Method for planting suaeda heteroptera in silty tidal beach
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A technology of Suaeda salsa and silt, applied in the field of vegetation restoration, can solve the problems that soil preparation and sowing measures are not suitable for muddy tidal flats, lack of pertinence and operability, and seeds are easily taken away by tides, so as to increase the planting rate and overcome disadvantages Influence and reduce the effect of planting cost
Inactive Publication Date: 2014-02-12
LIAONING OCEAN & FISHERIES SCI RES INST
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[0003] Chinese patent application No. 97106197.1 describes the artificial cultivation method of wild Suaeda salsa, which refers to the artificial cultivation of Suaeda salsa and salt-tolerant plants in saline-alkali land, but it is mainly used in the agricultural utilization of saline-alkali environment to harvest vegetable oil. The mentioned soil preparation and seeding measures are not suitable for muddy tidal flats
Chinese patent application number is the Suaeda salsa cultivation method that 200810017113.7 proposes, is only applicable to the saline-alkali environment of strong wind desert, and its sowing time is September-November, and this method is used for estuary wetland, coastal intertidal zone and has following shortcoming: (1) in Under the effect of tide, the seeds are easily carried away by the tide
(2) After sowing in September-November, the seeds are easy to germinate in the wet tidal flats, and the germinated seedlings cannot survive the winter
The Chinese patent application number is 201110195722.3, which is a drip irrigation method for planting Suaeda salsa in heavy saline-alkaline land in arid areas. This method proposes laying irrigation facilities and a "one tube, one row" drill method, which is applied to muddy tidal flats under the action of tides, which lacks pertinence and Operability
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Embodiment 1
[0010] In early May 2011, Daling Estuary Wetland, no vegetation, estuary sedimentary facies, muddy tidal flat, tide type is irregular semi-diurnal tide, average high tide level 3.72m, average low tide level 0.38m, average tidal range 2.40m, maximum The tidal range is 5.06m, the average high tide lasts 6h04min, and the average low tide lasts 6h23min. Demonstration application of 230 acres.
[0011] Planting of Suaeda salsa: 20kg of Suaeda salsa seeds, 18±1℃, add the same amount of fresh water to soak for 21 hours, until the seeds open; add 80kg of water, 25kg of clay, and stir evenly; when the tide is low, evenly sprinkle the seeds after hanging mud on the tidal flat.
[0012] After 1 week, it was measured that the seed germination rate was 85%, and the seedling colonization rate was 70%. In early October, the plant density measured on site was 360 plants / m 2 , biomass 720g / m 2 , the coverage is 91%.
Embodiment 2
[0014] In mid-April 2011, Xiaoling River estuary coastal intertidal zone, no vegetation, muddy tidal flat, tide type is irregular semi-diurnal tide, average high tide level 3.72m, average low tide level 0.38m, average tidal range 2.40m, maximum tide The difference is 5.06m, the average high tide lasts 6h04min, and the average low tide lasts 6h23min. Demonstration application of 200 acres.
[0015] Planting of Suaeda salsa: 16kg of Suaeda salsa seeds, 17±1℃, add the same amount of fresh water to soak for 23 hours, until the seeds open, add 50kg of water, 20kg of clay silt, and stir evenly; on the beach.
[0016] After 1 week, it was measured that the seed germination rate was 89%, and the seedling colonization rate was 73%. In mid-October, the field survey measured the plant density of Suaeda salsa to be 367 plants / m 2 , average biomass 786g / m 2 , the coverage is 95%.
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Abstract
The invention relates to restoration technology for salt-tolerant vegetation of estuarine wetlands and coastal tidal beaches, in particular to a method for planting suaeda heteroptera in a tidal environment. The method specifically includes at 15-20 DEG C, adding fresh water in suaeda heteroptera seeds according to a weight ratio of 1:3-1:5 for soaking for 20-25h until the seeds open mouths; adding clay or clayey slit in the seeds after being soaked according to a weight ratio of 1:1-1:5, wherein grain size ranges from 0.001mm to 0.03mm, and uniformly stirring; selecting March-June, during ebb tide, splashing the seeds hanging mud on the tidal beaches, wherein seeding quantity is 0.5-1.0kg / hm2. Seed germination is promoted through fresh water soaking, so that germination percentage of the suaeda heteroptera seeds is increased; the soaked seeds are sowed after mud hanging, so that the suaeda heteroptera seeds are enabled to be quickly pasted on the surfaces of the wetlands and the tidal beaches and covered by the clay or clayey slit, the suaeda heteroptera seeds are avoided from being brought away by high wind and tide water, planting rate of seedlings is increased, and utilization efficiency of the seeds is improved. By the method, unfavorable effect, of the tidal environment, on suaeda heteroptera planting is overcome, and technical reserve is provided for suaeda heteroptera vegetation restoration and ecological environment improvement of the estuarine wetlands and the coastal tidal beaches.
Description
[0001] Technical field: the invention belongs to the field of vegetation restoration, and relates to a method for planting Suaeda salsa in muddy tidal flats. Background technique: [0002] Suaeda heteroptera Kitag is a 1-year-old salt marsh plant belonging to the genus Suaeda heteroptera. Widely distributed in estuary wetlands and coastal tidal flats in northern my country. The "red beach" natural landscape is formed every autumn. The Suaeda salsa wetland plays an important role in the prevention and control of soil erosion and pollutant removal, and can also provide habitat for endangered rare birds. In recent years, due to many factors, the Suaeda salsa community in estuary wetlands and coastal tidal flats has degraded or even disappeared, resulting in the loss of some ecological service functions in coastal wetlands. At present, there are some planting techniques of Suaeda salsa or salt-tolerant plants in China, but there is a lack of planting techniques of Suaeda salsa fo...
Claims
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