为了研究经济作物对土壤根际有机碳的影响，以2种不同类型的楤木为对象研究

为了研究经济作物对土壤根际有机碳的影响，以2种不同类型的楤木为对象研究了其对根际土壤碳的影响。研究结果为：(1)楤木的类型影响到根际土壤有机碳含量，与对照相比小叶型楤木根际土壤有机碳增加最高，其次是大叶型楤木；（2）楤木类型影响到根际土壤脲酶、蔗糖酶和过氧化物酶活性，这几种酶活性在小叶型楤木根际高于大叶型楤木；（3）小叶楤木根际土壤微生物呼吸最高，其次是大叶楤木，对照最低。这表明，在今后品种选育中可以把根际土壤碳增收作为参考指标，为低碳农业的发展提供科学依据。

为了研究经济作物对土壤根际有机碳的影响，以2种不同类型的楤木为对象研究了其对根际土壤碳的影响。 研究结果为：(1)楤木的类型影响到根际土壤有机碳含量，与对照相比小叶型楤木根际土壤有机碳增加最高，其次是大叶型楤木；（2）楤木类型影响到根际土壤脲酶、蔗糖酶和过氧化物酶活性，这几种酶活性在小叶型楤木根际高于大叶型楤木 ；（3）小叶楤木根际土壤微生物呼吸最高，其次是大叶楤木，对照最低。 这表明，在今后品种选育中可以把根际土壤碳增收作为参考指标，为低碳农业的发展提供科学依据。

In order to study the effect of cash crops on Soil Rhizosphere organic carbon, two different types of Aralia were used to study its effect on Soil Rhizosphere carbon. The results are as follows: (1) the type of Aralia affects the content of soil organic carbon in the rhizosphere, and the increase of soil organic carbon in the rhizosphere is the highest compared with that in the control group, followed by that in the large leaf type; (2) the type of Aralia affects the activities of urease, sucrase and peroxidase in the rhizosphere, which are higher in the small leaf type than in the large leaf type; (3) the activity of Aralia in the rhizosphere is higher in the small leaf type Soil microorganism respiration was the highest, followed by Aralia elata, and the control was the lowest. This indicated that the increase of soil carbon income in rhizosphere could be taken as a reference index in the future breeding, which could provide a scientific basis for the development of low-carbon agriculture.<br>