首页 | 官方网站   微博 | 高级检索  
     

苏北海涂围垦区土壤质量模糊综合评价
引用本文:姚荣江,杨劲松,陈小兵,余世鹏,李晓明.苏北海涂围垦区土壤质量模糊综合评价[J].中国农业科学,2009,42(6):2019-2027.
作者姓名:姚荣江  杨劲松  陈小兵  余世鹏  李晓明
作者单位:1. 中国科学院南京土壤研究所,南京,210008
2. 中国科学院烟台海岸带可持续发展研究所,山东烟台,264003
基金项目:国家高技术研究发展计划(863计划),国家科技支撑计划,中国科学院南京土壤研究所创新领域前沿项目,中国科学院知识创新工程重要方向项目 
摘    要: 【目的】系统掌握苏北海涂围垦区的土壤质量现状及其空间分布特征,获取实现土壤培肥抑盐与质量提升的调控措施。【方法】采用模糊综合评价与GIS相结合的方法,对土壤质量进行模糊综合评价与分级,获取区域土壤质量综合评价分级图。【结果】研究区土壤质量状况总体较低,土壤有机质和氮素亏缺较为严重,尤其是碱解氮;除容重为弱变异强度外,其余各评价指标均呈中等变异强度;有机质是重要的土壤质量评价因子,土壤盐分和地下水矿化度是土壤质量的主要限制因子。研究区不同部位土壤质量状况具有明显差异性,其空间分布规律与有机质较为相似,与土壤盐分相反,总体上棉花种植区的土壤质量状况要优于水稻种植区;研究区土壤质量中等的区域面积最大,其次是低质量区,高质量区面积最小。【结论】土壤质量分级图可用于研究区中低产地改造、盐碱地综合治理和合理施肥,土壤质量较低区域应完善田间排灌设施,质量中等区域宜加强农业生物改良。

关 键 词:苏北  围垦区  土壤质量  模糊综合评价
收稿时间:2008-7-17

Fuzzy Synthetic Evaluation of Soil Quality in Coastal Reclamation Region of North Jiangsu Province
YAO Rong-jiang,YANG Jing-song,CHEN Xiao-bing,YU Shi-peng,LI Xiao-ming.Fuzzy Synthetic Evaluation of Soil Quality in Coastal Reclamation Region of North Jiangsu Province[J].Scientia Agricultura Sinica,2009,42(6):2019-2027.
Authors:YAO Rong-jiang  YANG Jing-song  CHEN Xiao-bing  YU Shi-peng  LI Xiao-ming
Affiliation:(Institute of Soil Science, Chinese Academy of Sciences)
Abstract:【Objective】 This study was to systematically comprehend soil quality status and its spatial pattern in coastal saline reclamation region of north Jiangsu Province, and acquire management measures to improve soil fertility and quality and restrain soil salinity. 【Method】 With the application of fuzzy synthetic evaluation method and GIS technology, fuzzy synthetic evaluation and classification of regional soil quality was conducted, and spatial patterns of synthetic evaluation results of regional soil quality was obtained to provide a theoretical reference to scientific amelioration and field management of moderate-and-low-yield farmlands. 【Result】 The results indicated that soil quality status across the study area was generally low, soil organic matter (SOM) and N nutrient was in severe deficiency, and it is particularly the case for available N. Soil bulk density showed week variation and other evaluation indices all exhibited moderate variation. SOM was the most important evaluation factor of soil quality, while soil salinity and groundwater mineralization were limiting factors of soil quality. Soil quality status differed significantly at different parts of the study area, and the spatial pattern of soil quality was similar to that of SOM, while it was opposite to that of salinity. Soil quality in the cotton-growing field was superior to that in the rice-growing field generally. The area of moderate soil quality was the most in the study area, followed by that of low soil quality, and the area of high soil quality was the least. 【Conclusion】 The soil quality map can be used for the improvement of moderate-and-low-yield farmlands, comprehensive treatment and rational fertilization of saline-alkali soil in our study area. The field irrigation and drainage installations should be improved in the area of low soil quality, while agro-biological treatments should be employed in the area of moderate soil quality.
Keywords:north Jiangsu Province  reclamation region  soil quality  fuzzy synthetic evaluation
本文献已被 万方数据 等数据库收录!
点击此处可从《中国农业科学》浏览原始摘要信息
点击此处可从《中国农业科学》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司    京ICP备09084417号-23

京公网安备 11010802026262号