桤柏混交林是紫色土的主要人工混交类型，在长江防护林建设中有重要作用。

Mixed alder and cypress forest is a main mixed type on purple soil, playing an important role in the construction of protection forests in the Changjiang River basin.

youdao

桤柏混交林是紫色土的主要人工混交类型，在长江防护林建设中有重要作用。

Mixed alder and cypress forest is a main mixed type on purple soil, playing an important role in the construction of protection forests in the Changjiang River basin.

youdao