Research progress on the effects of forest fire on forest ecosystem C-N-P ecological stoichiometry characteristics

doi:10.12302/j.issn.1000-2006.202003037

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2021, Vol. 45 ›› Issue (2): 1-9.doi: 10.12302/j.issn.1000-2006.202003037

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Research progress on the effects of forest fire on forest ecosystem C-N-P ecological stoichiometry characteristics

SUN Long(), DOU Xu, HU Tongxin^*()

Key Laboratory of Sustainable Forest Ecosystem Management-Ministry of Education, School of Forestry, Northeast Forestry University, Harbin 150040, China

Received:2020-03-13 Accepted:2020-07-04 Online:2021-03-30 Published:2021-04-09
Contact: HU Tongxin E-mail:sunlong365@126.com;htxhtxapple@sina.com

Abstract

Abstract:

Forest fires can change the ecological stoichiometry of elements in forest ecosystems, reflecting the pattern of biogeochemical cycle change of the forest ecosystem environment after the fire. Clarifying the ecological stoichiometrics characteristics of carbon (C), nitrogen (N) and phosphorus (P) in forest ecosystems under forest fire disturbances is essential for understanding the response mechanisms of forest ecosystems to forest fire disturbances. By consulting a large number of relevant documents, the author summarizes and analyzes the impact pattern of forest fire disturbance on forest ecosystem C-N-P ecological stoichiometry and on plant, litter and soil C-N-P ecological stoichiometry characteristics. It is believed that the forest ecosystem C-N-P ecological stoichiometric characteristics were mainly affected by fire factors (i.e., fire intensity, fire frequency, recovery years after fire), type of vegetation and soil properties in three aspects. To address the scientific problems that need to be solved urgently in the study of forest fires on the ecological stoichiometry of forest ecosystems, prospects were made from three aspects, including exploring the influence of the mechanism of forest fire disturbance on the internal stability of plant ecological stoichiometry, comprehensively clarifying the study of multi-element ecological stoichiometry under forest fire disturbance, and establishing the ecological stoichiometric relationship of plant-litter-soil complex systems under forest fire disturbance. These are important for a deep understanding of the nutrient cycle and balance of forest ecosystems within the context of global climate change, for the rational formulation of forest fire management measures, and for further exploring the impact mechanism of plant growth, litter decomposition, and biogeochemical cycles in forest ecosystems after fire disturbance in China, to provide a reference for promoting the development of this field.

Key words: forest fire, forest ecosystem, ecological stoichiometry, litter, soil nutrient

CLC Number:

S718.5

SUN Long, DOU Xu, HU Tongxin. Research progress on the effects of forest fire on forest ecosystem C-N-P ecological stoichiometry characteristics[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2021, 45(2): 1-9.

Figures/Tables 2

Fig.1

Table 1

Fire disturbance on soil ecological stoichiometry characteristics of different forest ecosystem"

气候类型 climate type	植被类型,分布区 vegetation type, distribution area	火烧强度 fire intensity	火烧后恢复时间/a time after fire	c(C)/%	c(N)/ (mg·kg^-1)	c(P)/ (mg·kg^-1)	N/P	参考文献 reference
寒温带 cold temperate zone	兴安落叶松林 L. gmelinii, 大兴安岭 Great Khing’an Mountains	对照control	1	10.100±2.000 a	4 000±700 a	—	—	[37]
		低 low		6.800±0.800 a	3 700±300 a	—	—
		高 high		7.300±1.200 a	3 100±200 a	—	—
	偃松-兴安落叶松林 P. pumila- L. gmelinii, 大兴安岭 Great Khing’an Mountains	对照control	5	12.683±0.332 a	5 460±430 a	960±270	5.69±1.15	[38]
		低 low		11.945±0.918 a	5 230±280 a	870±340	6.01±2.02
		中medium		8.793±0.401 b	4 200±230 b	530±210	7.92±2.70
		高 high		7.255±0.392 c	4 410±370 b	440±370	10.02±7.58
		低 low	19	12.174±0.187 a	5 280±630 a	930±520	5.68±2.49
		中medium		8.916±0.411 b	4 490±470 b	620±230	7.24±1.92
		高 high		7.934±0.362 c	4 400±170 b	460±230	9.56±4.41
	兴安落叶松林 L. gmelinii, 大兴安岭 Great Khing’an Mountains	对照control	5	—	—	597±68	—	[39]
	兴安落叶松林 L. gmelinii, 大兴安岭 Great Khing’an Mountains	高 high	5	—	—	833±160	—	[39]
温带 temperate zone	油松林 P. tabulaeformis (0~10 cm土壤层), 河北平泉 Pingquan,Hebei	对照control	1	2.960±0.060	1 850±930 a	380±190 a	4.87±0.01	[40]
		低 low		2.340±0.030	1 340±90 a	240±10 a	5.58±0.14
		中medium		2.430±0.030	860±240 a	110±40 a	7.81±0.66
		高 high		2.970±0.410	2 170±130 a	290±30 a	7.48±0.33
	油松林 P. tabulaeformis (10~20 cm土壤层), 河北平泉 Pingquan,Hebei	对照control	1	1.560±0.060	1 260±810 a	330±190 a	3.81±0.26
		低 low		1.300±0.060	790±140 a	190±20 a	4.15±0.30
		中medium		1.270±0.060	470±90 a	60±20 a	7.83±1.11
		高 high		1.680±0.220	1 110±140 a	170±0 a	6.52±0.82
	油松林 P. tabulaeformis (20~30 cm土壤层), 河北平泉 Pingquan,Hebei	对照control	1	0.740±0.080	910±730 a	300±160 a	3.03±0.82
		低 low		0.950±0.050	620±90 a	170±20 a	3.65±0.10
		中medium		0.650±0.030	320±90 a	50±0 a	6.4±1.80
		高 high		1.000±0.080	740±230 a	160±60 a	4.63±0.30
亚热带 subtropical zone	常桉林E. crebra, 昆士兰州Queensland	对照control	5	2.300±0.200	3 750±530	347±26	10.81±0.72	[9]
	常桉林E. crebra, 昆士兰州Queensland	低 low	5	1.900±0.200	5 700±590	635±50	8.98±0.22	[9]
	枫香林L. formosana, 湖南株洲 Zhuzhou,Hunan	对照control	—	3.390±0.900 a	2 000±600 ab	260±30 ab	7.69±1.42	[41]
		低 low		3.080±0.360 a	2 100±600 a	260±20 b	8.08±1.69
		中medium		2.870±0.340	1 900±400 b	250±20 b	7.60±0.99
		高 high		2.530±0.480	1 800±500 b	230±30	7.83±1.15
	马尾松-木荷林 P. massoniana- S. superba, 湖南株洲 Zhuzhou,Hunan	对照control	—	1.530±0.660 a	1 200±300 ab	220±40 abc	5.45±0.37
		低 low		1.400±0.380 a	1 200±300 a	220±30 b	5.45±0.62
		中medium		1.310±0.350 a	1 100±200 b	210±30 b	5.24±0.20
		高 high		1.130±0.320	1 000±200 b	190±40 c	5.26±0.06
	杉木-木荷 C. lanceolata- S. superba, 湖南株洲 Zhuzhou,Hunan	对照control	—	2.090±1.060 a	2 500±400 abc	320±40 abc	7.81±0.27
		低 low		1.830±0.530 a	2 600±500 a	320±40 a	8.13±0.55
		中medium		1.680±0.420 a	2 400±300 b	310±30 b	7.74±0.22
		高 high		1.470±0.300	2 200±400 c	290±40 c	7.59±0.33
	檫木-杉木林 S. tzumu-C. lanceolata, 湖南湘潭 Xiangtan,Hunan	对照control	—	1.440±1.060 ab	900±30 a	100±10 a	9.00±0.60
		低 low		1.290±0.700 a	900±30 a	90±20 a	10.00±1.33
		中medium		1.200±0.590 ab	800±30 a	90±10 a	8.89±0.65
		高 high		1.040±0.500 b	900±80 a	90±20 a	10.00±1.89
热带 tropical zone	稀树草原^* Savanna	对照control		0.046±0.004 a	2 890±220 a	1 540±150	1.88±0.04	[10]
		对照control	1	0.037±0.003 b	1 790±70 b	1 740±230	1.03±0.10
		低 low	3	0.039±0.005 b	2 040±150 b	1 660±320	1.23±0.15
	雨林rain forest, 黑卡诺Cano Negro, 哥斯达黎加Costa Rica	对照control	1	5.460±0.500	5 400±40	2.89±0.14	1 868.51±76.68	[42]
	雨林rain forest, 黑卡诺Cano Negro, 哥斯达黎加Costa Rica	低 low	1	4.270±0.700	4 200±100	4.53±0.18	927.15±14.77
	雨林rain forest, 西孟加拉邦Kukra, 印度India	对照control	1	6.980±2.300	5 700±100	3.54±0.21	1 610.17±67.27
	雨林rain forest, 西孟加拉邦Kukra, 印度India	低 low	1	10.480±1.700	9 100±100	7.60±0.18	1 197.37±15.20

Table 1

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Research progress on the effects of forest fire on forest ecosystem C-N-P ecological stoichiometry characteristics

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