Changes of chlorophyll value and plant height in leaves of different soil materials

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Shi, Lei^1^2^3

Shaanxi Provincial Land Engineering Construction Group Co. Ltd., Institute of Land Engineering and Technology, Xi'an

710075, China^1

Key Laboratory of Degraded and Unused Land Consolidation Engineering, Ministry of Land and Resources, Xi'an

710075, China^2

Shanxi Provincial Land Engineering Construction Group Co. Ltd, Xi'an

710075, China^3

关键词: Average values;    Chlorophyll contents;    Clay mixtures;    Content of chlorophyll;    Different soils;    Material profiles;    Monitoring periods;    Plant height;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/5/052010/pdf
DOI  :  10.1088/1755-1315/300/5/052010

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The chlorophyll content in leaves can reflect the photosynthetic function of plant leaves. In this study, the chlorophyll content of Arctium lappa L. with different material profiles was monitored by chlorophyll analyzer. The overall trend of chlorophyll was from low to high. After a peak, the chlorophyll content gradually decreased and then tended to be flat. This indicated that Arctium lappa L. grew from early stage of development to maturity and then to decline. The results showed that the SPAD value of chlorophyll in shale + clay and perlite + clay potted plants remained between 8 and 25 from the beginning to maturity. The fluctuation of chlorophyll value was small in the first 20 weeks of monitoring, and increased rapidly in the following 4 weeks. Vegetable carbon and clay fluctuated obviously in the 9th week, and the chlorophyll content was stable and high in the 13th to 16th week. During the whole monitoring period, the content of chlorophyll SPAD in the leaves of all plants did not fluctuate much in the first six weeks, and reached the highest average value in 13 to 16 weeks. The chlorophyll SPAD value of the potted plants reconstructed by the mixture of vegetable carbon and clay remained between 38 and 43, the chlorophyll SPAD value of the potted plants reconstructed by the mixture of vermiculite and clay remained between 20 and 25, and the potted plants reconstructed by the mixture of perlite and clay. The SPAD values of chlorophyll in shale and clay mixtures remained between 8 and 9, the SPAD values of chlorophyll in shale and clay mixtures remained between 9 and 10, and the SPAD values of chlorophyll in whole clay mixtures remained between 21 and 24.