描述:
ainly chooses three aspects, the quantity and quality
of farmland, the land system and agricultural technology, to analysis the fact that the land system,
the land utilization patterns and the selection of agricultural technology are constrained by natural
environment and land resources, accordingly reveal the main-land relationship which is influenced
by natural environment. The thesis is composed of four parts.
描述:
At the same time, people’s life are
glutted with living style of western modern culture and western modern thoughts, which
make people feel themselves rich in goods, but ragged in spirit. Worry, dullness, despair
and fear bow the heart and turn the spirit back to the dust.
描述:
ainly chooses three aspects, the quantity and quality
of farmland, the land system and agricultural technology, to analysis the fact that the land system,
the land utilization patterns and the selection of agricultural technology are constrained by natural
environment and land resources, accordingly reveal the main-land relationship which is influenced
by natural environment. The thesis is composed of four parts.
描述:
ium between the grain production
and water resource: the drought and the irrigation area in northeast china, the drought and the
irrigation region in Huanghuaihai area, the drought and the irrigation area in northwest
china.The article analized the characteristic of water using of the main crops and the main
cropping systems, compared the economic benefit of the water-saving planting patterns,
studied the economic benefit, the water-saving benefit and participatory farmers survey
results etc. of the water-saving technologies.
描述:
and trends,
these new situation on the traditional family ethics raised new challenges in the
traditional Confucian family ethics formed a huge impact.
描述:
eat attention to adopting
various techniques to improve soil quality when plowing the soil, so that the soil could keep
sustainable fertility and high rate of yield.