College of Resources and Environmental Sciences; National Academy of Agriculture Green Development, China Agricultural University, 100193, Beijing, China.
Sanya Institute of China Agricultural University, 572025, Sanya, Hainan, China.
Sci Data. 2023 Apr 19;10(1):223. doi: 10.1038/s41597-023-02154-7.
China's rapid increase in mass excreta and its environmental discharge have attracted substantial attention. However, cropland as a main destination of excreta utilization has not been extensively evaluated. Here, a national survey was used to assess the utilization of manure in croplands across China. The data included the inputs of manure nitrogen (N), phosphorus (P), and potassium (K) for cereals, fruits, vegetables, and other crops, along with the manure proportion of total N, P, and K inputs at the county level. The results showed that the manure N, P, and K inputs were 6.85, 2.14, and 4.65 million tons (Mt), respectively, constituting 19.0%, 25.5%, and 31.1% of the total N, P, and K, respectively. The spatial distribution of the manure proportion of total inputs was lower in Eastern China and higher in Western China. The results provide a detailed description of the utilization of manure nutrients in agricultural areas throughout China, which will serve as basic support for policymakers and researchers involved in future agricultural nutrient management in China.
中国的粪便产量迅速增加及其环境排放已引起广泛关注。然而，粪便作为主要的农田利用目的地尚未得到广泛评估。本研究利用全国性调查评估了中国农田粪便养分利用情况。数据包括中国粮食作物、经济作物、蔬菜和其他作物的粪肥氮（N）、磷（P）和钾（K）投入，以及县级养分投入中粪肥 N、P 和 K 的比例。结果表明，粪肥 N、P 和 K 的投入量分别为 685 万吨、214 万吨和 465 万吨，分别占总 N、P 和 K 的 19.0%、25.5%和 31.1%。粪肥在养分总投入中所占比例的空间分布在华东地区较低，在西部地区较高。该研究结果详细描述了中国农业区的粪便养分利用情况，可为未来中国农业养分管理的政策制定者和研究人员提供基础支持。
