本文選題：土地整理 + 土壤��； 參考：《土壤通報(bào)》2016年01期

【摘要】：土地整理的碳排放研究對(duì)優(yōu)化土地利用格局、應(yīng)對(duì)氣候變化具有重要意義。以河北省邢臺(tái)市巨鹿縣、柏鄉(xiāng)縣土地整理項(xiàng)目為例,通過間接采樣和隨機(jī)采樣方法,分析了土地整理前后玉米地土壤碳排放及其影響因子的變化情況。結(jié)果表明:(1)土地整理后,巨鹿縣和柏鄉(xiāng)縣整理區(qū)玉米生長(zhǎng)旺盛時(shí)期的土壤碳排放量增加,但均沒有達(dá)到統(tǒng)計(jì)上的顯著性水平,這說明在玉米生長(zhǎng)旺盛時(shí)期,土地整理項(xiàng)目的開展暫未影響土地整理區(qū)土壤的碳排放。(2)在玉米生長(zhǎng)旺盛時(shí)期,影響土壤碳排放變化的多個(gè)因子中,只有巨鹿縣土地整理區(qū)的土壤碳氮比和柏鄉(xiāng)縣土地整理區(qū)的葉面積指數(shù)在土地整理前后發(fā)生了顯著變化,其他因子雖然變化的大小和方向存在不一致,但是變化量均不顯著。
[Abstract]:The research on carbon emission of land consolidation is of great significance to optimize land use pattern and cope with climate change. Taking the land consolidation projects in Julu County and Baoxiang County of Xingtai City Hebei Province as examples the changes of soil carbon emissions and their influencing factors in cornfield before and after land consolidation were analyzed by indirect sampling and random sampling. The results showed that after land consolidation, the soil carbon emissions of maize in Julu County and Baoxiang County increased, but they did not reach the statistically significant level, which indicated that in the period of maize growth, The development of land consolidation project has not affected the soil carbon emissions in the land consolidation area. (2) in the maize growing period, there are many factors that affect the change of soil carbon emission. Only the soil C / N ratio of land consolidation area in Julu County and the leaf area index of land consolidation area in Baixiang County changed significantly before and after land consolidation, but the change of other factors was not significant, although the magnitude and direction of the change were different.
【作者單位】： 國(guó)土資源部土地整治中心;國(guó)土資源部土地整治重點(diǎn)實(shí)驗(yàn)室;國(guó)土資源部農(nóng)用地質(zhì)量與監(jiān)控重點(diǎn)實(shí)驗(yàn)室;中國(guó)科學(xué)院遙感與數(shù)字地球研究所;石家莊工程技術(shù)學(xué)校;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(41401201) 國(guó)土資源部公益性行業(yè)科研專項(xiàng)(201311127)資助
【分類號(hào)】：S513;S154.1

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