描述:
be given when fully and rational use of local
climatic resources such as solar radiation, heat and water, while other conditions (such as soil
fertility, carbon dioxide concentration, cultivation level etc.)
描述:
conducted full irrigation (CK),
mild regulated deficit irrigation and moderate regulated deficit irrigation with melon varieties
of Ymdi and Yujinxiang in three growth stages including sowing to flowering time, flowering
to fruit expanding stage and fruit expanding to picking time.
描述:
large-scale farming tool that can
water
continuously from the ground-surface water in the rivers, lakes, or pools, and is mainly applied to lifting
water to the high ground or drain water in the low-lying farmland. Due to the reason that the traditional
描述:
th, the demand of water resource is
continuously increasing. That is to say water shortage has become a global problem. Water
resources carrying capacity is the basis and prerequisite of regional socio-economic development,
which is significant to realize the coordinated development of regional "water resources-
ecological environment-socio-economy" composite system. So it has become the focus and hot
topic in water science field nowdays.
描述:
th, the demand of water resource is
continuously increasing. That is to say water shortage has become a global problem. Water
resources carrying capacity is the basis and prerequisite of regional socio-economic development,
which is significant to realize the coordinated development of regional "water resources-
ecological environment-socio-economy" composite system. So it has become the focus and hot
topic in water science field nowdays.
描述:
fter the land reform, collectivization and the
commune movement set up centralized mobilization system for the period of the traditional
system the effective implementation of water policy provides a strong foundation.
描述:
ncentrated v}}ith 85% of the
total dry lands. and it is important for the national economy and the countr<0's strategic
agricultural growth. Northwest arid areas basically depend on natural precipitation. water
shortage has seriously affected the farmers practices. The decision of farmers to plant dry
land is a two-stage decision-making behavior: They first have to decide whether to plant
dry land, and then decide what kind of crops planted in the dry lands. It is essential to find
effective ways to raise the enthusiasm of farmers planting and reasonable arrangements for
dry land crop structure. However. ver}} few people study dry land farming practice from the
perspective of water shortages.