CAJ | 학술논문

为探索吉林省西部退化草地的治理修复技术,复壮退化草地,通过田间试验的方法,研究了不同措施对草原土壤理化性质的改良效果.结果表明,不同改良措施均对土壤理化性质的改善有较好的效果,其中施用秸秆处理对提高土壤水稳性团聚体含量效果最好,比对照提高了34.5%,土壤团聚体破坏率比对照降低了22.7%;各处理对降低土壤容重均有较好效果,围栏内土壤的碱化度比不围栏降低了31.7%,其它各改良措施降低碱化度的作用更明显;草原土壤磷、钾肥较为缺乏,而且单纯的施用化肥效果并不好,需要配合有机肥的施用才能有效提高土壤肥力.
위탐색길림성서부퇴화초지적치리수복기술,복장퇴화초지,통과전간시험적방법,연구료불동조시대초원토양이화성질적개량효과.결과표명,불동개량조시균대토양이화성질적개선유교호적효과,기중시용갈간처리대제고토양수은성단취체함량효과최호,비대조제고료34.5%,토양단취체파배솔비대조강저료22.7%;각처리대강저토양용중균유교호효과,위란내토양적감화도비불위란강저료31.7%,기타각개량조시강저감화도적작용경명현;초원토양린、갑비교위결핍,이차단순적시용화비효과병불호,수요배합유궤비적시용재능유효제고토양비력.
In order to search the harness and renew technique for degraded grassland of western Jilin province soil and rejuvenation the degraded grassland,field experiment was carried to search the effects of different improve measures to the soil physical and chemical character of grassland.The results indicated that each kind of technique is effective to the improve of grassland soil,applying cornstalk into soil had the best effect on increasing the quantity of water steady accumulation.increased 34.5%compare to CK.soil accumulation destroy rate decreased 22.7%.Each kind of technique is effective to decrease the soil bulk density;enclosure reduced 3 1.7%of ESP.The grassland soil is short of phosphorus and potassium,applying organic fertilizer accompany with chemical fertilizer is more effective than applying chemical fertilizer.