描述:
rmit put forward the theory is
unique, but both thought in the Han literature are complementary. Similarly, the Han
Dynasty's political, economic, and cultural fields may affect the emotional hermit scholars, in
which Qu Yuan complex, monarch and his subjects haphazard about this relation with an
example.
描述:
est region,
which c
ombined with the
water-saving, agricultural soil and water conservation techniques, and then taken "
drought
resistance, reduce erosion, increase efficiency" as a principle.
描述:
ttention, but
also agriculture and eco-environmental sustainable development important
problems. Farming-pastoral Transitional zone in north China, as our county
returning farmland to forest and returning cropping land to grassland are the
focus areas, natural environment and socio-economic conditions shown a
clear transition characterized by the transition zone of the interpenetration and
staggered distribution of agriculture and animal husbandry, which is curbing
desertification important ecological barrier, but also ecologically fragile belts.