The spatial pattern of agricultural land use in China during the Holocene Megathermal

IF 1.2 4区 环境科学与生态学 Q4 ECOLOGY
Rangeland Journal Pub Date : 2021-08-23 DOI:10.1071/rj20103
J. Wu, T. Zhu, C. Li, C. Zhang, B. Adu
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Abstract

During the Holocene Megathermal, China entered a stage of extensive agricultural farming, although there are few reports on the possible distribution pattern of agricultural land use. The main objective of this paper is to discuss issues related to the spatial pattern of agricultural land use in China during the Holocene Megathermal. According to historic and archaeological information, three widely planted crops (foxtail millet, broom millet and rice) were selected to represent the main crops, and their distribution was assumed to reflect the agricultural land-use pattern at that time. From the perspective of these crops and their required climate conditions and based on proxy-based ancient temperature and precipitation data combined with modern climate data, an average annual accumulated temperature of ≥10°C in the Holocene Megathermal was retrieved and spatially interpolated to capture a picture of land use. Validation was conducted using archaeological data from 141 agricultural heritage sites. The results indicated that in the Holocene Megathermal, agricultural farming activities were widespread in China The northern-most boundary of agricultural land use was north of Daxinganling, and the southern-most boundary extended to Hainan Island. In the region of the Qinghai–Tibet Plateau where climate is currently much colder than during the Holocene Megathermal, the environment for foxtail millet and broom millet was suitable from the eastern segment of the Qilian Mountains to Lhasa. This study provides a reference for exploring the distribution pattern of agricultural land use in the early period of agricultural production in China and provides useful information for agricultural archaeology.
全新世大暖期中国农业用地空间格局
在全新世高温期间,中国进入了广泛的农业耕作阶段,尽管关于农业土地利用可能的分布模式的报道很少。本文的主要目的是探讨全新世高温期中国农业土地利用空间格局的相关问题。根据历史和考古信息,选择了三种广泛种植的作物(狐尾小米、扫帚小米和水稻)作为主要作物,并假设它们的分布反映了当时的农业土地利用模式。从这些作物及其所需气候条件的角度,基于基于代理的古代温度和降水数据,结合现代气候数据,检索并空间插值全新世超高温的年平均累积温度≥10°C,以捕捉土地利用情况。使用141处农业遗产地的考古数据进行了验证。结果表明,在全新世高温期,我国农业耕作活动广泛,农业用地最北端在大兴安岭以北,最南端延伸到海南岛。青藏高原气候较全新世高温期冷得多,从祁连山东段到拉萨,谷子和扫帚的生长环境较为适宜。本研究为探索我国农业生产早期农业用地分布格局提供了参考,为农业考古提供了有益的信息。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Rangeland Journal
Rangeland Journal 环境科学-生态学
CiteScore
2.90
自引率
8.30%
发文量
14
审稿时长
>36 weeks
期刊介绍: The Rangeland Journal publishes original work that makes a significant contribution to understanding the biophysical, social, cultural, economic, and policy influences affecting rangeland use and management throughout the world. Rangelands are defined broadly and include all those environments where natural ecological processes predominate, and where values and benefits are based primarily on natural resources. Articles may present the results of original research, contributions to theory or new conclusions reached from the review of a topic. Their structure need not conform to that of standard scientific articles but writing style must be clear and concise. All material presented must be well documented, critically analysed and objectively presented. All papers are peer-reviewed. The Rangeland Journal is published on behalf of the Australian Rangeland Society.
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