CAJ | 학술논문

通过对南方红壤山边沟果园套种日本草适应性的研究，发现新开山边沟果园4月套种日本草扦插苗当年的6月分萌数可达6条，8月可达16条，第二年的7月能达11.4条；当年6月干草量可达5308 kg/ hm2，8月达8523 kg/ hm2，比套种百喜草分别低2.61%、13.78%，种植第二年7月达17333 kg/ hm2，比百喜草增加8.33%；当年6月草层厚度可达25 cm，比百喜草低19.35%，当年8月达49 cm，种植第二年7月达46 cm，分别比百喜草高6.52%、2.2%；当年6月覆盖率可达55%，比百喜草低15.38%，当年8月达100%，比百喜草高2.04%，种植第二年7月与百喜草一样达100%；套种日本草当年土壤流失率比裸地减少79.41%，同时能有效改善果园的生态环境.
통과대남방홍양산변구과완투충일본초괄응성적연구，발현신개산변구과완4월투충일본초천삽묘당년적6월분맹수가체6조，8월가체16조，제이년적7월능체11.4조；당년6월간초량가체5308 kg/ hm2，8월체8523 kg/ hm2，비투충백희초분별저2.61%、13.78%，충식제이년7월체17333 kg/ hm2，비백희초증가8.33%；당년6월초층후도가체25 cm，비백희초저19.35%，당년8월체49 cm，충식제이년7월체46 cm，분별비백희초고6.52%、2.2%；당년6월복개솔가체55%，비백희초저15.38%，당년8월체100%，비백희초고2.04%，충식제이년7월여백희초일양체100%；투충일본초당년토양류실솔비라지감소79.41%，동시능유효개선과완적생태배경.
This paper carries out a study on the adaptability of Hedyotis sp. at hillside ditches orchard in red soil region of South China. In this study,Hedyotis sp. was planted under the new hillside ditches or-chards. In the first year,6 branches were found in June and 16 in August,and the number reached 11. 4 in the second year. The dry mass of first year was about 5 308 kg / hm2 in June and 8 523 kg / hm2 in Au-gust,which is lower than Paspalum notatum Flugga by 2. 61% and 13. 78% respectively. However,the dry mass was 17 333 kg / hm2 in the second year,which is 8. 33% higher than Paspalum notatum Flugga. The height and coverage were 25 cm and 55% in June,49 cm and 100% in August in the first year, which showed a similar trend with dry mass. Compared with bare land,planting Hedyotis sp. reduced soil erosion by 79. 41% and improved the ecological environment of the orchard.