长期以来，研究植物的科学家采用卫星测量植被的新鲜指数，即观测植物反射阳光值，预测植物的状态。 植物新鲜指数的变化是季节性的。
Scientists who study plants and trees from space have long relied on satellite-derived measures of “greenness”—that is, observations of the amount of sunlight reflected by vegetation.
天然植物油具有粘度指数高、无毒、具有极好的生物降解性、低挥发性、良好的润滑性，且属于可再生资源。
Natural plants oil has higher viscosity index, no poison, excellent bio-degrade ability, low volatility, better lubricity, and most important, it is a renewable resource.
水沼泽植物群落的优势度指数大于丘状沼泽。
应用推荐