CN109717010A - A kind of gently degraded Calamagrostis angustifolia method for recovering vegetation based on urea - Google Patents

A kind of gently degraded Calamagrostis angustifolia method for recovering vegetation based on urea Download PDF

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Publication number
CN109717010A
CN109717010A CN201910146320.0A CN201910146320A CN109717010A CN 109717010 A CN109717010 A CN 109717010A CN 201910146320 A CN201910146320 A CN 201910146320A CN 109717010 A CN109717010 A CN 109717010A
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China
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calamagrostis angustifolia
angustifolia
soil
calamagrostis
urea
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CN201910146320.0A
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Inventor
刘赢男
曹宏杰
王继丰
徐明怡
柴春荣
付晓宇
付晓玲
倪红伟
沙威
孙大昭
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Institute Of Nature And Ecology Heilongjiang Academy Of Sciences
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Institute Of Nature And Ecology Heilongjiang Academy Of Sciences
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Abstract

The present invention provides a kind of gently degraded Calamagrostis angustifolia method for recovering vegetation based on urea.Calamagrostis angustifolia degree of degeneration is measured using the cover degree index of dominant species in Schima superba, slight degeneration Calamagrostis angustifolia is the cover degree of sociales 50%~70%, gently degraded Calamagrostis angustifolia is the cover degree of sociales 30%~50%, and heavy-degraded Calamagrostis angustifolia is the cover degree of sociales 10%~30%;Degeneration Calamagrostis angustifolia Soil Nitrogen restriction factor determines that nitrogen restriction factor is measured using soil N:P, and the specific operation method is as follows, first measurement Calamagrostis angustifolia total soil nitrogen, content of tatal phosphorus;Secondly, being calculated according to total soil nitrogen, content of tatal phosphorus, as soil N:P < 14, illustrate that the wetland is limited by N, shows that the Nitrogen in Wetland lacks;In mid or late May and mid or late June;The fertilising frequency, 2 times;Dose is administered by 5.0~8.0kg per acre every time;Fertilizer, urea;Guarantee that soil moisture content is 10~15% after fertilising, is dissolved convenient for fertilizer.

Description

A kind of gently degraded Calamagrostis angustifolia method for recovering vegetation based on urea
Technical field
The present invention relates to a kind of gently degraded Calamagrostis angustifolia method for recovering vegetation based on urea, it is extensive to belong to muskeg Compound law technology field.
Background technique
Wetland is the unique ecological system that reciprocity between lake and land is formed on the earth, is the life of the most rich bio-diversity of nature One of state landscape and the most important living environment of the mankind in store flood-water for use in a drought, regulate the climate, control the soil erosion, created land with silt, drop Solution environmental pollution etc. plays an important role.The Northeast is as Wetlands Study Progress In China area the most abundant One, have the characteristics that area is big, type is more, position is important, rich biodiversity, is that the important world of Northeast Asia migratory bird is migrated The breeding spot and.But Wetlands In Northeast China large area is caused to lose and degenerate with mankind's activities such as ejectment water due to opening up wasteland.According to investigations, Nearly 25 years, wetland, Sanjiang Plain lost 71%, and song-Nen plain loses 23%.Existing wetland nearly 72% is threatened by the different factors, Ecological functions decline.
Wetland recovery mode includes spontaneous recovery and two class of artificial restoration.The wetland recovery engineering that China carries out at present Substantially it is emphasised that spontaneous recovery under the conditions of human intervention.Restoration methods can be divided into Wetland Substrate restore, hydrologic process it is extensive Multiple, water environmental management, wetland ecotourism and Habitat pattern etc..But according to Wetland Type, recovery target and degree of degeneration Difference, wetland recovery measure are also different.Currently, Wetlands In Northeast China restores mostly based on moisturizing, technological means is single extensive, needle Poor to property, recovery effects are not good enough.Lack for different Different Types of Wetland Vegetations features, in conjunction with degraded wetland recovery key factor Specific aim muskeg restoration methods.Especially Calamagrostis angustifolia, as one of most representative Wetland Type in the Northeast, Still shortcoming mature applicable technology for recovering vegetation and method.
Summary of the invention
The purpose of the present invention is to solve the above-mentioned problems of the prior art, and then provide a kind of based in urea Spend degeneration Calamagrostis angustifolia method for recovering vegetation.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of gently degraded Calamagrostis angustifolia method for recovering vegetation based on urea,
Step 1: Calamagrostis angustifolia Diagnosis of degradation degree, measures Calamagrostis angustifolia using the cover degree index of dominant species in Schima superba Degree of degeneration, slight degeneration Calamagrostis angustifolia are the cover degree of sociales 50%~70%, and gently degraded Calamagrostis angustifolia is excellent For the cover degree of gesture kind 30%~50%, heavy-degraded Calamagrostis angustifolia is the cover degree of sociales 10%~30%;
Step 2: degeneration Calamagrostis angustifolia Soil Nitrogen restriction factor determines, nitrogen restriction factor is measured using soil N:P, tool Body operating method is as follows, first measurement Calamagrostis angustifolia total soil nitrogen, content of tatal phosphorus;Secondly, according to total soil nitrogen, content of tatal phosphorus Calculated, as soil N:P < 14, illustrate that the wetland is limited by N, shows that the Nitrogen in Wetland lacks;
Step 3: determining objective for implementation, i.e. gently degraded Calamagrostis angustifolia according to step 1 and step 2;
Step 4: fertilising, fertilization time, in mid or late May and mid or late June;The fertilising frequency, 2 times;Dose, every time It is administered by 5.0~8.0kg per acre;Fertilizer, urea;Fertilization mode manually sprinkles sowing;Other are required, and guarantee soil after fertilising Moisture content is 10~15%, is dissolved convenient for fertilizer;
Step 5: later maintenance management, pays attention to moisturizing without rainfall for a long time after fertilising, guarantee the dissolution of fertilizer.
Outstanding feature of the invention is to carry out revegetation by applying urea for gently degraded Calamagrostis angustifolia, significantly Improve Deyeuxia Angustifolia Population dominance, hence it is evident that change the structure and composition of phytobiocoenose, ecosystem function is obviously improved, and is planted It is significantly improved by cover degree and biomass.2016, carry out experiment in the Honghe Natural Reserve of Heilungkiang, tests area 2 hectares, 2017 and 2018 continuous monitoring results show to improve 20% compared with degraded wetland (control) vegetation coverage~ 30%, vegetation productivity improves 20% or more, and annual plant quantity significantly reduces in vegetation and plant species composition, and the present invention It is easy to operate, applicability is wide, government, enterprises and institutions can bear, and can obviously improve region environment, raw to maintenance area State safety, swamp protection species diversity etc. are of great significance, while can provide for regional economy and social development solid Guarantee Of Environment.The present invention can be used for the revegetation of the Northeast's gently degraded Calamagrostis angustifolia.
Specific embodiment
The present invention is described in further detail below: the present embodiment under the premise of the technical scheme of the present invention into Row is implemented, and gives detailed embodiment, but protection scope of the present invention is not limited to following embodiments.
Embodiment 1
A kind of gently degraded Calamagrostis angustifolia method for recovering vegetation based on urea, steps are as follows:
Step 1: Calamagrostis angustifolia Diagnosis of degradation degree.It is measured using the cover degree index of dominant species in Schima superba (Deyeuxia angustifolia) small Leaf chapter wetlands degradation degree, slight degeneration Calamagrostis angustifolia are the cover degree of sociales 50%~70%, gently degraded Deyeuxia angustifolia Wetland is the cover degree of sociales 30%~50%, and heavy-degraded Calamagrostis angustifolia is the cover degree of sociales 10%~30%.
Step 2: degeneration Calamagrostis angustifolia Soil Nitrogen restriction factor determines.Nitrogen restriction factor is measured using soil N:P.Tool Body operating method is as follows, first measurement Calamagrostis angustifolia soil (0~20cm of depth) full nitrogen, content of tatal phosphorus;Secondly, according to soil Full nitrogen, content of tatal phosphorus are calculated, and as soil N:P < 14, illustrate that the wetland is limited by N, show that the Nitrogen in Wetland lacks.
Step 3: determining the objective for implementation of the present embodiment, i.e. gently degraded Calamagrostis angustifolia according to step 1 and step 2 (cover degree of Calamagrostis angustifolia vegetation sociales is 30%~50%, and is limited by Soil Nitrogen, i.e. soil N:P < 14).
Step 4: fertilising.Fertilization time, in mid or late May and mid or late June;The fertilising frequency, 2 times;Dose, every time It is administered by 5.0~8.0kg per acre;Fertilizer, urea;Fertilization mode manually sprinkles sowing;Other are required, and guarantee soil after fertilising Moisture content is 10~15%, is dissolved convenient for fertilizer.
Step 5: later maintenance management, pays attention to moisturizing without rainfall for a long time after fertilising, guarantee the dissolution of fertilizer.
Embodiment 2
A kind of gently degraded Calamagrostis angustifolia method for recovering vegetation based on urea, steps are as follows:
Step 1: Calamagrostis angustifolia Diagnosis of degradation degree.It is measured using the cover degree index of dominant species in Schima superba (Deyeuxia angustifolia) small Leaf chapter wetlands degradation degree, slight degeneration Calamagrostis angustifolia are the cover degree of sociales 50%~70%, gently degraded Deyeuxia angustifolia Wetland is the cover degree of sociales 30%~50%, and heavy-degraded Calamagrostis angustifolia is the cover degree of sociales 10%~30%.
Step 2: degeneration Calamagrostis angustifolia Soil Nitrogen restriction factor determines.Nitrogen restriction factor is measured using soil N:P.Tool Body operating method is as follows, first measurement Calamagrostis angustifolia soil (0~20cm of depth) full nitrogen, content of tatal phosphorus;Secondly, according to soil Full nitrogen, content of tatal phosphorus are calculated, and as soil N:P < 14, illustrate that the wetland is limited by N, show that the Nitrogen in Wetland lacks.
Step 3: determining the objective for implementation of the present embodiment, i.e. gently degraded Calamagrostis angustifolia according to step 1 and step 2 (cover degree of Calamagrostis angustifolia vegetation sociales is 30%~50%, and is limited by Soil Nitrogen, i.e. soil N:P < 14).
Step 4: fertilising.Fertilization time, in mid-May and mid-June;The fertilising frequency, 2 times;Dose, every time by every Mu 6.3kg is administered;Fertilizer, urea;Fertilization mode manually sprinkles sowing;Other are required, and guarantee that soil moisture content is 10 after fertilising ~15%, it is dissolved convenient for fertilizer.
Step 5: later maintenance management, pays attention to moisturizing without rainfall for a long time after fertilising, guarantee the dissolution of fertilizer.
Embodiment 3
A kind of gently degraded Calamagrostis angustifolia method for recovering vegetation based on urea, steps are as follows:
Step 1: Calamagrostis angustifolia Diagnosis of degradation degree.It is measured using the cover degree index of dominant species in Schima superba (Deyeuxia angustifolia) small Leaf chapter wetlands degradation degree, slight degeneration Calamagrostis angustifolia are the cover degree of sociales 50%~70%, gently degraded Deyeuxia angustifolia Wetland is the cover degree of sociales 30%~50%, and heavy-degraded Calamagrostis angustifolia is the cover degree of sociales 10%~30%.
Step 2: degeneration Calamagrostis angustifolia Soil Nitrogen restriction factor determines.Nitrogen restriction factor is measured using soil N:P.Tool Body operating method is as follows, first measurement Calamagrostis angustifolia soil (0~20cm of depth) full nitrogen, content of tatal phosphorus;Secondly, according to soil Full nitrogen, content of tatal phosphorus are calculated, and as soil N:P < 14, illustrate that the wetland is limited by N, show that the Nitrogen in Wetland lacks.
Step 3: determining the objective for implementation of the present embodiment, i.e. gently degraded Calamagrostis angustifolia according to step 1 and step 2 (cover degree of Calamagrostis angustifolia vegetation sociales is 30%~50%, and is limited by Soil Nitrogen, i.e. soil N:P < 14).
Step 4: fertilising.Fertilization time, in late May and mid-June;The fertilising frequency, 2 times;Dose, every time by every Mu 7.2kg is administered;Fertilizer, urea;Fertilization mode manually sprinkles sowing;Other are required, and guarantee that soil moisture content is 10 after fertilising ~15%, it is dissolved convenient for fertilizer.
Step 5: later maintenance management, pays attention to moisturizing without rainfall for a long time after fertilising, guarantee the dissolution of fertilizer.
Embodiment 4
A kind of gently degraded Calamagrostis angustifolia method for recovering vegetation based on urea, steps are as follows:
Step 1: Calamagrostis angustifolia Diagnosis of degradation degree.It is measured using the cover degree index of dominant species in Schima superba (Deyeuxia angustifolia) small Leaf chapter wetlands degradation degree, slight degeneration Calamagrostis angustifolia are the cover degree of sociales 50%~70%, gently degraded Deyeuxia angustifolia Wetland is the cover degree of sociales 30%~50%, and heavy-degraded Calamagrostis angustifolia is the cover degree of sociales 10%~30%.
Step 2: degeneration Calamagrostis angustifolia Soil Nitrogen restriction factor determines.Nitrogen restriction factor is measured using soil N:P.Tool Body operating method is as follows, first measurement Calamagrostis angustifolia soil (0~20cm of depth) full nitrogen, content of tatal phosphorus;Secondly, according to soil Full nitrogen, content of tatal phosphorus are calculated, and as soil N:P < 14, illustrate that the wetland is limited by N, show that the Nitrogen in Wetland lacks.
Step 3: determining the objective for implementation of the present embodiment, i.e. gently degraded Calamagrostis angustifolia according to step 1 and step 2 (cover degree of Calamagrostis angustifolia vegetation sociales is 30%~50%, and is limited by Soil Nitrogen, i.e. soil N:P < 14).
Step 4: fertilising.Fertilization time, in late May and late June;The fertilising frequency, 2 times;Dose, every time by every Mu 7.8kg is administered;Fertilizer, urea;Fertilization mode manually sprinkles sowing;Other are required, and guarantee that soil moisture content is 10 after fertilising ~15%, it is dissolved convenient for fertilizer.
Step 5: later maintenance management, pays attention to moisturizing without rainfall for a long time after fertilising, guarantee the dissolution of fertilizer.
The foregoing is only a preferred embodiment of the present invention, these specific embodiments are all based on the present invention Different implementations under general idea, and scope of protection of the present invention is not limited thereto, it is any to be familiar with the art Technical staff in the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of, should all cover of the invention Within protection scope.Therefore, the scope of protection of the invention shall be subject to the scope of protection specified in the patent claim.

Claims (4)

1. a kind of gently degraded Calamagrostis angustifolia method for recovering vegetation based on urea, which is characterized in that
Step 1: Calamagrostis angustifolia Diagnosis of degradation degree, measures Calamagrostis angustifolia using the cover degree index of dominant species in Schima superba and degenerates Degree, slight degeneration Calamagrostis angustifolia are the cover degree of sociales 50%~70%, and gently degraded Calamagrostis angustifolia is sociales Cover degree 30%~50%, heavy-degraded Calamagrostis angustifolia is the cover degree of sociales 10%~30%;
Step 2: degeneration Calamagrostis angustifolia Soil Nitrogen restriction factor determines, nitrogen restriction factor is measured using soil N:P, specific to grasp It is as follows to make method, first measurement Calamagrostis angustifolia total soil nitrogen, content of tatal phosphorus;Secondly, being carried out according to total soil nitrogen, content of tatal phosphorus Measuring and calculating, as soil N:P < 14, illustrates that the wetland is limited by N, shows that the Nitrogen in Wetland lacks;
Step 3: determining objective for implementation, i.e. gently degraded Calamagrostis angustifolia according to step 1 and step 2;
Step 4: fertilising, fertilization time, in mid or late May and mid or late June;The fertilising frequency, 2 times;Dose, every time by every 5.0~8.0kg of mu is administered;Fertilizer, urea;Fertilization mode manually sprinkles sowing;Other are required, and guarantee soil water-containing after fertilising Rate is 10~15%, is dissolved convenient for fertilizer;
Step 5: later maintenance management, pays attention to moisturizing without rainfall for a long time after fertilising, guarantee the dissolution of fertilizer.
2. the gently degraded Calamagrostis angustifolia method for recovering vegetation according to claim 1 based on urea, which is characterized in that In step 4, dose is administered by 6.3kg per acre every time.
3. the gently degraded Calamagrostis angustifolia method for recovering vegetation according to claim 1 based on urea, which is characterized in that In step 4, dose is administered by 7.2kg per acre every time.
4. the gently degraded Calamagrostis angustifolia method for recovering vegetation according to claim 1 based on urea, which is characterized in that In step 4, dose is administered by 7.8kg per acre every time.
CN201910146320.0A 2019-02-27 2019-02-27 A kind of gently degraded Calamagrostis angustifolia method for recovering vegetation based on urea Pending CN109717010A (en)

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