CAJ | 학술논문

取韶关矿区典型Cd污染菜地土壤,采用盆栽试验研究不同田间持水量( 40%和80%)对菜心和蕹菜产量及Cd吸收积累的影响,结果表明:提高土壤田间持水量能显著提高土壤pH值和蔬菜产量,降低蔬菜中的Cd含量.在2 种Cd水平(土壤Cd含量4. 00 mg/kg、8. 00 mg/kg )下土壤田间持水量80%的处理比土壤田间持水量40%的处理,菜心分别增产60. 0%和101. 8%,菜体Cd含量分别降低23. 0%和168. 4%;蕹菜分别增产148. 0%和137. 8%,菜体Cd含量分别降低136. 4%和214. 8%.在2种Cd水平下,蔬菜的Cd含量均与土壤pH值呈极显著负相关.
취소관광구전형Cd오염채지토양,채용분재시험연구불동전간지수량( 40%화80%)대채심화옹채산량급Cd흡수적루적영향,결과표명:제고토양전간지수량능현저제고토양pH치화소채산량,강저소채중적Cd함량.재2 충Cd수평(토양Cd함량4. 00 mg/kg、8. 00 mg/kg )하토양전간지수량80%적처리비토양전간지수량40%적처리,채심분별증산60. 0%화101. 8%,채체Cd함량분별강저23. 0%화168. 4%;옹채분별증산148. 0%화137. 8%,채체Cd함량분별강저136. 4%화214. 8%.재2충Cd수평하,소채적Cd함량균여토양pH치정겁현저부상관.
Some typical Cd-polluted soil in Vegetable cultiVated land of Shaoguan mining area was taken and used for pot trial to study the effects of different field capacities(40% and 80%)on the yield and Cd absorption and accumulation in flower-ing Chinese cabbage( Brassica rapa Var. chinensis)and water spinach. The results showed that increasing the field capacity of soil could increase pH Value of soil and Vegetable yield,and decrease the Cd content in Vegetables. And increasing the field capacity under 2 Cd leVels,the yield of flowering chinese cabbage increased by 60. 0% and 101. 8%,and the Cd con-tent in its body decreased by 23. 0% and 168. 4% respectiVely;the yield of water spinach increased by 148. 0% and 137. 8% and the Cd content in its body decreased by 136. 4% and214. 8% respectiVely. MoreoVer,the Cd contents in two kinds of Vegetables showed Very significantly negatiVe correlation to the soil pH Value under 2 Cd leVels.