作物复种方式不断优化，复种指数呈波动式增长。
Multi-cropping optimized and cropping density increased in wave.
复种指数潜力；
耕地灌溉率、复种指数、耕地灌溉面积、粮食产量不断提高；
At the same time, the multiple cropping index, irrigation area, grain yield and the rate of irrigation had been improved increasingly.
统计验证表明，复种指数提取结果与不同尺度的统计数据均有很高的一致性。
Statistical validation shows that there is great consistency between extracted multiple cropping index and statistical data at different scale. So the results of this dissertation are believable.
攀西地区下湿田增种早春作物，是充分利用春季光温资源，提高复种指数的有效措施。
Increasing planting early crops on the wetland is an effective measure to fully utilize the spring season resources of temperature or light and raise multiple crop index.
该文以我国华北平原为研究区域，提出了基于小波变换的耕地复种指数遥感提取方法。
This study choose the North China Plain as study area and proposed a new method of multiple cropping extraction from remote sensing data based on wavelet transform.
该文以我国华北平原为研究区域，提出了基于小波变换的耕地复种指数遥感提取方法。
This study choose the North China Plain as study area and proposed a new method of multiple cropping extraction from remote sensing data based on wavelet transform.
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