CN107135859A - A kind of method that use degradable device protects robur seedling - Google Patents

A kind of method that use degradable device protects robur seedling Download PDF

Info

Publication number
CN107135859A
CN107135859A CN201710253119.3A CN201710253119A CN107135859A CN 107135859 A CN107135859 A CN 107135859A CN 201710253119 A CN201710253119 A CN 201710253119A CN 107135859 A CN107135859 A CN 107135859A
Authority
CN
China
Prior art keywords
seedling
robur
protection pipe
protection
mesh screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710253119.3A
Other languages
Chinese (zh)
Inventor
马闯
金磊
张文辉
阎国荣
龙鸿
于玮玮
侯澄辉
刘子敬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Agricultural University
Original Assignee
Tianjin Agricultural University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Agricultural University filed Critical Tianjin Agricultural University
Priority to CN201710253119.3A priority Critical patent/CN107135859A/en
Publication of CN107135859A publication Critical patent/CN107135859A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protecting plants
    • A01G13/02Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protecting plants
    • A01G13/02Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • A01G13/0225Wind breakers, i.e. devices providing lateral protection of the plants
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protecting plants
    • A01G13/02Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • A01G13/0243Protective shelters for young plants, e.g. tubular sleeves
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protecting plants
    • A01G13/10Devices for affording protection against animals, birds or other pests
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00Protecting plants
    • A01G13/10Devices for affording protection against animals, birds or other pests
    • A01G13/105Protective devices against slugs, snails, crawling insects or other climbing animals

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Environmental Sciences (AREA)
  • Zoology (AREA)
  • Birds (AREA)
  • Insects & Arthropods (AREA)
  • Protection Of Plants (AREA)
  • Pretreatment Of Seeds And Plants (AREA)

Abstract

A kind of method that use degradable device protects robur seedling, comprises the following steps:1. the protection pipe of degradation material making and both ends open is chosen;2. protection pipe inner bottom part is formed with a circle draining mesh screen, and up interval is formed with multiple rows of rows of openings, and often arranging rows of openings includes multiple passages;3. protection bottom of the tube is nuzzled soil, exposes and most descend row's draining mesh screen, top oblique pull is fixed on ground and fixation;4. choose the abundant plant of dry type good results amount in robur forest land and, as elite stand, multiple protection pipes are disposed around elite stand, by the seed of landing or 1 year raw seedling cover;5. the firmness of protection pipe is inspected periodically, draining mesh screen is cleared up;6. the seedling protected after 3~4 years has formed independent plants, can normal growth;7. the protection pipe that the degradation material remained makes both ends open can progressively be degraded in the presence of illumination and microorganism.By this method the seed of robur and seedling can be protected not to be gnawed by mouse, bird, beast, prevent wind and rain from encroaching on.

Description

A kind of method that use degradable device protects robur seedling
Technical field
The invention belongs to Forest Cultivation and scondary forest more frontier, it is related to a kind of using degradable device protection robur seedling Method.
Background technology
Oakery refers to the standing forest being mainly made up of Fagaceae oak kind.For global range, oak category (Quercus.spp) seeds numerous types, it is widely distributed, it is warm temperate zone and semi-tropical mainly by property plant, is important Hardwood seeds, with very high economic value.The hm of China's oakery area 17,260,0002, distribution is from 18 ° of north latitude~53 °, east longitude 98 °~130 °, 27 provinces are distributed mainly on, national standing forest area 15.89% is accounted for, oakery always accumulates 12.09 hundred million m3, account for the whole nation Stand 13.30%.According to the scope of its distribution, 6 kinds of the type of blazoning can be divided into, middle 8 kinds of cloth type, narrow 13 kinds of cloth type, mainly Oak belongs to the seeds that grow into forest and included:Quercus acutissima (Quercus acutissima), cork oak, Quercus liaotungensis (Quercus Wutaishanica), Mongolian oak, Sharptooth Oak (Quercus aliena var.acutiserrata), oriental white oak (Quercus Aliena), live oak (Quercus dentata) etc..Oakery is in sides such as water conservation, water and soil conservation, fertilizing soil, improvement environment Face plays the important function for safeguarding ecological safety.
The major way that oakery updates includes zoogamy and the aspect of vegetative propagation two.With the stump of vegetative propagation sprout seedling, Rhizome is sprouted seedling and compared, the features such as by the seedling of Seed Development there is gene diversity to enrich, grow vigorous, long lifespan, is Maintain the important guarantee of oak class population scale.However, oak class fruit is commonly called as acorn nut, average starch content is up to 50.6%~ 58.7%, insect pest and mouse, bird are subject to after planting and is taken food.Research is found, under muroid transportation, robur seed Half time-to-live was usually 0.6~8.6d.At sylvan life and storey, more with the Fence effect (Sciurotamias of Sciuridae Davidianus based on);Border is more based on vole University of Science and Technology ear Ji mouse (Apodemnus latronum).Crawley and Long And Du etc. is it also holds that the seed of oak plant contains abundant starch, it is the good deposit food survived the winter, squirrel can be attracted Tibetan is carried Deng rodent to it to look for.Even if a small number of seeds are sprouted, but its seed residuum can also attract pika to gnaw to bite, and then Destroy growth of seedling.
Due to global warming and distribution ground habitat destruction, oakery forest land year hip number is gradually decreased.Moreover, only There is the seed fallen in safety island to be just avoided that the toxic action of the infringement, competition and soil of animal, final sprouting, seedling, shape Cheng Xin individual.Input from Seed Rain, to seed sprout survival again to seedling, taken food by animal, intensity of illumination, the photophase, The factors such as soil moisture, nutrient are limited, and seed consume is larger, and planting percent is relatively low, seriously constrain oak plant population rule The development of mould and the renewal of oakery.Therefore, suitable growing space is manually set up, it is ensured that robur seed is sprouted and growth of seedling institute The safe space and thermal and hydric environment needed is the important guarantee for maintaining oak class population recruitment, is realize oakery Sustainable Operation effective Premise.
The content of the invention
, can by this method it is an object of the invention to provide a kind of method that use degradable device protects robur seedling Do not gnawed with the seed and seedling of protecting robur by mouse, bird, beast, prevent wind and rain from encroaching on.
As above conceive, the present invention is to be achieved through the following technical solutions:
A kind of method that use degradable device protects robur seedling, comprises the following steps:
1. the protection pipe of degradation material making and both ends open is chosen;
2. protection pipe inner bottom part is formed with a circle draining mesh screen, and up interval is formed with multiple rows of rows of openings, often arranges rows of openings bag Include multiple passages;
3. protection bottom of the tube is nuzzled soil, exposes and most descend row's draining mesh screen, top oblique pull is fixed on ground, each protection Pipe is fixed by multiple legs;
4. choose the abundant plant of dry type good results amount in robur forest land and, as elite stand, multiple guarantors are disposed around elite stand Pillar, by the seed of landing or 1 year raw seedling cover;
5. the firmness of protection pipe is inspected periodically, draining mesh screen is cleared up, it is to avoid blocked;
6. the seedling protected after 3~4 years has formed independent plants, can normal growth;
7. the protection pipe that the degradation material remained makes both ends open can progressively drop in the presence of illumination and microorganism Solution, it is not necessary to cleaning out sample.
The protection pipe is made using degradation material high transparency polylactic acid PLA, protects 10~15cm of bore, thickness of pipe wall 5~10mm, long 70cm~100cm.
The one circle draining mesh screen is arranged at distance protection bottom of the tube 5cm, the long 5cm of mesh screen, mesh size 2mm, interval 2mm, thus up has a rows of openings every 10cm, often arranges 4~6 passages.
The protection bottom of the tube 5cm is nuzzled soil, and its top is fixed on ground using 45~60 ° of high intensity iron wire oblique pull, Each pipe fixes 3~4 legs.
10~20 protection pipes are disposed around the robur elite stand.
The leg uses length 8~10cm timber wedges.
Compared with prior art, the present invention has following beneficial technique effect:
1. the present invention solves the phenomenon that oak class fruit (acorn nut) is easily taken food by rodent and birds, reduces rubber Son is handled upside down and gnawed rate 20%~58%.
2. avoid seed sprout, the windburn during growth of seedling, burn day, the infringement of sleet disaster, improve life in 3 years The storage rate 37%~56% of oak class seedling, can effectively maintain population recruitment.
3. the protection pipe made using degradation material, it is possible to decrease forest land disposal costs, the Harmful Waste for reducing generation, is protected Protect a forest ground health.
Brief description of the drawings:
Fig. 1 is the structural representation of protection pipe.
Embodiment:
A kind of method that use degradable device protects robur seedling, comprises the following steps:
1) protection pipe that high transparency polylactic acid PLA degradation material makes, the 10~15cm of internal diameter of protection pipe 1, tube wall are chosen Thickness 5~10mm, long 70cm~100cm, both ends open;
2) a circle draining mesh screen 3 is formed with distance protection bottom of the tube 5cm, mesh screen long 5cm, mesh size 2mm are spaced 2mm, with Prevent from gathering rainwater in pipe, thus up have a rows of openings every 10cm, often arranging 4~6 is used as passage 2;
3) protection bottom of the tube 5cm is nuzzled soil, exposes and most descend row's draining mesh screen, top uses high intensity iron wire oblique pull 45 ~60 ° are fixed on ground, and each protection pipe fixes 3~4 legs, and leg uses length 8~10cm timber wedges;
4) choose the abundant plant of dry type good results amount in robur forest land and, as elite stand, 10~20 are disposed around elite stand Individual protection pipe, by the seed (acorn nut) of landing or 1 year raw seedling cover, protecteds from rodent and gnaws and wind and rain calamity Evil;
5) firmness of protection pipe is inspected periodically, draining mesh screen is cleared up, it is to avoid blocked;
6) seedling protected after 3~4 years has formed independent plants, can normal growth;
7) the high transparency poly-lactic acid material of residual can progressively be degraded in the presence of illumination and microorganism, it is not necessary to be cleaned out Sample.
The specific method contrast experiment using degradable device protection robur seedling is designed below, to illustrate this method pair The protecting effect of robur seedling:
[experimental design]
Choice experiment region be Part of The Qinling Mountains In Shaanxi Province North Slope of Middle Section Louguantai Taoist Temple forest farm (33 ° of 42' -34 ° 14'N, 107 ° of 39' - 108 ° of 37'E), 570~1020m of height above sea level belongs to the continental monsoon climate in warm temperate zone, average annual precipitation 674.3mm, average annual evaporation capacity 1109.7mm. soil is mountain cinnamonic soil.Zonal vegetation is Temperate Forest Ecosystems, and the main arbor constructive species in forest land is cork Oak.
The forest farm implemented wildwood fencing safeguard measure from 1985, and the development of oak Forest forest form is preferable, and cork oak accounts for More than the 90% of standing forest composition.This studies relatively neat in early August, 2009 selection forest form, the location that forest is evenly distributed, 12 10m × 10m sample is set.Wherein, treatment group uniform placement protection pipe 20,50 and 80, and not pacify respectively It is control with filling protection pipe sample, repeats 3.
[index determining]
Each sample is divided into 1m × 1m grid 100 with monitoring is taken food by Acorn removal, checks grid in detail every time Interior acorn nut quantity (including the acorn nut in protection pipe and seedling).Because Acorn removal and taking food occurs with planting simultaneously, this research Acorn nut quantity when terminating (time is 2009.10.15) using Seed Rain is radix, acorn nut in sample ground during statistics 2009.12.15 Quantity is carried and takes food situation.To count the difference of acorn nut quantity twice as the seed number carried;With with obvious cattle grazing trace Mark is to gnaw seed.Consider natural cause cause seed to disappear, using multiple samples average as statistical value.
Seed germination rate, seedling numbers and 1 year raw seedling survival rate in growth of seedling monitoring and statisticses monitoring sample ground, and point Xuan Ze not protect protection of pipe and 6~8 plants of seedling growing naturally, terminate (before and after October 15) in annual Growing season and measure it Base footpath and plant height, protection pipe is gently removed avoid damage to seedling during measurement.
Degradation experiment uses soil buries method, in being embedded in after the PLA standard specimens of shaping are weighed in experimental forest differently, Depth 20cm.Micropopulation of the PLA standard specimen degrading microorganism sources from soil.1 group of test specimen (3 therein was taken out every 1 year Individual Duplicate Samples).Remove the impurity on its surface.Then test specimen is put into vacuum drying chamber to adopt after dry 24h at a temperature of 50 DEG C Quality before and after being degraded with electronic balance (0.0001g) accurate weighing PLA standard specimens, takes its mean value calculation PLA standards to try Part mass loss rate.PLA standard specimens tensile strength and impact strength, tensile strength and punching are tested using omnipotent test machine for mechanism Hit intensity test is carried out according to GB/T13525-92.
[experimental result]
Robur seedling protection pipe is installed below by contrast and seed and seedling survival and the life on protection pipe sample ground are not installed Long situation illustrates specific effect:
Table 1 installs robur seedling protection pipe and does not install the acorn nut and seedling survival situation on protection pipe sample ground
Mid-August, Quercus variabilis on northern slope of Qinling Mountains seed maturity starts to drop from mid-September to October, and in November The first tenday period of a month terminate, and starting phase, 3 stages of peak period and latter stage are divided into according to planting quantity.During planting, along with rodent The collection of animal and gnaw, the seed amount on each sample ground of sample investigation immediately after planting terminates, protection pipe 20,50 is installed In the sample ground of 80, acorn nut preserves quantity and is higher by with not installing sample 3.1%, 5.4%, 10% respectively;Planting terminates latter 1 Month, Acorn removal and situation of gnawing are found with investigating sample, compared with not installing protection pipe sample, with installing three samples of protection pipe Carrying rate reduces 20.8%, 54.2% and 58.3% respectively, and the rate of gnawing reduces 24.5%, 48.1% and 56.3%;Second Year spring statistics sample ground quantity of emerging, the seedling numbers sprouted with installing three samples of protection pipe substantially increase, and children then The seedling death rate have dropped 7.9%, 21.7%, 24.8% respectively;(protection pipe is installed the 4th year) the 3rd year after planting, in protection pipe Seedling it is intact, and unprotected seedling numbers reduce it is obvious.Due to cattle grazing, trample on the 3 years raw seedling in control sample ground Only survive 17 plants, the 3 years raw seedling numbers preserved with installing three samples of protection pipe increase intimate 2~4 times, life in 3 years respectively Seedling storage rate adds 37.5%, 47.9%, 56.3% respectively.
Seedling and the contrast of unprotect pipe seedling growth in the protection pipe of table 2.
Protection pipe and the growth of seedling situation of unprotect pipe are contrasted, seedling height increase in protection pipe is found, but the two is poor It is different unobvious.Compared with unprotected pipe, annual seedling height increase by 12.9%, 8.5%, 19.3% in protection pipe, and Ground diameter difference is little.
The high transparency poly-lactic acid material quality and change of mechanical property of the different degradation times of table 3.
Shown in table 3, PLA test specimens extend with degradation time in soil, and degraded accelerates, mechanical characteristic is deteriorated.Embedding three Year, quality reduced trend substantially respectively, and mass loss rate is in gradually to increase trend;Impact strength is gradually reduced, with First Year phase 54.9% than, the 3rd year impact strength decreased, tensile strength have dropped 44.5%.Illustrate that high transparency poly-lactic acid material has preferably Degradation characteristic.

Claims (6)

1. a kind of method that use degradable device protects robur seedling, it is characterised in that:Comprise the following steps:
1. the protection pipe of degradation material making and both ends open is chosen;
2. protection pipe inner bottom part is formed with a circle draining mesh screen, and up interval is formed with multiple rows of rows of openings, often arranges rows of openings including many Individual passage;
3. protection bottom of the tube is nuzzled soil, exposes and most descend row's draining mesh screen, top oblique pull is fixed on ground, each protection pipe is led to Multiple legs are crossed to fix;
4. choose the abundant plant of dry type good results amount in robur forest land and, as elite stand, multiple protections are disposed around elite stand Pipe, by the seed of landing or 1 year raw seedling cover;
5. the firmness of protection pipe is inspected periodically, draining mesh screen is cleared up, it is to avoid blocked;
6. the seedling protected after 3~4 years has formed independent plants, can normal growth;
7. the protection pipe that the degradation material remained makes both ends open can progressively be degraded in the presence of illumination and microorganism, no Need with cleaning out sample.
2. the method that a kind of use degradable device according to claim 1 protects robur seedling, it is characterised in that:It is described Protection pipe is made using degradation material high transparency polylactic acid PLA, protects 10~15cm of bore, 5~10mm of thickness of pipe wall, long 70cm~100cm.
3. the method that a kind of use degradable device according to claim 1 protects robur seedling, it is characterised in that:It is described One circle draining mesh screen is arranged at distance protection bottom of the tube 5cm, the long 5cm of mesh screen, mesh size 2mm, interval 2mm, thus up every There is a rows of openings every 10cm, often arrange 4~6 passages.
4. the method that a kind of use degradable device according to claim 1 protects robur seedling, it is characterised in that:It is described Protection bottom of the tube 5cm is nuzzled soil, and its top is fixed on ground using 45~60 ° of high intensity iron wire oblique pull, and each pipe fixes 3 ~4 legs.
5. the method that a kind of use degradable device according to claim 1 protects robur seedling, it is characterised in that:It is described 10~20 protection pipes are disposed around robur elite stand.
6. the method that a kind of use degradable device according to claim 4 protects robur seedling, it is characterised in that:It is described Leg uses length 8~10cm timber wedges.
CN201710253119.3A 2017-04-18 2017-04-18 A kind of method that use degradable device protects robur seedling Pending CN107135859A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710253119.3A CN107135859A (en) 2017-04-18 2017-04-18 A kind of method that use degradable device protects robur seedling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710253119.3A CN107135859A (en) 2017-04-18 2017-04-18 A kind of method that use degradable device protects robur seedling

Publications (1)

Publication Number Publication Date
CN107135859A true CN107135859A (en) 2017-09-08

Family

ID=59773640

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710253119.3A Pending CN107135859A (en) 2017-04-18 2017-04-18 A kind of method that use degradable device protects robur seedling

Country Status (1)

Country Link
CN (1) CN107135859A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108040704A (en) * 2017-12-20 2018-05-18 四川省农业科学院土壤肥料研究所 A kind of anti-bird pest protective device and preparation method thereof

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2368422A2 (en) * 2010-03-22 2011-09-28 Peter Witasek Plant protection device
CN103026935A (en) * 2012-12-26 2013-04-10 华南师范大学 Mangrove plant big seedling transplantation protective cover and application thereof
CN203801389U (en) * 2014-02-17 2014-09-03 张成梁 Protective mesh barrel for preventing mice and rabbits from harming seedlings
CN104956998A (en) * 2015-06-19 2015-10-07 中国林业科学研究院亚热带林业研究所 Biodegradable afforestation device and afforestation method
CN204762555U (en) * 2015-06-25 2015-11-18 山西省林业科学研究院 Treelet prevents gnawing and stings protective sheath
CN205124562U (en) * 2015-11-30 2016-04-06 贾军平 Treelet protection device
CN205408882U (en) * 2016-03-18 2016-08-03 天津市世明塑料制品有限公司 Novel sapling protective sheath
CN106688739A (en) * 2016-12-01 2017-05-24 东兴鑫宇实业有限公司 Young seedling protection cover

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2368422A2 (en) * 2010-03-22 2011-09-28 Peter Witasek Plant protection device
CN103026935A (en) * 2012-12-26 2013-04-10 华南师范大学 Mangrove plant big seedling transplantation protective cover and application thereof
CN203801389U (en) * 2014-02-17 2014-09-03 张成梁 Protective mesh barrel for preventing mice and rabbits from harming seedlings
CN104956998A (en) * 2015-06-19 2015-10-07 中国林业科学研究院亚热带林业研究所 Biodegradable afforestation device and afforestation method
CN204762555U (en) * 2015-06-25 2015-11-18 山西省林业科学研究院 Treelet prevents gnawing and stings protective sheath
CN205124562U (en) * 2015-11-30 2016-04-06 贾军平 Treelet protection device
CN205408882U (en) * 2016-03-18 2016-08-03 天津市世明塑料制品有限公司 Novel sapling protective sheath
CN106688739A (en) * 2016-12-01 2017-05-24 东兴鑫宇实业有限公司 Young seedling protection cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108040704A (en) * 2017-12-20 2018-05-18 四川省农业科学院土壤肥料研究所 A kind of anti-bird pest protective device and preparation method thereof

Similar Documents

Publication Publication Date Title
Akinlabi et al. Bamboo
Gómez Importance of microhabitat and acorn burial on Quercus ilex early recruitment: non-additive effects on multiple demographic processes
Nadkarni et al. Potential effects of climate change on canopy communities in a tropical cloud forest: an experimental approach
CN103999672B (en) A kind of method of non-polluted planting dendrobium candidum
López-Barrera et al. Effects of the type of montane forest edge on oak seedling establishment along forest–edge–exterior gradients
Russell et al. Effects of white-tailed deer on the population dynamics of acorns, seedlings and small saplings of Quercus buckleyi
Montes-Hernández et al. Seedling establishment of Quercus insignis: A critically endangered oak tree species in southern Mexico
Sawaya et al. Environmental variation shifts the relationship between trees and scatterhoarders along the continuum from mutualism to antagonism
Barberá et al. Seedling recruitment in a semi-arid steppe: the role of microsite and post-dispersal seed predation
Chaar et al. Effects of treeshelters and polyethylene mulch sheets on survival and growth of cork oak (Quercus suber L.) seedlings planted in northwestern Tunisia
Martiník et al. Tree growing space and acorn production of Quercus robur
Leiblein et al. Biomass development and CO2 gas exchange of Ambrosia artemisiifolia L. under different soil moisture conditions
Windels et al. The ecology of Canada Yew (Taxus canadensis Marsh.): a review
CN104620874B (en) A kind of Semen sojae atricolor inoculation identification method to Bemisia tabaci virosis resistance
Parkash et al. Effect of deficit irrigation on root growth, soil water depletion, and water use efficiency of cucumber
CN103798044B (en) Stem nematode disease resistance identification method for sweet potato related wild species
Iida et al. Spatial and temporal dispersal of Kalopanax pictus seeds in a temperate deciduous forest, central Japan
Chen et al. The ecological characteristics of seed germination and seedling establishment of Manglietia patungensis: implication for species conservation
CN107135859A (en) A kind of method that use degradable device protects robur seedling
Pande et al. Impacts of disturbance on the population structure and regeneration status of tree species in a Central Himalayan Mixed-Oak Forest, India
Carneiro et al. Combined effects of low light and water stress on Jatropha curcas L. promotes shoot growth and morphological adjustment
Singh et al. Variability in cone, seed and seedling characteristics of Pinus kesiya Royle ex. Gordon
Guo et al. Impacts of burial and insect infection on germination and seedling growth of acorns of Quercus variabilis
CN104170814B (en) A kind of monitoring trapping method of Bradysia odoriphaga
Malík et al. Development and dynamics of mountain spruce (Picea abies [L.] Karsten) stand regeneration.

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20170908