长汀红壤侵蚀核心区土壤侵蚀动态与治理效果  

Erosion Dynamics and Control Effects in Red Soil Erosion Core Area of Changting County of Fujian Province

作　　者：游惠明[1,2] 陈杰[1,2] 薛梅[3] 李建民[1,2] 黄石德[1,2] 

机构地区：[1]福建省林业科学研究院,福建福州350012 [2]福建省森林培育与林产品加工利用重点实验室,福建福州350012 [3]福建省空间信息工程研究中心,福建福州350003

出　　处：《贵州农业科学》2016年第12期137-141,共5页Guizhou Agricultural Sciences

基　　金：国家林业公益性行业科研项目"长汀红壤侵蚀区生态经济型植被恢复技术研究"(201304303)

摘　　要：为探明长汀土壤侵蚀核心区的治理效果,为长汀未来水保政策的制定及生态环境的保护提供参考依据,结合RS、GIS技术,利用RUSLE模型,对侵蚀核心区的土壤侵蚀状况进行定量评价,并结合侵蚀治理措施探讨其治理效果。结果表明:2013年土壤侵蚀总面积较1999年降低49.02%;侵蚀以轻度为主,轻度侵蚀区面积占76.91%;1988-2013年,侵蚀治理效果呈由强度侵蚀区向轻度侵蚀区推进的趋势,2007-2013年,除中度侵蚀等级外,其他各侵蚀等级的面积比例变化<1%;长汀土壤侵蚀治理效果显著,侵蚀空间分布格局逐渐趋于稳定,侵蚀治理转为巩固措施,出现整体好转的同时仍存在局部恶化,未来的侵蚀治理应坚持预防为主,防治结合。To explore the control effects in red soil erosion core area of Changting County of Fujian Province, thus to provide references for water conservation policy making and ecological environment protection in the future. The Revised Universal Soil Loss Equation （RUSLE）, supported by remote sensing and geographical information system techniques, was used to quantitatively estimate and analyze the soil erosion in red soil erosion core area of Changting County in Fujian Province. Control effectiveness was analyzed with control measures and erosion dynamics. Results. Erosion area in 2013 was reduced by 49.02% since 1999. The whole area with mild erosion primarily, while the mild erosion area accounted for 76.91% in 2013. Good control effects was get from strong to mild soil erosion area during 1988-2013. In addition to moderate erosion level, the area ratio change of each other erosion level （ 1%, it suggested that soil erosion control in Changting County has achieved remarkable improvement, erosion pattern in Changting County had become stabilized. The erosion control practice turned to consolidation measures, the various erosion presented the change for the better tendency while localized deterioration still existed. So Changting County should adhere to erosion prevention first, combining prevention with control in the future.

关 键 词：土壤侵蚀 侵蚀强度 时空变化 RUSLE模型 长汀 福建 

分 类 号：S157.1[农业科学—土壤学]