CAJ | 학술논문

　　旨在研究长期施肥对不同有机质含量农田黑土酶活性及土壤肥力的影响。本研究利用中国科学院海伦生态实验站黑土空间移位长期定位试验5种不同有机质含量的农田黑土，采用常规分析法测定并分析了土壤脲酶、磷酸酶、蛋白酶、蔗糖酶的活性及土壤有机质、全氮、全磷、碱解氮、有效磷含量。结果表明，化肥的施用可不同程度提高农田黑土的养分含量及土壤酶的活性，提高顺序是北安(SOM11)>嫩江(SOM6)>海伦(SOM5)>德惠(SOM3)>梨树(SOM1.7)，北安黑土与其他4种土壤之间达到了差异显著水平(P<0.05)。相关分析结果显示：土壤脲酶、磷酸酶、蛋白酶、蔗糖酶与土壤有机质、全氮、全磷、碱解氮显著相关，土壤脲酶、蔗糖酶可以反映不同有机质含量农田黑土长期施肥后土壤质量变化趋势。
　　지재연구장기시비대불동유궤질함량농전흑토매활성급토양비력적영향。본연구이용중국과학원해륜생태실험참흑토공간이위장기정위시험5충불동유궤질함량적농전흑토，채용상규분석법측정병분석료토양뇨매、린산매、단백매、자당매적활성급토양유궤질、전담、전린、감해담、유효린함량。결과표명，화비적시용가불동정도제고농전흑토적양분함량급토양매적활성，제고순서시북안(SOM11)>눈강(SOM6)>해륜(SOM5)>덕혜(SOM3)>리수(SOM1.7)，북안흑토여기타4충토양지간체도료차이현저수평(P<0.05)。상관분석결과현시：토양뇨매、린산매、단백매、자당매여토양유궤질、전담、전린、감해담현저상관，토양뇨매、자당매가이반영불동유궤질함량농전흑토장기시비후토양질량변화추세。
The research investigated the effects of long-term fertilization on soil enzyme activities and soil fertility for the black farmlands under different soil organic matter levels. This study used the conventional analysis methods to test and analyze the activity of soil urease, phosphatase, invertase, protease and the contents of soil organic matter, total nitrogen, total phosphorus, available nitrogen, available phosphorus in five black farmlands soil with different soil matter content of soil spatial shift long-term experiments in National Observation Station of Hailun Agro-ecology System. The results showed that, the application of chemical fertilizers could increase the nutrient content in different degree and soil enzyme activities of black soil. The order of the raise was Bei'an (SOM11)>Nenjiang (SOM6)>Helen (SOM5)>Dehui (SOM3) > Lishu (SOM1.7). Compared to other four soils, Bei'an (SOM11) reached significant difference level(P<0.05). The results of correlation analysis showed that soil urease, phosphatase, protease, invertase and soil organic matter, total nitrogen, total phosphorus, available nitrogen were significantly related, soil urease, invertase could reflect the quality change trend of the soil under different organic matter levels after long-term fertilization.