Does Fuels Management Accomplish Restoration in Southwest Oregon, USA, Chaparral? Insights from Age Structure

Fire Ecology

Table 2 Percent of shrubs sampled in each stand by age class and chaparral vegetation type in southwest Oregon in 2007. Bolded values in red indicate age class corresponding to recorded year of last fire; where no shrub ages corresponded to a fire, fire occurrence is represented by a red X. Stands without bolded values have not had a recorded fire in at least 111 yr.

	Chaparral vegetation type	Age class (yr)
	Chaparral vegetation type	1 – 9	10 – 19	20 – 29	30 – 39	40 – 49	50 – 59	60 – 69	70 – 79	80 – 89	90 – 99	100 – 109	110 – 119	120 – 129	130 – 139	140 – 149
Even-aged stands	Buckbrush		7	93
	Buckbrush			100
	Sticky whiteleaf manzanita/Oregon white oak		53	47
	Sticky whiteleaf manzanita/Oregon white oak		47	40	13
	Open Oregon white oak/chaparral	7	64	29
	Buckbrush		73	27					X
	Buckbrush		53	47					X
	Sticky whiteleaf manzanita			80	20				X
	Sticky whiteleaf manzanita							7	27	67			X
	Open Oregon white oak/chaparral							29	14	57			X
Stands with fire-free recruits	Sticky whiteleaf manzanita/Oregon white oak				4	4	21	25	25	21
	Open Oregon white oak/chaparral				7	27	13	33	13	7
	Open Oregon white oak/chaparral		40	13	13	20			7	7
	Buckbrush			13	7	27	33	20			X
	Open Oregon white oak/chaparral		20	7	7		20	7	27	13	X
	Sticky whiteleaf manzanita/Oregon white oak			7	7				7	47	13	7	13
	Open Oregon white oak/chaparral		13	4	22	35	13	13					X
	Buckbrush				13	40	27	13	7				X
Stands with fire survivors	Open Oregon white oak/chaparral		73	7		7				13
Stands with fire-free recruits and fire survivors	Open Oregon white oak/chaparral			7	7	27	27	20		7			7
	Sticky whiteleaf manzanita/Oregon white oak					8	31		23	23		8		8
	Buckbrush			13		7	13	47	13			7
	Sticky whiteleaf manzanita		13	27		13	13	7	X	20		7
	Sticky whiteleaf manzanita		7	40					13	7	27	7
	Sticky whiteleaf manzanita/Oregon white oak						7			13		20	20	27	13
	Sticky whiteleaf manzanita/Oregon white oak				29				14	14	X	14	14			14
	Sticky whiteleaf manzanita/Oregon white oak					7		7		7	47	7	20	7
	Sticky whiteleaf manzanita			7		29	7	29	7	14	7	X
	Sticky whiteleaf manzanita		7							53	33		7
	Sticky whiteleaf manzanita/Oregon white oak		25		4				4	13	4	29	17		4
	Buckbrush		7	13	13	7	27	13	7			13	X