Warning: file_put_contents(): Only 0 of 5054 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 亚洲精品国产专区在线,思思久久精品无码
N and P are raised from flowing dune to fixed dune, and K is not change great, the PH in mostly profile and arrangement is slight alkalinity ; 土壤氮素和磷從流動沙丘到固定沙丘含量有所上升,鉀素則變化不大,大部分剖面和層次土壤pH呈微堿性;