文献类型： 外文期刊

作者： Lin, Zhengyu ¹ ; Chen, Chunyan ¹ ; Liu, Yuanli ¹ ; Liu, Guanghui ³ ; He, Peng ² ; Liao, Guitang ⁴ ; Gao, Wenbo ¹ ; Cao, Ji ¹ ; Shao, Zhouling ¹ ;

作者机构： 1.Sichuan Acad Agr Sci, Inst Agr Informat & Rural Econ, Chengdu, Peoples R China

2.Sichuan Agr Univ, Coll Resources, Chengdu, Peoples R China

3.Chengdu Land & Resources Informat Ctr, Chengdu, Peoples R China

4.Chengdu Univ Informat Technol, Coll Resources & Environm, Chengdu, Peoples R China

关键词： land use; crops suitability; maximum entropy model(MaxEnt); multi-scenario simulation; citrus

期刊名称：FRONTIERS IN ENVIRONMENTAL SCIENCE （ 影响因子：5.411； 五年影响因子：6.313 ）

ISSN：

年卷期： 2022 年 10 卷

页码：

收录情况： SCI

摘要： Crop production space is the most important part of land use system, and spatial simulation has always been the key task of land science. Crop production space is affected by many factors on different spatio-temporal scales, which leads to the complexity of simulation models. The existing simulation models also have the limitations of lack of human factors, large simulation area and excessive reliance on expert experience. Sichuan Province is a typical area of Citrus spatial expansion in China, so it is of great practical significance to carry out spatial regulation. From the comprehensive perspective of nature and humanity, this research uses MaxEnt, ArcGIS, Orcale, SQL to design a spatial regulation method (CSSM) for citrus, predict the citrus production space in Sichuan Province in 2025, and put forward regulation suggestions. The results showed that the citrus spatial simulation method better reflects the comprehensive effect of natural and human factors on crop space, and realizes the research on the regulation of single crop production space. The dominant environmental variables affecting citrus production in Sichuan are input of production factors, society, climate and terrain. Human activities play a leading role. The suitable environment for citrus production in Sichuan is: elevation <= 500m, annual average temperature >= 16.5 degrees C, aspect are northeast, southwest and northwest, supported by preferential policies, the input of Citrus fertilizer in the county is >= 500t, the input of Citrus labor in the county is >= 5,000, the input of Citrus pesticide in the county is >= 12.5t, and the technical progress represented by unit yield is 750-7000 t/km(2). The suitable space for citrus production in Sichuan are mainly located in Zigong, Nanchong, Ziyang, Neijiang, Meishan, Leshan, Yibin and Luzhou. The government should choose a positive low growth scenario to stabilize the citrus area in Sichuan at 3533 km(2) in 2025, and form a major citrus production area in Meishan, Ziyang, Neijiang, Chengdu, Nanchong and Yibin.