福建林业科技
福建林業科技
복건임업과기
JOURNAL OF FUJIAN FORESTRY SCIENCE AND TECHNOLOGY
2014年
1期
88-91
,共4页
福建柏人工林%间伐%生物多样性%土壤养分
福建柏人工林%間伐%生物多樣性%土壤養分
복건백인공림%간벌%생물다양성%토양양분
Fokienia hodginsii plantation%thinning%biodiversity%soil nutrient
在福建省安溪白濑国有林场对间伐（保留密度分别为425、725、825株· hm-2）后的27年生福建柏人工林的林分生长状况、林下植被生物多样性以及林下土壤的养分状况进行调查研究。结果表明：不同保留密度对福建柏林分生长影响显著，降低林分密度能促进福建柏个体粗生长，但林分密度过低单位面积产量下降。林分单位面积蓄积量，以密度725株· hm-2的林分最高，达211.42 m3· hm-2；密度425株· hm-2的林分最低，为134.02 m3· hm-2，二者蓄积量差异达77.4 m3· hm-2。间伐能有效提高林下植被的丰富度指数和多样性指数，间伐强度越大效果越明显，保留密度425、725、825株· hm-2林下灌木植被丰富度分别为17、10、7，生物多样性指数（ Shannon-Wiener指数）分别为2.137、1.633、1.356。中度间伐（保留密度为725株· hm-2）的林分土壤的养分状况最好，对维持地力效果最佳。
在福建省安溪白瀨國有林場對間伐（保留密度分彆為425、725、825株· hm-2）後的27年生福建柏人工林的林分生長狀況、林下植被生物多樣性以及林下土壤的養分狀況進行調查研究。結果錶明：不同保留密度對福建柏林分生長影響顯著，降低林分密度能促進福建柏箇體粗生長，但林分密度過低單位麵積產量下降。林分單位麵積蓄積量，以密度725株· hm-2的林分最高，達211.42 m3· hm-2；密度425株· hm-2的林分最低，為134.02 m3· hm-2，二者蓄積量差異達77.4 m3· hm-2。間伐能有效提高林下植被的豐富度指數和多樣性指數，間伐彊度越大效果越明顯，保留密度425、725、825株· hm-2林下灌木植被豐富度分彆為17、10、7，生物多樣性指數（ Shannon-Wiener指數）分彆為2.137、1.633、1.356。中度間伐（保留密度為725株· hm-2）的林分土壤的養分狀況最好，對維持地力效果最佳。
재복건성안계백뢰국유림장대간벌（보류밀도분별위425、725、825주· hm-2）후적27년생복건백인공림적림분생장상황、림하식피생물다양성이급림하토양적양분상황진행조사연구。결과표명：불동보류밀도대복건백림분생장영향현저，강저림분밀도능촉진복건백개체조생장，단림분밀도과저단위면적산량하강。림분단위면적축적량，이밀도725주· hm-2적림분최고，체211.42 m3· hm-2；밀도425주· hm-2적림분최저，위134.02 m3· hm-2，이자축적량차이체77.4 m3· hm-2。간벌능유효제고림하식피적봉부도지수화다양성지수，간벌강도월대효과월명현，보류밀도425、725、825주· hm-2림하관목식피봉부도분별위17、10、7，생물다양성지수（ Shannon-Wiener지수）분별위2.137、1.633、1.356。중도간벌（보류밀도위725주· hm-2）적림분토양적양분상황최호，대유지지력효과최가。
In Anxi Bailai State-Owned Forest Farm,the growth status,undergrowth biodiversity and soil nutrient status (reserved density respectively 425,725,and 825 strains hm-2 ) of 27-year-old Fokienia hodginsii plantation stand after thinning were stud-ied.Results showed that the different retention density effect on Fokienia hodginsii plantation stand growth was significant,reducing the stand density could promote the growth of Fokienia hodginsii individual thickening growth,but the stand density was too low and the unit area yield declined.The forest stand volume was highest with the density of 725 plants hm-2 ,up to 211.42 m3 · hm-2;the forest stand volume was the lowest with the density of 425 trees hm-2 ,up to 134.02 m3 · hm-2 ,the two volume difference reached 77.4 m3 · hm-2.The thinning could effectively increased the undergrowth richness index and diversity index,the larger the thinning intensity was,the more obvious the effect was,the understory shrub vegetation abundance reached 17,10 and 7,respectively with the retains densities of 425,725,825 plants hm-2 The biodiversity indexes (shannon wiener indexes) were 2.137,1.633,1.356,respec-tively.The moderate-thinned ( reserved density of 725 plants hm-2 ) stand soil nutrient status was the best,the maintaining soil fertili-ty effect was the best.
