赣南水土保持生态建设土壤改良成效分析  

Analysis on benefit of soil improvement in soil and water conservation and ecological construction in south of Jiangxi Province

作　　者：宋月君[1,2] 杨洁[1,2] 汪邦稳[1,2] 

机构地区：[1]江西省水土保持科学研究所,江西南昌330029 [2]江西省土壤侵蚀与防治重点实验室,江西南昌330029

出　　处：《水资源与水工程学报》2013年第1期104-108,共5页Journal of Water Resources and Water Engineering

基　　金：江西水利重大科技项目(200908);水利部科技推广计划项目(TG1141)

摘　　要：为了更好地定量评价近30年来赣南水土保持工作所取得的生态成效,通过对赣南地区88条典型小流域建立调查样方,进行土壤样品采集和化学实验分析得到:①经过水土保持治理后样方内的土壤的容重有所降低,土壤的熟化程度进一步加强,全磷、速效磷、全氮、碱解氮、有机质含量明显提高,土壤理化性质得到了显著改良;②各项土壤指标的改良程度与治理时间存在正相关,治理时间越长,其土壤的改良程度越好;③竹节水平沟在水土保持治理过程中,保土、保肥作用显著,是一种值得推广的水土保持治理技术。In order to get the better quantitative evaluation of ecological effect in south of Jiangxi Province during nearly 30 years,the paper established survey samples,collected the soil sample and analysed them in the 88 typical small watersheds in the south of Jiangxi Province,and then got the following conculsion：①The soil bulk density decreases in polts after the soil and water conservation management,total phosphorus,available phosphorus,total nitrogen,alkali-hydro nitrogen,organic matter content have obviously increased,the physical and chemical properties of soil have been significantly improved;②The index of the degree of soil improvement has positive correlation with the time of the soil and water conservation management,the longer the management,the better the improvement;③The effect of soil conservation,protecting fertilizer at contour Zhujie level groove is significant and is worthy of popularizing in soil and water conservation management.

关 键 词：水土保持 生态建设 土壤改良 成效分析 赣南 

分 类 号：S278[农业科学—农业水土工程]