防护林科技
防護林科技
방호림과기
PROTECTION FOREST SCIENCE AND TECHNOLOGY
2014年
12期
5-6,9
,共3页
黄石德%黄锦祥%林捷%高伟%黄龙为%卓辉
黃石德%黃錦祥%林捷%高偉%黃龍為%卓輝
황석덕%황금상%림첩%고위%황룡위%탁휘
紫色土%马尾松老头林%杨梅%光合特性
紫色土%馬尾鬆老頭林%楊梅%光閤特性
자색토%마미송로두림%양매%광합특성
purple soil%old-man-forest of Pinus massoniana%Myrica rubra%photosynthesis characteristics
通过比较分析紫色土侵蚀区马尾松老头林混交杨梅后混交树种的生长状况、叶绿素含量及光合特性的差异,试图揭示混交的营林模式对混交树种生理生态的影响。结果表明:马尾松老头林混交杨梅后,马尾松的胸径和树高分别增加45.55%和35.90%,其叶片叶绿素 a、b 和叶绿素 a+b 表现为略有增加,而叶绿素 a/b 比值从2.246减少到2.181;马尾松老头林混交杨梅后,马尾松的最大净光合速率和量子效率均表现为显著增加,光的补偿点表现为略为减少,而光的饱和点表现为略为增加,表明混交杨梅后增强了马尾松的光合能力。
通過比較分析紫色土侵蝕區馬尾鬆老頭林混交楊梅後混交樹種的生長狀況、葉綠素含量及光閤特性的差異,試圖揭示混交的營林模式對混交樹種生理生態的影響。結果錶明:馬尾鬆老頭林混交楊梅後,馬尾鬆的胸徑和樹高分彆增加45.55%和35.90%,其葉片葉綠素 a、b 和葉綠素 a+b 錶現為略有增加,而葉綠素 a/b 比值從2.246減少到2.181;馬尾鬆老頭林混交楊梅後,馬尾鬆的最大淨光閤速率和量子效率均錶現為顯著增加,光的補償點錶現為略為減少,而光的飽和點錶現為略為增加,錶明混交楊梅後增彊瞭馬尾鬆的光閤能力。
통과비교분석자색토침식구마미송로두림혼교양매후혼교수충적생장상황、협록소함량급광합특성적차이,시도게시혼교적영림모식대혼교수충생리생태적영향。결과표명:마미송로두림혼교양매후,마미송적흉경화수고분별증가45.55%화35.90%,기협편협록소 a、b 화협록소 a+b 표현위략유증가,이협록소 a/b 비치종2.246감소도2.181;마미송로두림혼교양매후,마미송적최대정광합속솔화양자효솔균표현위현저증가,광적보상점표현위략위감소,이광적포화점표현위략위증가,표명혼교양매후증강료마미송적광합능력。
In order to reveal the effect of mixing mode on physiological ecology of mixing species,the growth status, chlorophyll content & photosynthesis characteristics of mixed species for old-man-forest of Pinus massoniana after mixed with Myrica rubra were analyzed in the purple erosion soil zone.Result shows that:diameter & tree height of Pinus massoniana respectively increase by 45.55% & 35.90% after mixed with Myrica rubra in old-man-forest of Pinus massoniana ;chlorophyll a,chlorophyll b and chlorophyll a+ b content of the leaf for Pinus massoniana have slight increase,and chlorophyll a/b value reduce form 2.246 to 2.181;after mixed with Myrica rubra in old-man forest of Pinus massoniana ,the maximum net photosynthetic rate & quantum utilization efficiency increase significantly;the light compensate point increase slightly and the light saturate point decrease slightly,which indi-cates photosynthesis ability of Pinus massoniana was improved after mixed with Myrica rubra .