Hydroperiod and phenology prediction in a Central Kalimantan peat swamp forest by using MODIS data
Hydroperiod and phenology prediction in a Central Kalimantan peat swamp forest by using MODIS data
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DOI：
10.3759/tropics.15.435
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发表时间：
2006-09
期刊：
影响因子：
0.7
通讯作者：
S. Shimada;Hidenori Takahashi;S. Limin
中科院分区：
文献类型：
--
作者：
S. Shimada;Hidenori Takahashi;S. Limin
在这项研究中，为了监测季节性功能的泥炭沼泽森林遥感数据，我们试图预测水文周期和物候的泥炭沼泽森林在加里曼丹中部使用多时相TERRA-MODIS数据。我们开发了一种小生境方法，压缩成四个季节的NDVI图像的月NDVI图像的一年期。利用当地地下水位变化的程度和方位来区分四个季节。五种物候类型，即：根据NDVI值的季节变化，将其划分为喜干、嫌干、喜湿、嫌湿和混合物候。指出了疏干林物候类型在旱季植被的水分亏缺胁迫和疏湿林物候类型在雨季植被的水分亏缺胁迫。阐明了水文周期对泥炭沼泽森林物候的强烈影响。
In this study, in order to monitor seasonality function in peat swamp forests by remotely sensed data; we attempted to predict the hydroperiod and phenology of a peat swamp forest in Central Kalimantan using multi-temporal TERRA-MODIS data. We developed a niche method to compress the monthly NDVI images of a one-year period into four seasonal NDVI images. The four seasonal periods were discriminated by using the degree and aspect of the local groundwater levels. Five phenology types, i.e., Dry-philous, Dry-phobous, Wet-philous, Wet-phobous, and Mixed phenology, were classified from the seasonal fluctuation in NDVI values. Water-deficit stress of vegetation during the dry season in the Dry-phobous forest phenology type, and the water-flooding stress of vegetation during the wet season in the Wet-phobous forest phenology type were indicated. The strong effect of the hydroperiod on the forest phenology of peat swamp forests is clarified.