CN110999745A - Water-saving fish scale pit digging and forest-building method for loess area - Google Patents
Water-saving fish scale pit digging and forest-building method for loess area Download PDFInfo
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- CN110999745A CN110999745A CN201911393107.6A CN201911393107A CN110999745A CN 110999745 A CN110999745 A CN 110999745A CN 201911393107 A CN201911393107 A CN 201911393107A CN 110999745 A CN110999745 A CN 110999745A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G23/00—Forestry
- A01G23/02—Transplanting, uprooting, felling or delimbing trees
- A01G23/04—Transplanting trees; Devices for grasping the root ball, e.g. stump forceps; Wrappings or packages for transporting trees
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/40—Afforestation or reforestation
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Botany (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention provides a water-saving fish scale pit digging and forest building method in loess areas, which comprises the steps of firstly digging a plurality of fish scale pits with lengthened long diameters and round pit bottoms from top to bottom on a hillside, wherein the fish scale pits are arranged in staggered rows and are distributed in a plum blossom shape on a plane; then laying a bentonite waterproof blanket at the bottom of the round pit; finally, planting the nursery stock, filling soil and treading tightly; the pit bottom is circular, and the diameter of the pit bottom is 50-70 cm; the long diameter of the fish scale pit is 70-90 cm, the short diameter of the fish scale pit is 50-70 cm, and the pit depth is 80-100 cm. Aiming at the characteristics of slope rock-soil mass in loess plateau areas, the length of the long diameter of the fish scale pit is increased on the basis of the traditional fish scale pit digging and building in the loess areas, so that the method is beneficial to collecting rainwater on the slope, improves the capability of the fish scale pit for searching and collecting water, and improves the water retention capability; the pit bottom is round, so that the maximum contact area of the seedling root system to the water body is ensured, and the survival rate of the seedlings is improved; the bentonite waterproof blanket is arranged at the bottom of the pit, so that the water retention capacity is improved, and water resources are saved; the scouring of the slope runoff is reduced and the water and soil loss is reduced while the slope rainwater is fully collected.
Description
The technical field is as follows:
the invention belongs to the technical field of afforestation and soil preparation, and particularly relates to a water-saving fish scale pit digging and afforestation method for a loess area.
Background art:
the middle area of the mountain and western plateau is dry and windy in spring, hot and rainy in summer, cool and sunny in the early autumn, and cold and snowy in winter. The annual rainfall amount changes are very different, the difference between mountainous areas and plains is obvious, besides the obvious seasonal effect, the method is closely related to the terrain, and the whole phenomenon is that the rainfall amount is not uniformly distributed in the year and the evaporation amount is large. In the area, the average annual precipitation is 535mm, the maximum annual precipitation is 749.1mm, the minimum annual precipitation is 210.1mm, the precipitation is mainly concentrated in 6-9 months, generally accounts for 60-80% of the annual precipitation, the precipitation in autumn and winter is less, and the climate is dry; in the region, the mountain ridge and the abrupt slope are exposed, the weathering and erosion effects are strong, and the ditch bottom is rich in sand and gravel. The condition of mountain vegetation is poor, precipitation is less in spring and autumn and winter, evaporation capacity is large, vegetation is dry and withered, and mountain side slopes are exposed seriously.
The good root system of vegetation enables the bank protection to have solid soil and anti-impact ability, adopts the vegetation protection, increases the vegetation area, reduces surface runoff, can fundamentally reduce domatic soil erosion and water loss, increases side slope stability. However, the mountainous and western plateau areas have complex terrains, exposed rocks at ridges and steep slopes, strong weathering and denudation effects, steep slopes, vertical loess joint development, high porosity, loose soil and low slope greening survival rate.
A traditional funnel type or inclined type fish scale pit is a seedling planting method of a side slope, the method is that the fish scale pits are dug one by one on the side slope according to the terrain, seedlings are inserted into the middle of the bottom of the fish scale pit, and planting soil returns to the pits, but the fish scale pits are not beneficial to collecting rainwater on the slope surface and storing rainwater on the bottom of the pit, and are not beneficial to water absorption growth of the seedlings just planted in damaged roots. The reason for causing above-mentioned problem lies in that the fish scale hole catchment face is little when having rainfall, and the water that flows into the hole bottom is few, and the hole bottom area is little in addition, and the rainwater is too concentrated and ground body crack develops, and water infiltration is too fast, is unfavorable for the growth of root system. Therefore, it is necessary to design a water-saving type fish scale pit excavation and forest-building method for loess areas with large catchment area and strong water retention capacity.
The invention content is as follows:
the invention aims to overcome the defects of small water collection surface, low water collection efficiency and insufficient water retention capacity of the conventional scale pit, and provides an enlarged circular pit bottom water-saving scale pit digging and forestation method by combining the characteristics of loess.
The invention adopts the following technical scheme:
a method for digging and building forests by water-saving fish scale pits in loess areas comprises the steps of firstly digging a plurality of fish scale pits which are long in length and round in pit bottom from top to bottom on a hillside, wherein the fish scale pits are arranged in staggered rows and distributed in a plum blossom shape on a plane; then laying a bentonite waterproof blanket at the bottom of the round pit; finally, planting the nursery stock, filling and treading.
Further, the distance between adjacent fish scale pits is 300 cm.
Furthermore, the pit bottom is circular, and the diameter is 50-70 cm.
Furthermore, the long diameter of the fish scale pit is 70-90 cm, the short diameter of the fish scale pit is 50-70 cm, and the pit depth is 80-100 cm.
Furthermore, the long diameter of the fish scale pit is 80cm, the short diameter of the fish scale pit is 60cm, and the pit depth is 90 cm.
Further, 3/4 that the size of the bentonite waterproof blanket is the size of the round pit bottom is arranged at the pit bottom.
Furthermore, a water bridge is lapped between the fish scale pits adjacent to the upper part and the lower part of the hillside, so that the utilization rate of water is increased.
Furthermore, soil ridges are arranged around the fish scale pits; the width of the ridge is 30 cm.
Further, the nursery stock is one or more of Chinese pine, arborvitae, acer pentandra and prunus cerasifera.
Further, the bentonite waterproof blanket is made of natural inorganic materials.
The invention has the beneficial effects that:
aiming at the characteristics of slope rock-soil bodies in loess plateau areas, the length of the long diameter of the fish scale pit is increased on the basis of traditional fish scale pit digging and building in loess areas, so that the method is beneficial to collecting slope rainwater, improves the capability of searching and collecting water in the fish scale pit, ensures the full utilization of the slope rainwater and improves the water retention capability; the expanded pit bottom is circular, so that the contact area of the pit bottom with water is the largest, the largest contact area of the seedling root system with the water is ensured, and the survival rate of the seedlings is improved; the bentonite waterproof blanket is arranged at the bottom of the pit, so that the water retention capacity is improved, the defect of reverse water absorption of the water retention agent is overcome, and water resources are saved; meanwhile, the scale pits are arranged in a quincunx shape, and the upper scale pit and the lower scale pit are provided with lap joint water bridges, so that rainwater is utilized to the maximum extent, the utilization rate of water is increased, and the moisture required by the survival and growth of the nursery stock is ensured. Under the condition that the technology is basically the same as the traditional fish scale pit soil preparation technology, the scouring of slope runoff is reduced while slope rainwater is fully collected, the water and soil loss is reduced, and the method is a soil preparation mode worthy of popularization.
Description of the drawings:
FIG. 1 is a cross-sectional view of the fish scale pit on a loess slope according to the present invention;
FIG. 2 is a top view of the fish scale pit of the present invention;
FIG. 3 is a schematic view of 6 fish scale pits arranged in parallel in upper and lower rows;
the reference numbers in the drawings are: 1. a circular pit bottom; 2. a bentonite waterproof blanket; 3. a ridge of earth; A. a long diameter; B. short diameter; C. the pit depth; D. the ridge of the earth is wide.
The specific implementation mode is as follows:
in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1-3, a method for water-saving fish scale pit excavation and forest establishment in loess areas comprises the steps of firstly excavating a plurality of fish scale pits which are long in length and round in pit bottom from top to bottom at a hillside, wherein the fish scale pits are arranged in staggered rows and distributed in a plum blossom shape on a plane; then laying a bentonite waterproof blanket at the bottom of the round pit; finally, planting the nursery stock, filling soil and treading tightly; the distance between the adjacent fish scale pits is 300 cm; the pit bottom is circular, and the diameter of the pit bottom is 50-70 cm; the long diameter of the fish scale pit is 70-90 cm, the short diameter of the fish scale pit is 50-70 cm, and the pit depth is 80-100 cm; 3/4 that the size of the bentonite waterproof blanket is the size of the round pit bottom is arranged at the pit bottom; specifically, in the embodiment of the invention, the long diameter of the fish scale pit is 80cm, the short diameter of the fish scale pit is 60cm, and the pit depth is 90 cm.
In the embodiment of the invention, a water bridge is also lapped between the fish scale pits adjacent to the upper part and the lower part of the hillside, so that the utilization rate of water is increased; a ridge is arranged around the fish scale pit; the width of the ridge is 30 cm.
The nursery stock selected by the invention is one or more of Chinese pine, arborvitae, acer pentandra and purple leaf plum; the bentonite waterproof blanket is made of natural inorganic materials, has no influence on the environment and has good environmental protection performance.
Test examples
In order to verify the application effect of the water-saving fish scale pit digging and forest building method in the loess area, a comparison test is carried out on the traditional cave-shaped fish scale pit digging and forest building method and the water-saving fish scale pit digging and forest building method of the invention:
the Taiyuan is located in the middle of the mountain and western plateau, and belongs to dry and windy in spring, hot and rainy in summer, cool and sunny in the early autumn, and cold and snowy in winter. Annual rainfall amount changes are greatly different, differences between mountain areas and plains are obvious, the rainfall amount is closely related to terrains except for obvious monsoon influences, the rainfall amount is integrally represented as uneven distribution within a year, annual average rainfall amount in the areas is 535mm, annual maximum rainfall amount is 749.1mm, annual minimum rainfall amount is 210.1mm, rainfall is mainly concentrated in 6-9 months and can generally account for 60-80% of annual rainfall amount, and rainstorm occurs in the areas in the year. The vertical joint development of the loess of the mountain, the porosity of 45-50 percent, loose soil, serious water and soil loss and poor water storage capacity, so the ecological restoration of the water-saving fish scale pit in the west mountain of the Wanbailin area in the original market is specifically explained.
(1) Selection of afforestation tree species
The method is characterized in that afforestation dominant tree species are selected according to natural growth in loess areas and tree species resource investigation of artificial planting, the tree species selected in the embodiment are Chinese pine, arborvitae and Kazuno-Heziye plum, a seedling planting mode is adopted in 5 months in 2019, and the row spacing is 3.0m multiplied by 3.0 m.
(2) Soil preparation method
Test groups: by adopting the water-saving fish scale pit digging and forestation method, the plant-row spacing is 3.0m multiplied by 3.0m, and the plum blossom type arrangement is adopted;
control group: the traditional hole-shaped fish scale pit digging and forestation method is adopted, the plant row spacing is 3.0m multiplied by 3.0m, and the plum blossom type arrangement is adopted.
The invention relates to a test group water-saving type fish scale pit land preparation afforestation technology which combines the regional rainfall characteristics of the western mountain of Taiyuan and improves a land preparation afforestation mode on the basis of the traditional fish scale pits, and is characterized in that the fish scale pits are lengthened in length and are circular in bottom, the land preparation specification is that the length is multiplied by the short diameter and multiplied by the depth is 80cm multiplied by 60cm multiplied by 90cm, the length of the fish scale pits is lengthened along the contour line direction, the catchment surface is increased, the rainwater collection capability is enhanced, the pit bottoms are dug into enlarged circles, the contact area of a water body at the pit bottoms is ensured to be the maximum, the water absorption capacity of a nursery stock root system is improved, the rainwater can be reduced to wash a slope, and limited rainwater can be collected; the bentonite waterproof blanket with the size of 3/4 soil balls is arranged at the bottom of the pit, so that water can be effectively preserved, and the water absorption capacity of the root system of the seedling is increased.
The control group of the invention is a traditional land preparation mode in the west mountain area, and the specifications of the tree pits are as follows: length × width × depth is 60cm × 60cm × 60 cm.
(3) Planting method
When the test group water-saving type fish scale pit soil preparation method is used for planting, nursery stocks are placed in the middle of the pit bottom, so that the planting is straight and supported, the depth is suitable, and the seedlings are tightly treaded; after planting, the depth of the filled soil is 35cm, the filled soil keeps a distance of 30cm from the upper opening of the pit, the vacant part is reserved for watering and rainwater collection, and meanwhile, a bentonite waterproof blanket is arranged in the middle of the fish scale pit to increase the water retention capacity.
When the traditional hole-shaped soil preparation planting of the control group is carried out, 1/3 is backfilled with planting soil, the seedlings are placed in the centers of the holes, then the soil is hilled to be about 1/3 away from the upper openings of the holes, and the seedlings are compacted by treading on the soil.
(4) Test combination
This experiment was performed with 8 combinations, see table 1.
Adopting the two groups of scale pit soil preparation modes and combining 8 groups of four tree species for comparison test, wherein 500 plants are planted in each test group, and 4000 plants are planted in total; the 8 combined watering measures are ten times; the survival rate and the greening effect of different tree species under different soil preparation measures are mainly tested.
The invention relates to a test group water-saving type fish scale pit digging and forestation technology, which is a novel soil preparation mode combined with the actual conclusion of Taiyuan west mountain, wherein the soil preparation mode is characterized in that a round pit bottom of a fish scale pit bottom is provided with a bentonite waterproof blanket, only half pool soil is required to be filled during planting, and a quincunx arrangement is adopted, so that rainwater can be collected more favorably, and particularly, short-time strong rainfall which is difficult to be absorbed by the ground surface is collected; meanwhile, the bentonite waterproof blanket is added at the bottom of the pit, so that water can be kept when watering or rainfall occurs, and moisture can be provided for the root system for a long time.
As can be seen from table 2, the soil preparation mode of the test group of the invention can greatly improve the survival rate of the nursery stock compared with the traditional soil preparation mode, the labor cost of the two soil preparation modes is basically the same, the test group only increases the price of the waterproof blanket material, and the price of the waterproof blanket material is low; the water-saving fish scale pit has higher technical requirements on excavating workers, and the engineering quantity is slightly increased compared with the traditional fish scale pit.
① survival rate determination, namely grouping, observing and counting all test afforestation nursery stocks, and calculating the survival rate, wherein the survival determination standard of a single plant is that a new branch of the nursery stock is normally grown without diseases and insect pests after sprouting and closing one branch.
The combined survival rate is the number of survival plants in combination/the total number of plants planted in combination.
② growth measurement, 50 plants are extracted from the early 11 months of 2019 in each combination, numbered, the breast diameter and the seedling height of each plant are measured, and the growth amount is calculated compared with the breast diameter measured initially.
③ visual quality for inspecting visual quality of nursery stock in two soil preparation modes including growth vigor, posture, verticality, color, etc.
The attached table is as follows:
TABLE 1 test combination table for afforestation and soil preparation technology
| Test No | Time of planting | Soil preparation method | Tree species | Number of watering times | Number of plants planted | Remarks for |
| 1 | Year 2019, month 5 | Water-saving fish scale pit | Chinese pine | 10 | 500 | |
| 2 | Year 2019, month 5 | Traditional fish scale pit | Chinese pine | 10 | 500 | |
| 3 | Year 2019, month 5 | Water-saving fish scale pit | Arborvitae | 10 | 500 | |
| 4 | Year 2019, month 5 | Traditional fish scale pit | Arborvitae | 10 | 500 | |
| 5 | Year 2019, month 5 | Water-saving fish scale pit | Acer mono Maxim | 10 | 500 | |
| 6 | Year 2019, month 5 | Traditional fish scale pit | Acer mono Maxim | 10 | 500 | |
| 7 | Year 2019, month 5 | Water-saving fish scale pit | Prunus salicina (Willd.) Kuck | 10 | 500 | |
| 8 | Year 2019, month 5 | Traditional fish scale pit | Prunus salicina (Willd.) Kuck | 10 | 500 |
TABLE 2 statistics table for survival rate and growth amount of afforestation with different soil preparation methods
Compared with the traditional cave-shaped soil preparation method, the water-saving type fish scale pits greatly improve the afforestation survival rate, the digging cost of the water-saving type fish scale pits is slightly increased compared with that of the traditional fish scale pits, the water-saving type fish scale pits have higher requirements on the digging technology, the engineering quantity is slightly increased, but the water quantity required for survival and maintenance is small, and the traditional fish scale pits are opposite and are a soil preparation method which is worth being popularized. Moreover, the water-saving fish scale pit soil preparation mode is more favorable for collecting rainwater of strong precipitation, the limited rainwater is collected at the root of the planted seedling, and the scouring of surface runoff on surface soil during the strong precipitation can be reduced, and the formation of water and soil loss is retarded or reduced. The water-saving fish scale pit has certain water retention capacity and certain advantages compared with a water retention agent, and trees can be planted in the pit to retain water and fertilizer.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention, it should be noted that, for those skilled in the art, several modifications and decorations without departing from the principle of the present invention should be regarded as the protection scope of the present invention.
Claims (10)
1. A water-saving fish scale pit digging and afforesting method for loess areas is characterized in that a plurality of fish scale pits which are long in length and round in pit bottom are firstly dug from top to bottom at a hillside, and the fish scale pits are arranged in staggered rows and distributed in a plum blossom shape on a plane; then laying a bentonite waterproof blanket at the bottom of the round pit; finally, planting the nursery stock, filling and treading.
2. A loess region water-saving type fish scale pit digging and forestation method according to claim 1, wherein the distance between adjacent fish scale pits is 300 cm.
3. A water-saving fish scale pit digging and afforesting method for loess areas according to claim 1, wherein the bottom of the pit is circular and has a diameter of 50-70 cm.
4. A water-saving fish scale pit digging and afforesting method for loess areas according to claim 1, wherein the long diameter of the fish scale pit is 70-90 cm, the short diameter of the fish scale pit is 50-70 cm, and the pit depth is 80-100 cm.
5. A water-saving fish scale pit digging and afforesting method for loess areas according to claim 1, wherein the long diameter of the fish scale pits is 80cm, the short diameter of the fish scale pits is 60cm, and the pit depth is 90 cm.
6. A water-saving fish scale pit digging and afforesting method for loess areas according to claim 1, wherein the size of the bentonite waterproof blanket arranged at the pit bottom is 3/4 the size of a round pit bottom.
7. A water-saving fish scale pit digging and afforesting method for a loess area according to claim 1, wherein a water bridge is connected between the fish scale pits adjacent to the upper and lower parts of the hillside to increase the utilization rate of water.
8. A water-saving fish scale pit digging and building forest method for loess areas according to claim 1, wherein ridges are further arranged around the fish scale pits; the width of the ridge is 30 cm.
9. A water-saving fish scale pit digging and afforesting method for loess areas according to claim 1, wherein the nursery stock is one or more of Chinese pine, arborvitae, acer pentandra and prunus cerasifera.
10. A water-saving fish scale pit digging and afforesting method for loess areas according to claim 1, wherein the bentonite waterproof blanket is a natural inorganic material.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111642168A (en) * | 2020-06-28 | 2020-09-11 | 湖南师范大学 | System and method for improving masson pine woodland soil |
| CN115380756A (en) * | 2022-08-29 | 2022-11-25 | 北京正和恒基滨水生态环境治理股份有限公司 | Method for improving survival rate of nursery stock in mountain afforestation and mountain afforestation side slope |
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| CN108812166A (en) * | 2018-05-25 | 2018-11-16 | 国有济源市南山林场 | A kind of fish-scale pit preparations for afforestation method |
| CN209628297U (en) * | 2019-02-18 | 2019-11-15 | 四川金原工程勘察设计有限责任公司 | Collection rain device for arid area vegetation |
| CN110506555A (en) * | 2019-09-19 | 2019-11-29 | 中卫市永胜生态果品流通专业合作社 | A kind of fish scale pit water-saving irrigation technique |
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| CN1820578A (en) * | 2005-12-31 | 2006-08-23 | 兰州市南北两山环境绿化工程指挥部 | Method for anti-drought afforestation by collecting water, preserving water and supplementing water |
| CN105409376A (en) * | 2015-11-09 | 2016-03-23 | 北京林业大学 | Method for preparing lands for afforestation in loess gully regions |
| CN108812166A (en) * | 2018-05-25 | 2018-11-16 | 国有济源市南山林场 | A kind of fish-scale pit preparations for afforestation method |
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| CN111642168A (en) * | 2020-06-28 | 2020-09-11 | 湖南师范大学 | System and method for improving masson pine woodland soil |
| CN115380756A (en) * | 2022-08-29 | 2022-11-25 | 北京正和恒基滨水生态环境治理股份有限公司 | Method for improving survival rate of nursery stock in mountain afforestation and mountain afforestation side slope |
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