| 西双版纳橡胶林与其他类型林分生物量及碳储量的比较 |
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| 引用本文： | 徐睿,谢江,岩香甩,张勇波,陈国云,黄菁,周会平.西双版纳橡胶林与其他类型林分生物量及碳储量的比较[J].热带作物学报,2021,42(4):1145-1153. |
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| 作者姓名： | 徐睿 谢江 岩香甩 张勇波 陈国云 黄菁 周会平 |
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| 作者单位： | 云南省热带作物科学研究所,云南景洪 666100 |
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| 基金项目： | 云南省热带作物科技创新体系建设专项资金项目(RF2019) |
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| 摘 要： | 为探明橡胶林的生物量和碳储量,以更好地了解橡胶林在区域生态系统中的碳汇作用,研究了西双版纳地区成龄橡胶林及另外2种主要类型人工林——澳洲坚果林和茶园的生物量与碳储量及其分配特征。采用完全收获法采集平均标准木全株,划取样方采集土壤、林下植被和枯落物,并对所有样品进行实际称重和含碳量测定,进而计算生物量和碳储量。结果表明：橡胶林的总生物量为(289.18±15.15)t/hm2,其中林木生物量占比97.06%;橡胶林的总碳储量为(285.02±15.12)t/hm2,其中土壤碳储量占比54.18%、林木碳储量占比45.30%。橡胶林的总生物量远高于茶园(56.82±12.10)t/hm2]和澳洲坚果林(44.46±3.83)t/hm2],但三者生物量分配特征相同,均是林木生物量占绝大部分而枯落物和林下植被占比很小;橡胶林的总碳储量也远高于澳洲坚果林(162.70±3.83)t/hm2]和茶园(112.03±8.52)t/hm2],且三者都是土壤碳储量占比最大、林木碳储量其次,但澳洲坚果林和茶园都是土壤碳储量的占比（88.18%和77.64%）远高于林木碳储量的占比（10.76%和21.70%）。尽管橡胶林的生物量和碳储量与热带雨林（生物量约420 t/hm2,碳储量约310 t/hm2）相比低很多,但比其他类型人工林高,而橡胶林复合种植模式可进一步显著提高林分生物量的积累和储碳固碳能力,提升橡胶林生态系统的生产力和碳汇功能。本研究为评估橡胶树种植对区域生态系统碳平衡的影响提供了基础依据。
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| 关 键 词： | 橡胶林 生物量 碳储量 澳洲坚果林 茶园 西双版纳 |
| 收稿时间： | 2020-02-28 |
Comparison on Biomass and Carbon Storage of Rubber Plantation with Other Types of Forest in Xishuangbanna |
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| XU Rui,XIE Jiang,YAN Xiangshuai,ZHANG Yongbo,CHEN Guoyun,HUANG Jing,ZHOU Huiping.Comparison on Biomass and Carbon Storage of Rubber Plantation with Other Types of Forest in Xishuangbanna[J].Chinese Journal of Tropical Crops,2021,42(4):1145-1153. |
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| Authors: | XU Rui XIE Jiang YAN Xiangshuai ZHANG Yongbo CHEN Guoyun HUANG Jing ZHOU Huiping |
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| Institution: | Yunnan Institute of Tropical Crops, Jinghong, Yunnan 666100, China |
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| Abstract: | In order to better understand the role of rubber plantation in carbon sink of local system, the biomass, carbon storage and distribution characteristics of mature rubber plantation and other 2 types of plantation (macadamia plantation and tea plantation) in Xishuangbanna were studied. The whole plants of average woods were completely harvested, and the samples of soil, undergrowth and litter were collected by sample survey method. After the weight and C content of all samples were practically measured, the biomass and carbon storage were calculated. The total biomass of rubber plantation was (289.18±15.15)t/hm2, and of which wood biomass accounted for 97.06%. The total carbon storage of rubber plantation was (285.02±15.12)t/hm2, and of which soil carbon reserve accounted for 54.18% and wood carbon reserve accounted for 45.30%. The total biomass of rubber plantation was much higher than that of tea plantation (56.82±12.10)t/hm2] and macadamia plantation (44.46±3.83)t/hm2], but showing same distribution characteristics that wood biomass was the majority while litter and undergrowth was the fraction. The total carbon storage of rubber plantation was also much higher than macadamia plantation (162.70±3.83)t/hm2] and tea plantation (112.03±8.52)t/hm2], and the proportion of soil carbon reserves was the largest, followed by wood carbon reserves. However, in macadamia plantation and tea plantation, the proportion of soil carbon reserves (88.18% and 77.64%) was far higher than that of wood carbon reserves (10.76% and 21.70%). Although the biomass and carbon storage of rubber plantation were much lower than tropical rainforest (biomass 420 t/hm2, carbon storage 310 t/hm2), but higher than other types of plantation. Furthermore, adopting mixed rubber plantation could significantly promote biomass accumulation as well as carbon storage and sequestration, improving the net productivity and carbon sink of rubber plantation ecosystem. This study could provide basis for assessing the impact of rubber plantation on the carbon balance of regional ecosystem. |
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| Keywords: | rubber plantation biomass carbon storage macadamia plantation tea plantation Xishuangbanna |
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