贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2014年
9期
81-85
,共5页
魏媛%吴长勇%孙云%朱忠荣
魏媛%吳長勇%孫雲%硃忠榮
위원%오장용%손운%주충영
植被恢复%土壤养分%生态学%喀斯特山地%贵阳
植被恢複%土壤養分%生態學%喀斯特山地%貴暘
식피회복%토양양분%생태학%객사특산지%귀양
vegetation restoration%soil nutrients%ecology%karst mountainous area%Guiyang
为喀斯特山地的植被恢复和石漠化治理提供参考,采取野外实地调查与取样室内测定相结合的方法,对贵阳市喀斯特山地不同树种配置模式下的土壤理化性质进行分析。结果表明:1)在喀斯特山地12种树种配置模式下的土壤 pH均比空地低,并以柏木+大叶樟混交林最低,为7.53;而有机质、全氮、全磷和碱解氮含量均高于空地(81.93 g/kg,3.99 g/kg,0.27 g/kg和253 mg/kg)。其中,桤木纯林土壤的有机质、全磷、速效磷和碱解氮含量最高,分别为149.13 g/kg、0.65 g/kg、7.0 mg/kg和497 mg/kg,三角枫+桤木混交林土壤的有机质、全氮、全磷和碱解氮含量最低,分别为87.42 g/kg、4.38 g/kg、0.31 g/kg 和293 mg/kg。2)12种树种配置模式中的土壤养分总含量以桤木纯林、红豆杉+光皮树混交林、鹅掌楸+大叶樟混交林、桤木+大叶樟混交林4种配置模式较高,三角枫+桤木混交林配置模式较低。建议:喀斯特山地的植被恢复采用桤木纯林、红豆杉+光皮树混交林、鹅掌楸+大叶樟混交林、桤木+大叶樟混交林4种配置模式。
為喀斯特山地的植被恢複和石漠化治理提供參攷,採取野外實地調查與取樣室內測定相結閤的方法,對貴暘市喀斯特山地不同樹種配置模式下的土壤理化性質進行分析。結果錶明:1)在喀斯特山地12種樹種配置模式下的土壤 pH均比空地低,併以柏木+大葉樟混交林最低,為7.53;而有機質、全氮、全燐和堿解氮含量均高于空地(81.93 g/kg,3.99 g/kg,0.27 g/kg和253 mg/kg)。其中,榿木純林土壤的有機質、全燐、速效燐和堿解氮含量最高,分彆為149.13 g/kg、0.65 g/kg、7.0 mg/kg和497 mg/kg,三角楓+榿木混交林土壤的有機質、全氮、全燐和堿解氮含量最低,分彆為87.42 g/kg、4.38 g/kg、0.31 g/kg 和293 mg/kg。2)12種樹種配置模式中的土壤養分總含量以榿木純林、紅豆杉+光皮樹混交林、鵝掌楸+大葉樟混交林、榿木+大葉樟混交林4種配置模式較高,三角楓+榿木混交林配置模式較低。建議:喀斯特山地的植被恢複採用榿木純林、紅豆杉+光皮樹混交林、鵝掌楸+大葉樟混交林、榿木+大葉樟混交林4種配置模式。
위객사특산지적식피회복화석막화치리제공삼고,채취야외실지조사여취양실내측정상결합적방법,대귀양시객사특산지불동수충배치모식하적토양이화성질진행분석。결과표명:1)재객사특산지12충수충배치모식하적토양 pH균비공지저,병이백목+대협장혼교림최저,위7.53;이유궤질、전담、전린화감해담함량균고우공지(81.93 g/kg,3.99 g/kg,0.27 g/kg화253 mg/kg)。기중,기목순림토양적유궤질、전린、속효린화감해담함량최고,분별위149.13 g/kg、0.65 g/kg、7.0 mg/kg화497 mg/kg,삼각풍+기목혼교림토양적유궤질、전담、전린화감해담함량최저,분별위87.42 g/kg、4.38 g/kg、0.31 g/kg 화293 mg/kg。2)12충수충배치모식중적토양양분총함량이기목순림、홍두삼+광피수혼교림、아장추+대협장혼교림、기목+대협장혼교림4충배치모식교고,삼각풍+기목혼교림배치모식교저。건의:객사특산지적식피회복채용기목순림、홍두삼+광피수혼교림、아장추+대협장혼교림、기목+대협장혼교림4충배치모식。
Using field sampling investigation and laboratory analysis combining methods,soil physical and chemical properties of 1 2 kinds of trees configuration modes of Guiyang karst mountainous area were determined and analyzed to provide a reference for vegetation restoration and rocky desertification management.Results:1 )Soil pH was lower than the control in different vegetation restoration models, Cupressus funebris+Cinnamomum septentrionale plot was the lowest,7.53.Contents of soil organic matter,total N,total P,available N were higher than the control,which were respectively 81.93 g/kg, 3.99 g/kg,0.27 g/kg and 253 mg/kg.Contents of soil organic matter,total P,available P and available N of Alnuscremastogyne forest were the highest,respectively 149.13 g/kg,0.65 g/kg,7.0 mg/kg and 497 mg/kg;Contents of soil organic matter,total N,total P,available N of Alnus cremastogyne+Acer buergerianum mingled forest were the lowest,respectively 87.42 g/kg,4.38 g/kg,0.31 g/kg and 293 mg/kg.2)Under 12 kinds of species configuration modes,the total content of soil nutrients in four configuration modes of Alnus cremastogyne,Taxus Bonsai+Cornus wilsoniana,Liriodendron chinens+Cinnamomum septentrionale,Alnus cremastogyne +Cinnamomum septentrionale were higher,Alnus cremastogyne+Acer buergerianum plot was the lowest.Therefore,the following four configuration modes were recommend,which were Alnus cremastogyne,Taxus bonsai+Cornus wilsoniana,Liriodendron chinens+Cinnamomum septentrionale,Alnus cremastogyne+Cinnamomum septentrionale.