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Position: Home > Articles > Roles of Self-recovering Vegetation in Soil and Water Conservation in Development and Construction Projects Bulletin of Soil and Water Conservation 2007,27 (6) 138-141

开发建设项目中植被自然恢复的水土保持作用

作  者:
常彦平;聂兴山
单  位:
山西省水土保持科学研究所;山西省忻州市水利局
关键词:
植被自然恢复;植物群落;建群种;盖度
摘  要:
通过分析最新的水土保持监测所获得的实地植被调查样方资料,论述了植被自然恢复在开发建设项目中的水土保持作用,并结合监测实践,探讨了植被自然恢对水土保持评价指标的影响。(1)在山西省雨量较为充沛的地区,如果重视保留表土并用之覆盖地表,就能使地面植被得到较大程度的自然恢复,其恢复面积占可绿化面积的比例约达25%。(2)在雨量较多地区的扰动地面,依靠植被自然恢复功能,可使植被盖度在1~2 a内达到50%以上,形成初级植被。(3)由于对乔灌木等深根性植物的破坏较为严重,因此,在1~2 a时间内,扰动地面上自然恢复所形成的植被一般为草本群落,并不能完全恢复当地的灌草植被、疏林灌草植被。
译  名:
Roles of Self-recovering Vegetation in Soil and Water Conservation in Development and Construction Projects
作  者:
CHANG Yan-ping~1 NIE Xing-shan~2 (1.Xinzhou Water Conservancy Bureau of Shanxi Province,Xinzhou,Shanxi 034000,China; 2.Shanxi Research Institute of Soil and Water Conservation,Luliang,Shanxi 033001,China)
关键词:
self-recovering vegetation;;vegetation community;;founding group seed;;coverage degree
摘  要:
According to the data from the investigation of vegetation with soil and water conservation super- vise measures,this paper discusses the roles of self-recovering vegetation in development and construction projects and probes into the effects of self-recovering vegetation on the evaluation indexes of soil and water conservation.The results obtained indicate that if surface soil is well preserved,surface vegetation self-re- covering accounting for nearly one-fourths afforestation area can be gained in the abundant rainfall area.De- pending on self-recovering vegetation on disturbed ground in the abundant rainfall area,primary vegetation coverage degree can reach more than 50% within 2 years.Owing to serious vegetation damage,shrubbery vegetation can not be completely recovered within 2 years and self-recovering vegetation on disturbed ground is generally the herbage communities.

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