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作 者:王春雪[1,2] 岳学文 李坤[1,2] 李义林 潘志贤 方海东 李建查[1,2] 史亮涛 WANG Chun-xue;YUE Xue-wen;LI Kun;LI Yi-lin;PAN Zhi-xian;FANG Hai-dong;LI Jian-cha;SHI Liang-tao(Institute of Tropical Eco-Agricultural Sciences,Yunnan Academy of Agricultural Sciences,Yuanmou 651300,China;Yuanmou Dry-Hot Valley Botanical Garden,Yuanmou 651300,China)
机构地区:[1]云南省农业科学院热区生态农业研究所,云南元谋651300 [2]元谋干热河谷植物园,云南元谋651300
出 处:《江西农业学报》2021年第12期104-110,共7页Acta Agriculturae Jiangxi
基 金:云南典型生态功能区生态保护和修复技术研究与应用示范(2019BC001)。
摘 要:为了了解杞麓湖流域农田、水体的营养状况,于流域内湖泊周边蔬菜地采集耕层土壤样品以及相应位置的水体样本,测定了土壤养分状况和水体富营养化参数,并对各个参数间的相关性进行了分析。结果表明:杞麓湖流域的土壤TN_(S)、TP_(S)、SOM含量极丰富,均值均处于1级丰富度;但就区域分布而言,杞麓湖的东部和北部农田养分含量较低,而西部和南部的养分含量较高;杞麓湖水质参数TN W含量、TP_(W)含量和COD的均值都达到了地表水劣Ⅴ类水平;土壤的SOM含量与TN S含量呈显著正相关,水体中的TN_(W)含量与TP_(W)含量呈显著正相关关系。根据杞麓湖流域的土壤及水体养分特征,提出了相应的种植及截污对策。In order to master the nutrition status of farmland and water in Qilu Lake watershed,soil samples of topsoil and water samples corresponding to their locations were collected from vegetable fields around lakes in the basin.Soil nutrient parameters and water eutrophication parameters were measured,and the correlation among each parameter was analyzed.The results showed that the contents of TN_(S),TP_(S )and SOM in the soil of Qilu Lake basin were very rich,and the mean value of TN_(S),TP_(S) and SOM in the soil of Qilu Lake basin was at level 1.However,in terms of region,the nutrient content of farmland in the east and north of Qilu Lake was lower,while the nutrient content in the west and south of Qilu Lake was higher.The water quality parameters TN_(W),TP_(W) and COD of Qilu Lake all reached the level of surface water inferior to Grade V water.Correlation analysis showed that SOM in soil was significantly positively correlated with TN_(S),and TN_(W) in water were significantly positively correlated with TP W.According to the characteristics of soil and water in Qilu Lake basin,the corresponding planting and pollution interception strategies were put forward.
分 类 号:X52[环境科学与工程—环境工程]
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