桂西北石漠化地区几种植物光合潜力影响因素分析 |
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引用本文: | 覃勇荣,叶涛,陈贵常,覃海波. 桂西北石漠化地区几种植物光合潜力影响因素分析[J]. 河池师专学报, 2013, 0(5): 1-6 |
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作者姓名: | 覃勇荣 叶涛 陈贵常 覃海波 |
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作者单位: | 河池学院化学与生物工程学院,广西宜州546300 |
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基金项目: | 广西自然科学基金资助项目(桂科自0832273);广西高校重点实验室资助项目(桂教科研(201016号);广西高校特色专业及课程一体化建设项目(桂教高教[2011]102号);河池学院科研专项基金资助项目(2013ZX-N007). |
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摘 要: | 通过对桂西北石漠化地区不同植物叶绿素含量、SPAD值、根际土壤水分、土壤有机质含量、叶面积指数等光合潜力影响因素的比较和相关性分析,为石漠化地区生态恢复重建优良先锋植物的选择提供科学依据。结果表明:土壤有机质含量与根际土水分含量、SPAD值与叶绿素含量呈显著正相关。不同植物的生理特性差异较大,其光合潜力的影响因素也有较大差异。构树叶片的叶绿素含量最高,叶面积指数也较大,适应性强,枫树、黄荆、青檀和阴香也是桂西北地区常见的乡土树种,具有良好的生态经济效益,均可作为石漠化生态恢复的先锋植物使用。
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关 键 词: | 桂西北 石漠化地区 乡土树种 光合潜力 影响因素 |
Influencing Factors Analysis of the Plant Photosynthetic Potential in Karst Rocky Desertification Areas of Northwest Guangxi |
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Affiliation: | QIN Yong- rong, YE Tao, CHEN Gui- chang, QIN Hai -bo (School of Chemistry and Biological Engineering, Hechi University, Yizhou, Guangxi 546300 , China) |
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Abstract: | In order to provide scientific basis for excellent pioneer plants selection of karst stony decertifi- cation areas' ecological restoration and reconstruction in northwest of Guangxi, the influencing factors of photosyn- thetic potential, such as chlorophyll content, SPAD value, rhizosphere soil moisture content, soil organic matter content, leaf area index, etc. were compared and correlation analyzed. The results show that there is a significant positive correlation among rhizosphere soil organic matter content, soil moisture content, SPAD value and chloro- phyll content. Physiological characteristics of different plants are quite different so photosynthetic potential influen- cing factors of different plants are also quite different. The chlorophyll content of Broussonetia papyrifera leave is the higher than that of other plants, and the leaf area index of it is large, and the adaptability of it is relatively strong. Liquidambar formosanas, Vitex negundos, Pteroceltis tatarinowiis and Cinnamomum burmanniis are common native species in northwest of Guangxi, they have good ecological and economic benefits, so they may be used as pioneer plants of karst rocky desertification ecological restoration. |
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Keywords: | northwest of Guangxi karst rocky desertification area native species photosynthetic poten-tial influencing factor |
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