山东农业大学学报（自然科学版）
山東農業大學學報（自然科學版）
산동농업대학학보（자연과학판）
JOURNAL OF SHANDONG AGRICULTURAL UNIVERSITY(NATURAL SCIENCE)
2015年
4期
570-575
,共6页
刘玉静%董周焱%柏新富%卜庆梅
劉玉靜%董週焱%柏新富%蔔慶梅
류옥정%동주염%백신부%복경매
光合性能%资源利用效率%海岸防护林%生长潜力%树种
光閤性能%資源利用效率%海岸防護林%生長潛力%樹種
광합성능%자원이용효솔%해안방호림%생장잠력%수충
Photosynthetic performance%resource use efficiency%coast-protective forest%growth potential%tree species
树种单一是造成我国沿海防护林生态系统脆弱、功能难以发挥的主要因素。对海岸多变环境条件下不同树种的生长发育潜力进行评估有利于沿海防护林建设的树种选择。本实验用TPS-1便携式光合系统测定烟台海岸带6个树种柽柳、黑松、龙柏、白蜡、廊坊杨和刺槐的光合性能指标，同时测定了其碳素利用效率、光合氮利用效率和灰分含量等，并用隶属函数法计算了6个树种的综合资源利用效率，以评定其生长发育潜力。结果表明，6个树种的饱和光强都较高，均适宜在较强光照条件下生长，但柽柳、黑松和龙柏的表观光量子效率、光合速率和光能利用效率均显著低于白蜡、廊坊杨和刺槐，其中尤以龙柏最低。同时，柽柳、黑松和龙柏的光合氮利用效率和叶片碳利用效率也显著低于白蜡、廊坊杨和刺槐，但是其水分利用效率则普遍高于后者；矿质元素利用效率则是柽柳最高、黑松最低，其它4个树种居中。将6个树种对各种环境资源的利用效率与光合性能指标进行综合分析并计算资源利用效率综合指数显示，6个树种中刺槐和白蜡资源利用效率最高、廊坊杨和柽柳次之、黑松再次、龙柏最低。
樹種單一是造成我國沿海防護林生態繫統脆弱、功能難以髮揮的主要因素。對海岸多變環境條件下不同樹種的生長髮育潛力進行評估有利于沿海防護林建設的樹種選擇。本實驗用TPS-1便攜式光閤繫統測定煙檯海岸帶6箇樹種檉柳、黑鬆、龍柏、白蠟、廊坊楊和刺槐的光閤性能指標，同時測定瞭其碳素利用效率、光閤氮利用效率和灰分含量等，併用隸屬函數法計算瞭6箇樹種的綜閤資源利用效率，以評定其生長髮育潛力。結果錶明，6箇樹種的飽和光彊都較高，均適宜在較彊光照條件下生長，但檉柳、黑鬆和龍柏的錶觀光量子效率、光閤速率和光能利用效率均顯著低于白蠟、廊坊楊和刺槐，其中尤以龍柏最低。同時，檉柳、黑鬆和龍柏的光閤氮利用效率和葉片碳利用效率也顯著低于白蠟、廊坊楊和刺槐，但是其水分利用效率則普遍高于後者；礦質元素利用效率則是檉柳最高、黑鬆最低，其它4箇樹種居中。將6箇樹種對各種環境資源的利用效率與光閤性能指標進行綜閤分析併計算資源利用效率綜閤指數顯示，6箇樹種中刺槐和白蠟資源利用效率最高、廊坊楊和檉柳次之、黑鬆再次、龍柏最低。
수충단일시조성아국연해방호림생태계통취약、공능난이발휘적주요인소。대해안다변배경조건하불동수충적생장발육잠력진행평고유리우연해방호림건설적수충선택。본실험용TPS-1편휴식광합계통측정연태해안대6개수충정류、흑송、룡백、백사、랑방양화자괴적광합성능지표，동시측정료기탄소이용효솔、광합담이용효솔화회분함량등，병용대속함수법계산료6개수충적종합자원이용효솔，이평정기생장발육잠력。결과표명，6개수충적포화광강도교고，균괄의재교강광조조건하생장，단정류、흑송화룡백적표관광양자효솔、광합속솔화광능이용효솔균현저저우백사、랑방양화자괴，기중우이룡백최저。동시，정류、흑송화룡백적광합담이용효솔화협편탄이용효솔야현저저우백사、랑방양화자괴，단시기수분이용효솔칙보편고우후자；광질원소이용효솔칙시정류최고、흑송최저，기타4개수충거중。장6개수충대각충배경자원적이용효솔여광합성능지표진행종합분석병계산자원이용효솔종합지수현시，6개수충중자괴화백사자원이용효솔최고、랑방양화정류차지、흑송재차、룡백최저。
The scarcity of tree species is the main factor that results in the vulnerability and malfunction of coastal protection forest as an ecosystem. Assessing the growth potential of the various woody species under the harsh coastal environment will be beneficial to the selection of tree species for coastal shelterbelt construction. In this study, the photosynthetic performance indicators of 6 trees ( namely Tamarix chinensis, Pinus thunbergii, Juniperus chinensis cv kaizuka, Fraxinus chinensis, Populus langfanggensis and Robinia pseudoacacia) were determined with a TPS-1 portable photosynthesis system in the coastal forest shelterbelt of Yantai. Meanwhile, the carbon use efficiency (CUE), photosynthetic nitrogen-use efficiency(PNUE), and the ash content were determined as well. Additionally, the comprehensive indices of resource use efficiency of 6 tree species were calculated with the subordinate function for the evaluation of their growth potential. The results showed that the light saturation point for photosynthesis was relatively high in all the 6 species, which was favourable for the trees to adapt to intense light. However, the apparent quantum yield, photosynthetic rate and light use efficiency (LUE) were significantly lower in T. chinensis, P. Thunbergii and J. chinensis cv kaizuka than in F. chinensis, P. langfanggensis and R. pseudoacacia, with the J. chinensis cv kaizuka showing the lowest efficiency. In addition, the photosynthetic nitrogen-use efficiency and carbon use efficiency were also significantly lower in T. chinensis, P. Thunbergii and J. chinensis cv kaizuka than in F. chinensis, P. langfanggensis and R. pseudoacacia, but the water use efficiency (WUE) was apparently higher in the former 3 species. In terms of the mineral use efficiency (MUE), T. chinensis was at the top and P. thunbergii was at the bottom. The comprehensive index of resource use efficiency, in terms of the utilization of various resources and the photosynthetic performance indicators, could be listed in the following order from high to low: R. pseudoacacia and F. chinensis, P. langfanggensis and T. chinensis, P. thunbergii, J. chinensis cv kaizuka.
