罗地河小流域侵蚀景观格局的变化

The Change of Eroded Landscape Pattern in the Small Valley of Ruodi River

分析了罗地河小流域治理前后侵蚀景观的变化 .研究结果表明 :集中的强化治理虽然没能改变景观的基质 ,但能大大改变流域的侵蚀景观 ,且明显改善了生态环境 .对于强度流失而言 ,一次性的强化治理难以达到减轻流失程度的目的 ,只有持续地维护治理成果 。

The change of eroded landscape pattern was studied before and after the small valley of Luodi River of Changting, Fujian was tackled. It was indicated that the eroded landscape of the valley could be changed greatly and ecological environment was improved apparently, although the matrix of landscape was unchanged. Therefore, the writer concluded that it is hard to achieve the objective of lightening the degree of water and soil erosion. Only by containing achievement of harness successively, can the ecological environment of the valley be improved gradually.