本文選題：煙氣脫硫石膏 + 濱海農(nóng)耕地�。� 參考：《生態(tài)學(xué)報》2017年09期

【摘要】：為探明不同煙氣脫硫石膏施用量對濱海農(nóng)耕土壤中的全磷、有效磷、無機磷組分等的影響,通過田間試驗的方式,分別在試驗區(qū)土壤中施加0t/hm~2、15t/hm~2、30t/hm~2、45t/hm~2煙氣脫硫石膏。研究結(jié)果表明:與對照組相比,各處理組的土壤全磷含量無顯著差異,而土壤中的有效磷和滲濾液中的可溶性磷含量則隨著煙氣脫硫石膏施入量的增加而降低;施入煙氣脫硫石膏后農(nóng)耕土壤中無機磷含量顯著增加,其中又以磷酸鈣鹽含量的增加為主,磷酸鈣鹽中的Ca2-P、Ca_8-P和Ca_10-P含量分別增加了30.8%—68.9%、35.2%—66.3%和7.3%—17.8%。煙氣脫硫石膏的施用促進了植物的生長發(fā)育,有效磷的降低和無機磷組分中磷酸鈣鹽的增加并未影響到植物對磷素的吸收。因此,煙氣脫硫石膏能有效地固定濱海農(nóng)耕土壤中的溶解態(tài)磷,控制土壤過量磷素向水體遷移,降低附近水體富營養(yǎng)化發(fā)生的機率,保障區(qū)域水體生態(tài)系統(tǒng)環(huán)境安全。
[Abstract]:In order to find out the effect of different amount of flue gas desulphurization gypsum on total phosphorus, available phosphorus and inorganic phosphorus components in coastal farming soil, 0 t / hm ~ 215t / hm ~ (-1) ~ 230t / hm ~ (2 +) ~ (2) ~ (45) t / hm ~ (2) gypsum was applied to the soil of the experimental area by field experiment. The results showed that there was no significant difference in total phosphorus content between the treatments and the control group, but the available phosphorus in the soil and the soluble phosphorus in the leachate decreased with the increase of the amount of gypsum applied in flue gas desulphurization. The content of inorganic phosphorus in cultivated soil increased significantly after applying gypsum from flue gas desulphurization, and the content of calcium phosphate was mainly increased. The contents of Ca _ 2-P _ (鈪，

本文編號：1787571