这为分析沙棘光合作用对环境因子的响应程度，分析沙棘最适生理生态条件，提高沙棘生产力提供科学依据。
These provided scientific basic data for analyzing degree of photosynthetic rate responding the environmental factors, analyzing optimum condition of physiological ecology and improving productivity.
重庆由于自然资源、生态条件得天独厚，是世界上柑桔生产的最适宜产区之一，柑桔也是最具竞争力的优势作物。
Because of the better natural resource and ecological condition, Chongqing is always one of the best citrus production areas in the world, and citrus has more competitive ability than other crops.
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