本文關鍵詞： 林下水土流失 規(guī)則判別 遙感 植被覆蓋度 植被健康狀況　出處：《地理科學》2017年08期 　論文類型：期刊論文

【摘要】：針對林下水土流失缺乏有效判別方法的問題,提出了一種遙感判別方法。該方法以植被覆蓋度、植被健康度、土壤裸露度和坡度為判別因子,采用規(guī)則法來建立林下水土流失遙感判別模型,并將其應用于福建省長汀縣。結果發(fā)現,長汀縣有311.66 km~2的林地發(fā)生不同程度的林下水土流失,其中有13.35%的土壤侵蝕強度達到中度。通過遙感方法識別出的林下水土流失區(qū)的空間分布位置可為該縣今后深入治理水土流失提供目標靶區(qū)。
[Abstract]:In view of the lack of effective discriminant method for soil and water loss under stands, a remote sensing method is proposed, which takes vegetation coverage, vegetation health, soil nudity and slope as discriminant factors. A remote sensing discriminant model of soil and water loss under forest was established by rule method and applied to Changting County, Fujian Province. The results showed that there were 311.66 km~2 of forest land in Changting County. Among them, 13.35% of the soil erosion intensity is moderate, and the spatial distribution of soil erosion area under forest can be identified by remote sensing method, which can provide a target area for the further control of soil and water loss in this county in the future.
【作者單位】： 福州大學環(huán)境與資源學院/遙感信息工程研究所;空間數據挖掘與信息共享教育部重點實驗室/福建省水土流失遙感監(jiān)測評估重點實驗室;澳大利亞弗林德斯大學環(huán)境學院;福建省水土保持監(jiān)測站;
【基金】：國家科技支撐項目(2013BAC08B01-05) 福建省教育廳重點項目(JA13030)資助~~
【分類號】：S714.7;TP79
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本文編號：1532432