Authors: Yuanchun Yu Jingyu Yang Shucai Zeng Daoming Wu Douglass F Jacobs Joshua L Sloan
Publish Date: 2016/06/09
Volume: 17, Issue: 9, Pages: 2230-2238
Abstract
Chinese fir Cunninghamia lanceolata Lamb Hook is an important native tree species in China Consecutive cropping traditionally occurs in Chinese fir plantations CFPs but this practice has resulted in productivity declines in subsequent rotations This study was designed to better understand the change of soil properties in the continuous cropping CFPsIn the upper 0–20 cm soil layer soil pH decreased while SOM increased beneath mature CFPs with consecutive rotations Total nitrogen TN available potassium and available phosphorus contents in the upper soil layers did not differ significantly with consecutive rotations Soil pH in RS was significantly lower than in NRS under mature plantations of the third rotation Soil organic matter TN and available nitrogen did not differ between RS and NRS Available phosphorus in RS was consistently lower than in NRS and was highly deficient in the third rotationThis paper was financially supported by the National Natural Science Foundation of China No 31270664 No 31270675 and No 30271069 National Key Research and Development Program of China No 2016YFNC030025 and Priority Academic Program Development of Jiangsu Higher Education Institutions PAPD
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