Collected Evidence: Collected Evidence: Create mounds or hollows before planting non-woody plants: freshwater wetlands Two studies evaluated the effects, on vegetation, of creating mounds or hollows in freshwater wetlands before planting emergent, non-woody plants. Both studies were in the same wetland in the USA, but used different experimental set-ups. VEGETATION COMMUNITY   VEGETATION ABUNDANCE Individual species abundance (2 studies): Two replicated, randomized, paired, controlled studies in a wetland in the USA found that tussock sedge Carex stricta cover was typically similar across plots, after two growing seasons, whether sedges were planted into created mounds or hollows, or planted into flat ground. VEGETATION STRUCTURE Individual plant size (2 studies): Two replicated, randomized, paired, controlled studies in a wetland in the USA found that planting tussock sedges Carex stricta into created mounds or hollows had no significant effect on their individual biomass, after 1–2 growing seasons, when compared to planting into flat ground. OTHER Survival (2 studies): Two replicated, randomized, paired, controlled studies in a wetland in the USA found that planting tussock sedge Carex stricta into created mounds or hollows did not improve, and typically reduced, its survival rate compared to planting into flat ground. Survival was monitored after 1–2 growing seasons. Growth (2 studies): The same studies found that planting tussock sedge Carex stricta into created mounds or hollows typically had no significant effect on its growth rate, over 1–2 growing seasons, compared to planting into flat ground. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3286https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3286Sat, 10 Apr 2021 17:34:46 +0100Collected Evidence: Collected Evidence: Create mounds or hollows before planting non-woody plants: brackish/saline wetlands One study evaluated the effects, on vegetation, of creating mounds or hollows in brackish/saline wetlands before planting emergent, non-woody plants. The study was in the USA. VEGETATION COMMUNITY   VEGETATION ABUNDANCE Individual species abundance (1 study): One replicated, randomized, paired, controlled study in an estuarine salt marsh in the USA found that amongst plots sown/planted with dwarf saltwort Salicornia bigelovii, those that had been excavated into depressions had lower cover of dominant pickleweed Salicornia virginica – over the first growing season – than plots left at ground level. VEGETATION STRUCTURE   OTHER Germination/emergence (1 study): One replicated, randomized, paired, controlled study in an estuarine salt marsh in the USA found that there were no more (sometimes fewer) dwarf saltwort Salicornia bigelovii seedlings in excavated depressions than in level plots, two months after sowing saltwort seeds. Survival (1 study): The same study found that the survival rate of dwarf saltwort Salicornia bigelovii transplants was not greater (sometimes lower) in excavated depressions than in level plots. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3287https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3287Sat, 10 Apr 2021 17:34:58 +0100Collected Evidence: Collected Evidence: Create mounds or hollows before planting trees/shrubs: freshwater wetlands Three studies evaluated the effects, on vegetation, of creating mounds or hollows in freshwater wetlands before planting trees/shrubs. All three studies were in the USA. VEGETATION COMMUNITY Community composition (1 study): One replicated, site comparison study of 10-year-old restored/created freshwater wetlands in the USA reported that adding coarse woody debris to wetlands before planting trees/shrubs affected the composition of the ground vegetation layer, but not the tree layer. Overall richness/diversity (2 studies): Two studies in freshwater wetlands in the USA reported that creating mounds or hollows before planting trees/shrubs had no clear or significant effect on plant species richness and diversity 10–12 years later. In one of the studies, the same was true for bryophyte, herb and woody plants richness separately. VEGETATION ABUNDANCE   VEGETATION STRUCTURE Height (1 study): One replicated, paired, controlled study in created freshwater wetlands in the USA found that the average height of white cedar Thuja occidentalis saplings typically increased more, between two and five years after planting, in created mounds than on lower (occasionally flooded) ground. OTHER                                         Survival (1 study): One replicated, paired, controlled study in created freshwater wetlands in the USA found that white cedar Thuja occidentalis seedlings had higher survival rates when planted into created mounds than on lower (occasionally flooded) ground. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3288https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3288Sat, 10 Apr 2021 17:35:08 +0100Collected Evidence: Collected Evidence: Create mounds or hollows before planting trees/shrubs: brackish/saline wetlands One study evaluated the effects, on vegetation, of creating mounds or hollows in brackish/saline wetlands before planting trees/shrubs. The study was in Brazil. VEGETATION COMMUNITY   VEGETATION ABUNDANCE   VEGETATION STRUCTURE   OTHER Survival (1 study): One replicated, controlled study in a degraded coastal swamp in Brazil reported that planting tree seedlings into mounds had mixed effects on survival over three years, depending on the species. Growth (1 study): The same study reported that tree seedlings planted into mounds typically grew at a similar rate, over three years, to seedlings planted at ground level. Growth was measured in terms of diameter, height and canopy area. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3289https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3289Sat, 10 Apr 2021 17:35:23 +0100Collected Evidence: Collected Evidence: Bury surface soil/sediment (before planting)We found no studies that evaluated the effects, on vegetation, of burying surface soil/sediment before planting emergent marsh/swamp plants.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3291https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3291Sat, 10 Apr 2021 20:05:00 +0100Collected Evidence: Collected Evidence: Disturb soil/sediment surface before planting non-woody plants: freshwater wetlandsWe found no studies that evaluated the effects, on vegetation, of disturbing the surface of freshwater wetlands before planting emergent, non-woody plants.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3292https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3292Sun, 11 Apr 2021 07:56:39 +0100Collected Evidence: Collected Evidence: Disturb soil/sediment surface before planting non-woody plants: brackish/saline wetlands Two studies evaluated the effects, on vegetation, of disturbing the surface of brackish/saline wetlands before planting emergent, non-woody plants. Both studies were in the USA. VEGETATION COMMUNITY   VEGETATION ABUNDANCE Individual plant abundance (1 study): One study quantified the effect of this action on the abundance of individual plant species. The replicated, randomized, paired, controlled study in a salt marsh in the USA found that tilling sediment before planting California cordgrass Spartina foliosa had no significant effect on its biomass or density after two growing seasons, but did reduce its biomass after one growing season. VEGETATION STRUCTURE Height (1 study): One replicated, randomized, paired, controlled study in a salt marsh in the USA found that tilling sediment before planting California cordgrass Spartina foliosa had no significant effect on its height after 1–2 growing seasons. Individual plant size (1 study): One replicated, randomized, paired, controlled study on estuarine sediment in the USA found that the average size of planted salt marsh plants was similar, after 1–2 years, in tilled and untilled plots. Size was reported as an index incorporating plant height and lateral extent. OTHER Survival (1 study): One replicated, randomized, paired, controlled study on estuarine sediment in the USA found that survival rates of planted salt marsh plants were similar, over 1–2 years, in tilled and untilled plots. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3293https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3293Sun, 11 Apr 2021 07:56:47 +0100Collected Evidence: Collected Evidence: Disturb soil/sediment surface before planting trees/shrubs: freshwater wetlandsWe found no studies that evaluated the effects, on vegetation, of disturbing the surface of freshwater wetlands before planting trees/shrubs.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3294https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3294Sun, 11 Apr 2021 07:57:05 +0100Collected Evidence: Collected Evidence: Disturb soil/sediment surface before planting trees/shrubs: brackish/saline wetlands One study evaluated the effects, on vegetation, of disturbing the surface of brackish/saline wetlands before planting trees/shrubs. The study was in Australia. VEGETATION COMMUNITY   VEGETATION ABUNDANCE   VEGETATION STRUCTURE Height (1 study): One replicated, controlled study on an estuarine mudflat in Australia found that ploughing the substrate before planting grey mangrove Avicennia marina propagules had no significant effect on their height after two growing seasons. OTHER Survival (1 study): One replicated, controlled study on an estuarine mudflat in Australia found that ploughing the substrate before planting grey mangrove propagules had no significant effect on their survival over two growing seasons. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3295https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3295Sun, 11 Apr 2021 07:57:16 +0100Collected Evidence: Collected Evidence: Add upland topsoil before/after planting non-woody plants: freshwater wetlands Three studies evaluated the effects, on vegetation, of adding upland topsoil to freshwater wetlands planted with emergent, non-woody plants. Two studies were in the USA and one was in Canada. One study was in a greenhouse. VEGETATION COMMUNITY   VEGETATION ABUNDANCE Individual species abundance (1 study): One replicated, randomized, paired, controlled study in freshwater trenches in Canada found that adding a mixture of mineral soil and peat to pots of mine tailings before planting water sedge Carex aquatilis typically increased its above-ground biomass two growing seasons later. VEGETATION STRUCTURE Individual plant size (2 studies): One replicated, controlled study in a greenhouse in the USA found that mixing topsoil into pots of mineral soil/compost before planting tussock sedge Carex stricta seedlings typically increased the biomass and number of shoots they developed over three months. However, one replicated, paired, controlled study in a wet meadow restoration site in the USA reported that mixing topsoil into the mineral soil/compost substrate before planting tussock sedge seedlings had no clear effect on the number of shoots they developed over two months. OTHER Survival (1 study): One replicated, randomized, paired, controlled study in freshwater trenches in Canada found that adding a mixture of mineral soil and peat to pots of mine tailings either increased or had no significant effect on survival of planted water sedge Carex aquatilis over two growing seasons. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3296https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3296Sun, 11 Apr 2021 08:11:14 +0100Collected Evidence: Collected Evidence: Add upland topsoil before/after planting non-woody plants: brackish/saline wetlandsWe found no studies that evaluated the effects, on vegetation, of adding upland topsoil to brackish/saline wetlands planted with emergent, non-woody plants.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3297https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3297Sun, 11 Apr 2021 08:11:32 +0100Collected Evidence: Collected Evidence: Add upland topsoil before/after planting trees/shrubs: freshwater wetlandsWe found no studies that evaluated the effects, on vegetation, of adding upland topsoil to freshwater wetlands planted with trees/shrubs.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3298https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3298Sun, 11 Apr 2021 08:11:43 +0100Collected Evidence: Collected Evidence: Add upland topsoil before/after planting trees/shrubs: brackish/saline wetlandsWe found no studies that evaluated the effects, on vegetation, of adding upland topsoil to brackish/saline wetlands planted with trees/shrubs.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3299https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3299Sun, 11 Apr 2021 08:11:53 +0100Collected Evidence: Collected Evidence: Add lime or similar chemicals before/after planting non-woody plants: freshwater wetlandsWe found no studies that evaluated the effects, on vegetation, of adding neutralizing chemicals to freshwater wetlands planted with emergent, non-woody plants.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3300https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3300Sun, 11 Apr 2021 08:46:21 +0100Collected Evidence: Collected Evidence: Add lime or similar chemicals before/after planting non-woody plants: brackish/saline wetlands Three studies evaluated the effects, on vegetation, of adding neutralizing chemicals to brackish/saline wetlands planted with emergent, non-woody plants. Two studies were in Canada. One study was in the USA. One study was in a greenhouse. VEGETATION COMMUNITY   VEGETATION ABUNDANCE Characteristic plant abundance (1 study): One replicated, paired, controlled, before-and-after study in salt-contaminated bogs in Canada reported that liming reduced the above-ground biomass of planted salt marsh vegetation after one year. Individual species abundance (2 studies): One controlled study in former borrow pits in the USA found that limed and unlimed plots supported similar biomass of a planted herb species after 1–2 growing seasons. In contrast, one replicated, randomized, paired, controlled study in salt-contaminated peat in Canada found that limed pots supported lower biomass of two sown herb species than unlimed pots, after four months. VEGETATION STRUCTURE   OTHER Germination/emergence (1 study): One replicated, randomized, paired, controlled study in salt-contaminated peat in Canada found that for each of two sown herb species, germination rates were similar in limed and unlimed pots. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3301https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3301Sun, 11 Apr 2021 08:46:32 +0100Collected Evidence: Collected Evidence: Add lime or similar chemicals before/after planting trees/shrubs: freshwater wetlandsWe found no studies that evaluated the effects, on vegetation, of adding neutralizing chemicals to freshwater wetlands planted with trees/shrubs.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3302https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3302Sun, 11 Apr 2021 08:46:44 +0100Collected Evidence: Collected Evidence: Add lime or similar chemicals before/after planting trees/shrubs: brackish/saline wetlandsWe found no studies that evaluated the effects, on vegetation, of adding neutralizing chemicals to brackish/saline wetlands planted with trees/shrubs.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3303https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3303Sun, 11 Apr 2021 08:46:55 +0100Collected Evidence: Collected Evidence: Add inorganic fertilizer before/after planting non-woody plants: freshwater wetlands Four studies evaluated the effects, on vegetation, of adding inorganic fertilizer to freshwater wetlands planted with emergent, non-woody plants. Two studies were in the USA, one was in the Netherlands and one was in Ireland. One of the studies in the USA was in a greenhouse. VEGETATION COMMUNITY   VEGETATION ABUNDANCE Individual species abundance (1 study): One replicated, paired, controlled study of lakeshores planted with bulrushes Scirpus spp. in the Netherlands found that fertilized and unfertilized plots contained a similar amount (density and biomass) of each bulrush species over three growing seasons. VEGETATION STRUCTURE Individual plant size (2 studies): Two replicated, controlled studies (one also paired) in the USA found that adding fertilizer to mineral soil increased the biomass and/or number of shoots of tussock sedge Carex stricta seedlings, 2–3 months after planting. However, in both studies, adding fertilizer had no significant or clear effect on sedge size in plots amended with compost and/or topsoil. OTHER Growth (1 study): One replicated, paired, controlled, before-and-after study in tubs of mining waste in Ireland found that adding fertilizer increased growth of planted sweetgrass Glyceria fluitans in one case but had no significant effect in another. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3304https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3304Sun, 11 Apr 2021 08:57:08 +0100Collected Evidence: Collected Evidence: Add inorganic fertilizer before/after planting non-woody plants: brackish/saline wetlands Seven studies evaluated the effects, on vegetation, of adding inorganic fertilizer to brackish/saline wetlands planted with emergent, non-woody plants. Four studies were in the USA. Two of these were based in the same marsh, but used different experimental set-ups. Two studies were in Canada. One study was in China. VEGETATION COMMUNITY   VEGETATION ABUNDANCE Overall abundance (2 studies): One replicated, randomized, paired, controlled study in intertidal brackish marshes in Canada found that adding fertilizer when planting wetland herbs typically had no significant effect on total live vegetation biomass, after two growing seasons. One replicated, paired, controlled, before-and-after study in salt-contaminated bogs in Canada found that overall vegetation biomass and cover were greater in fertilized than unfertilized plots, one year after introducing salt marsh vegetation. Individual species abundance (6 studies): Six studies quantified the effect of this action on the abundance of individual plant species. For example, three replicated, randomized, paired, controlled studies in intertidal areas in the USA found that the abundance of cordgrasses Spartina spp. was typically similar in fertilized and unfertilized plots, 1–2 growing seasons after planting. This was true for density, biomass and/or cover. However, one controlled study on former borrow pits in the USA found that cordgrass Spartina spp. biomass was typically greater in fertilized than unfertilized plots, one growing season after planting. This study also found that fertilization typically reduced black rush Juncus roemarianus biomass, one growing season after planting. VEGETATION STRUCTURE Height (6 studies): Five replicated, controlled studies (four also paired, three also randomized) in brackish/saline wetlands in the USA, China and Canada found that adding fertilizer had no significant effect on the height of planted/sown wetland herbs after 1–2 growing seasons. One controlled study on former borrow pits in the USA found that fertilized smooth cordgrass Spartina alterniflora was taller than unfertilized smooth cordgrass, two growing seasons after planting. OTHER Survival (4 studies): Three replicated, randomized, paired, controlled studies in intertidal areas in the USA and Canada found that adding fertilizer had no significant effect on the survival of planted wetland herbs over 1–2 growing seasons. One controlled study on former borrow pits in the USA reported that adding standard fertilizer to planting holes reduced the survival of planted big cordgrass Spartina cynosuroides, after one growing season. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3305https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3305Sun, 11 Apr 2021 08:57:23 +0100Collected Evidence: Collected Evidence: Add inorganic fertilizer before/after planting trees/shrubs: freshwater wetlands Two studies evaluated the effects, on vegetation, of adding inorganic fertilizer to freshwater wetlands planted with trees/shrubs. Both studies were in the USA. VEGETATION COMMUNITY                  VEGETATION ABUNDANCE   VEGETATION STRUCTURE Height (1 study): One replicated, paired, controlled study in the USA found that adding fertilizer had no significant effect, after two years, on the height of tree saplings planted into floating peat bags. Diameter, perimeter, area (1 study): The same study found that adding fertilizer had no significant effect, after two years, on the diameter of two of three tree species planted into floating peat bags. However, fertilized pond apple Annona glabra saplings had thicker stems than unfertilized saplings. OTHER Growth (1 study): One replicated, randomized, controlled study in the USA found that adding fertilizer increased the growth rate of baldcypress Taxodium distichum seedlings planted into a marsh. This was true for both diameter and height growth. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3306https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3306Sun, 11 Apr 2021 08:57:33 +0100Collected Evidence: Collected Evidence: Add inorganic fertilizer before/after planting trees/shrubs: brackish/saline wetlandsWe found no studies that evaluated the effects, on vegetation, of adding inorganic fertilizer to brackish/saline wetlands planted with trees/shrubs.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3307https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3307Sun, 11 Apr 2021 08:57:43 +0100Collected Evidence: Collected Evidence: Add surface mulch before/after planting non-woody plants: freshwater wetlands One study evaluated the effects, on vegetation, of mulching freshwater wetlands planted with emergent, non-woody plants. The study was in Australia. VEGETATION COMMUNITY   VEGETATION ABUNDANCE Herb abundance (1 study): One replicated, randomized, paired, controlled study in floodplain swamps in Australia found that mulching with woodchips before planting native understory herbs either increased or had no significant effect on their overall cover, one year later. Individual species abundance (1 study): The same study found that mulching with woodchips before planting native understory herbs reduced the cover of one problematic species (common reed Phragmites australis) one year later, but had no significant effect on another (reed canarygrass Phalaris arundinacea). VEGETATION STRUCTURECollected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3312https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3312Sun, 11 Apr 2021 12:05:44 +0100Collected Evidence: Collected Evidence: Add surface mulch before/after planting non-woody plants: brackish/saline wetlands One study evaluated the effects, on vegetation, of mulching brackish/saline wetlands planted with emergent, non-woody plants. The study was in Canada. VEGETATION COMMUNITY   VEGETATION ABUNDANCE Overall abundance (1 study): One replicated, randomized, paired, controlled study in intertidal brackish marshes in Canada found that adding surface mulch after planting wetland herbs typically had no significant effect on total live vegetation biomass, two growing seasons later. Individual species abundance (1 study): The same study found that adding surface mulch increased the cover of one of two planted herb species (creeping alkaligrass Puccinellia phryganodes) but had no significant effect on cover of the other species (estuary sedge Carex subspathacea). Cover was monitored over the second growing season after planting/mulching. VEGETATION STRUCTURE   OTHER Survival (1 study): One replicated, randomized, paired, controlled study in intertidal brackish marshes in Canada found that adding surface mulch had no significant effect on the survival of two of two planted herb species, after two growing seasons. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3313https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3313Sun, 11 Apr 2021 12:05:55 +0100Collected Evidence: Collected Evidence: Add surface mulch before/after planting trees/shrubs: freshwater wetlands One study evaluated the effects, on vegetation, of mulching freshwater wetlands planted with trees/shrubs. The study was in Australia. VEGETATION COMMUNITY   VEGETATION ABUNDANCE Tree/shrub abundance (1 study): One replicated, randomized, paired, controlled study in floodplain swamps in Australia found that mulching with woodchips before planting native shrubs had no significant effect on their overall cover, one year later. Individual species abundance (1 study): The same study found that mulching with woodchips before planting swamp gum Eucalyptus camphora seedlings had no significant effect on swamp gum cover, one year later. Mulching reduced cover of the problematic herb species in one of two swamps, but had no significant effect in the other. VEGETATION STRUCTURE Height (1 study): One replicated, randomized, paired, controlled study in floodplain swamps in Australia found that planted swamp gum Eucalyptus camphora seedlings reached a similar height, after one year, in mulched and unmulched plots. Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3314https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3314Sun, 11 Apr 2021 12:06:05 +0100Collected Evidence: Collected Evidence: Add surface mulch before/after planting trees/shrubs: brackish/saline wetlandsWe found no studies that evaluated the effects, on vegetation, of mulching brackish/saline wetlands planted with trees/shrubs.   ‘We found no studies’ means that we have not yet found any studies that have directly evaluated this action during our systematic journal and report searches. Therefore we have been unable to assess whether or not the action is effective or has any harmful impacts. Please get in touch if you know of such a study for this action.Collected Evidencehttps%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3315https%3A%2F%2Fconservationevidencejournal.com%2Factions%2F3315Sun, 11 Apr 2021 12:06:27 +0100
What Works 2021 cover

What Works in Conservation

What Works in Conservation provides expert assessments of the effectiveness of actions, based on summarised evidence, in synopses. Subjects covered so far include amphibians, birds, mammals, forests, peatland and control of freshwater invasive species. More are in progress.

More about What Works in Conservation

Download free PDF or purchase
The Conservation Evidence Journal

The Conservation Evidence Journal

An online, free to publish in, open-access journal publishing results from research and projects that test the effectiveness of conservation actions.

Read the latest volume: Volume 21

Go to the CE Journal

Discover more on our blog

Our blog contains the latest news and updates from the Conservation Evidence team, the Conservation Evidence Journal, and our global partners in evidence-based conservation.

Who uses Conservation Evidence?

Meet some of the evidence champions

Endangered Landscape ProgrammeRed List Champion - Arc Kent Wildlife Trust The Rufford Foundation Save the Frogs - Ghana Mauritian Wildlife Supporting Conservation Leaders
Sustainability Dashboard National Biodiversity Network Frog Life The international journey of Conservation - Oryx Cool Farm Alliance UNEP AWFA Bat Conservation InternationalPeople trust for endangered species Vincet Wildlife Trust
For a full list of, and information about, our champions:
All Evidence Champions
About our champions, why and how to become one:
Become an Evidence Champion

This website uses Cookies

We use limited Cookies to run the site and to analyse our traffic (none for site vendors). By using this site, you will be providing your consent to our use of Cookies.

Accept & continue