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assessmentofhumanactivitiesonsoilconservationvalueinhillyandgullyregionofloessplateauacasestudyofzhifanggouwatershed
ZHANG Caixia1; XIE Gaodi1; YANG Qinke2; LI Shimei1
2008
Source Publication自然资源学报
ISSN1000-3037
Volume023Issue:006Pages:1035
Abstract以受人类活动强烈干扰的黄土高原典型丘陵沟壑区安塞县纸坊沟为例,以该区土壤侵蚀最严重的1958年为参照年,主要运用替代工程法、影子价格法和机会成本法等方法,分析了1938~2000年该流域土壤保持服务功能价值的动态变化过程,并通过对流域综合治理与退耕还林草投入成本价值的对比核算,初步评价了流域水土保持治理的效益。研究表明,从1938~1978年,由于人类不合理的活动使大面积植被遭受破坏,导致流域土壤保持功能显著降低,年土壤保持价值减少了1.01×10^8元。随小流域综合治理和退耕还林(草)政策的实施,土壤保持功能及其价值逐年增加,1978~2000年土壤保持价值增加了0.77×10^8元。除去流域治理和退耕还林草投入总成本1.56×10^6元,1975~2000年年均净获土壤保持价值量6414.4×10^4元,表明流域综合治理是卓有成效的。但与植被破坏前的1938年相比,2000年的土壤保持服务价值与之仍有一定差距,土壤保持服务价值为1938年的78.5%,因此,流域综合治理仍然任重而道远。
Language英语
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/81018
Collection中国科学院地理科学与资源研究所
Affiliation1.中国科学院地理科学与资源研究所
2.中国科学院水土保持研究所
First Author Affilication中国科学院地理科学与资源研究所
Recommended Citation
GB/T 7714
ZHANG Caixia,XIE Gaodi,YANG Qinke,et al. assessmentofhumanactivitiesonsoilconservationvalueinhillyandgullyregionofloessplateauacasestudyofzhifanggouwatershed[J]. 自然资源学报,2008,023(006):1035.
APA ZHANG Caixia,XIE Gaodi,YANG Qinke,&LI Shimei.(2008).assessmentofhumanactivitiesonsoilconservationvalueinhillyandgullyregionofloessplateauacasestudyofzhifanggouwatershed.自然资源学报,023(006),1035.
MLA ZHANG Caixia,et al."assessmentofhumanactivitiesonsoilconservationvalueinhillyandgullyregionofloessplateauacasestudyofzhifanggouwatershed".自然资源学报 023.006(2008):1035.
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