Effect of Water Allocation of the Heihe River on Plan Structure and Stable Development of the Ecosystem in the Linze Oasis, Gansu ——A Case Study in the Pingchuan Irrigation District in Linze County at the middle reaches of the Heihe River
Water allocation of the Heihe River and commercial utilization of water will exert a profound influence on adjustment of plant structure, water save and conceding the land in the Linze oasis. However, there are some problems that cannot be neglected, such as electing the course and time of water adjustment, effectively handling the contradiction between water supply and water demand, utilizing the water resource rationally and high-efficiently and so on. Especially, excessively exploiting groundwater and ch...