Taiwan has always attached great importance to management of mountain slopes, and its steepslope water and soil conservation system has been a reference for the water and soil conservation in hot and rainy regions. From the perspective of water and soil ecology theory, new forms of water and soil loss emerged since the industrialization and urbanization of Taiwan, also known as hidden water and soil loss, such as soil hardening, change of original landform, destruction of ecological landscape etc.. These losses should be controlled through water and soil conservation measures such as initial involvement, dynamic analysis, systematic treatment and disaster avoidance, all production and construction activities should follow three elements(water, soil and vegetation) and their correlation laws, in order to maintain water and soil ecological balance. By integrating water and soil ecological concepts, water and soil conservation in Taiwan will make more progress.
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