摘要
应用沟壑纵剖面信息熵、主成份分析、聚类分析等方法 ,将丘陵半干旱区沟壑分为初期“V”型发展沟 ,中期“U”发展沟、后期扩展“”型稳定沟三大类。研究建立了乔灌草混交综合防护型 ;经济林果立体型 ;水井—养殖—林果型 ;窖—棚—果 (林 )型 ;沟道大棚一葡萄一食用菌三位一体型等不同类型沟壑治理开发模式 ,可为同类地区山地沟壑资源高效治理开发 。
According to the investgating and surveying data of the gullies,Using the methods of the information entropy of the gully vertical profile,the main-element analysis and the cluster analysis,thegullies in hilly semi-arid area of China were divided into three types,i.e.the original period'V'form developing gully,the middle period'U'form developing gully and the late period'[FK(W+1?6mm][TPP235,+3mm?5mm]'form stable gully.Meanwhile,the different harness and development patterns for the gullies were systematically studied.They are ①the comprehensive protection pattern of planting arbor mixed wyth shrub and grass,②the three-dimensional distrbution pattern of various economic forest species,③the pattern with water well(or dam),livestock breediyng,forest and orchard in combination,④the pattern with water depot,buliding greenhouse and planting fruit trees in combination,⑤the pattern with building gully greenhluse,planting grape and edible fungi in combination.This results can provide scientific basis and methods for the harness and development of the gullies and the sustainable development of agricultural economy in the similar areas.
出处
《山地学报》
CSCD
2002年第2期232-235,共4页
Mountain Research
基金
水利部"国家水土保持重点治理区大凌河流域治理工程"( 1992~ 2 0 0 2 )项目的一部分
