content of mixed littered leaves was lower than that of Cunninghamia lanceolata. P content of mixed litter leaves with P and N P was significantly higher than its initial content, and K content of mixed litter leaves fluctuated greatly during the whole decomposition process.
【作者單位】： 華南農(nóng)業(yè)大學(xué)林學(xué)與風(fēng)景園林學(xué)院;
【基金】：中央財(cái)政林業(yè)科技推廣示范項(xiàng)目(2015-GDTK-07)資助
【分類(lèi)號(hào)】：S714

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