东北地区西部沙漠化防治途径探讨

东北地区西部有以风沙活动为显著标志的沙漠化土地近6.7万km~2,当地生态环境恶化,严重制约着农、林、牧各业的发展。随着继续强度土地利用,并在持续干旱与风力作用下,土地沙漠化加剧,逐渐向东北地区腹部蔓延扩大,沙漠化的防治是一项关系到东北地区经济建设和发展的紧迫任务。本文提出以水利为先导,以生物为主体,开展沙漠化土地治理的新途径;建议沙漠化治理按流域进行分区,将沙漠化的防治与流域水土保持融为一体,从而体现防治和治理的高效性、先进性和群众性,逐渐形成东北地区防沙屏障,实现治理区生态环境的良性循环。

Probe into the Way to Prevent Land Desertification in West Part of North-east China

There are about 67 thousand square kilometer desertificated land with wind activity as its remarkable char-acteristic in the west part of North-east China. The deterioration of local ecologic environment stricktly con-fines the development of agriculture, forestry and animal husbandry. Along with the intensive utilization of land, the desertification of land sharpened and enlarged gradually to the east part, so the control of land de-sertification is an urgent task related to the economic development of the North-east China. The paper points out a new way to prevent land desertification by taking water conservancy as the priority work and plant as dominant factor. The author suggests that the control of desertification be carried out according to sub-divi-sion of watersheds and combining with the soil and water conservation work so as to reflect the high effi-ciency, advancement and mass participation of prevention and harnessment. Wind break in the North-east China will be gradually formed and the benign cycle of ecologic environment in the controlled area could be expected.