CN-118844258-B - Three-stage forestation method for desertification area

CN118844258BCN 118844258 BCN118844258 BCN 118844258BCN-118844258-B

Abstract

The invention belongs to the technical field of forestation, and particularly relates to a three-stage forestation method in desertification areas. The method comprises the first stage of setting up a barrier wall according to wind direction, wherein the barrier wall is arranged by planting sand sagebrush according to a plant distance of 50 cm-70 cm, tearing the sand sagebrush from the middle, connecting the torn sand sagebrush in turn, the second stage of setting up the barrier wall in the current year or the autumn of the second year, planting leguminous shrubs on the leeside of the barrier wall, and the third stage of setting up the barrier wall in the second year or the third year, and planting trees or shrubs at the barrier wall. In the method, the barrier wall in the first stage is used for fixing sand and retaining water and preventing wind erosion, the leguminous shrubs in the second stage are used for enhancing the stability of sand and soil and retaining water, the arbor or shrubs in the third stage are used for main planting to form forests, and the three stages are used in combination to improve the survival rate of forests.

Inventors

ZHANG YINGLONG
ZHANG CHI
ZHANG ZHI
SHANG WENYU

Assignees

榆林沙漠王生物科技有限公司

Dates

Publication Date: 20260505
Application Date: 20240812

Claims (4)

1. A method of three-stage forestation in a desertification area, comprising: Firstly, blocking and stabilizing sand, namely building a blocking wall facing the wind according to the wind direction; The setting method of the barrier wall comprises planting sand sagebrush at a plant distance of 50 cm-70 cm, tearing the sand sagebrush from the middle, and sequentially connecting the torn sand sagebrush at each half of the left and right sides; A second stage, planting leguminous shrubs on the lee side of the barrier wall in the current year or the autumn of the second year when the barrier wall is arranged; a third stage, namely, planting arbor or shrub at the barrier wall in the second year or the third year of setting the barrier wall; in the second stage, the shrub of Leguminosae is one or more of amorpha fruticosa, ammopiptanthus mongolicus, alhagi sparsifolia, sophora moorcroftiana, sappan wood and caragana korshinskii; the arbor planted in the third stage is one or more of pinus sylvestris, ulmus pumila, oleaster and populus euphratica; The shrubs planted in the third stage are one or more of amygdalus pedunculata, haloxylon ammodendron, salix psammophila, sea buckthorn and Calligonum mongolicum; the barrier wall is used for fixing sand and preserving water to prevent wind erosion, the leguminous shrubs are used for enhancing the stability of sandy soil and preserving water in the second stage, and the arbor or shrubs are used for main planting to form forests in the third stage; the sand sagebrush is connected by using a connecting device, the connecting device comprises an anchor pipe (1), the anchor pipe (1) is a hollow pipe, a filling column (2) is arranged inside the anchor pipe (1), the anchor pipe (1) is used for being inserted into soil, the filling column (2) is filled inside the anchor pipe (1), when the anchor pipe (1) is inserted into the soil, the filling column (2) is pulled out, fertilizer is filled into the anchor pipe (1), and then the filling column (2) is inserted into the anchor pipe (1); The anchor pipe (1) is characterized in that the upper end of the anchor pipe (1) is provided with connecting parts (3), the number of the connecting parts (3) is more than 2, the connecting parts (3) are positioned above the ground and are not inserted into the soil, the connecting parts (3) are used for connecting two halves of two adjacent sand sagebrush, the connecting parts (3) comprise ropes (31), lock catches (32), hanging frames (33) and closing-up parts (34), the hanging frames (33) are fixedly connected to the outer wall of the anchor pipe (1), the ropes (31) comprise a first end and a second end, the first end and the second end are respectively connected with one lock catch (32), each lock catch (32) is detachably connected to the hanging frame (33) adjacent to the first end, the ropes (31) form a closed loop, and the closing-up parts (34) are sleeved outside the ropes (31) of the closed loop and are used for tightening the ropes (31); the fertilizer comprises 1000 parts of organic fertilizer and 3-5 parts of gibberellin GA3; the gibberellin GA3 is used for improving the absorption rate of the artemisia desertorum on nitrogen, phosphorus and potassium; the filling amount of the fertilizer is 1/3-1/2 of the height of the anchoring pipe (1).
2. The three-stage forestation method of the desertification area according to claim 1, wherein the anchor pipe (1) is a cylindrical hollow pipe, a hollow tip is arranged at the bottom of the cylindrical hollow pipe, the inner diameter of the anchor pipe (1) is 5 cm-10 cm, the height of the cylindrical hollow pipe is 10 cm-20 cm, and the height of the hollow tip is 1 cm-3 cm.
3. The method of three-stage forestation in a desertification area according to claim 1, wherein the barrier walls are provided in 1-5 rows.
4. The three-stage forestation method of the desertification area according to claim 1, wherein leguminous shrubs are planted in 2-5 rows on the leeward side of the barrier wall, and the row spacing is 3-4 meters.

Description

Three-stage forestation method for desertification area Technical Field The invention belongs to the technical field of forestation, and particularly relates to a three-stage forestation method in desertification areas. Background The outstanding climate in desertification areas is characterized by rare rainfall, large evaporation capacity, serious wind erosion, low organic matter content in soil and great vegetation recovery difficulty. The forestation technology in the desert area is continuous, and mainly comprises the following measures: (1) Soil and water conservation, such as deep ploughing, applying organic fertilizer and laying a cover. (2) Cultivating tree species with strong stress resistance, such as haloxylon ammopiptanthus, tamarix chinensis, etc. (3) And strengthening management, namely controlling plant diseases and insect pests, natural disasters and the like in the forestation area by introducing artificial intelligence, big data and the like. However, under the influence of various factors such as lack of water resources, poor soil quality and bad climate conditions in desert areas, it is very difficult to maintain water and soil and improve the survival rate of vegetation in the forestation process. Disclosure of Invention In order to solve the technical problems, the invention provides a three-stage forestation method in desertification areas, aiming at the characteristics of wind and water in the desertification areas, the forestation method is implemented in three stages, the spring planting is used for fixing flowing sand by a barrier, the autumn planting is used for fixing nitrogen-fixing shrubs and stabilizing soil, the rainy season is used for planting trees or economic forest shrubs to form forests, and the forestation survival rate can reach 90%. The invention aims to provide a three-stage forestation method in desertification areas, which is completed by accumulating two to three years in three stages and comprises the following steps: first stage, barrier-stabilized sand The barrier is erected to give up the traditional technology of blocking and blocking sand by wheat straw. The sand sagebrush planting barrier wall is adopted, the barrier wall is erected against wind according to wind direction, the density of a sand sagebrush is planted in the barrier wall according to 50 cm-70 cm, namely, in one row of barrier wall, the planting distance of the sand sagebrush is 50 cm-70 cm, the sand sagebrush is torn from the middle, and the left half and the right half of the sand sagebrush are sequentially connected. After the arrangement, wind can pass through the barrier walls, so that the wind speed on the ground surface is reduced, and wind erosion is reduced. After the barrier wall is built, the surface of the sand is smooth and stable, the water-bearing layer is uniform, the subsequent treatment is convenient, after the planted sand sagebrush survives, the vegetation recovery biomass is increased, and the natural growth of wild grass seeds nearby the sand is also convenient. In some embodiments, the left half and the right half are formed after tearing the sand sagebrush from the middle, the left half being connected to the right half of the sand sagebrush on its left side, and the right half being connected to the left half of the sand sagebrush on its right side. In some embodiments, the connection is by tying the two halves of the sand sagebrush with a string or by tying the sand sagebrush with its adjacent sand sagebrush. In some embodiments, the barrier walls are arranged 1-5 rows, such as 1 row, 2 rows, 3 rows, 4 rows, or 5 rows, facing the wind. The row spacing is 3-4 meters, and the preferable row spacing is 3 meters. The second stage is to plant leguminous shrubs on the leeward side of the barrier wall Checking the wind erosion gap of the planting supplement in the current year or the autumn of the second year when the barrier wall is arranged, planting leguminous shrubs on the leeward side of the barrier wall by using the sand sagebrush to plant the wind erosion gap. In some embodiments, the leguminous shrub is one or more of amorpha fruticosa, ammopiptanthus mongolicus, alhagi sparsifolia, ammopiptanthus mongolicus, sappan wood, or caragana korshinskii. In some embodiments, leguminous shrubs are spaced 1 meter to 3 meters apart and rows are spaced 1 meter to 3 meters apart. Leguminous shrubs are planted in 2-5 rows on the leeward side of the barrier wall. The row spacing between the leguminous shrubs and the barrier walls is also 1-3 meters. Third stage, planting arbor or shrub on the barrier wall In the second year or the third year of setting the barrier wall, checking the wind erosion gap, filling the gap with the same shrubs as the original, and then planting arbor or shrubs at the barrier wall. In some embodiments, the arbor planted in the third stage is one or more of pinus sylvestris, elm, oleaster, and populus euphratica. In some embodiments, the shrubs planted in