Vegetation density as deduced from ERTS-1 MSS response
Vegetation density as deduced from ERTS-1 MSS response
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根据 ERTS-1 MSS 响应推导出的植被密度
DOI：
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发表时间：
1974
期刊：
影响因子：
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通讯作者：
A. Richardson
中科院分区：
文献类型：
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作者：
C. Wiegand;H. Gausman;J. A. Cuéllar;A. H. Gerbermann;A. Richardson
在0.75 ~ 1.35微米波段范围内，植被反射率随植被密度的增加而增加。因此，ERTS-1波段6（0.7至0.8微米）和7（0.8至1.1微米）包含的信息应该与作物的可能产量和牧场的动物承载能力有关。以3块玉米田、10块高粱田和10块棉花田为研究对象，设计了叶面积指数（LAI）、植物种群、植被覆盖、株高与ERTS-1 MSS响应关系的试验。在描述高粱田和玉米田时，植物种群与LAI一样有用；在描述棉田时，植物高度与LAI一样有用。这些发现一般支持ERTS-1数据在解释绿色生物量、可收获饲料和其他生产力指标的变异性方面的效用。
Reflectance from vegetation increases with increasing vegetation density in the 0.75- to 1.35 micron wavelength interval. Therefore, ERTS-1 bands 6 (0.7 to 0.8 micron) and 7 (0.8 to 1.1 micron) contain information that should relate to the probable yield of crops and the animal carrying capacity of rangeland. The results of an experiment designed specifically to test the relations among leaf area index (LAI), plant population, plant cover and plant height, and the ERTS-1 MSS responses for 3 corn, 10 sorghum, and 10 cotton fields are given. Plant population was as useful as LAI for characterizing the sorghum and corn fields, and plant height was as good as LAI for characterizing cotton fields. These findings generally support the utility of ERTS-1 data for explaining variability in green biomass, harvestable forage and other indicators of productivity.