防护林科技
防護林科技
방호림과기
Protection Forest Science and Technology
2015年
10期
7-8,40
,共3页
杉木%采伐迹地%炼山迹地%土壤肥力
杉木%採伐跡地%煉山跡地%土壤肥力
삼목%채벌적지%련산적지%토양비력
Cunninghamia lanceolata%clear cutting land%controlled burning land%soil fertility
研究了杉木林采伐迹地及采伐后的炼山迹地的土壤肥力。结果表明：炼山迹地土壤容重最大，比杉木林地高13.5%，非炼山迹地比杉木林地高5.9%；不同处理非毛管孔隙差异显著，炼山迹地非毛管孔隙最小，比杉木林小105.45%，非炼山迹地非毛管孔隙比杉木林小37.1%；杉木采伐后，酸性降低；有机质也明显下降，非炼山迹地比杉木林低29.1%，炼山迹地比杉木林地低119.22%；非炼山迹地和炼山迹地全 N 含量分别比杉木林下降了23.07%、33.33%，全 P 含量分别下降了64.16%、76.19%，全 K 含量分别下降了10.86%、32.74%；非炼山迹地比杉木林地下降了22.69%，炼山迹地比杉木林地下降了34.05%；杉木采伐后，非炼山迹地速效 P 和速效 K 含量分别比杉木林地下降了15.43%、36.79%；炼山迹地速效 P 和速效 K 含量分别比杉木林地下降53.27%、71.32%。
研究瞭杉木林採伐跡地及採伐後的煉山跡地的土壤肥力。結果錶明：煉山跡地土壤容重最大，比杉木林地高13.5%，非煉山跡地比杉木林地高5.9%；不同處理非毛管孔隙差異顯著，煉山跡地非毛管孔隙最小，比杉木林小105.45%，非煉山跡地非毛管孔隙比杉木林小37.1%；杉木採伐後，痠性降低；有機質也明顯下降，非煉山跡地比杉木林低29.1%，煉山跡地比杉木林地低119.22%；非煉山跡地和煉山跡地全 N 含量分彆比杉木林下降瞭23.07%、33.33%，全 P 含量分彆下降瞭64.16%、76.19%，全 K 含量分彆下降瞭10.86%、32.74%；非煉山跡地比杉木林地下降瞭22.69%，煉山跡地比杉木林地下降瞭34.05%；杉木採伐後，非煉山跡地速效 P 和速效 K 含量分彆比杉木林地下降瞭15.43%、36.79%；煉山跡地速效 P 和速效 K 含量分彆比杉木林地下降53.27%、71.32%。
연구료삼목림채벌적지급채벌후적련산적지적토양비력。결과표명：련산적지토양용중최대，비삼목임지고13.5%，비련산적지비삼목임지고5.9%；불동처리비모관공극차이현저，련산적지비모관공극최소，비삼목림소105.45%，비련산적지비모관공극비삼목림소37.1%；삼목채벌후，산성강저；유궤질야명현하강，비련산적지비삼목림저29.1%，련산적지비삼목임지저119.22%；비련산적지화련산적지전 N 함량분별비삼목림하강료23.07%、33.33%，전 P 함량분별하강료64.16%、76.19%，전 K 함량분별하강료10.86%、32.74%；비련산적지비삼목임지하강료22.69%，련산적지비삼목임지하강료34.05%；삼목채벌후，비련산적지속효 P 화속효 K 함량분별비삼목임지하강료15.43%、36.79%；련산적지속효 P 화속효 K 함량분별비삼목임지하강53.27%、71.32%。
Soil fertility of Cunninghamia lanceolata in clearing cutting and controlled burning land were studied. Result shows that the soil bulk density in controlled burning land is 13.5% higher than that in C.lanceolata planta-tion,non-controlled burning land is 5.9% higher than that in C.lanceolata plantation;differences of non-capillary porosity with different treatments are significant,non-capillary porosity of burning slash ,which is the most least,is 105.45% smaller than that of C.lanceolata;noncapillary porosity of non burning slash is 37.1% than that of C. lanceolata ;acid of soil was reduced after C.lanceolata being harvested;organic matter also decreased significantly, organic matter of non-controlled burning land is 29.1% lower than that in C.lanceolata plantation,organic matter in burning area is 1 1 9.22% lower than that in C.lanceolata;total N content in non-controlled burning land and controlled burning land is decreased by 23.07%,33.33%,respectively than that in C.lanceolata plantation;the total P content decreased by 64.1 6%,76.1 9%,the total K content decreased by 10.86%,32.74%;the content of N for non-controlled burning land was 22.69% lower than that in C.lanceolata plantation,the content of N for controlled burning land was 34.05% lower than that in C.lanceolata forest;after C.lanceolata being harvested, the content of available P & K in non-controlled burning land decreased by 1 5.43%,36.79% than that in C.lan-ceolata plantation;the content of available P & K decreased by 53.27%,71.32% than that in C.lanceolata planta-tion.
