沟谷地是一种河岸带，它具有河岸带的基本功能：过滤和屏障。
Gully region is the riparian areas with basic function-filter and barrier.
同一序列中，阴坡、沟谷地具有比阳坡、沟间地复杂的演替后期群落；
And on the same section, the communities of the shade and gully region are more complex.
从分水岭到沟缘，土壤肥力呈衰减趋势，沟谷地向沟床呈增大的变化趋势，其主要是水土流失的结果。
Mostly because of water and soil loss the soil fertility became declining from watershed to the edge of gully, and the area was enlarging from gully valley to riverbed.
从分水岭到沟缘，土壤肥力呈衰减趋势，沟谷地向沟床呈增大的变化趋势，其主要是水土流失的结果。
Mostly because of water and soil loss the soil fertility became declining from watershed to the edge of gully, and the area was enlarging from gully valley to riverbed.
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