农业经济的发展是华夏文明形成的最重要的前提条件之一,郑洛地区作为夏商王朝建都和统治的核心区域,其农业经济发展状况一直是学术界研究的重点问题。相关研究表明,多品种农作物种植制度在龙山时期中原地区的出现,在华夏文明的形成过程中可能起到了至关重要的作用。为了探索这一种植制度在商代前期中原地区的具体实践情况,本文选取河南新郑望京楼遗址夏商时期（二里头文化和二里岗文化时期）29例先民肢骨和23例先民肋骨进行C、N稳定同位素分析。结果表明,先民骨胶原的δ¹³C值变化范围为-18.1‰~7.0‰,平均值为-9.5‰±2.1‰（n=52）,δ¹⁵N值变化范围为7.3‰~10.5‰,平均值为8.9‰±0.7‰（n=52）,先民仍以C₄类食物（粟黍）为主,但是也包含少量C₃类（水稻、小麦或大豆）食物,证明中原地区自龙山时代出现的多品种农作物种植制度,在商代得以延续,但是粟作农业的主导地位,始终未发生明显变化,这可能与中原地区长期以来的旱作农业经济模式习惯有关。

The development of the agricultural economy is one of the most important prerequisites for the formation of the Chinese civilization. As the core area of the capital of the Xia and Shang dynasty, the Zhengluo area has always been the focus of academic research. Related research shows that the emergence of multi-crop planting systems in the Central Plains during the Longshan period may have played a vital role in the formation of the Chinese civilization. In order to explore the application of this planting system in the Central Plains in the early Shang Dynasty, this paper selects 29 cases of limbs and 23 cases of ribs of human at the Wangjinglou site, Xinzheng, Henan Province belonging to the Xia and Shang dynasty (from Erlitou culture to Erligang culture) and carry out the C and N stable isotope analysis. The results show that the δ¹³C value of the human bones varied from -18.1‰ to -7.0‰, with an average value of -9.5‰±2.1‰ (n=52), and the δ¹⁵N value varied from 7.3‰ to 10.5‰, with an average value of 8.9‰± 0.7‰ (n=52), indicating that people still relied primarily on C₄ foods, but also contained a small amount of C₃ foods, proving that the multi- crop planting system that emerged in the Central Plains since the Longshan period was continued in the Shang dynasty. However, the dominant position of millet-based agriculture has not changed significantly, which may be related to the traditional habit of dry farming in the Central Plains.