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1986年和1996年两次土壤侵蚀遥感普查的结果表明:辽宁全省土壤侵蚀面积减少了11486.9km2,侵蚀强度呈明显下降趋势,10a间全省轻、中、强各级土壤侵蚀面积分别减少4358.7km2、6289.8km2和3838.1km2。值得关注的是原来土壤侵蚀较轻的9个市程度不同地出现了强度土壤侵蚀,且有丘陵区强度侵蚀面积减少,低山、中山区增加的趋势。因此,下世纪辽宁水土保持工作的重点是:依法预防新的水土流失;依靠科技进步,巩固和扩大治理成果;实现预防管护法制化,决策依据数量化、治理运筹经济化,建立一个高效运转的职能机构,理论联系实际富有超前意识的科技体系和一系列富有经济实效的科学治理措施体系。
The results of two remote sensing surveys of soil erosion in 1986 and 1996 showed that the area of soil erosion in Liaoning province decreased by 11486.9km2 and the erosion intensity decreased obviously. The area of soil erosion at the light, medium and strong levels of the province decreased by 4358 .7km2,6289.8km2 and 3838.1km2. What deserves our attention is that the intensity of soil erosion appeared differently in nine cities where the original soil erosion was relatively light, and the erosion area in the hilly area decreased, while that in the lower mountain and the middle mountain increased. Therefore, the key points of soil and water conservation work in Liaoning in the next century are: preventing new soil and water loss according to law; relying on scientific and technological progress, consolidating and expanding governance results; legalizing prevention and control, quantifying the basis for decision-making, managing economic operation and establishing an efficient operation The function of institutions, the theory linked with the actual rich sense of advance science and technology system and a series of cost-effective system of scientific management measures.