猪场废水灌溉对潮土酶活性的影响  

Effects of Swine Wastewater Irrigation on the Enzyme Activities in Fluvo-aquic Soil

作　　者：王风[1] 黄治平[1] 张克强[1] 杨军[1] 张金凤[1] 李晓光[1] 于丹[1] 

机构地区：[1]农业部环境保护科研监测所资源再生研究室,天津300191

出　　处：《农业环境科学学报》2009年第8期1602-1606,共5页Journal of Agro-Environment Science

基　　金："十一五"国家科技支撑项目(2006BAD17B02);中央级公益性科研院所基本科研业务专项资助

摘　　要：通过天津杨柳青镇田间小区试验,研究了猪场废水原水、厌氧出水和仿生态塘与地下水稀释(1∶5)灌溉以及厌氧出水高、中、低定额灌溉对潮土0～20cm和20～40cm土层的土壤脲酶、转化酶和过氧化氢酶活性及土壤有机碳和全氮的影响。结果表明,猪场废水灌溉显著增加土壤有机碳和全氮含量;中量厌氧水灌溉增强土壤脲酶、转化酶和过氧化氢酶活性,过高或过低量厌氧水灌溉降低土壤酶活性;原水、厌氧出水和仿生态塘水稀释灌溉对土壤酶活性也有显著影响;与对照(正常施肥和灌溉)相比,仿生态塘水稀释灌溉促进土壤脲酶活性;所有的稀释灌溉处理对土壤转化酶和过氧化氢酶活性均有抑制趋势,但其中仿生态塘水稀释灌溉处理的降幅较小。建议适宜的猪场养殖废水厌氧出水灌水定额为500m·3hm-2,适宜的稀释灌溉处理为仿生态塘水与地下水1∶5的稀释比例。This study is to examine the effects of swine wastewater irrigation on the activity of urease, invertase and catalase as well as soil organic carbon （SOC） and nitrogen contents. Soil samples were collected at the depths of 0-20 cm and 20-40 cm of a fluvo-aquic soil on the basis of the field experiment in the county of Yangliuqing in Tianjin. Irrigation with swine wastewater significantly increased SOC and nitrogen content. The activity of urease, invertase and eatalase increased by irrigating with middle quota of anaerobic water while sharply declined with too high or too low quota of anaerobic water irrigation. In addition, the different dilution wastewater of origin, anaerobic and eco-pond water also affected soil enzyme activities：the urease activity increased by irrigating with dilution eco-pond water compared with the control. The invertase and catalase activity were inhibited depending on the three dilution wastewater, but were slightly influenced by eco-pond water irrigation. It was suggested that the appropriate irrigation quota of anaerobic wastewater should be confined to 500 m^3. hm^-2, appropriate dilution wastewater for irrigation was eco-pond water.

关 键 词：猪场废水 灌溉 酶活性 厌氧水 

分 类 号：X703.1[环境科学与工程—环境工程]