上海市主要作物秸秆资源估算及分析

Estimations and Analyses on Straw Resources of Major Crops in Shanghai

为进一步合理高效利用秸秆资源,通过秸秆估算公式计算出上海市主要区县的秸秆产量、2013年上海市秸秆养分总量及能源化利用的标准煤当量。2013年上海市秸秆产量为106.23万t,所含N、P_2O_5和K_2O分别为0.9、0.3、2.3万t,总养分约为3.5万t。理论上秸秆全部转化为能源相当于节省4.7×10^5t标准煤。对于丰富的秸秆资源,应有合理的回收及利用途径,防止焚烧对空气造成不利影响。

In order to take full advantage of the crop straw resources, its yield in main districts/county of Shanghai City, as well as the total nutrient contents herein and the standard coal equivalent if the straw was utilised were calculated by an estimation formula. The results showed that the annual yield of crop straw in 2013 was about 1.062,3 million tonnes, in which contained 0.9x 10^4 tonnes of nitrogen, 0.3x 10^4 tonnes of P2O5 and 2.3 x 10^4 tonnes of K20, amounting to 3.5 x 10^4 tonnes of total nutrients. Theoretically, all crop straw could be converted to energy to save 4.7 x 10^2 tonnes of standard coal equivalently. Therefore, for the abundant crop straw resources, appropriate ways to recover and utilise should be available to prevent from burning of straw otherwise the air quality could be adversely affected.