With ever-increasing nati onal concern of water shortage, allowed intake of water from the Yellow River wo uld be cut down while cultivated land is expanding under social and economical i nfluences.

• 水资源短缺问题受到越来越广泛的关注，该地区引黄河水量将进一步削减，但另一方面随着社会和经济的发展，耕地面积将进一步扩大；