本文選題：農(nóng)田生態(tài)系統(tǒng) + 碳源�。� 參考：《中國農(nóng)業(yè)大學(xué)學(xué)報(bào)》2016年07期

【摘要】：依據(jù)2002—2013年山東省17地市農(nóng)業(yè)投入、播種面積以及作物產(chǎn)量等統(tǒng)計(jì)數(shù)據(jù),對全省各地市農(nóng)田生態(tài)系統(tǒng)進(jìn)行碳源、碳匯估算,從中分析其變化規(guī)律,并探討造成碳源、碳匯時(shí)空變化的影響因素。結(jié)果表明:山東省農(nóng)田系統(tǒng)具備較強(qiáng)的碳匯能力,碳吸收量明顯高于碳排放量,兩者的總量之比為4.32∶1;碳吸收量和碳匯量呈增加趨勢,碳排放量和碳足跡呈降低趨勢;農(nóng)田生態(tài)系統(tǒng)表現(xiàn)出較大的碳生態(tài)盈余,碳足跡占同期耕地面積的比值呈現(xiàn)降低趨勢,2002年為27.71%,2013年為20.96%;17地市之間單位面積碳匯量和單位面積碳足跡存在明顯差異,2013年單位面積碳匯量最高的為德州市(6.20t/hm~2)、最低為威海市(3.02t/hm~2),單位面積碳足跡最高的威海市為0.26hm~2/hm~2、最低的泰安市為0.08hm~2/hm~2。
[Abstract]:Based on the statistical data of agricultural input, sown area and crop yield in 17 cities of Shandong Province from 2002 to 2013, the carbon sources and carbon sinks of farmland ecosystem in various cities of Shandong Province were estimated, and the changing rules of carbon sources were analyzed, and the causes of carbon sources were discussed. Influencing factors of carbon sequestration in time and space. The results show that the farmland system of Shandong Province has a strong carbon sink capacity, the carbon absorption is obviously higher than the carbon emission, the ratio of the total amount of carbon absorption and carbon sink is 4.32: 1, the carbon absorption and carbon sink are increasing, and the carbon emission and carbon footprint are decreasing. The farmland ecosystem showed a large carbon ecological surplus. The ratio of carbon footprint to cultivated land in the same period showed a decreasing trend, which was 27.71% in 2002, 20.96% and 20.96% in 2013. In 2013, the carbon sink per unit area and carbon footprint per unit area were the highest in Dezhou City (6.20t/hm~2) and the lowest in 2013. In Weihai City (3.02t/hm~2), the highest carbon footprint per unit area in Weihai City is 0.26hmmrhmmf2, and the lowest in Taian City is 0.08hmmmmmmmmmt2hmrmmmt2.
【作者單位】： 臨沂大學(xué)資源環(huán)境學(xué)院;山西大學(xué)黃土高原研究所;
【基金】：山東省自然科學(xué)基金項(xiàng)目(ZR2015DL002) 臨沂市科技惠民計(jì)劃(2015HM004) 國家星火計(jì)劃(2015GA740064)
【分類號】：S181

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