Shi Xuezheng,Yu Dongsheng.Bioengineering Harnessment of Soil Erosion for National Subtropic Zone[J].Research of Soil and Water Conservation,1999,6(02):138-142.
我国亚热带土壤侵蚀的生物工程治理
- Title:
- Bioengineering Harnessment of Soil Erosion for National Subtropic Zone
- Keywords:
- Chinese subtropic zone; soil erodibility; soil erosion types; bio-engineering harnessments
- 摘要:
- 我国亚热带具有丰富的水热资源，物产丰富，但由于不合理的土地利用使土壤侵蚀仍有不断增加的趋势，其原因是由于这一地区降雨侵蚀力大；地貌以丘陵和山地为主，坡度较大；土壤的可蚀性较高以及在本世纪经历了四次较大规模的森林毁坏。本区按土地利用不当引起的土壤侵蚀类型可划分成农用耕地侵蚀和裸地稀疏林地侵蚀。按土壤侵蚀程度、独特的成土母质以及土地利用分别阐述了各种生物工程治理措施。
- Abstract:
- There are richer water and heat resources and much more plant and animal products could been produced in the national subtropic zone. However,unrational soil uses for long term period have made the soil erosion more severe. The reasons caused this trend is partly to more heavy of the rainfall erodibility,more slopy of the hillyfields,and more erodiable of soil types,especially for the larger scale forestry damaging since 20th century. The soil erosion types could been divided into two ones,agritillable soil erosion and barren tree soil erosion. Based on the soil erosion scales,soil materials and soil use targets,the author elaborated the various bioengineering harnessment measures respectively.
参考文献/References:
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7 中国科学院南方山区综合科学考察队.中国亚热带东部丘陵山区水土流失与防治.北京:科学出版社, 1989.1
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备注/Memo
收稿日期:1999-4-15