Comprehensive Evaluation and Improvement Countermeasures of Cultivated Land Quality in Gaoyou City
In order to comprehensively understand the current status of cultivated land quality in Gaoyou City and improve the level of cultivated land quality,the investigation evaluation,grading and systematic analysis of cultivated land quality in Gaoyou were conducted.The results show that the weighted average grade of cultivated land quality in Gaoyou is 2.60,and the overall level is high,The second-class area is the largest,which is 36 563.60 hm2.In the three types of cultivated land,the quality grade of cultivated land is paddy field＞irrigated land＞dry land,and the average contents of organic matter,total nitrogen,available phosphorus and available potassium in the whole city are 36.13 g/kg,2.08 g/kg,26.15 mg/kg and 146.73 mg/kg,all of which are in high level.
Cultivated land qualityEvaluationCurrent statusImprovement
国家科技期刊平台
NSTL
万方数据
维普
