Simulation of citrus production space based on MaxEnt

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