CAJ | 학술논문

以四川省德阳市旌阳区低效柏木林改造8年后的6种模式(栎竹模式、撑绿杂交竹模式、柏竹桤模式、柏栎模式、柏竹模式和柏木纯林)为对象研究土壤抗蚀性。结果表明：1)不同改造模式对土壤物理性质、有机质、细根含量及水稳性团聚体都有显著性的影响(P＜0.05)，其中土壤物理性质以柏竹桤最好，撑绿杂交竹最差；土壤有机质含量依次为柏竹桤＞柏竹＞柏栎＞柏木＞栎竹＞撑绿杂交竹；细根含量则为撑绿杂交竹＞柏竹桤＞柏竹＞柏木＞柏栎＞栎竹；水稳性团聚体柏竹桤＞柏栎＞柏竹＞柏木＞撑绿杂交竹＞栎竹。2)对14个指标的主成分分析结果表明：不同模式下土壤抗蚀性的相对大小与水稳性团聚体一致，各指标中水稳性团聚体对抗蚀性贡献率最大(58.93%)。3)综合比较，柏竹桤模式在柏木人工林改造后生态系统服务功能显著提升，适宜在该地区推广。适宜的改造模式能够提高林地土壤的抗蚀性，减少水土流失，而不当的模式则会加剧水土流失，因此柏木低效林改造过程中，应选择合适的模式营建柏木混交林，对全砍重造要慎重。
이사천성덕양시정양구저효백목림개조8년후적6충모식(력죽모식、탱록잡교죽모식、백죽기모식、백력모식、백죽모식화백목순림)위대상연구토양항식성。결과표명：1)불동개조모식대토양물이성질、유궤질、세근함량급수은성단취체도유현저성적영향(P＜0.05)，기중토양물이성질이백죽기최호，탱록잡교죽최차；토양유궤질함량의차위백죽기＞백죽＞백력＞백목＞력죽＞탱록잡교죽；세근함량칙위탱록잡교죽＞백죽기＞백죽＞백목＞백력＞력죽；수은성단취체백죽기＞백력＞백죽＞백목＞탱록잡교죽＞력죽。2)대14개지표적주성분분석결과표명：불동모식하토양항식성적상대대소여수은성단취체일치，각지표중수은성단취체대항식성공헌솔최대(58.93%)。3)종합비교，백죽기모식재백목인공림개조후생태계통복무공능현저제승，괄의재해지구추엄。괄의적개조모식능구제고임지토양적항식성，감소수토류실，이불당적모식칙회가극수토류실，인차백목저효림개조과정중，응선택합괄적모식영건백목혼교림，대전감중조요신중。
Large-area Cupressus funebris pure forests constructed for protection forests in Yangtze are a major forest type in hilly area Sichuan Basin,but are one of the two major low efficiency stands in Sichuan due to reasons. The plantations were reconstructed with planting different plant species in 2002. In this study,6 planting patterns [C. funebris and Bambusa pervariabilis × Dendrocalamopsis daii ( BZ) ,Quercus acutissima and B. pervariabilis × D. daii (LZ),Q. acutissima and C. funebris (BL),B. pervariabilis × D. daii and C. funebris and Alnus cremastogyne ( BZQ) ,Bambusa pervariabilis,Dendrocalamopsis daii ( CZ) and C. funebris pure forest] were selected to compare their soil anti-erodibility. The study area was located at Jingyang District, Deyang City, Sichuan Province. The experiment of soil anti-erodibility in different vegetable patterns was conducted in December 2010 . The main results were:1 ) There was significant influence of the reformation on soil physical properties,soil organic matter contents,fine root contents and water stable aggregates ( P <0. 05 ) . Soil physical properties in BZQ were the best and those in CZ were the worst. The soil organic matter content was in the order: BZQ > BZ > BL > CB > LZ > CZ; the fine root contents were in the order: CZ > BZQ > BZ > CB > BL > LZ; water stable aggregates were in the order: BZQ >BL> BZ> CB> CZ> LZ. 2 ) Principal component analysis indicated that the sequences of soil anti-erodibility and water stable aggregates contents were fully consistent; the water stable aggregates were the largest contribution ( 58. 93%) to the soil anti-erodibility in all parameters. Moreover, stepwise regression demonstrated that the comprehensive evaluation value was Y = 97. 236 + 1. 889 X5 ( P < 0. 01 ,R2 = 1. 00 ) . Comprehensive analysis of the above parameters showed that BZQ enhanced the ecological functions of C. funebris forests in Sichuan hilly area;consequently,BZQ was the best planting pattern among five patterns studied. This study suggests that the pattern selection is very important,and clearcutting should especially be careful. The appropriate pattern could improve soil corrosion resistance and reduce soil erosion,whereas improper patterns would exacerbate soil erosion.