Method for building near-natural vegetation on tropical coral reef
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A technology of natural vegetation and coral, applied in the field of building near-natural vegetation on tropical coral reefs, can solve the problems such as greening of coral reefs that have not been used, and achieve the effect of low maintenance cost, good effect and high survival rate
Active Publication Date: 2017-12-26
SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI +1
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Embodiment 1
[0033] Location: On a coral reef in Hainan Province:
[0035] 2. Planting space: plant 2 rows of thick vines at the seaside first, and then plant Pittonia chinensis inward, and plant thick vines around Pittonia cassia, and embellish them with river vines.
[0036] 3. Digging holes and putting base fertilizer: The planting method of plants is to dig planting holes first. The planting holes are conical, the diameter of the conical surface is 30cm, the height is 30cm, and the distance between seedlings is about 30cm×30cm. (The amount is 2 / 3 of the volume of the nutrient bag of the planted seedlings in the bag, and the mass ratio of the farm base manure to coconut bran is 1:1), and then put 5g / plant of water-retaining agent.
[0037] 4. Planting and fertilization: Soak the plant bag seedlings in water (bubbles, no water can be pinched by hand), cut the bag with scissors, put the plant bag seedling...
Embodiment 2
[0039] Example 2: Pittosporum pratense, Achilles vine and Hyena thorn
[0040] The difference from Example 1 is that the vine vine is replaced by thorns. In this embodiment, the combination of 1 shrub, 1 grass and 1 vine is adopted. There are few species, the landscape is slightly monotonous, most of them can survive, and the vegetation coverage rate is not high enough.
Embodiment 3
[0041] Embodiment 3: Pittosporum pratense, Prattonia chinensis and vine
[0042] The difference from Example 1 is that the thick vine is replaced by sea bean. In this embodiment, the combination of 1 shrub, 1 grass and 1 vine is adopted. There are few species, the landscape is slightly monotonous, most of them can survive, and the vegetation coverage rate is not high enough.
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Abstract
The invention discloses a method for building near-natural vegetation on a tropical coral reef. According to the invention, six indigenous plants (including three types of shrub, grass and vine, and nitrogen-fixing leguminous plants) like Scaevola sericea, Canavalia maritima, Ipomoea pes-caprae, Vitex trifolia Linn var simplicifolia Clam, Phyla nodiflora and Spinifex littoreus applicable to being planted in the tropical coral reef are selected according to harsh environmental conditions of coral reefs and on the basis of preliminary investigation and research on vegetation and soil in South China Sea Islands; meanwhile, referring to plantation of natural coastal plants in Paracel Islands, and through the optimal combination of a series of processes of digging planting holes, placing farmyard base manure and coconut bran, applying a water-retaining agent, soaking bagged seedlings in water, applying a compound fertilizer, applying a little amount of iron sulfide or iron-aluminum oxides (adjusting a pH value), adding dry duckweed (increasing a C source), backfilling sand or foreign soil, performing maintenance, etc., the survival rate of the plants reaches 90% or above after about 2 months; thus, green plants can be basically covered; near-natural vegetation is formed; certain functions of preventing wind and fixing sand are exerted; meanwhile, maintenance is relatively simple.
Description
Technical field: [0001] The invention belongs to the field of coral reef vegetation restoration, and in particular relates to a method for constructing near-natural vegetation on tropical coral reefs. Background technique: [0002] Coral islands and reefs refer to artificial or natural coral islands (reefs) (including bare beaches) filled by coral reef sand in the sea. This type of coral reef lacks real soil and fertility (organic matter content is only about 0.15%, total N and P content is only about 0.02%), and has high salinity (salt content>3‰), strong alkali (pH value>9.0) , high temperature, strong light, drought (0-30cm water content is about 5%) and other extreme environmental characteristics, poor stability and water retention, which is equivalent to an extremely degraded ecosystem. It is extremely difficult for common plants to survive and settle on coral reefs. [0003] The key technical issues to be solved in the method of constructing coral reefs close t...
Claims
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IPC IPC(8): A01B79/02A01G1/00A01G17/00C05G1/00
CPCA01B79/02A01G17/005C05F5/002C05F9/00
Inventor 任海简曙光张倩媚王俊石守侠唐军务刘锦红沈彤
Owner SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
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