生态环境学报
生態環境學報
생태배경학보
ECOLOGY AND ENVIRONMENT
2013年
8期
1418-1422
,共5页
刘阳%刘畅%邢兆凯%贾树海%赵旭炜%李明%程利
劉暘%劉暢%邢兆凱%賈樹海%趙旭煒%李明%程利
류양%류창%형조개%가수해%조욱위%리명%정리
矸石山%造林模式%土壤养分%土壤酶活性
矸石山%造林模式%土壤養分%土壤酶活性
안석산%조림모식%토양양분%토양매활성
coal gangue%afforestation model%soil nutrients%soil enzymes
本文以抚顺矸石山立地条件下树龄为10年的刺槐Robinia pseudoacacia L.、火炬Rhus typhina Nutt、白榆Ulmus pumila L.、沙棘Hippophae rhamnoides L.林以及植被自然恢复裸地(CK)5种植被恢复模式为研究对象,按土壤发生学层次进行采样,对土壤有机质、碱解氮、有效磷、速效钾、pH、过氧化氢酶、蔗糖酶和脲酶等指标进行研究,结果表明:与CK相比,4种造林模式显著提高了 Ah层的土壤有机质和养分含量,其中,有机质、有效磷改良效果最好的是白榆模式,分别增加了194.8%、442.9%;速效钾改良效果最好的是刺槐模式,增加了262.0%;碱解氮则是火炬模式改良效果最好,增加了509.2%。不同造林模式与CK相比增加了各层次的过氧化氢酶、脲酶、蔗糖酶活性,其中,蔗糖酶和过氧化氢酶活性Ah层最大的是火炬模式,增加了134.5%和880.9%;脲酶酶活性最大的是白榆模式,增加了119.1%。从垂直角度看,有机质、碱解氮、过氧化氢酶、脲酶随土层加深含量降低,在 C 层达到最小值,而速效钾、有效磷、蔗糖酶的最小值则出现在 AC 层;不同模式对土壤pH影响不一,垂直规律不明显。
本文以撫順矸石山立地條件下樹齡為10年的刺槐Robinia pseudoacacia L.、火炬Rhus typhina Nutt、白榆Ulmus pumila L.、沙棘Hippophae rhamnoides L.林以及植被自然恢複裸地(CK)5種植被恢複模式為研究對象,按土壤髮生學層次進行採樣,對土壤有機質、堿解氮、有效燐、速效鉀、pH、過氧化氫酶、蔗糖酶和脲酶等指標進行研究,結果錶明:與CK相比,4種造林模式顯著提高瞭 Ah層的土壤有機質和養分含量,其中,有機質、有效燐改良效果最好的是白榆模式,分彆增加瞭194.8%、442.9%;速效鉀改良效果最好的是刺槐模式,增加瞭262.0%;堿解氮則是火炬模式改良效果最好,增加瞭509.2%。不同造林模式與CK相比增加瞭各層次的過氧化氫酶、脲酶、蔗糖酶活性,其中,蔗糖酶和過氧化氫酶活性Ah層最大的是火炬模式,增加瞭134.5%和880.9%;脲酶酶活性最大的是白榆模式,增加瞭119.1%。從垂直角度看,有機質、堿解氮、過氧化氫酶、脲酶隨土層加深含量降低,在 C 層達到最小值,而速效鉀、有效燐、蔗糖酶的最小值則齣現在 AC 層;不同模式對土壤pH影響不一,垂直規律不明顯。
본문이무순안석산입지조건하수령위10년적자괴Robinia pseudoacacia L.、화거Rhus typhina Nutt、백유Ulmus pumila L.、사극Hippophae rhamnoides L.림이급식피자연회복라지(CK)5충식피회복모식위연구대상,안토양발생학층차진행채양,대토양유궤질、감해담、유효린、속효갑、pH、과양화경매、자당매화뇨매등지표진행연구,결과표명:여CK상비,4충조림모식현저제고료 Ah층적토양유궤질화양분함량,기중,유궤질、유효린개량효과최호적시백유모식,분별증가료194.8%、442.9%;속효갑개량효과최호적시자괴모식,증가료262.0%;감해담칙시화거모식개량효과최호,증가료509.2%。불동조림모식여CK상비증가료각층차적과양화경매、뇨매、자당매활성,기중,자당매화과양화경매활성Ah층최대적시화거모식,증가료134.5%화880.9%;뇨매매활성최대적시백유모식,증가료119.1%。종수직각도간,유궤질、감해담、과양화경매、뇨매수토층가심함량강저,재 C 층체도최소치,이속효갑、유효린、자당매적최소치칙출현재 AC 층;불동모식대토양pH영향불일,수직규률불명현。
In this paper, five afforestation models i.e. Robinia pseucdoacacia L., Rhus typhina Nutt, Ulmus pumila L., Hippophae rhamnoides L. and natural restoration land (take as control) were studied respectively. According to soil genesis, soil samples were collected and values of organic matter, available phosphorus, available kalium, pH and enzyme activities of catalase, invertase and urease in each soil sample were investigated. Contrasting with the control, the amount of soil nutrition in the soil horizon of Ah were increased in four afforestation models. The model of Ulmus pumila showed the best improvement effects of organic matter and available phosphorus, and increased 194.8%and 442.9%, respectively. The model of Robinia pseudoacacia and the model of Rhus typhina showed the highest improvement effects of available kalium and alkali hydrolysable respectively and increased 262.0%and 509.2% respectively. Contrasting with the control, the activities of catalase, invertase and urease were all increased in the four vegetation restoration models. The highest activities of catalase and urease in Ah appeared in Rhus typhina moddle, and increased 134.5%and 880.9%respectively. The highest activity of urease appeared in Ulmus pumila moddle and increased 119.1%. Vertically, organic matter, alkali hydrolysable, catalase and urease decrease with the depth of the soil and reached the lowest at C level. The lowest amount of available kalium, available phosphorus and activity of invertase appeared at the Level of AC. There was no particular pattern of pH variation along the vertical shift.