Results 71 to 80 of about 948 (139)

栾树、黄连木、黄栌水分生理生态特性的研究

open access: yesShuitu Baochi Xuebao, 2002
以栾树、黄连木、黄栌为试验材料,刺槐作为对照,系统测定各树种的叶片水势、气孔导度、蒸腾速率、光合有效辐射、空气相对湿度、土壤温度、土壤水分含量、土壤呼吸速率等水分生理生态指标。结果表明:叶片水势日变化幅度由大到小依次为栾树>刺槐>黄栌>黄连木;蒸腾速率由大到小为刺槐>黄栌>栾树>黄连木;土壤呼吸速率由大到小为黄连木>栾树>刺槐>黄栌。各树种水分利用效率黄连木最高,其次为栾树和刺槐,黄栌最低。
杨吉华 张永涛 等
doaj  

红树林的光合作用 [PDF]

open access: yes, 1996
红树林的光合作用杨盛昌林鹏中须贺常雄(厦门大学生物系,厦门361005)(琉球大学农学部,日本冲绳903-01)PHOTOSynTHESISOfMAngrOVESyAngSHEng-CHAnglInPEng(bIOlOgydEOArTnEnT,XI..
中须贺常雄, 杨盛昌, 林鹏
core  

[Droplet freeze-thawing system based on solid surface vitrification and laser rewarming]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023
Zhu W   +6 more
europepmc   +1 more source

Effects of Heterotrophic Ammonia-oxidizing Bacteria on Yield and Water Use Efficiency of Dryland Maize [PDF]

open access: yes
[Objective] To investigate the effects of inoculating heterotrophic ammonia-oxidizing bacteria (HAOB) on yield and water use efficiency of dryland maize. [Methods] A two-year field experiment was conducted in a drought-prone area using HAOB strain S2_8_1
CAO Jiawei   +5 more
core   +1 more source

A review on ecological anatomy research of mangrove in China [PDF]

open access: yes, 2006
国家自然科学基金资助项目(40276028);; 教育部博士点基金资助项目 ...
李元跃, 林鹏
core  

Effects of Brackish Water with Different Sodium-Potassium Ratios on Soil Water-Salt Characteristics and Winter Wheat Growth [PDF]

open access: yes
[Objective] To study the effects of brackish water irrigation on soil water and salt characteristics and crop growth is helpful to guide the safe utilization of brackish water.
CHENG Yu   +7 more
core   +1 more source

北京山区侧柏林蒸散组分d18O的确定及其定量区分

open access: yesShuitu Baochi Xuebao, 2017
基于稳定同位素技术,对北京山区侧柏林蒸散各组分的d18O进行了确定,并定量区分了蒸散量中蒸腾量和蒸发量所占的比例。在对侧柏林大气水汽氧同位素组成dV进行原位连续观测的同时,选择典型晴天对侧柏枝条和土壤进行野外采样,并结合室内分析分别获得了枝条和土壤水中的氧同位素值。结果显示:(1)用Craig-Gordon方程估测的4个测定日dE介于(-20.26‰)~(-17.48‰),dS介于(-5.22‰)~(1.75‰),dV介于(-19.09‰)~(-16.21‰),dS>dV>dE ...
张永娥   +5 more
doaj  

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