THE IMPACT OF UREA AMENDMENTS ON ATMOSPHERIC GAS REGULATION SERVICES IN RICE PADDY ECOSYSTEMS AND THEIR VALUATION
XIAO Yu, XIE Gao-Di, LU Chun-Xia, DING Xian-Zhong, LÜ Yao
Chin J Plant Ecol . 2005, (4): 577 -583 .  DOI: 10.17521/cjpe.2005.0077